Improving the activity and stability of a Pt/C electrocatalyst for direct methanol fuel cells
Improving the activity and stability of a Pt/C electrocatalyst for direct methanol fuel cells
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提高直接甲醇燃料电池用 Pt/C 电催化剂的活性和稳定性
作者：
在硝酸钴和硝酸镍存在下，在900°C下处理作为电催化剂载体的科琴黑（KB），并通过X射线衍射、能量色散X射线光谱、透射电子显微镜和氮吸附测量来表征。与未处理的材料相比，处理的KB（T-KB）表现出更好的石墨化和更大的介孔体积。采用改进的多元醇法制备了以T-KB为载体的Pt电催化剂。循环伏安法和单电池测试表明，Pt/T-KB电催化剂具有比Pt/KB电催化剂更好的电化学活性和稳定性。
Ketjen Black (KB) as an electrocatalyst support was treated at 900°C in the presence of cobalt and nickel nitrates, and characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, transmission electron microscopy and nitrogen adsorption measurement. The treated KB (T-KB) exhibits better graphitization and a larger mesopore volume than the untreated material. A Pt electrocatalyst supported on T-KB was prepared by a modified polyol process. Cyclic voltammetry and single cell tests show that the Pt/T-KB electrocatalyst exhibits better electrochemical activity and stability than a Pt/KB electrocatalyst.
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影响因子：
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