研究者データベース

SHROTRI ABHIJIT(シユロトリ アビジツト)
触媒科学研究所 物質変換研究部門
助教

基本情報

所属

  • 触媒科学研究所 物質変換研究部門

職名

  • 助教

J-Global ID

研究キーワード

  • Glycosylation   CO2 Conversion   Chemical engineering   Biomass conversion   Metal catalyst   Carbon   Cellulose   Catalysis   

研究分野

  • ナノテク・材料 / グリーンサステイナブルケミストリー、環境化学
  • ものづくり技術(機械・電気電子・化学工学) / 触媒プロセス、資源化学プロセス

職歴

  • 2016年06月 - 現在 Hokkaido University Institute for Catalysis Assistant Professor
  • 2014年05月 - 2016年06月 Hokkaido University Postdoctoral Fellow
  • 2012年03月 - 2012年10月 University of Queensland, Australia Teaching Assistant
  • 2011年01月 - 2011年04月 University of Queensland, Australia Research Assistant
  • 2006年09月 - 2009年12月 Reliance Industries Limited, India Process Engineer

学歴

  • 2010年 - 2014年   University of Queensland, Australia   PhD in Chemical Engineering
  • 2002年 - 2006年   Governmet Engineering College, Raipur   Bachelor of Chemical Cngineering

所属学協会

  • American Chemical Society (ACS)   化学工学会   Institution of Chemical Engineers (IChemE)   触媒学会   

研究活動情報

論文

  • Bishal Boro, Mrinal Kanti Adak, Sohag Biswas, Chitra Sarkar, Yogendra Nailwal, Abhijit Shrotri, Biswarup Chakraborty, Bryan M Wong, John Mondol
    Nanoscale 2022年05月 [査読有り]
  • Yayati Naresh Palai, Abhijit Shrotri, Atsushi Fukuoka
    ACS Catalysis 12 6 3534 - 3542 2022年03月18日 [査読有り]
  • Waqar Ahmad, Fan Liang Chan, Abhijit Shrotri, Yayati Naresh Palai, Huanting Wang, Akshat Tanksale
    Journal of Energy Chemistry 66 181 - 189 2022年03月 [査読有り]
  • Nazmul Hasan MD Dostagir, Rattanawalee Rattanawan, Min Gao, Jin Ota, Jun-ya Hasegawa, Kiyotaka Asakura, Atsushi Fukouka, Abhijit Shrotri
    ACS Catalysis 11 15 9450 - 9461 2021年08月06日 [査読有り]
  • Pengru Chen, Abhijit Shrotri, Atsushi Fukuoka
    Applied Catalysis A: General 621 118177 - 118177 2021年07月 [査読有り]
  • Malik Albrahim, Coogan Thompson, Denis Leshchev, Abhijit Shrotri, Raymond R. Unocic, Jiyun Hong, Adam S. Hoffman, Michael J. Meloni, Ron C. Runnebaum, Simon R. Bare, Eli Stavitski, Ayman M. Karim
    The Journal of Physical Chemistry C 125 20 11048 - 11057 2021年05月27日 [査読有り]
  • Lingcong Li, Nazmul H. MD Dostagir, Abhijit Shrotri, Atsushi Fukuoka, Hirokazu Kobayashi
    ACS Catalysis 11 7 3782 - 3789 2021年04月02日 [査読有り]
  • Yayati Naresh Palai, Abhijit Shrotri, Miyuki Asakawa, Atsushi Fukuoka
    Catalysis Today 365 241 - 248 2021年04月 [査読有り]
  • Lina Mahardiani, Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Catalysis Today 357 409 - 415 2020年11月 [査読有り]
  • Nazmul Hasan MD Dostagir, Coogan Thompson, Hirokazu Kobayashi, Ayman M. Karim, Atsushi Fukuoka, Abhijit Shrotri
    Catalysis Science & Technology 10 24 8196 - 8202 2020年10月 [査読有り]
     

    Atomically dispersed Rh promoted the activity of In2O3 for methanol formation from CO2, inducing strong CO2 adsorption and enhanced formate formation.

