微生物燃料电池
阳极
材料科学
纳米技术
纳米颗粒
氧化物
碳纤维
化学工程
电催化剂
电极
化学
电化学
冶金
复合材料
物理化学
工程类
复合数
作者
Maryam Habibi,Majid Arvand,Sh. Sohrabnezhad
出处
期刊:Energy
[Elsevier]
日期:2021-05-01
卷期号:223: 120103-120103
被引量:16
标识
DOI:10.1016/j.energy.2021.120103
摘要
Microbial fuel cells have recently received significant consideration from researchers worldwide as sustainable and futuristic energy due to their potential in converting energy from decomposition of natural organisms in waste to green electricity. Unfortunately, the difficulty of achieving high power due to poor extracellular electron transfer (EET) efficiency between microorganisms and the solid substrate, besides low bacterial loading capacity has limited their applications to date. Herein, iron/iron oxide ([email protected]2O3) nanoparticles incorporated with nitrogen-doped carbon quantum dots (NCQDs) are synthesized via using an effective and simple electrodeposition technique. [email protected]2O3/NCQDs anode provides not only a high effective surface area for the adhesion of microbe’s cells but also promotes favored electrical conductivity to facilitate EET from bacteria to the anode in the mixed culture-based MFCs. Considerably, at a steady-state of the electricity production, the MFC equipped with [email protected]2O3/NCQDs as activated anode delivers a maximum power density of 836 ± 8 mW/m2, which is 87% higher compared to instances when NCQDs (446 ± 11 mW/m2) is applied as anode electrocatalyst. This work opens a door toward an effective route to microbial anode electrode to produce sustainable green energy.
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