Kamiya Yuichi

Faculty of Environmental Earth Science　Materials Science　Functional Materials ChemistryProfessor
One Health Research CenterProfessor
Last Updated :2026/03/26

■Researcher basic information

Researchmap personal page

Home Page URL

Researcher number

  • 10374638

J-Global ID

Research Keyword

  • 触媒化学
  • Environmental Science
  • Material Chemistry
  • Catalysis

Research Field

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Catalytic processes and resource chemistry

Educational Organization

■Career

Career

  • Apr. 2015 - Present
    Faculty of Environmental Earth Science, Section of Materials Science, Professor
  • Apr. 2007 - Mar. 2015
    大学院地球環境科学研究院, 准教授
  • Mar. 2005 - Mar. 2007
    大学院地球環境科学研究院, 助教授
  • 2005 - 2007
    Associate Professor, Faculty of Environmental Earth Science

Educational Background

  • Apr. 1995 - Mar. 1997, Nagoya University, 大学院, 工学研究科応用化学専攻修士課程
  • Apr. 1991 - Mar. 1995, Nagoya University, School of Engineering, 応用化学科

■Research activity information

Awards

  • May 2008, 石油学会, 平成19年度石油学会奨励賞　　　　　　　　　　　　　　　
    "層状化合物を前駆体とする結晶性バナジウムーリン複合酸化物触媒の合成とその選択酸化触媒作用に関する研究"
    Japan
  • 2004, Young Scientist Prize of the International Association of Catalysis Societies (13th International Congress on Catalysis)　　　　　　　　　　　　　　　

Papers

Other Activities and Achievements

Books and other publications

  • Design of Materials and technologies for Environmental Remediation　　　　　　　　　　　　　　　
    Shunitz Tanaka, Masaaki Kurasaki, Masaaki Morikawa, Yuichi Kamiya
    Springer, 2023, 9789811952357, [Joint work]
  • 固定化触媒のルネッサンス　　　　　　　　　　　　　　　
    株式会社シーエムシー出版, 2007
  • 環境修復の科学と技術　　　　　　　　　　　　　　　
    北海道大学出版会, 2007
  • エコマテリアルハンドブック　　　　　　　　　　　　　　　
    丸善株式会社, 2006
  • Encyclopedia of Inorganic Chemistry-2nd Edition　　　　　　　　　　　　　　　
    John Wiley & Sons, Ltd,, 2005
  • 表面・界面工学大系（下巻）　　　　　　　　　　　　　　　
    株式会社テクノシステム, 2005

Affiliated academic society

  • ゼオライト学会　　　　　　　　　　　　　　　
  • 触媒学会　　　　　　　　　　　　　　　
  • 日本化学会　　　　　　　　　　　　　　　
  • 石油学会　　　　　　　　　　　　　　　