  • Swathi Mukundan, Daria Boffito, Abhijit Shrotri, Luqman Atanda, Jorge Beltramini, Gregory Patience
    ACS Sustainable Chemistry & Engineering 8 35 13195 - 13205 2020年09月08日 [査読有り]
  • Pengru Chen, Abhijit Shrotri, Atsushi Fukuoka
    Catalysis Science & Technology 10 14 4593 - 4601 2020年06月 [査読有り]
     

    Larger cello-oligosaccharides undergo faster hydrolysis over carbon catalysts. This is attributed to reduction in activation energy caused by conformational change in the structure of oligosaccharides as they adsorb within the micropores of carbon.

  • Miyuki Asakawa, Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Green Chemistry 21 22 6146 - 6153 2019年10月 [査読有り]
     

    Furfural was synthesized from hexose sugars instead of 5-HMF by using polar aprotic solvents with very low basicity.

  • Pengru Chen, Abhijit Shrotri, Atsushi Fukuoka
    ChemSusChem 12 12 2576 - 2580 2019年06月21日 [査読有り]
  • SK Nazmul Hasan MD Dostagir, Mahendra Kumar Awasthi, Ankit Kumar, Kavita Gupta, Silke Behrens, Abhijit Shrotri, Sanjay Kumar Singh
    ACS Sustainable Chemistry & Engineering 7 10 9352 - 9359 2019年05月20日 [査読有り]
  • Chitra Sarkar, Saikiran Pendem, Abhijit Shrotri, Duy Quang Dao, Phuong Pham Thi Mai, Tue Nguyen Ngoc, Dhanunjaya Rao Chandaka, Tumula Venkateshwar Rao, Quang Thang Trinh, Matthew P. Sherburne, John Mondal
    ACS Applied Materials & Interfaces 11 12 11722 - 11735 2019年03月27日 [査読有り]
  • Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Accounts of Chemical Research 51 3 761 - 768 2018年03月20日 [査読有り][通常論文]
     
    Cellulosic biomass is the largest source of renewable organic carbon on our planet. Cellulose accounts for 40-50 wt % of this lignocellulose, and it is a feedstock for industrially important chemicals and fuels. The first step in cellulose conversion involves its depolymerization to glucose or to its hydrogenated product sorbitol. The hydrolysis of cellulose to glucose by homogeneous mineral acids was the subject of research for almost a century. However, homogeneous acids have significant drawbacks and are neither economical nor environmentally friendly. In 2006, our group reported for the first time the ability of heterogeneous catalysts to depolymerize cellulose through hydrolytic hydrogenation to produce sorbitol. Later, we reported the hydrolysis of cellulose to glucose using carbon catalyst containing weakly acidic functional groups. Understanding the reaction between cellulose and heterogeneous catalyst is a challenge as the reaction occurs between a solid substrate and a solid catalyst. In this Account, we describe our efforts for the conversion of cellulose to sorbitol and glucose using heterogeneous catalysts. Sorbitol is produced by sequential hydrolysis and hydrogenation of cellulose in one pot. We reported sorbitol synthesis from cellulose in the presence of supported metal catalysts and H2 gas. The reducing environment of the reaction prevents byproduct formation, and harsh reaction conditions can be used to achieve sorbitol yield of up to 90%. Glucose is produced by acid catalyzed hydrolysis of cellulose, a more challenging reaction owing to the tendency of glucose to rapidly decompose in hot water. Sulfonated carbons were first reported as active catalysts for cellulose hydrolysis, but they were hydrothermally unstable under the reaction conditions. We found that carbon catalysts bearing weakly acidic functional groups such as hydroxyl and carboxylic acids are also active. Weakly acidic functional groups are hydrothermally stable, and a soluble sugar yield of 90% was achieved in a 20 min reaction. We clarified that the polycyclic aromatic surface of the carbon adsorbs cellulose molecules on its surface by CH-π and hydrophobic interactions driven by a positive change in entropy of the system. The adsorbed molecules are rapidly hydrolyzed by active sites containing vicinal functional groups that recognize the hydroxyl groups on cellulose to achieve a high frequency factor. This phenomenon is analogous to the hydrolysis of cellulose by enzymes that use CH-π and hydrophobic interactions along with weakly acidic carboxylic acid and carboxylate pair to catalyze the reaction. However, in comparison with enzymes, carbon catalyst is functional over a wide range of pH and temperatures. We also developed a continuous flow slurry process to demonstrate the feasibility for commercial application of carbon-catalyzed cellulose hydrolysis to glucose using inexpensive catalyst prepared by air oxidation. We believe that further efforts in this field should be directed toward eliminating roadblocks for the commercialization of cellulose conversion reactions.
  • Saikiran Pendem, Indranil Mondal, Abhijit Shrotri, Bolla Srinivasa Rao, Nakka Lingaiah, John Mondal
    Sustainable Energy & Fuels Royal Society of Chemistry ({RSC}) 2018年 [査読有り][通常論文]
  • Abhijit Shrotri, Hirokazu Kobayashi, Hiroyuki Kaiki, Mizuho Yabushita, Atsushi Fukuoka
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 56 49 14471 - 14478 2017年12月 [査読有り][通常論文]
     
