Flowable Nickel-Loaded Activated Carbon Cathodes for Hydrogen Production in Microbial Electrolysis Cells
DC Field | Value | Language |
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dc.contributor.author | Moreno-Jimenez, Daniel A. | - |
dc.contributor.author | Kumaran, Yamini | - |
dc.contributor.author | Efstathiadis, Harry | - |
dc.contributor.author | Hwang, Moon-Hyun | - |
dc.contributor.author | Jeon, Byong-Hun | - |
dc.contributor.author | Kim, Kyoung-Yeol | - |
dc.date.accessioned | 2023-11-24T04:51:02Z | - |
dc.date.available | 2023-11-24T04:51:02Z | - |
dc.date.created | 2023-08-29 | - |
dc.date.issued | 2023-10 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/192955 | - |
dc.description.abstract | Microbial electrolysis cells (MECs) can electrochemically produce green hydrogen from waste streams. However, cathode materials have been a bottleneck for the practical application of MECs due to difficulties in scale-up and high costs. To overcome current drawbacks, we have examined a novel flowable cathode in MECs, where nickel-loaded activated carbon (Ni/AC) powders were suspended in a buffering solution as a cathode without electrode fabrication processes. The Ni/AC flow cathode with higher Ni content and minimum Ni/AC loading (4 Ni-atom% and 0.125 wt-AC.%, Ni4/AC0.125) demonstrated the highest catalytic activities (−0.86 V vs Ag/AgCl at −10 A/m2) among Ni/AC flow cathodes tested. This result indicates that pseudocapacitive behavior toward Faradaic reactions can be promoted by increasing Ni loadings on Ni/AC particles. The MEC with a Ni4/AC0.125 flow cathode produced comparable hydrogen production rates (1.62 ± 0.15 L-H2/Lreactor-day) to the Pt control (1.64 ± 0.09 L-H2/L-day) and 40% higher than the blank (only current collector without Ni/AC, 1.29 ± 0.02 L-H2/L-day) at a 4 h cycle. The impacts of carbon black blending remain unclear; there was a 10% increase in hydrogen production rates with the lowest carbon black content (0.06 wt %) in the Ni/AC flow cathode, but hydrogen production rates were not further improved as carbon black content increased. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Flowable Nickel-Loaded Activated Carbon Cathodes for Hydrogen Production in Microbial Electrolysis Cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jeon, Byong-Hun | - |
dc.identifier.doi | 10.1021/acsestengg.3c00122 | - |
dc.identifier.scopusid | 2-s2.0-85167922841 | - |
dc.identifier.wosid | 001035686500001 | - |
dc.identifier.bibliographicCitation | ACS ES&T ENGINEERING, v.3, no.10, pp.1476 - 1485 | - |
dc.relation.isPartOf | ACS ES&T ENGINEERING | - |
dc.citation.title | ACS ES&T ENGINEERING | - |
dc.citation.volume | 3 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1476 | - |
dc.citation.endPage | 1485 | - |
dc.type.rims | ART | - |
dc.type.docType | Article in press | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.subject.keywordPlus | CAPACITIVE DEIONIZATION | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.subject.keywordPlus | SUSPENSION ELECTRODES | - |
dc.subject.keywordPlus | SLURRY ELECTRODES | - |
dc.subject.keywordPlus | DESALINATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordPlus | CATHOLYTE | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | NITROGEN | - |
dc.subject.keywordAuthor | Activated carbon flow electrode | - |
dc.subject.keywordAuthor | Waste to energy | - |
dc.subject.keywordAuthor | Nonprecious metal catalysts | - |
dc.subject.keywordAuthor | Hydrogen evolution reaction | - |
dc.subject.keywordAuthor | Green hydrogen production | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsestengg.3c00122 | - |
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