Research Themes

  • 硝酸イオン汚染地下水の高速浄化を実現するアニオン交換能を付与した金属触媒の開発
    科学研究費助成事業
    Apr. 2025 - Mar. 2028
    神谷 裕一
    日本学術振興会, 基盤研究(B), 北海道大学, Principal investigator, 25K01577
  • 下水からのアンモニア製造を実現する水中硝酸イオン還元触媒の開発
    科学研究費助成事業
    Jun. 2025 - Mar. 2027
    神谷 裕一, 大友 亮一
    日本学術振興会, 挑戦的研究(萌芽), 北海道大学, Principal investigator, 25K22176
  • 地球温暖化の抑制に不可欠な亜酸化窒素の室温高速分解触媒の開発補助事業　　　　　　　　　　　　　　　
    2025年度 機械振興補助事業
    Apr. 2025 - Mar. 2026
    公益財団法人 JKA, Principal investigator, 2025M-322
  • 硝酸イオン汚染地下水の高速浄化を可能にする金微粒子を内包したアニオン交換体の開発
    Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Apr. 2021 - Mar. 2024
    神谷 裕一, 大友 亮一
    アニオン交換体に市販の弱塩基性イオン交換樹脂（AER）を用い、AuCl4-水溶液にAERを加え38℃で8時間、撹拌することで、AERのアニオン交換サイトにAuCl4-を導入した。その後、水素気流下、80℃でAuCl4-を還元してAER内にAuナノ粒子を発生させた。AuCl4-水溶液の濃度が高くなるに従ってAERに導入されるAu量が上昇した。Au導入量の多いAu-AERでは、Au未導入のAERとほぼ同等のイオン交換特性を示したことから、AuCl4-はAu0へと還元され、このとき生じたCl-がAERのイオン交換サイトを再生したと考えた。
    NO3-水溶液にAu-AERを加え38℃で撹拌して、Au-AERにNO3-を取り込んだ。このAu-AERを水素気流下で80℃に加熱すると、Au-AERに取り込まれたNO3-の一部（最大35%程度）が還元分解された。Au未導入のAERでは全くNO3-が分解されなかったことから、Auナノ粒子がNO3-還元分解の活性サイトを形成していることが確かめられた。このAu-AERは繰り返し使用でき、少なくとも3回の再使用において顕著な性能低下は見られなかった。
    AERに導入したAu量が多いほど還元分解されたNO3-量は多くなったが、Au導入量 0.037 mmol/g以上では活性向上の程度が大幅に鈍化した。この導入量以上では、Au粒子の凝集が見られたことから、粗大なAu粒子がこの原因であると推測した。
    Au粒子が凝集することなく、より多量のAuをAERに導入するために、複数回に分けてAuCl4-を導入することを試みたが、NO3-分解活性は向上しなかった。またAER粒子内部までAuCl4-を十分に拡散させることを意図して十分に粉砕したAER粉を用いてみたが、これも十分な効果は得られなかった。さらなる検討が必要である。
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B), Hokkaido University, Principal investigator, 21H01709
  • Construction of active sites composed of multi-functional groups with precisely controlled distance by use of decomposition reaction
    Grants-in-Aid for Scientific Research Challenging Research (Exploratory)
    Jun. 2019 - Mar. 2021
    Kamiya Yuichi
    Adjacent acid-base pair sites, which were consisted of carboxyl and amine groups, were constructed on silica surface by hydrolysis of an amide compound, which were anchored on the silica in advance. It was found that this catalyst showed extremely high catalytic activity for cross-aldol condensation of 4-nitrobenzaldehyde with acetone. The acid-base pair sites that were three methylene groups away from each other, which were constructed using an diamide compound that contains three methylene groups in the structure, showed less activity for the reaction that the catalyst with adjacent acid-base pair sites, demonstrating that the distance between acid and base functional groups was important factor for the reaction.
    Japan Society for the Promotion of Science, Challenging Research (Exploratory), Hokkaido University, Principal investigator, 19K22074
  • Development of a nickel catalyst added with zinc contributing to purification of groundwater polluted with nitrate
    Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
    Apr. 2018 - Mar. 2021
    Kamiya Yuichi
    Expose of supported nickel catalysts to air made their catalytic activity lost in reduction of nitrate with hydrogen in water. Thus, to bring out their inherent catalytic performances, it was necessary to remove air from the reaction systems as much as possible. The catalytic performances of supported nickel catalysts for reduction of nitrate with hydrogen in water were significantly changed depending on support for nickel and co-catalyst added to nickel. It was found that a supported nickel catalyst with alumina support and zinc as a co-catalyst with 0.04 of atomic ratio of zinc to nickel showed high catalytic activity and suppressed undesirable ammonia formation.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B), Hokkaido University, Principal investigator, 18H01780
  • 小規模施設に適したアンモニア態窒素含有廃水高度処理のための高性能触媒の開発　　　　　　　　　　　　　　　
    住友財団: 環境研究助成
    Nov. 2016 - Nov. 2017
    神谷 裕一
    Principal investigator, Competitive research funding
  • Development of high performance solid catalysts for oxidative decomposition of ammonia in waste water under mild reaction conditions
    Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
    Apr. 2014 - Mar. 2017
    Kamiya Yuichi
    We have developed high performance cobalt oxide catalysts for oxidative decomposition of ammonia in waste water under mild reaction conditions. Catalytic performances of the cobalt oxide catalysts changed depending on their particle configuration and cubic and truncated octahedron shaped cobalt oxides gave high catalytic activity for the reaction. Thermal treatment of cobalt oxides in waste water containing ammonia brought about formation of amino group on the surface. leading to enhancement in the catalytic performance with repeated use for the reaction.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (C), Hokkaido University, Principal investigator, 26420782
