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Highly active and durable methanol oxidation electrocatalyst based on the synergy of platinum-nickel hydroxide-graphene.
Nature Communications ( IF 14.7 ) Pub Date : 2015-Nov-25 , DOI: 10.1038/ncomms10035 Wenjing Huang 1 , Hongtao Wang 2 , Jigang Zhou 3 , Jian Wang 3 , Paul N Duchesne 4 , David Muir 3 , Peng Zhang 4 , Na Han 1 , Feipeng Zhao 1 , Min Zeng 1 , Jun Zhong 1 , Chuanhong Jin 2 , Yanguang Li 1 , Shuit-Tong Lee 1 , Hongjie Dai 5
Nature Communications ( IF 14.7 ) Pub Date : 2015-Nov-25 , DOI: 10.1038/ncomms10035 Wenjing Huang 1 , Hongtao Wang 2 , Jigang Zhou 3 , Jian Wang 3 , Paul N Duchesne 4 , David Muir 3 , Peng Zhang 4 , Na Han 1 , Feipeng Zhao 1 , Min Zeng 1 , Jun Zhong 1 , Chuanhong Jin 2 , Yanguang Li 1 , Shuit-Tong Lee 1 , Hongjie Dai 5
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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.
中文翻译：
基于铂-氢氧化镍-石墨烯协同作用的高活性耐用甲醇氧化电催化剂。
用于甲醇氧化反应的活性和耐用电催化剂对于直接甲醇燃料电池技术的商业可行性至关重要。不幸的是，目前的甲醇氧化电催化剂远未达到预期，并且活性迅速下降。在这里，我们报告了铂-氢氧化镍-石墨烯三元杂化物作为解决这一长期存在的问题的可能方法。据信，高度缺陷的氢氧化镍纳米结构的掺入在促进水分子的解离吸附和随后氧化去除邻近铂位点上的含碳毒物方面起着决定性作用。因此，三元杂化物对有效的甲醇氧化反应表现出非凡的活性和耐久性。在定期重新激活下，
更新日期：2015-11-28
中文翻译：
基于铂-氢氧化镍-石墨烯协同作用的高活性耐用甲醇氧化电催化剂。
用于甲醇氧化反应的活性和耐用电催化剂对于直接甲醇燃料电池技术的商业可行性至关重要。不幸的是，目前的甲醇氧化电催化剂远未达到预期，并且活性迅速下降。在这里，我们报告了铂-氢氧化镍-石墨烯三元杂化物作为解决这一长期存在的问题的可能方法。据信，高度缺陷的氢氧化镍纳米结构的掺入在促进水分子的解离吸附和随后氧化去除邻近铂位点上的含碳毒物方面起着决定性作用。因此，三元杂化物对有效的甲醇氧化反应表现出非凡的活性和耐久性。在定期重新激活下，
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