    The catalytic conversion of cellulose to glucose at the industrial scale is a sustainable approach to the production of fuels and chemicals. Herein, we report the hydrolysis of cellulose to glucose using an inexpensive carbon catalyst in a continuous slurry process. A carbon catalyst prepared by air oxidation showed the highest activity for cellulose hydrolysis owing to the large number of weakly acidic functional groups. The air-oxidized carbon catalyst hydrolyzed cellulose in a plug-flow slurry reactor after mix-milling to produce soluble beta-1,4-glucans. Further hydrolysis of the beta-1,4-glucans to glucose was achieved using a fixed-bed reactor containing Amberlyst-70 catalyst in series with the slurry reactor to obtain glucose in 59% yield. Another approach was to use dilute H3PO4 for the hydrolysis of the beta-1,4-glucans to glucose with a 70% yield, resulting in a space time yield of glucose of 456 kg m(-3) h(-1). The simple design, short residence time, and high space time yield will enable the scaleup of this process using existing chemical technology.
  • Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Nanoporous Catalysts for Biomass Conversion 79 - 98 2017年09月22日 [査読有り]
  • Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Advances in Catalysis 60 1 - 57 2017年 [査読有り][通常論文]
     
    Lignocellulose and chitin are the two most abundant renewable sources of organic carbon available as alternative for chemical and fuel synthesis. Catalytic conversion of these composite polymers to monomers is a multifaceted challenge. Lignocellulose and chitin are inherently unreactive toward chemical attacks as they serve the function of structural materials in plants and animals. A combination of pretreatment and catalytic reaction is necessary to convert these materials into useful small molecules. These upstream reactions involving depolymerization of polymers are the roadblock for realizing future chemicals production based on biomass. In this chapter, we first discuss the pretreatment technologies currently available for lignocellulose and their relevance for catalytic conversion. Catalytic pathways for depolymerization of cellulose, hemicellulose, and lignin are then discussed, highlighting important reactions and mechanism. An analogy is derived between mechanism of cellulose hydrolysis using enzymes and heterogeneous carbon catalysts containing acidic functional groups. Finally, the use of chitin as a renewable carbon source is discussed. The chemical structure of chitin is described along with its origin from crab shells and availability. Recent advances in conversion of chitin to N-acetylglucosamine and its derivatives are described.
  • Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    CHEMSUSCHEM 9 11 1299 - 1303 2016年06月 [査読有り][通常論文]
     
    Oxygenated carbon catalyzes the hydrolysis of cellulose present in lignocellulosic biomass by utilizing the weakly acidic functional groups on its surface. Here we report the synthesis of a biomimetic carbon catalyst by simple and economical air-oxidation of a commercially available activated carbon. Air- oxidation at 450-500 degrees C introduced 2000-2400molg(-1) of oxygenated functional groups on the material with minor changes in the textural properties. Selectivity towards the formation of carboxylic groups on the catalyst surface increased with the increase in oxidation temperature. The degree of oxidation on carbon catalyst was found to be proportional to its activity for hydrolysis of cellulose. The hydrolysis of eucalyptus in the presence of carbon oxidized at 475 degrees C afforded glucose yield of 77% and xylose yield of 67%.
  • Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    CHEMCATCHEM 8 6 1059 - 1064 2016年03月 [査読有り][通常論文]
     
