期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms10035
关键词
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资金
- National Natural Science Foundation of China [51472173, 51222202, 51522208]
- Natural Science Foundation of Jiangsu Province [BK20140302, SBK2015010320]
- National '973' Program of China [2014CB932500]
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Canadian Funding agency CFI
- Canadian Funding agency NSERC
- Canadian Funding agency NRC
- Canadian Funding agency CIHR
- University of Saskatchewan
- Government of Saskatchewan
- Western Economic Diversification Canada
- Collaborative Innovation Center of Suzhou Nano Science and Technology
Active and durable electrocatalysts for methanol oxidation reaction are of critical importance to the commercial viability of direct methanol fuel cell technology. Unfortunately, current methanol oxidation electrocatalysts fall far short of expectations and suffer from rapid activity degradation. Here we report platinum-nickel hydroxide-graphene ternary hybrids as a possible solution to this long-standing issue. The incorporation of highly defective nickel hydroxide nanostructures is believed to play the decisive role in promoting the dissociative adsorption of water molecules and subsequent oxidative removal of carbonaceous poison on neighbouring platinum sites. As a result, the ternary hybrids exhibit exceptional activity and durability towards efficient methanol oxidation reaction. Under periodic reactivations, the hybrids can endure at least 500,000 s with negligible activity loss, which is, to the best of our knowledge, two to three orders of magnitude longer than all available electrocatalysts.
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