A novel non-noble electrocatalyst for PEM fuel cell based on molybdenum nitride
A novel non-noble electrocatalyst for PEM fuel cell based on molybdenum nitride
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DOI：
10.1016/j.elecom.2006.02.020
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发表时间：
2006-05
影响因子：
5.4
通讯作者：
H. Zhong;Huamin Zhang;Gang Liu;Yongmin Liang;Jingwei Hu;B. Yi
中科院分区：
文献类型：
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作者：
H. Zhong;Huamin Zhang;Gang Liu;Yongmin Liang;Jingwei Hu;B. Yi
研究了采用程序升温反应（TPR）法制备的碳载氮化钼（Mo2N/C）非贵金属电催化剂作为质子交换膜燃料电池（pemfc）氧还原反应（ORR）的阴极电催化剂。通过x射线衍射（XRD）对催化剂结构进行了表征。采用线性扫描伏安法（LSV）和旋转圆盘电极法（RDE）研究了催化剂在0.5M h2so4溶液中的电化学行为。氧在酸溶液中的还原是通过一个近似的四电子途径进行的。Mo2N/C催化剂在pemfc中氧还原反应（ORR）中表现出较好的电池性能，是一种很有前途的替代铂基催化剂的非贵金属电催化剂。
A novel non-noble electrocatalyst based on molybdenum nitride supported on carbon (Mo2N/C) prepared by temperature-programmed reaction (TPR) strategy was investigated as cathode electrocatalysts toward oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs). The catalyst structure was characterized via X-ray diffraction (XRD). The electrochemical behaviours of the catalyst were investigated by linear sweep voltammetry (LSV) and rotating disk electrode (RDE) measurements in 0.5M H2SO4solution. The reduction of oxygen in acid solution proceeds by an approximate four-electron pathway. The Mo2N/C catalyst showed a comparatively good cell performance to oxygen reduction reaction (ORR) in PEMFCs and has proved to be a promising non-noble electrocatalysts for the alternative of platinum-based catalysts.