    A carbon catalyst containing a high density of carboxyl groups was prepared by solvent-free mechanochemical oxidation of activated carbon by using persulfate salts as the oxidant. The mechanochemical oxidation preferentially oxidized the carbon to introduce carboxyl groups without incorporation of sulfonated groups. The material exhibited hydrophilic behavior and was easily dispersed in water. Upon mix-milling, the oxidized carbon showed good catalytic activity for the hydrolysis of cellulose, even at a low catalyst loading. Glucose was obtained in 85% yield from mix-milled cellulose in the presence of a trace amount of HCl after a reaction time of 20min.
  • Luqman Atanda, Muxina Konarova, Qing Ma, Swathi Mukundan, Abhijit Shrotri, Jorge Beltramini
    CATALYSIS SCIENCE & TECHNOLOGY 6 16 6257 - 6266 2016年 [査読有り][通常論文]
     
    Catalytic technology for cellulosic biomass conversion has been proven to be a promising approach for valuable chemical feedstock production. However, its recalcitrant nature is a major limitation to unlocking the carbohydrate biopolymer content and their subsequent conversion into 5-hydroxymethylfural (HMF). This paper investigates the production of HMF using glucose, cellulose, sugarcane bagasse and rice husk as the feedstocks. Acid dehydration of the carbohydrate sources was conducted in a biphasic system of water-MeTHF modified with N-methyl-2-pyrrolidone (NMP) over a phosphated TiO2 catalyst. The catalyst displayed a very good catalytic performance for the conversion of glucose into HMF (91% yield). More so, it is suitable for the selective conversion of mechanocatalytic depolymerized cellulose to 74.7% yield of HMF. Cellulosic biomass could also be directly converted into HMF and furfural in reasonable yields. The efficiency of biomass-to-HMF production was further advanced after biomass fractionation treatment. Remarkable yields of 72% and 65% HMF were produced from sugarcane bagasse and rice husk, respectively. Finally, the reaction kinetics of solubilized cellulose to HMF conversion was investigated and a simplified kinetic model comprising two reaction steps was developed: (1) hydrolysis of cello-oligomers to glucose and (2) glucose dehydration to HMF.
  • Hirokazu Kobayashi, Hiroyuki Kaiki, Abhijit Shrotri, Kota Techikawara, Atsushi Fukuoka
    CHEMICAL SCIENCE 7 1 692 - 696 2016年 [査読有り][通常論文]
     
    Biomass is the sole carbon-based renewable resource for sustaining the chemical and fuel demands of our future. Lignocellulose, the primary constituent of terrestrial plants, is the most abundant non-food biomass, and its utilisation is a grand challenge in biorefineries. Here we report the first reusable and cost-effective heterogeneous catalyst for the depolymerisation of lignocellulose. Air oxidation of woody biomass (Eucalyptus) provides a carbonaceous material bearing an aromatic skeleton with carboxylic groups (2.1 mmol g(-1)) and aliphatic moieties. This catalyst hydrolyses woody biomass (Eucalyptus) to sugars in high yields within 1 h in trace HCl aq. Furthermore, after the reaction, the solid residue composed of the catalyst and insoluble ingredients of woody biomass is easily transformed back to fresh catalyst by the same air oxidation method. This is a self-contained system using woody biomass as both the catalyst source and substrate for realising facile catalyst preparation and recycling.
  • Luqman Atanda, Abhijit Shrotri, Swathi Mukundan, Qing Ma, Muxina Konarova, Jorge Beltramini
    CHEMSUSCHEM 8 17 2907 - 2916 2015年09月 [査読有り][通常論文]
     
