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Hexapod PtRuCu Nanocrystalline Alloy for Highly Efficient and Stable Methanol Oxidation
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-07-09 00:00:00 , DOI: 10.1021/acscatal.8b00366 Shengfeng Xue 1 , Wentao Deng 2 , Fang Yang 1 , Jinlong Yang 1 , Ibrahim Saana Amiinu 1 , Daping He 1, 3 , Haolin Tang 1 , Shichun Mu 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-07-09 00:00:00 , DOI: 10.1021/acscatal.8b00366 Shengfeng Xue 1 , Wentao Deng 2 , Fang Yang 1 , Jinlong Yang 1 , Ibrahim Saana Amiinu 1 , Daping He 1, 3 , Haolin Tang 1 , Shichun Mu 1
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A hexapod PtRuCu nanocrystalline alloy material is successfully fabricated by a facile approach based on Stranski–Krastanov growth and galvanic replacement and used as an efficient catalyst for direct methanol fuel cells (DFMCs). Because of the synergetic effect of metallic elements in the methanol oxidation, the activity and durability of the prepared PtRuCu/C catalyst is significantly enhanced. It has a mass activity of 1.35 A mgPt–1 and a specific activity of 3.92 mA cm–2, which are 3.8 and 8.2 times higher than those of Pt/C, respectively. Its mass activity only decreases 27% after 800 CV cycles compared with Pt/C (60% decline), indicating the admirable stability of the PtRuCu catalyst.
中文翻译：
用于高效稳定氧化甲醇的六足形PtRuCu纳米晶合金
六足PtRuCu纳米晶合金材料是通过基于Stranski-Krastanov生长和电流置换的简便方法成功制造的，并被用作直接甲醇燃料电池（DFMC）的有效催化剂。由于金属元素在甲醇氧化中的协同作用，因此大大提高了所制备的PtRuCu / C催化剂的活性和耐久性。它的质量活度为1.35 A mg Pt –1，比活度为3.92 mA cm –2，分别是Pt / C的3.8和8.2倍。在800 CV循环后，其质量活性仅比Pt / C降低27％（下降60％），表明PtRuCu催化剂具有令人称赞的稳定性。
更新日期：2018-07-09
中文翻译：
用于高效稳定氧化甲醇的六足形PtRuCu纳米晶合金
六足PtRuCu纳米晶合金材料是通过基于Stranski-Krastanov生长和电流置换的简便方法成功制造的，并被用作直接甲醇燃料电池（DFMC）的有效催化剂。由于金属元素在甲醇氧化中的协同作用，因此大大提高了所制备的PtRuCu / C催化剂的活性和耐久性。它的质量活度为1.35 A mg Pt –1，比活度为3.92 mA cm –2，分别是Pt / C的3.8和8.2倍。在800 CV循环后，其质量活性仅比Pt / C降低27％（下降60％），表明PtRuCu催化剂具有令人称赞的稳定性。
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