Opening size optimization of metal matrix in rolling-pressed activated carbon air-cathode for microbial fuel cells
Opening size optimization of metal matrix in rolling-pressed activated carbon air-cathode for microbial fuel cells
复制标题
微生物燃料电池压延活性炭空气阴极金属基体开孔尺寸优化
DOI：
10.1016/j.apenergy.2014.02.048
复制
发表时间：
2014-06-15
期刊：
影响因子：
11.2
通讯作者：
Zhou, Qixing
中科院分区：
文献类型：
--
作者：
Li, Xiaojing;Wang, Xin;Zhou, Qixing
研究了具有四种开口尺寸（20-80 M）的不锈钢网（SSM）作为微生物燃料电池（MFC）中活性炭空气阴极的基质。使用40 M获得了最高功率密度2151+/-109 mW m(-2)(5.54+/-0.14 A m(-2))，比80 M的1485+/-18 mW m(-2)高45%。线性扫描伏安法的趋势与阴极电位范围从-0.2到0的功率输出一致。五、业绩差异归因于内部因素 阻力。电荷转移电阻（R-ct）是大多数空气阴极中的主要内阻，在 40 M 中最低值为 2 52。与开口尺寸（R-2 = 0.7068）相比，金属网的密度与最大功率密度（R-2 = 0.9222）表现出更显着的相关性，这表明金属集流体的密度对阴极的性能至关重要。 (C) 2014 Elsevier Ltd. 保留所有权利。
Stainless steel mesh (SSM) with four opening sizes (20-80 M) were investigated as matrixes of activated carbon air-cathodes in microbial fuel cells (MFCs). The highest power density of 2151 +/- 109 mW m(-2) (at 5.54 +/- 0.14 A m(-2)) was obtained using 40 M, with a value 45% higher than 1485 +/- 18 mW m(-2) of 80 M. The trend of linear sweep voltammetries were in accordant with power output over a cathodic potential range from -0.2 to 0 V. The differences in performance were attributed to the internal resistances. Charge transfer resistance (R-ct) was the dominant internal resistance in most of air-cathodes, with the lowest value of 2 52 in 40 M. Density of metal mesh exhibited a more significant correlationship with maximum power densities (R-2 = 0.9222) compared to opening size (R-2 = 0.7068), demonstrated that the density of metal current collector was vital to the performance of cathodes. (C) 2014 Elsevier Ltd. All rights reserved.