2014年2月
Solid Solution Alloy Nanoparticles of Immiscible Pd and Ru Elements Neighboring on Rh: Changeover of the Thermodynamic Behavior for Hydrogen Storage and Enhanced CO-Oxidizing Ability
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- 巻
- 136
- 号
- 5
- 開始ページ
- 1864
- 終了ページ
- 1871
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/ja409464g
- 出版者・発行元
- AMER CHEMICAL SOC
PdxRu1-x solid solution alloy nanoparticles were successfully synthesized over the whole composition range through a chemical reduction method, although Ru and Pd are immiscible at the atomic level in the bulk state. From the XRD measurement, it was found that the dominant structure of PdxRu1-x changes from fcc to hcp with increasing Ru content. The structures of PdxRu1-x nanoparticles in the Pd composition range of 30-70% consisted of both solid solution fcc and hcp structures, and both phases coexist in a single particle. In addition, the reaction of hydrogen with the PdxRu1-x nanoparticles changed from exothermic to endothermic as the Ru content increased. Furthermore, the prepared PdxRu1-x nanoparticles demonstrated enhanced CO-oxidizing catalytic activity; Pd0.5Ru0.5 nanoparticles exhibit the highest catalytic activity. This activity is much higher than that of the practically used CO-oxidizing catalyst Ru and that of the neighboring Rh, between Ru and Pd.
- リンク情報
-
- DOI
- https://doi.org/10.1021/ja409464g
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/24455969
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000331493700036&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-84893754369&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0002-3998-7012
- ID情報
-
- DOI : 10.1021/ja409464g
- ISSN : 0002-7863
- eISSN : 1520-5126
- ORCIDのPut Code : 26762311
- PubMed ID : 24455969
- SCOPUS ID : 84893754369
- Web of Science ID : WOS:000331493700036