Quinary PdNiCoCuFe Alloy Nanotube Arrays as Efficient Electrocatalysts for Methanol Oxidation
Quinary PdNiCoCuFe Alloy Nanotube Arrays as Efficient Electrocatalysts for Methanol Oxidation
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DOI：
10.1016/j.electacta.2014.02.076
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发表时间：
2014-05
影响因子：
6.6
通讯作者：
An‐Liang Wang;Hao Wan;Han Xu;Y. Tong;Gao‐Ren Li
中科院分区：
文献类型：
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作者：
An‐Liang Wang;Hao Wan;Han Xu;Y. Tong;Gao‐Ren Li
多金属合金纳米管阵列由于合金、中空纳米管和阵列纳米结构的特殊性，具有上级电催化性能和催化剂的高效利用。本文首次采用模板辅助电沉积法制备了五元PdNiCoCuFe合金纳米管阵列。PdNiCoCuFe合金纳米管的内径、壁厚和长度分别为300 ~ 400 nm、150 nm和1.8μm。PdNiCoCuFe五元合金NTA由于其高比表面积、中空纳米管阵列以及多种元素的协同作用，对甲醇电氧化表现出上级催化活性和长期循环稳定性。综合考虑催化剂的组成和几何结构因素，为设计具有优异电活性和耐久性的新型催化剂提供了一种新的方法。
Multi-metallic alloy nanotube arrays are highly favorable for superior electrocatalytic performance and efficient utilization of catalyst because of the special characteristics of alloys, hollow nanotubes, and array nanostructures. Here we firstly prepared the quinary PdNiCoCuFe alloy nanotube arrays (NTAs) by template-assisted electrodeposition method. The inner diameters, wall thicknesses, and lengths of PdNiCoCuFe alloy nanotubes are 300∼400 nm, 150 nm, and 1.8μm, respectively. Because of the high specific surface area, hollow nanotube arrays, and synergistic effects of various elements, the quinary PdNiCoCuFe alloy NTAs as efficient electrocatalysts showed superior catalytic activity and long-term cycle stability for methanol electrooxidation. The combination of compositionally and geometrically favorable factors provides a new method to design the novel catalysts with excellent electroactivity and durability.