https://scholars.lib.ntu.edu.tw/handle/123456789/362235
Title: | An alternative cobalt oxide-supported platinum catalyst for efficient hydrolysis of sodium borohydride | Authors: | Hung, Tai-Feng Kuo, Heng-Chia Tsai, Chi-Wen Chen, Hao Ming Liu, Ru-Shi Weng, Bing-Jhih Lee, Jyh-Fu RU-SHI LIU HAO MING CHEN |
Issue Date: | 2011 | Journal Volume: | 21 | Journal Issue: | 32 | Start page/Pages: | 11754-11759 | Source: | Journal of Materials Chemistry | Abstract: | This study presents an alternative cobalt (ii, iii) oxide-supported platinum (Pt/Co3O4) catalyst for hydrogen generation in a sodium borohydride (NaBH4) system for the first time. The Pt/Co 3O4 exhibits approximately a 410% increase in the hydrogen generation rate compared with pristine Co3O4, indicating that the Pt/Co3O4 is an efficient catalyst to generate hydrogen for NaBH4 hydrolysis. Both the Co K-edge and the Pt L iii-edge results delivered from X-ray absorption near edge structure (XANES) analysis reveal that stable features, including the local structure and the electronic state, are observed after a fifth cycle, suggesting that the Pt/Co3O4 has a potential application in NaBH4 hydrolysis. The catalytic mechanism of the Pt/Co3O4 for NaBH4 hydrolysis is proposed based on the XANES results, which involves catalysis of the NaBH4 and simultaneous reduction of Pt and Co ions during hydrolysis. © The Royal Society of Chemistry 2011. |
URI: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000293504500012&KeyUID=WOS:000293504500012 http://scholars.lib.ntu.edu.tw/handle/123456789/362235 |
DOI: | 10.1039/c1jm11720c | SDG/Keyword: | Catalytic mechanisms; Co ions; Efficient catalysts; Hydrogen generations; Local structure; Platinum catalysts; Potential applications; Simultaneous reduction; Sodium borohydrides; X-ray absorption near-edge structure; XANES; Catalysts; Cobalt; Hydrogen; Hydrogen production; Platinum; Quantum chemistry; Hydrolysis |
Appears in Collections: | 化學系 |
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