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Shuichi Kagawa
Researcher at Nagasaki University
Publications - 119
Citations - 4905
Shuichi Kagawa is an academic researcher from Nagasaki University. The author has contributed to research in topics: Catalysis & Zeolite. The author has an hindex of 34, co-authored 119 publications receiving 4746 citations.
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Journal ArticleDOI
Removal of nitrogen monoxide through a novel catalytic process. 1. Decomposition on excessively copper-ion-exchanged ZSM-5 zeolites
TL;DR: In this paper, the number of copper ions that can adsorb NO molecules has been determined by a temperature-programmed desorption technique combined with IR measurement; 94% of Cu{sup 2+} ions in ZSM-5 were active for the adsorption.
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Copper(II) ion-exchanged ZSM-5 zeolites as highly active catalysts for direct and continuous decomposition of nitrogen monoxide
Masakazu Iwamoto,Hiroshi Furukawa,Yoshihiro Mine,Fumihide Uemura,Shin-ichi Mikuriya,Shuichi Kagawa +5 more
TL;DR: In this article, ZSM-5 zeolites containing Cu2+ ions showed unusually high and steady state activity for the catalytic decomposition of nitrogen monoxide; for example, the degrees of conversions of NO, and of conversion into N2 and O2 were 97, 85, and 70%, respectively, at 823 K with a contact time of 10.0 g s cm−3 over 73% exchanged Cu-ZSM−5.
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Removal of nitrogen monoxide through a novel catalytic process. 2. Infrared study on surface reaction of nitrogen monoxide adsorbed on copper ion-exchanged ZSM-5 zeolites
Masakazu Iwamoto,Hidenori Yahiro,Noritaka Mizuno,Wen Xiang Zhang,Yoshihiro Mine,Hiroshi Furukawa,Shuichi Kagawa +6 more
TL;DR: In this article, the adsorption of NO onto copper loaded ion-exchanged zeolites was studied by means of infrared spectroscopy coupled with isotopic techniques, and the binding sites which would bind NO were identified.
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Catalytic decomposition of nitric oxide over copper(II)-exchanged, Y-type zeolites
TL;DR: In this article, the catalytic decomposition of NO has been investigated over copper-exchanged Y-type zeolites (CuNaY) at 573-823 K in a flow reactor.
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Synthesis of LaKMnO perovskite-type oxides and their catalytic property for simultaneous removal of NOx and diesel soot particulates
TL;DR: In this paper, mixed metal oxides were synthesized and their catalytic properties toward the simultaneous NO x −soot removal reaction were investigated, and the authors revealed that the LaKMnO oxides are good candidates of catalysts for the simultaneous No x −SOOT removal reaction, and that the activity and the NO x reduction selectivity depended significantly on the K content.