    A water-THF biphasic system containing N-methyl-2-pyrrolidone (NMP) was found to enable the efficient synthesis of 5-hydroxymethylfurfural (HMF) from a variety of sugars (simple to complex) using phosphated TiO2 as a catalyst. Fructose and glucose were selectively converted to HMF resulting in 98% and 90% yield, respectively, at 175 degrees C. Cellobiose and sucrose also gave rise to high HMF yields of 94% and 98%, respectively, at 180 degrees C. Other sugar variants such as starch (potato and rice) and cellulose were also investigated. The yields of HMF from starch (80-85%) were high, whereas cellulose resulted in a modest yield of 33%. Direct transformation of cellulose to HMF in significant yield (86%) was assisted by mechanocatalytic depolymerization-ball milling of acid-impregnated cellulose. This effectively reduced cellulose crystallinity and particle size, forming soluble cello-oligomers; this is responsible for the enhanced substrate-catalytic sites contact and subsequent rate of HMF formation. During catalyst recyclability, P-TiO2 was observed to be reusable for four cycles without any loss in activity. We also investigated the conversion of the cello-oligomers to HMF in a continuous flow reactor. Good HMF yield (53%) was achieved using a water-methyl isobutyl ketone+NMP biphasic system.
  • Mizuho Yabushita, Hirokazu Kobayashi, Abhijit Shrotri, Kenji Hara, Shogo Ito, Atsushi Fukuoka
    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 88 7 996 - 1002 2015年07月 [査読有り][通常論文]
     
    1,4-Sorbitan is a precursor to environmentally benign surfactants, which can be produced from biomass via sorbitol. Currently, sulfuric acid-catalyzed dehydration of sorbitol is the most widely used route for industrial synthesis of 1,4-sorbitan. In this work, we have studied the mechanism of the sorbitol dehydration by sulfuric acid. Our results show that both thermodynamic and kinetic parameters play significant roles to determine the yield of 1,4-sorbitan. Sorbitol preferentially forms an adduct with sulfuric acid, thereby inhibiting the subsequent dehydration of 1,4-sorbitan to isosorbide. Furthermore, a reaction mechanism is proposed for the dehydration reaction, which involves an S(N)2 reaction on primary C1 of sorbitol attacked by OH of secondary C4.
  • Luqman Atanda, Swathi Mukundan, Abhijit Shrotri, Qing Ma, Jorge Beltramini
    CHEMCATCHEM 7 5 781 - 790 2015年03月 [査読有り][通常論文]
     
    Nanosized phosphated TiO2 catalysts with different phosphate contents were synthesized and tested for the conversion of glucose to 5-hydroxymethylfurfural. The resulting materials were characterized by using N-2-adsorption, XRD, inductively coupled plasma atomic emission spectroscopy, X-ray spectroscopy, TEM, temperature-programmed desorption of ammonia, and FTIR spectroscopy of pyridine adsorption techniques to determine their structural, bulk, surface, and acid properties. We found that TiO2 nanoparticles catalyzed this reaction under mild conditions in a water-butanol biphasic system. The incorporation of phosphorus into the TiO2 framework remarkably enhances the target product selectivity, which is ascribed to increased surface area, enhanced acidity, as well as thermal stability resulting from the Ti-O-P bond formation. Under optimal reaction conditions, phosphated TiO2 was found to exhibit excellent catalytic performance, which resulted in 97% glucose conversion and 81% HMF yield after 3 h of reaction at 175 degrees C. More importantly, the catalyst showed good stability and could be reused for several reaction cycles.
  • Luqman Atanda, Adib Silahua, Swathi Mukundan, Abhijit Shrotri, Gilberto Torres-Torres, Jorge Beltramini
    RSC ADVANCES 5 98 80346 - 80352 2015年 [査読有り][通常論文]
     
