Hydrogen production from macroalgae by simultaneous dark fermentation and microbial electrolysis cell with surface-modified stainless steel mesh cathode
- Authors
- Yun, Woo Hyun; Yoon, Young Soo; Yoon, Hyon Hee; Nguyen, P.K.T.; Hur, Jaehyun
- Issue Date
- Nov-2021
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Anodization; Hydrogen; Macroalgae; Microbial electrolysis cell; Stainless steel mesh
- Citation
- International Journal of Hydrogen Energy, v.46, no.79, pp.39136 - 39145
- Journal Title
- International Journal of Hydrogen Energy
- Volume
- 46
- Number
- 79
- Start Page
- 39136
- End Page
- 39145
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82720
- DOI
- 10.1016/j.ijhydene.2021.09.168
- ISSN
- 0360-3199
- Abstract
- An affordable cathode material for microbial electrolysis cells (MECs) was synthesized via surface-modification of stainless steel mesh (SSM) by anodization. The anodization parameters, such as wire mesh size, temperature, applied voltage, operating time, were optimized. The surface-modified SSM (smSSM) exhibited porous surface and higher specific surface area. The as synthesized smSSMs were utilized as freestanding cathodes in a conventional microbial electrolysis cell (MEC) and a simultaneous dark fermentation and MEC process (sDFMEC). The H2 production in MEC and sDFMEC with smSSM as cathode was approximately 150% higher than that with SSM. The performance of smSSM was 67–75% of that of Pt/C. The sDFMEC with smSSM as cathode was stable for 12 cycles of fed-batch operation in 60 days. Overall, energy conversion from S. japonica by sDFMEC was as high as 23.4%. © 2021 Hydrogen Energy Publications LLC
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