  • Catalytic properties of ionic crystals composed of molecular metal oxide anions with functional groups
    Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
    Apr. 2012 - Mar. 2014
    KAMIYA Yuichi
    Neutral cesium salts of Keggin-type heteropoly anions introduced with hydroxyl, n-butyl, and n-octyl groups were synthesized and their structures and catalytic performances were investigated. Regardless of the functional groups introduced into the Keggin-type heteropoly anions, the neutral cesium salts had the same crystal structure each other and were microporous materials with micropore of about 0.6 nm. Among the neutral cesium salts tested here, that with n-octyl group showed the highest activity for oxidation of alcohol with hydrogen peroxide. The hydrophobic reaction field formed inside the micropore with n-ocytl group may cause the high catalytic activity.
    Japan Society for the Promotion of Science, Grant-in-Aid for Young Scientists (B), Hokkaido University, Principal investigator, 24760634
  • Structure engineering of functional solid catalysts by unit-network methodology
    Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
    Apr. 2011 - Mar. 2014
    UEDA Wataru, TAKEGUCHI Tatsuya, SHIMIZU Kenichi, MURAYAMA Toru, SADAKANE Masahiro, KAMIYA Yuichi
    Structure engineering of functional solid catalysts has been conducted on the basis of unit-network methodology of molecular-type polyoxide units under hydrothermal condition for creating three-dimensional network structure of the units. The methods were applied to metal oxide components in 6, 5 and 4 element group and successfully gave various solids with nano-size structure with a heptagonal structural unit, confirming the applicability of the method for creating high-dimensional solid structures. This method was also found useful for creating a new three-dimensional zeolite-type porous solid based on molecular-type polyoxide units. The materials are totally new and showed unique adsorption property for CO2 and ethane. These obtained materials showed solid-acid property and incomparable catalytic property based on an asymmetric porous structure.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (A), Hokkaido University, Coinvestigator not use grants, 23246135
  • 水資源の永続的確保のための水中硝酸イオン還元無害化に関する研究　　　　　　　　　　　　　　　
    環境研究助成
    Nov. 2009 - Oct. 2010
    神谷 裕一
    住友財団, Principal investigator, Competitive research funding
  • Studies on effect of materials containing in groundwater for catalytic purification of groundwater polluted with nitrate and countermeasure development
    Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
    2008 - 2010
    KAMIYA Yuichi
    Pollution of groundwater with nitrate caused by overfertilization is increasing problem in the world. Active carbon-supported Cu-Pd catalyst decomposed almost all nitrate into nitrogen gas by the hydrogenation in water. However, the Active carbon-supported Cu-Pd catalyst was remarkably deactivated by chlorine contained in groundwater for remediation of actual groundwater. In contrast, active carbon-supported Sn-Pd catalyst showed high catalytic performance even in the reaction solution containing chlorine and remediated the actual groundwater polluted with nitrate. The reaction system consisted of platinum-modified titanium oxide and Sn-Pd/Al_2O_3 promoted effectively photocatalytic reduction of nitrate in the actual groundwater.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (C), Hokkaido University, Principal investigator, 20560717
  • 環状アルカンの高選択的水素化開環触媒の開発とクリーガソリン合成への適用　　　　　　　　　　　　　　　
    研究助成
    Apr. 2007 - Mar. 2008
    神谷 裕一
    石油学会, Principal investigator, Competitive research funding
  • Development of catalytic system with nano-cluster catalyst for restoration of ground water polluted by nitrate
    Grants-in-Aid for Scientific Research
    Apr. 2005 - Mar. 2007
    OKUHARA Toshio, KAMIYA Yuichi
    Pollution of groundwater with nitrate (NO_3^-) is a widespread problem, since excess intake of nitrate causes blue baby syndrome for infants and diabetes and cancers. The major sources are agricultural practices (fertilizers and excretions of livestock), and the remediation of groundwater is urgent issue. The biological treatment, ion exchange, and reverse osmosis have still much issues. Recently catalytic hydrogenation of NO_3^-to N_2 have attracted much attention. It is necessary to reduce the levels of harmful components to the maximum allowable levels, 50, 0.1-3, and 0.5 ppm for nitrate, nitrite (NO_2^-), and NH_3.
