강흥구 (전남대학교 광주캠퍼스) | 상위피인용논문 > 한빛사

상위피인용논문

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강흥구Heunggu Kang

전남대학교 광주캠퍼스

Int. J. Hydrog. Energy, Volume 42, Issue 45, 9 November 2017, Pages 27693-27700 | https://doi.org/10.1016/j.ijhydene.2017.06.181 Effects of brush-anode configurations on performance and electrochemistry of microbial fuel cells

Heunggu Kang ^{a d}, Jaesik Jeong ^b, Prabuddha L. Gupta^{c *}, Sokhee P. Jung ^{a *}

^aDepartment of Environment and Energy Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
^bDepartment of Statistics, Chonnam National University, Gwangju 61186, Republic of Korea
^cDepartment of Energy and Environment Convergence, Catholic Kwandong University, Gangneung 25601, Republic of Korea
^dGreen Energy Institute, Naju 58217, Republic of Korea

^*Corresponding authors: correspondence to Prabuddha L. Gupta or Sokhee P. Jung

Abstract

For practical implementation of MFC, increasing power generation is important because it is closely related with energy production rate and wastewater treatability. However, it is not known which relative arrangement of anode and cathode gives the best performance, and it is necessary to know electrochemical reference point of the brush anode for this. Five different brush-anode configurations were tested in a single-chambered cubic MFC. By merely changing a brush anode configuration, power and current densities were increased by 20% and 30%, respectively. The horizontally-positioned anode configuration (H1) with the closest anode-cathode distance produced the highest power and current. EIS showed that anode impedance and full-cell impedance were decreased by 60% and 49%, respectively. CE and EE were not significantly affected by the anode-cathode distance, but the horizontal type cells showed relatively higher CE, EE and COD removal rate and shorter batch time. The center of a titanium current collector and the center of carbon fibers of a brush-anode were found to be statistically-significant reference points for MFC electrochemistry.

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