    The catalytic application of as-synthesized TiO2-ZrO2 binary oxides was examined for the conversion of glucose to produce 5-hydroxymethylfurfural (HMF). Highest HMF yield (74%) at glucose concentration of 5 wt% was obtained with TiO2-ZrO2 (1/1) and Amberlyst 70 catalyst system in a water-THF biphasic reaction system. Notably, a much higher HMF yield (86%) was achieved when the organic phase of the biphasic system was replaced with dioxane. The increased product yield may be ascribed to the role of dioxane as an aqueous phase modifier that stabilizes HMF in the reactive phase as well as promotes partitioning of HMF into the extractive layer. Furthermore, the combined catalyst and biphasic solvent systems were also effective for the conversion of glucose polymers to HMF.
  • Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    JOURNAL OF THE JAPAN PETROLEUM INSTITUTE 58 1 1 - 8 2015年01月 [査読有り][通常論文]
     
    Mechanical treatment of cellulose is an emerging concept for dramatically increasing the hydrolytic reactivity of cellulose. We report here the recent developments in the field of mix-milling and mechanocatalysis for cellulose pre-treatment. Mix-milling enhances the solid-solid contact between cellulose and carbon catalyst during hydrolysis reaction. Kinetic study shows that mix-milling specifically enhances the rate of cellulose to oligomer hydrolysis (13 fold), whereas the rate of oligomer to glucose hydrolysis is not influenced. Very high glucose yield of 88 % was obtained by mix-milling cellulose with K26 and using trace amount of HCl. Mix-milling was also applicable for single-pot hydrolytic hydrogenation of cellulose to sugar alcohols. RU/AC catalyst was stable under mix-milling condition and 68 % of sugar alcohol was obtained using only 9 atm H-2 pressure. Unlike mixmilling, mechanocatalysis takes advantage of presence of strong acid catalyst during milling to depolymerize cellulose. Completely soluble glucans were obtained after 7.5 h of milling in the presence of 0.25 mmol of acid g(-1) cellulose. The glucans were highly reactive towards conventional and transfer hydrogenation reaction, affording ca. 90 % sugar alcohol yield in both cases after 1 h reaction. The transfer hydrogenation of cellulosic glucans was successfully upgraded to a lab-scale fixed-bed reactor.
  • Abhijit Shrotri, Hirokazu Kobayashi, Akshat Tanksale, Atsushi Fukuoka, Jorge Beltramini
    CHEMCATCHEM 6 5 1349 - 1356 2014年05月 [査読有り][通常論文]
     
    Ru supported on activated carbon was found to be active for the transfer hydrogenation of cellulose oligomers, which were produced by the milling of acidulated microcrystalline cellulose. A C-6 sugar alcohol yield of 85% was obtained in less than 1h reaction time in a batch reactor. Optimum reaction conditions for transfer hydrogenation were determined as 180 degrees C and a pH above 2.2 using glucose as a substrate. Use of deuterium as a marker established that direct transfer of hydride species from 2-propanol to glucose occurs through the dihydride mechanism. Formation of molecular hydrogen from 2-propanol dehydrogenation was found to be a side reaction, with little influence on the glucose hydrogenation step. Conversion of cellulose oligomers to hexitols was also achieved in a continuous flow fixed-bed reactor with 36.4% yield at a liquid hourly space velocity of 4.7h(-1). The catalytic activity did not decrease even after 12h of the onstream reaction.
  • Siddharth Jarnbhrunkar, Meihua Yu, Jie Yang, Jun Zhang, Abhijit Shrotri, Liliana Endo-Munoz, Joel Moreau, Gaoqing Lu, Chengzhong Yu
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 135 23 8444 - 8447 2013年06月 [査読有り][通常論文]
     
    A facile vacuum-assisted vapor deposition process has been developed to control the pore size of ordered mesoporous silica materials in a stepwise manner with angstrom precision, providing an unprecedented paradigm for screening a designer hydrophobic drug nanocarrier with optimized pore diameter to maximize drug solubility.
  • Shrotri Abhijit, Lambert Lynette Kay, Tanksale Akshat, Beltramini Jorge
    Green Chemistry 15 10 2761 - 2768 2013年 [査読有り][通常論文]
  • Abhijit Shrotri, Akshat Tanksale, Jorge Norberto Beltramini, Hanmant Gurav, Satyanarayana V. Chilukuri
    CATALYSIS SCIENCE & TECHNOLOGY 2 9 1852 - 1858 2012年 [査読有り][通常論文]
     