    We found that Cu-Pd clusters supported on active carbon are highly selective for the hydrogenation of NO_3^- to NO_2^- at high pH. On the other hand, Pd exchanged beta zeolite catalyzed selectively the hydrogenation of NO_2^- to N_2 and N_2O. From these findings, we were inspired in a two-stage process which allows catalysts optimized for each stage ; NO_3^-hydrogenation to NO_2^-in the first stage and NO_2^-hydrogenation in the second stage. Here we wish to report that the two-stage process consisting of Cu-Pd cluster/AC and Pd/beta-zeolite is promising for the purification of water contaminated nitrate. It should be emphasized that the concentration of NH_3 was only 0.7 and 0.6 ppm at 298 and 288 K, respectively which are very close to the allowable value (0.5 ppm) for drinking water.
    Then a one-stage process aimed at drinking water using a single catalyst, the catalyst with acceptable activity, selectivity, and stability for the practical use is searched 2wt%Pd-1.2wt%Cu/mordenite (Si/Al=37) was highly selective to N_2 and N_2O, depressing NH_3 (5 ppm from 200 ppm of nitrate) and exhibited robust stability at 278-333 K. Cu-Pd/mordenites that were prepared by ion-exchange method. Recently, Pd-Cu/hydrophobic AC catalysts prepared from Pd-Cu cluster exhibited was found to be high active and selective, that is, be greatly suppressed for the formation of ammonia. Furthermore, this catalyst has worked even in the presence of sulfated ion and chloride ion.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (C), HOKKAIDO UNIVERSITY, Principal investigator, Competitive research funding, 17560678
  • Development of catalytic system with nano-cluster catalyst for restoration of ground water polluted by nitrate
    Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
    2005 - 2006
    OKUHARA Toshio, KAMIYA Yuichi
    Pollution of groundwater with nitrate (NO_3^-) is a widespread problem, since excess intake of nitrate causes blue baby syndrome for infants and diabetes and cancers. The major sources are agricultural practices (fertilizers and excretions of livestock), and the remediation of groundwater is urgent issue. The biological treatment, ion exchange, and reverse osmosis have still much issues. Recently catalytic hydrogenation of NO_3^-to N_2 have attracted much attention. It is necessary to reduce the levels of harmful components to the maximum allowable levels, 50, 0.1-3, and 0.5 ppm for nitrate, nitrite (NO_2^-), and NH_3.
    We found that Cu-Pd clusters supported on active carbon are highly selective for the hydrogenation of NO_3^- to NO_2^- at high pH. On the other hand, Pd exchanged beta zeolite catalyzed selectively the hydrogenation of NO_2^- to N_2 and N_2O. From these findings, we were inspired in a two-stage process which allows catalysts optimized for each stage ; NO_3^-hydrogenation to NO_2^-in the first stage and NO_2^-hydrogenation in the second stage. Here we wish to report that the two-stage process consisting of Cu-Pd cluster/AC and Pd/beta-zeolite is promising for the purification of water contaminated nitrate. It should be emphasized that the concentration of NH_3 was only 0.7 and 0.6 ppm at 298 and 288 K, respectively which are very close to the allowable value (0.5 ppm) for drinking water.
    Then a one-stage process aimed at drinking water using a single catalyst, the catalyst with acceptable activity, selectivity, and stability for the practical use is searched 2wt%Pd-1.2wt%Cu/mordenite (Si/Al=37) was highly selective to N_2 and N_2O, depressing NH_3 (5 ppm from 200 ppm of nitrate) and exhibited robust stability at 278-333 K. Cu-Pd/mordenites that were prepared by ion-exchange method. Recently, Pd-Cu/hydrophobic AC catalysts prepared from Pd-Cu cluster exhibited was found to be high active and selective, that is, be greatly suppressed for the formation of ammonia. Furthermore, this catalyst has worked even in the presence of sulfated ion and chloride ion.
    Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (C), HOKKAIDO UNIVERSITY, Coinvestigator, 17560678
  • クリーン化学合成のための新規ナノコンポジット水中固体酸触媒の開発
    Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)
    2005 - 2006
    神谷 裕一
    環境負荷の大きい硫酸を使った化学プロセスから固体酸触媒プロセスへの転換を実現する、水中で機能する固体酸触媒(水中固体酸)の開発を行った。水中固体酸には、水中で高活性、不溶、高沈降性が求められる。水中で高活性な固体酸のCs_<2.5>H_<0.5>PW_<12>O_<40>(Cs2.5)は、触媒の一部が水に溶出ことと、低沈降性かつ濾過回収できない問題があった。本研究では、3-アミノプロピルトリエトキシシランで表面修飾したアモルファルシリカ(SiO_2-APS)の表面にCs2.5ナノ微粒子を固定化することで、これら問題を可決することに成功した(ナノコンポジット水中固体酸)。
    このナノコンポジット水中固体酸を、硫酸法で工業的に実施されているα-ピネン水和反応およびα-ピネン異性化反応への適用を試みた。α-ピネン水和反応に対して、検討した大部分の固体酸は本反応に活性を示さなかった。H-βがゼオライトの中で唯一活性を示したが、アルコール類選択率は50%であった。これらに対してナノコンポジット水中固体酸は、高活性かつ高選択的に水和反応を進行させることを見出した。この反応を水/α-ピネン/触媒の三相系で反応を行うと、α-ピネンの一水和物(α-テルピネオール)と二水和物(1,8-テルピン)の両方が生成するが、反応系に1,4-ジオキサンを加えて反応溶液/触媒の二相系で反応を行うと、アルコール類としてはα-テルピネオールのみが生成することを見出した。α-ピネン異性化反応に対しても、ヘテロポリ酸塩ナノコンポジット水中固体酸は、室温で高活性かつ高選択性を示した。
    Japan Society for the Promotion of Science, Grant-in-Aid for Young Scientists (B), Hokkaido University, Principal investigator, 17760611

