Highly Efficient Oxygen Reduction Reaction Activity of N-Doped Carbon-Cobalt Boride Heterointerfaces

被引：251

作者：

Jose, Vishal ^{[1
,4
]}

Nsanzimana, Jean Marie Vianney ^{[4
]}

Hu, Huimin ^{[2
,3
]}

Choi, Jinho ^{[2
,3
]}

Wang, Xin ^{[4
]}

Lee, Jong-Min ^{[4
]}

机构：

[1] Nanyang Technol Univ, Energy Res Inst, ERI N, Interdisciplinary Grad Sch, 50 Nanyang Dr, Singapore 637553, Singapore

[2] Soochow Univ, Soochow Inst Energy & Mat Innovat, Coll Energy, Suzhou 215006, Peoples R China

[3] Soochow Univ, Key Lab Adv Carbon Mat & Wearable Energy Technol, Suzhou 215006, Peoples R China

[4] Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore

来源：

ADVANCED ENERGY MATERIALS | 2021年 / 11卷 / 17期

关键词：

cobalt boride; heterointerfaces; oxygen reduction reaction; zinc– air batteries; ELECTROCATALYSTS; NANOSHEETS; DESIGN; HETEROSTRUCTURES; EVOLUTION; RICH;

D O I：

10.1002/aenm.202100157

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Compositional and structural engineering of metal-metalloid materials can boost their electrocatalytic performance. Herein, a highly efficient and stable electrocatalytic system for the oxygen reduction reaction is obtained by creating heterointerfaces between N-doped carbon and cobalt boride nanosheets. Furthermore, a detailed investigation on the effect of annealing temperature as well as the amount of carbon and nitrogen sources is conducted to tune their performance. The best electrocatalyst among the prepared materials is found to have an onset potential of 1.05 V and half-wave potential of 0.94 V, which are 40 and 72 mV positive in comparison to commercial Pt/C, respectively. Finally, a zinc-air battery is also assembled using the catalyst.

引用

页数：9

共 52 条

[1] "Wiring" Fe-Nx-Embedded Porous Carbon Framework onto 1D Nanotubes for Efficient Oxygen Reduction Reaction in Alkaline and Acidic Media [J].