Highly active electrocatalyst for rechargeable Zn-air battery: 3D Fe/N-based honeycomb-like carbon

被引：13
作者：
Han, Sancan [1 ]
Ding, Yuanpeng [1 ]
Qian, Qingren [1 ]
Ruan, Lingyang [1 ]
Wang, Xiaohan [1 ]
Zhu, Yufang [2 ,3 ]
Zhu, Min [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, 516 Jungong Rd, Shanghai 200093, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
VACUUM | 2021年 / 188卷
基金：
中国国家自然科学基金;
关键词：
3D interconnected Fe-NPC catalysts; Oxygen reaction reduction; Oxygen evolution reaction; Rechargeable metal-air batteries; OXYGEN REDUCTION REACTION; BIFUNCTIONAL ELECTROCATALYST; METAL-CATALYSTS; EVOLUTION; NANOPARTICLES; ENERGY; OER;
D O I：
10.1016/j.vacuum.2021.110201
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Remarkable bifunctional electrocatalysts for oxygen reaction reduction (ORR) and oxygen evolution reaction (OER) are the key for rechargeable metal-air batteries. In this work, a novel 3D Fe/N-based honeycomb-like carbon with uniformly-distributed active centers were synthesized by agarose and FeCl3 as the precursor, which display excellent ORR performance with large diffusion-limited current density (?7.5 mA cm-2) and Tafel slope (?88 mV/dev), significantly superior to the commercial Pt/C electrode. In addition, Fe-NPC-1000 as cathode catalyst in Zn-air battery owns higher power density and charge-discharge stability in comparison with commercial Pt/C catalyst, which shows excellent potential in the realistic application of energy devices.
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页数：9
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