Iron-gelatin aerogel derivative as high-performance oxygen reduction reaction electrocatalysts in microbial fuel cells

被引：7
作者：
Wang, Huiqiang [1 ,2 ]
Wei, Liling [1 ]
Shen, Jianquan [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci BNLMS, Key Lab Green Printing, Zhongguancun North First St 2, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 41期
基金：
中国国家自然科学基金;
关键词：
Gelatin; Aerogels; Fe; Oxygen reduction reaction; Microbial fuel cells; WASTE-WATER TREATMENT; ACTIVATED CARBON; FREE CATALYSTS; FE; EFFICIENT; CATHODE; NANOTUBES; BIOMASS; ENERGY; POWER;
D O I：
10.1016/j.ijhydene.2022.03.276
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：
Currently, precious based materials are known as highly efficient and widely used catalysts for oxygen reduction reaction (ORR). The expensive price and scarce resource of precious metals have stimulated researchers to explore low-cost and high-performance non-precious metal catalysts. Gelatin is a promising precursor to prepare cost-effective and high-performance catalysts because of abundant micropores and nitrogen self-doping sites after pyrolysis. Herein, we developed a new highly active ORR catalyst (G/C-Fe-2) containing Fe-N coordination sites and Fe/Fe3C nanoparticles. G/C-Fe-2 exhibited excellent ORR electrocatalytic activity (onset potential: 0.21 V, and limiting current density:7.36 mA cm(-2)) and high-performance in air-cathode MFCs (Output voltage: 660 mV, and maximum power density: 560 mW m(-2)). It is significant for synthesizing low-cost and high-activity ORR electrocatalysts through this strategy. (C) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：17982 / 17991
页数：10
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