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OALib Journal期刊
ISSN: 2333-9721
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炭载pd-p催化剂对甲酸氧化的电催化性能
, PP. 1367-1370
Keywords: 直接甲酸燃料电池,pd-p/c催化剂,甲酸氧化,电催化性能
Abstract:
？用黄磷作原料,制备了具有不同pd-p原子比的碳载pd-p(pd-p/c)催化剂,并且使用x射线衍射(xrd)和能量色散x射线光谱仪(edx)等手段对制备的催化剂进行了表征,总结了p含量对pd-p合金纳米粒子的粒径和晶体结构的影响。电化学测试结果表明,甲酸在pd/c、pd1p6/c和pd1p8/c催化剂上,氧化峰峰电位由低到高依次为pd1p6/c﹤pd1p8/c﹤pd/c,电化学稳定性顺序为pd1p6/c>pd1p8/c>pd/c,pd1p6/c催化剂对甲酸氧化的催化性能最佳,适量的p掺杂能够增强pd/c催化剂对甲酸氧化的电催化活性和稳定性,因此,pd-p/c催化剂是一类具有应用前景的直接甲酸燃料电池(dfafc)阳极催化剂。
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