    Sorbitol is one of the key platform chemicals that can be applied to several industrial applications, including bio-fuels and hydrogen production. Presently there is no commercial heterogeneous catalytic process to produce sorbitol from cellulose due to the low yield and high cost of noble metals required for the conversion. In this paper we describe an aqueous phase hydrolysis-hydrogenation process to convert cellulose to sorbitol using a cheap Ni based catalyst. Monometallic Ni catalysts showed little activity for the reaction, but with the addition of a small amount of Pt to the Ni catalyst (Ni : Pt = 22 : 1 atom ratio), the activity was greatly enhanced. Results showed that the bimetallic Ni-Pt catalysts supported on mesoporous alumina gave a hexitol (sorbitol + mannitol) yield of 32.4% compared to only 5% with a Ni catalyst. Moreover, Ni-Pt supported on a mesoporous beta zeolite support provided even higher yield of 36.6%. These results were obtained after only 6 hours of run at 200 degrees C and 50 bar H-2 pressure (at room temperature). The presence of a small amount of Pt promotes the protonation of water and hydrogen molecules, which spill over to Ni sites creating in situ acid sites to catalyse hydrolysis of cellulose.

書籍

  • Advances in Catalysis Vol 60
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka (担当:分担執筆範囲:Catalytic Conversion of Structural Carbohydrates and Lignin to Chemicals)
    Elsevier 2017年10月
  • Nanoporous Catalysts for Biomass Conversion
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka (担当:分担執筆範囲:Chapter 4: Recent developments in the use of porous carbon materials for cellulose conversion)
    Wiley VCH 2017年09月