Industrial Property Rights

  • ヘテロポリ酸のアルカリ金属塩及びそれらからなるオレフィンオリゴマー化用触媒　　　　　　　　　　　　　　　
    Patent right
    特開2010-260768
  • アルキル芳香族化合物の製造方法　　　　　　　　　　　　　　　
    Patent right
    特開2007-77133
  • アルキル芳香族化合物の製造方法　　　　　　　　　　　　　　　
    Patent right
    特開2007-77132
  • 撥水性を有する貴金属含有触媒　　　　　　　　　　　　　　　
    Patent right
    特許第4759731号
  • ヘテロポリ酸塩と無機酸化物とから成る組成物及びその製造法　　　　　　　　　　　　　　　
    Patent right
    特許第4524427号
  • Organic group-bounded acidic catalyst for fragrance and pharmaceuticals, has organic group(s) coupled together on surface of solid catalyst.　　　　　　　　　　　　　　　
    Patent right, Kei Inumaru, Toru Ishihara, Toshio Okuhara, Yuichi Kamiya
    特願WO2008032459-A1
  • 有機基結合酸触媒　　　　　　　　　　　　　　　
    Patent right, 犬丸 啓, 石原 亨, 奥原 敏夫, 神谷 裕一
    特願2006-248413
  • アルキルベンゼンの製造方法　　　　　　　　　　　　　　　
    Patent right, 日比 卓男, 奥原 敏夫, 神谷 裕一
    特願2005-237219
  • アルキルベンゼンの製造方法　　　　　　　　　　　　　　　
    Patent right, 日比 卓男, 奥原 敏夫, 神谷 裕一
    特願2005-237218

syllabus

  • 分子環境学特論Ⅰ, 2024年, 修士課程, 環境科学院
  • 環境物質科学特別講義Ⅰ, 2024年, 修士課程, 環境科学院
  • 環境物質科学特別講義Ⅱ, 2024年, 修士課程, 環境科学院
  • ナノ環境材料化学特論Ⅰ, 2024年, 修士課程, 環境科学院
  • 化学Ⅰ, 2024年, 学士課程, 全学教育