新型可充锂-空气电池的纳米刺状α-MnO 2 /Pd空心微球催化剂（英文）
发布时间：2021-01-01 17:45
利用NaBH4溶液还原PdCl2的方法在具有纳米刺状表面的α-MnO2中空微球上沉积Pd,制备一种α-MnO2/Pd核壳型复合催化剂作为新一代可充锂-空气电池的催化剂。TEM、XRD和EDS等方法的分析结果表明,在催化剂中纳米Pd颗粒均匀地分布在刺状α-MnO2中空微球表面,Pd在催化剂中的质量分数约为8.88%。充放电测试结果表明,与纳米刺状的α-MnO2中空微球催化剂相比,α-MnO2/Pd复合催化剂提高了空气电极的能量转化效率和充放电循环性能。由Super P碳材料和所制备的α-MnO2/Pd复合催化剂所构成的空气电极在0.1mA/cm2电流密度下的首次放电比容量可以达1220 mA·h/g,经13次充放电循环后的容量保持率为47.3%。该纳米刺状α-MnO2/Pd核壳型复合催化剂是一种有前途的空气电池催化剂。
【文章来源】：Transactions of Nonferrous Metals Society of China. 2014年01期
【文章页数】：7 页
【文章目录】：
1 Introduction
2 Experimental
2.1 Preparation of hollow α-Mn O2microspheres
2.2 Preparation of hollow α-Mn O2/Pd core-shell microspheres
2.3 Characterization of hollow microsphere catalysts
2.4 Preparation of air electrode including hollow microsphere catalysts
2.5 Electrochemical measurements of air electrode containing hollow microsphere catalysts
3 Results and discussion
4 Conclusions
本文编号：2951722
【文章来源】：Transactions of Nonferrous Metals Society of China. 2014年01期
【文章页数】：7 页
【文章目录】：
1 Introduction
2 Experimental
2.1 Preparation of hollow α-Mn O2microspheres
2.2 Preparation of hollow α-Mn O2/Pd core-shell microspheres
2.3 Characterization of hollow microsphere catalysts
2.4 Preparation of air electrode including hollow microsphere catalysts
2.5 Electrochemical measurements of air electrode containing hollow microsphere catalysts
3 Results and discussion
4 Conclusions
本文编号：2951722
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