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Effects of brush lengths and fiber loadings on the performance of microbial fuel cells using graphite fiber brush anodes

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2013.03.144 Byline: Chunmei Liu, Jun Li, Xun Zhu, Liang Zhang, Dingding Ye, Robert Keith Brown, Qiang Liao Abstract: An alternative method for fabricating graphite fiber brush (GFB) electrodes was pro... Full description

Journal Title: International Journal of Hydrogen Energy Nov 22, 2013, Vol.38(35), p.15646(7)
Main Author: Liu, Chunmei
Other Authors: Li, Jun , Zhu, Xun , Zhang, Liang , Ye, Dingding , Brown, Robert Keith , Liao, Qiang
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0360-3199
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recordid: gale_ofa349135821
title: Effects of brush lengths and fiber loadings on the performance of microbial fuel cells using graphite fiber brush anodes
format: Article
creator:
  • Liu, Chunmei
  • Li, Jun
  • Zhu, Xun
  • Zhang, Liang
  • Ye, Dingding
  • Brown, Robert Keith
  • Liao, Qiang
subjects:
  • Graphite -- Shipments Data
  • Fuel Cells -- Shipments Data
  • Fibers
  • Fuel Cell Industry
  • Electrochemical Reactions
ispartof: International Journal of Hydrogen Energy, Nov 22, 2013, Vol.38(35), p.15646(7)
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2013.03.144 Byline: Chunmei Liu, Jun Li, Xun Zhu, Liang Zhang, Dingding Ye, Robert Keith Brown, Qiang Liao Abstract: An alternative method for fabricating graphite fiber brush (GFB) electrodes was proposed. Two series of GFB electrodes with different lengths (L) and loaded fiber masses (m) were fabricated. The effects of m/L on the biomass distribution, active biomass content, electrochemical behavior and MFC performance were investigated. For the electrodes with a similar m but different L, substrate supply within the interior of GFB electrodes improved with L, leading to higher biomass content and consequently the improved performance. However, a complex trend was found for the electrodes with different m and similar L, due to the opposing trends of substrate supply and actual functional area for electrochemically active bacteria with m. Furthermore, m-normalized biomass content and power density of the GFB electrodes increased with decreasing of m/L ratio due to the improved graphite fiber utilization until 0.014 g mm.sup.-1, below which they remained constant since the utilization of graphite fibers plateaued. Author Affiliation: (a) Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400030, China (b) Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China (c) Institute of Environmental and Sustainable Chemistry, Technische Universitat Braunschweig, Hagenring 30, 38106 Braunschweig, Germany Article History: Received 11 January 2013; Revised 26 March 2013; Accepted 27 March 2013
language: English
source:
identifier: ISSN: 0360-3199
fulltext: no_fulltext
issn:
  • 0360-3199
  • 03603199
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titleEffects of brush lengths and fiber loadings on the performance of microbial fuel cells using graphite fiber brush anodes
creatorLiu, Chunmei ; Li, Jun ; Zhu, Xun ; Zhang, Liang ; Ye, Dingding ; Brown, Robert Keith ; Liao, Qiang
ispartofInternational Journal of Hydrogen Energy, Nov 22, 2013, Vol.38(35), p.15646(7)
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descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2013.03.144 Byline: Chunmei Liu, Jun Li, Xun Zhu, Liang Zhang, Dingding Ye, Robert Keith Brown, Qiang Liao Abstract: An alternative method for fabricating graphite fiber brush (GFB) electrodes was proposed. Two series of GFB electrodes with different lengths (L) and loaded fiber masses (m) were fabricated. The effects of m/L on the biomass distribution, active biomass content, electrochemical behavior and MFC performance were investigated. For the electrodes with a similar m but different L, substrate supply within the interior of GFB electrodes improved with L, leading to higher biomass content and consequently the improved performance. However, a complex trend was found for the electrodes with different m and similar L, due to the opposing trends of substrate supply and actual functional area for electrochemically active bacteria with m. Furthermore, m-normalized biomass content and power density of the GFB electrodes increased with decreasing of m/L ratio due to the improved graphite fiber utilization until 0.014 g mm.sup.-1, below which they remained constant since the utilization of graphite fibers plateaued. Author Affiliation: (a) Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400030, China (b) Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China (c) Institute of Environmental and Sustainable Chemistry, Technische Universitat Braunschweig, Hagenring 30, 38106 Braunschweig, Germany Article History: Received 11 January 2013; Revised 26 March 2013; Accepted 27 March 2013
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titleEffects of brush lengths and fiber loadings on the performance of microbial fuel cells using graphite fiber brush anodes.
descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2013.03.144 Byline: Chunmei Liu, Jun Li, Xun Zhu, Liang Zhang, Dingding Ye, Robert Keith Brown, Qiang Liao Abstract: An alternative method for fabricating graphite fiber brush (GFB) electrodes was proposed. Two series of GFB electrodes with different lengths (L) and loaded fiber masses (m) were fabricated. The effects of m/L on the biomass distribution, active biomass content, electrochemical behavior and MFC performance were investigated. For the electrodes with a similar m but different L, substrate supply within the interior of GFB electrodes improved with L, leading to higher biomass content and consequently the improved performance. However, a complex trend was found for the electrodes with different m and similar L, due to the opposing trends of substrate supply and actual functional area for electrochemically active bacteria with m. Furthermore, m-normalized biomass content and power density of the GFB electrodes increased with decreasing of m/L ratio due to the improved graphite fiber utilization until 0.014 g mm.sup.-1, below which they remained constant since the utilization of graphite fibers plateaued. Author Affiliation: (a) Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400030, China (b) Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China (c) Institute of Environmental and Sustainable Chemistry, Technische Universitat Braunschweig, Hagenring 30, 38106 Braunschweig, Germany Article History: Received 11 January 2013; Revised 26 March 2013; Accepted 27 March 2013
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abstractTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ijhydene.2013.03.144 Byline: Chunmei Liu, Jun Li, Xun Zhu, Liang Zhang, Dingding Ye, Robert Keith Brown, Qiang Liao Abstract: An alternative method for fabricating graphite fiber brush (GFB) electrodes was proposed. Two series of GFB electrodes with different lengths (L) and loaded fiber masses (m) were fabricated. The effects of m/L on the biomass distribution, active biomass content, electrochemical behavior and MFC performance were investigated. For the electrodes with a similar m but different L, substrate supply within the interior of GFB electrodes improved with L, leading to higher biomass content and consequently the improved performance. However, a complex trend was found for the electrodes with different m and similar L, due to the opposing trends of substrate supply and actual functional area for electrochemically active bacteria with m. Furthermore, m-normalized biomass content and power density of the GFB electrodes increased with decreasing of m/L ratio due to the improved graphite fiber utilization until 0.014 g mm.sup.-1, below which they remained constant since the utilization of graphite fibers plateaued. Author Affiliation: (a) Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400030, China (b) Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China (c) Institute of Environmental and Sustainable Chemistry, Technische Universitat Braunschweig, Hagenring 30, 38106 Braunschweig, Germany Article History: Received 11 January 2013; Revised 26 March 2013; Accepted 27 March 2013
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