阳极
石墨烯
微生物燃料电池
材料科学
催化作用
碳化钨
化学工程
氧化物
法拉第效率
钨
功率密度
碳化物
纳米技术
冶金
化学
有机化学
电极
量子力学
物理
工程类
物理化学
功率(物理)
作者
Hend Omar Mohamed,Sawsan Abo Talas,Enas Taha Sayed,Sung Gwan Park,Tasnim Eisa,Mohammad Ali Abdelkareem,Olfat A. Fadali,Kyu‐Jung Chae,Pedro Castaño
出处
期刊:Energy
[Elsevier]
日期:2021-08-01
卷期号:229: 120702-120702
被引量:36
标识
DOI:10.1016/j.energy.2021.120702
摘要
Tungsten carbide (WC) and tungsten carbide on reduced graphene oxide (WC + rGO) nanolayers show outstanding performance as anode catalysts in microbial fuel cells for the simultaneous generation of power and treatment of wastewater. In this work, we synthesized these catalysts using simple and cost-effective urea glass route and reduction-carburization techniques. The pristine carbon felt (CF), WC/CF, and WC + rGO/CF anodes were characterized using several techniques and tested in a practical microbial fuel cell using industrial wastewater. We found that the unique features of WC/CF and WC + rGO/CF anodes, i.e., the surface area, biocompatibility, structure morphology, and catalytic activity, resulted in significant performance improvements. In particular, WC + rGO/CF exhibited a 4.4-, 7.6-, and 2.1-fold power density, current density, and coulombic efficiency, respectively, relative to the benchmark CF anode. This study confirms the potential use of WC + rGO/CF as a viable anode catalyst in microbial fuel cells on a larger scale.
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