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首页> 外文期刊>Advanced Science Letters >Acid Treatment of Carbon Supports for Proton Exchange Membrane Fuel Cell Electrocatalyst
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Acid Treatment of Carbon Supports for Proton Exchange Membrane Fuel Cell Electrocatalyst

机译：质子交换膜燃料电池电催化剂碳载体的酸处理

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摘要

Pt/carbon and Pt/activated carbon catalysts were prepared using a simple chemical reduction method with a view to application in proton exchange membrane (PEM) fuel cells. The catalysts were characterized by X-ray diffraction, energy dispersive X-ray (EDX) spectroscopy, transmission electron microscopy, and Brunauer-Emmett-Teller (BET) surface area measurements. The electrochemical performance of the Pt/carbon and Pt/activated carbon catalysts were evaluated by cyclic voltammetry, and linear scan voltammetry testing. Electrochemical measurements indicate that the Pt nanocatalysts exhibited enhanced electrochemically active surface areas and improved activity in the oxygen reduction reaction (ORR) on the activated carbon compared to the pristine carbon. It is suggested that acid activated carbon would provide better catalyst support than pristine carbon in proton exchange membrane fuel cells.
机译：为了应用在质子交换膜（PEM）燃料电池中，使用简单的化学还原方法制备了Pt /碳和Pt /活性炭催化剂。通过X射线衍射，能量色散X射线（EDX）光谱，透射电子显微镜和Brunauer-Emmett-Teller（BET）表面积测量来表征催化剂。通过循环伏安法和线性扫描伏安法测试评估了Pt /碳和Pt /活性炭催化剂的电化学性能。电化学测量表明，与原始碳相比，Pt纳米催化剂在活性炭上的氧还原反应（ORR）表现出增强的电化学活性表面积和更高的活性。提出在质子交换膜燃料电池中，酸活性炭将比原始碳提供更好的催化剂载体。

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