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OALib Journal期刊
ISSN: 2333-9721
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新型碳纤维负载直接乙醇燃料电池pt-sno2阳极催化剂的性能研究
, PP. 763-768
Keywords: 直接乙醇燃料电池,静电纺丝,碳纤维,pt-sno2,阳极催化剂
Abstract:
？采用静电纺丝技术制备了碳纤维基纳米pt-sno2阳极催化剂（pt/sn原子比为3）。通过x射线衍射（xrd）、红外光谱（ft-ir）、扫描电子显微镜（sem）等技术对该催化剂进行了表征，并采用循环伏安法对其在乙醇燃料电池中的阳极催化活性进行了评价。结果表明，纳米pt-sno2催化剂均匀地分散在碳纤维骨架上；随着烧结温度的升高，碳纤维载体的致密度越高、导电性能越好。电催化性能测试表明，烧结温度为800℃时催化剂的峰电流密度最大，达到0.11a/cm2，抗中毒能力也最强。单电池的发电性能表明，在一定的乙醇浓度下，1.0ml/min进样流速具有最优的发电效率。
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