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化学生命理工学科  光物質変換化学研究室(今村研) : 2021/09/30

”Photocatalytic hydrogenation of nitrobenzene to aniline over titanium(IV) oxide using various saccharides instead of hydrogen gas”

Kazuya Imamura, Takahiro Oto, Yushiro Aono, Yuki Sakamoto, Kazuma Ikeuchi and Ayumu Onda

RSC Advances, 2021,11, 32300-32304.

Submitted 06 Aug 2021
Accepted 20 Sep 2021
First published 30 Sep 2021


TOC



”Hydrolysis of Oligosaccharides and Polysaccharides on Sulfonated Solid Acid Catalysts: Relations between Adsorption Properties and Catalytic Activities”

Yuki Sakamoto, Kazuya Imamura, and Ayumu Onda
ACS Omega 2020, 5, 24964−24972

Received: August 15, 2020 Accepted: August 31, 2020 Published: September 17, 2020


ACS Omega Sakamoto

”Ammonia synthesis over lanthanoid oxide-supported ruthenium catalysts”

S.-I. Miyahara, K. Sato, Y. Kawano, K. Imamura, Y. Ogura, K. Tsujimaru, K. Nagaoka

Catalysis Today, 2021, 376, 36-40.

Received 29 February 2020, Revised 25 June 2020, Accepted 18 August 2020, Available online 31 August 2020.

ランタン,ランタノイドの酸化物を担体として,Ruを触媒としたアンモニア合成用の触媒を開発した論文。塩基性酸化物にRuを担持すると,アンモニア合成活性が高くなることがわかっている。ランタンとランタノイドの酸化物は塩基性酸化物。


Ru/ランタノイド


”Kinetics of ammonia synthesis over Ru/Pr2O3”

K. Imamura, S.-I. Miyahara, Y. Kawano, K. Sato, Y. Nakasaka, K. Nagaoka
Journal of the Taiwan Institute of Chemical Engineers, 2019, 105, 50-56.

Received 30 March 2019, Revised 4 October 2019, Accepted 9 October 2019, Available online 25 October 2019.

Ru/Pr2O3を触媒として使ったアンモニア合成の速度論的な解析を行った論文。


アンモニア合成

”Photocatalytic chemoselective cleavage of C-O bonds under hydrogen gas- and acid-free conditions”

Kazuya Imamura, Hiroko Kato, Yuichiro Wada,b Kazuhiro Makabe, Ayumu Onda, Atsuhiro Tanaka, Hiroshi Kominami, Katsutoshi Satobd and Katsutoshi Nagaoka, Chem. Commun., 2018,54, 7298-7301.

The article was received on 25 Apr 2018, accepted on 15 May 2018 and first published on 17 May 2018.

Pd-TiO2光触媒を使った,C-O結合の選択的な切断の論文。C-O結合の切断はバイオマスを化学原料として利用するために重要な技術。C-O結合の選択的な切断を光触媒的に行なったのはこれが世界初。


C-O結合の開裂

”Titanium(IV) oxide having a copper co-catalyst: a new type of semihydrogenation photocatalyst working efficiently at an elevated temperature under hydrogen-free and poison-free conditions”

Hiroshi Kominami, Misaki Shiba, Akimi Hashimoto,a Shota Imai, Kousuke Nakanishi, Atsuhiro Tanaka, Keiji Hashimoto and Kazuya Imamura, Phys. Chem. Chem. Phys. 2018, 20, 19321-19325.

The article was received on 11 Apr 2018, accepted on 21 May 2018 and first published on 21 May 2018.


Elevated temperature

”Ring hydrogenation of aromatic compounds in aqueous suspensions of an Rh-loaded TiO2 photocatalyst without use of H2 gas”

Kousuke Nakanishi, Ryosuke Yagi, Kazuya Imamura, Atsuhiro Tanaka, Keiji Hashimoto and Hiroshi Kominami, Catal. Sci. Technol., 2018,8, 139-146.

The article was received on 20 Sep 2017, accepted on 13 Nov 2017 and first published on 13 Nov 2017.


核水素化

過去の論文

Synthesis of novel layered zinc glycolate and exchange of ethylene glycol with manganese acetate complex
Kaori Takase, Hitoshi Nishizawa, Kazuya Imamura, Ayumu Onda, Kazumichi Yanagisawa, Shu Yin
Bulletin of the Chemical Society of Japan 91 1546-1552 2018年1月

Titanium(iv) oxide having a copper co-catalyst: A new type of semihydrogenation photocatalyst working efficiently at an elevated temperature under hydrogen-free and poison-free conditions
Hiroshi Kominami, Misaki Shiba, Akimi Hashimoto, Shota Imai, Kousuke Nakanishi, Atsuhiro Tanaka, Keiji Hashimoto, Kazuya Imamura
Physical Chemistry Chemical Physics 20 19321-19325 2018年1月

Photocatalytic chemoselective cleavage of C-O bonds under hydrogen gas- and acid-free conditions
Kazuya Imamura, Hiroko Kato, Yuichiro Wada, Kazuhiro Makabe, Ayumu Onda, Atsuhiro Tanaka, Hiroshi Kominami, Katsutoshi Sato, Katsutoshi Nagaoka
Chemical Communications 54 7298-7301 2018年1月

Ring hydrogenation of aromatic compounds in aqueous suspensions of an Rh-loaded TiO<inf>2</inf> photocatalyst without use of H<inf>2</inf> gas
Kousuke Nakanishi, Ryosuke Yagi, Kazuya Imamura, Atsuhiro Tanaka, Keiji Hashimoto, Hiroshi Kominami
Catalysis Science and Technology 8 139-146 2018年1月

Carbon-free H<inf>2</inf> production from ammonia triggered at room temperature with an acidic RuO<inf>2</inf>/γ-Al<inf>2</inf>O<inf>3</inf> catalyst
Katsutoshi Nagaoka, Takaaki Eboshi, Yuma Takeishi, Ryo Tasaki, Kyoko Honda, Kazuya Imamura, Katsutoshi Sato
Science Advances 3 2017年4月

Copper-Modified Titanium Dioxide: A Simple Photocatalyst for the Chemoselective and Diastereoselective Hydrogenation of Alkynes to Alkenes under Additive-Free Conditions
Hiroshi Kominami, Megumi Higa, Taketo Nojima, Tomohiko Ito, Kousuke Nakanishi, Keiji Hashimoto, Kazuya Imamura
ChemCatChem 8 2019-2022 2016年6月

A low-crystalline ruthenium nano-layer supported on praseodymium oxide as an active catalyst for ammonia synthesis
Katsutoshi Sato, Kazuya Imamura, Yukiko Kawano, Shin ichiro Miyahara, Tomokazu Yamamoto, Syo Matsumura, Katsutoshi Nagaoka
Chemical Science 8 674-679 2016年1月

Organically modified titania having a metal catalyst: A new type of liquid-phase hydrogen-transfer photocatalyst working under visible light irradiation and H<inf>2</inf>-free conditions
Hiroshi Kominami, Shin Ya Kitagawa, Yuki Okubo, Makoto Fukui, Keiji Hashimoto, Kazuya Imamura
Physical Chemistry Chemical Physics 18 16076-16079 2016年1月