In situ X-ray absorption spectroscopy study on water formation reaction of palladium metal nanoparticle catalysts

被引：11

作者：

Matsumura, Daiju ^{[1
]}

Taniguchi, Masashi ^{[2
]}

Tanaka, Hirohisa ^{[2
]}

Nishihata, Yasuo ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Quantum Beam Sci Ctr, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan

[2] Daihatsu Motor Co Ltd, R&D Div, 3000 Yamanoue, Ryuo, Shiga 5202593, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 11期

关键词：

X-ray absorption spectroscopy; Palladium; Metal nanoparticle catalyst; In situ observation; Time-resolved measurement; OXIDATION; CO; PD;

D O I：

10.1016/j.ijhydene.2016.08.189

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Proper management of hydrogen gas is very important for safety security of nuclear power plants. Hydrogen removal by water formation reaction on a catalyst is one of the candidates for creating hydrogen free system. We observed in situ and time-resolved structure change of palladium metal nanoparticle catalyst during the water formation reaction by using X-ray absorption spectroscopy technique. A poisoning effect by carbon monoxide on catalytic activity was also studied. We have found that the creation of oxidized surface layer on palladium metal nanoparticles plays an important role for the water formation reaction process. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：7749 / 7754

页数：6

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