杨瑞枝教授课题组在Advanced Functional Materials上发表论文

发布者:金霞发布时间:2017-12-01浏览次数:16

题目:NiCo Alloy Nanoparticles Decorated on N-Doped Carbon Nanofibers as Highly Active and Durable Oxygen Electrocatalyst

作者:Yue Fu, Hai-Yang Yu, Cong Jiang, Tian-Heng Zhang, Run Zhan, Xiaowei Li, Jian-Feng Li, Jing-Hua Tian,* and Ruizhi Yang*

摘要:The exploring of catalysts with high-efficiency and low-cost for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is one of the key issues for many renewable energy systems including fuel cells, metal–air batteries, and water splitting. Despite several decades pursuing, bifunctional oxygen catalysts with high catalytic performance at low-cost, especially the one that could be easily scaled up for mass production are still missing and highly desired. Herein, a hybrid catalyst with NiCo alloy nanoparticles decorated on N-doped carbon nanofibers is synthesized by a facile electrospinning method and post-calcination treatment. The hybrid catalyst NiCo@N-C 2 exhibits outstanding ORR and OER catalytic performances, which is even surprisingly superior to the commercial Pt/C and RuO2 catalysts, respectively. The synergetic effects between alloy nanoparticles and the N-doped carbon fiber are considered as the main contributions for the excellent catalytic activities, which include decreasing the intrinsic and charge transfer resistances, increasing C=C, graphitic-N/pyridinic-N contents in the hybrid catalyst. This work opens up a new way to fabricate high-efficient, low-cost oxygen catalysts with high production.

影响因子:12.124

原文链接:http://onlinelibrary.wiley.com/doi/10.1002/adfm.201705094/abstract