| 论文标题 |
S, N co-doped carbon nanotube encased Co NPs as efficient bifunctional oxygen electrocatalysts for zinc-air batteries |
| 作者 |
Peng Rao, Yalin Liu, Ya-Qiong Su, Mingjun Zhong, Kun Zhang, Junming Luo, Jing Li, Chunman Jia, Yijun Shen, Chong Shen, Xinlong Tian |
| 发表/完成日期 |
2021-10-15 |
| 期刊名称 |
Chemical Engineering Journal |
| 期卷 |
422 |
| 相关文章 |
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| 论文简介 |
For the practical application of metal-air batteries, developing high-active and low-cost bifunctional oxygen reduction reaction (ORR) and oxygen evolution reduction (OER) catalysts is crucial and challenging. This study designed a unique ordered three-dimensional (3D) core–shell nanostructure bifunctional ORR and OER electrocatalysts consisting of Co nanoparticles (NPs) embedded in S, N co-doped carbon nanotubes (S,N-Co@CNT). The prepared S,N-Co@CNT exhibited excellent bifunctional electrocatalytic performance, with a high half-wave potential of 0.874 V versus reversible hydrogen electrode (RHE) toward ORR, and a low overpotential of 276 mV at 10 mA·cm−2 for the OER. The unique core–shell nanostructure has delivered considerable durability and stability in the S,N-Co@CNT, demonstrating almost no change in the potential gap between the ORR and OER after more than 5000 cycles of the … |
(创新港)