講演・口頭発表等

  • Direct depolymerization of cellulose to levoglucosan over oxygenated carbon catalyst in sulfolane  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    120th Meeting of catalysis society of Japan 2017年09月 口頭発表(一般)
  • Slurry Process for Hydrolysis of Cellulose Using Heterogeneous Carbon Catalyst  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    13th European Congress on Catalysis (EuropaCat) 2017年08月 口頭発表(一般)
  • Slurry Process for Hydrolysis of Cellulose Using Heterogeneous Carbon Catalyst  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Chemeca 2017 2017年07月 口頭発表(一般)
  • Synthesis and Application of Oxygenated Carbon Catalyst for Cellulose Hydrolysis in a Slurry Process  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    16th Japan Korea Symposium on Catalysis 2017年05月 口頭発表(一般)
  • Air-oxidation of activated carbon for hydrolysis of cellulose over weakly acidic functional groups  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    7th Asia-Pacific Congress On Catalysis (APCAT-7) 2017年01月
  • From plants to modern chemicals: a shortcut through catalysis  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    7th Indian Scientist Association of Japan Symposium 2016年12月
  • Rapid conversion of cellulose using oxygenated carbon catalyst in a plug-flow slurry reactor  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    118th Meeting of catalysis society of Japan 2016年09月 口頭発表(一般)
  • Conversion of lignoccellulosic biomass to monomeric sugars in a high-pressure slurry flow reactor with oxygenated carbon catalyst  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Pre-symposium of 16th International congress on catalysis 2016年07月 口頭発表(一般)
  • Plug flow continuous reactor system for rapid conversion of cellulose to glucose using oxygened carbon catalyst  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    2015年12月 口頭発表(一般)
  • Direct conversion of cellulose to anhydo-sugars in sulfoxide containing solvents  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Institute for Catalysis International Symposium 2015年10月 ポスター発表
  • Mechanochemical Synthesis of Oxygenated Carbon Catalyst for Efficient Cellulose Hydrolysis  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    24th North American Meeting of the Catalysis Society (NAM24) 2015年06月 口頭発表(一般)
  • 5-Hydroxymethylfurfural Production from Catalytic Transformation of Carbohydrates in a Biphasic System  [通常講演]
    Luqman Atanda, Abhijit Shrotri, Qing Ma, Jorge Beltramini
    24th North American Meeting of the Catalysis Society (NAM24) 2015年06月 口頭発表(一般)
  • Mechano-chemical synthesis of oxygenated carbon catalyst for efficient cellulose hydrolysis  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Atsushi Fukuoka
    Synthesis and Applications of Functional Molecules and Materials Utilizing Biomolecules as a Motif (CRC International Symposium) 2014年09月 ポスター発表
  • Transfer hydrogenation of cellulose based oligomers over carbon supported Ru catalyst in a fixed bed reactor  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Akshat Tanksale, Atsushi Fukuoka, Jorge Beltramini
    The Seventh Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT7) 2014年06月 口頭発表(一般)
  • Transfer hydrogenation of cellulose oligomers to sugar alcohols in a fixed bed reactor  [通常講演]
    Abhijit Shrotri, Hirokazu Kobayashi, Akshat Tanksale, Atsushi Fukuoka, Jorge Beltramini
    International Symposium on Catalysis for Renewable Chemicals (TOCAT7 pre-symposium) 2014年05月 ポスター発表
  • Continuous process for catalytic conversion of cellulose to sorbitol: A step closer towards Industrial application  [通常講演]
    Abhijit Shrotri, Akshat Tanksale, Jorge Beltramini
    CSIRO Cutting Edge Symposium, Melbourne, Australia 2012年11月 口頭発表(一般)
  • Metal supported solid acid catalyst for one pot synthesis of sorbitol from cellulose  [通常講演]
    Abhijit Shrotri, Akshat Tanksale, Jorge Beltramini
    Advances in Functional Nanomaterials for Energy and Environment Applications, Sydney, Australia 2012年11月 口頭発表(一般)
  • Dissolution of cellulose in water and its catalytic conversion to sorbitol  [通常講演]
    Abhijit Shrotri, Akshat Tanksale, Jorge Beltramini
    Advances in Catalysis for Biomass Valorization, Thessaloniki, Greece 2012年07月 ポスター発表
  • Metal supported solid acid catalyst for one pot synthesis of sorbitol from cellulose  [通常講演]
    Abhijit Shrotri, Akshat Tanksale, Jorge Beltramini
    15th International Congress of Catalysis, Munich 2012年07月 口頭発表(一般)
  • Bifunctional metal supported solid acid catalyst for one pot synthesis of sorbitol from cellulose  [通常講演]
    Abhijit Shrotri, Akshat Tanksale, Jorge Beltramini
    15th National workshop on The Role of Materials in Catalysis, Chennai, India 2011年12月 ポスター発表
  • Catalytic conversion of cellulose into C6 sugar alcohols  [通常講演]
    Abhijit Shrotri, Akshat Tanksale, Jorge Beltramini
    Bioenergy Australia: Biomass for a Clean Energy Future, Sydney, Australia 2010年12月 ポスター発表

特許

  • JP2015247402A:植物性バイオマスの加水分解方法及び装置  
    Atsushi Fukuoka, Hirokazu Kobayashi, Shrotri Abhijit, Ichiro Fujita
  • JP2015247401:Method for manufacturing cellooligosaccharide  
    Ichiro Fujita, Atsushi Fukuoka, Hirokazu Kobayashi, Abhijit SHROTRI

共同研究・競争的資金等の研究課題

  • One step catalytic conversion of CO2 into acetic acid in solvent phase reaction
    Joint Use/ Strategic Research Project:
    研究期間 : 2019年 -2020年03月 
    代表者 : Abhijit Shrotri, Akshat Tanksale
  • One step catalytic conversion of CO2 into acetic acid in solvent phase reaction
    Joint use/Proposal Based Project:
    研究期間 : 2018年12月 -2019年03月 
    代表者 : Abhijit Shrotri, Akshat Tanksale
  • Catalytic synthesis of human milk oligosaccharides from sugars.
    日立北大ラボ:
    研究期間 : 2018年09月 -2019年03月 
    代表者 : アビジット シュロトリ
  • Molecularly Tailored Atomically Dispersed Catalysts for CO/CO2 hydrogenation to alcohols
    Joint Use/ Strategic Research Project:
    代表者 : Abhijit Shrotri, Ayman M Karim


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