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Article: Reverse Electrodialysis Chemical Cell for Energy Harvesting from Controlled Acid–Base Neutralization

TitleReverse Electrodialysis Chemical Cell for Energy Harvesting from Controlled Acid–Base Neutralization
Authors
KeywordsCells
Electrodialysis
Energy harvesting
Leachate treatment
Open circuit voltage
Issue Date2019
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag
Citation
Environmental Science & Technology, 2019, v. 53 n. 8, p. 4640-4647 How to Cite?
AbstractWe report a novel reverse electrodialysis (RED) chemical cell that integrates RED with acid/base neutralization. This RED neutralization process (REDn) approximately doubled the power density compared to a conventional RED stack (REDc), thanks to the additional salinity gradients established by H+ and OH– ions as a result of the neutralization reaction. Detailed analysis shows that the power performance, i.e., the open circuit voltage and power density, of the REDn cell was greatly limited by concentration polarization and uphill transport of ions. Addressing these issues could potentially lead to an order of magnitude improvement in power density as predicted by the Nernst equation. The current study provides a simple strategy for effectively extracting energy from the neutralization of waste acid and base solutions. Future studies shall further explore the treatment of acid mine drainage and landfill leachate with the RED chemical cell as well as its extension to a wider range of reactions.
Persistent Identifierhttp://hdl.handle.net/10722/272858
ISSN
2023 Impact Factor: 10.8
2023 SCImago Journal Rankings: 3.516
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMei, Y-
dc.contributor.authorLiu, L-
dc.contributor.authorLu, YC-
dc.contributor.authorTang, CY-
dc.date.accessioned2019-08-06T09:17:54Z-
dc.date.available2019-08-06T09:17:54Z-
dc.date.issued2019-
dc.identifier.citationEnvironmental Science & Technology, 2019, v. 53 n. 8, p. 4640-4647-
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10722/272858-
dc.description.abstractWe report a novel reverse electrodialysis (RED) chemical cell that integrates RED with acid/base neutralization. This RED neutralization process (REDn) approximately doubled the power density compared to a conventional RED stack (REDc), thanks to the additional salinity gradients established by H+ and OH– ions as a result of the neutralization reaction. Detailed analysis shows that the power performance, i.e., the open circuit voltage and power density, of the REDn cell was greatly limited by concentration polarization and uphill transport of ions. Addressing these issues could potentially lead to an order of magnitude improvement in power density as predicted by the Nernst equation. The current study provides a simple strategy for effectively extracting energy from the neutralization of waste acid and base solutions. Future studies shall further explore the treatment of acid mine drainage and landfill leachate with the RED chemical cell as well as its extension to a wider range of reactions.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag-
dc.relation.ispartofEnvironmental Science & Technology-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental Science & Technology, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.est.8b06361-
dc.subjectCells-
dc.subjectElectrodialysis-
dc.subjectEnergy harvesting-
dc.subjectLeachate treatment-
dc.subjectOpen circuit voltage-
dc.titleReverse Electrodialysis Chemical Cell for Energy Harvesting from Controlled Acid–Base Neutralization-
dc.typeArticle-
dc.identifier.emailTang, CY: tangc@hku.hk-
dc.identifier.authorityTang, CY=rp01765-
dc.description.naturepostprint-
dc.identifier.doi10.1021/acs.est.8b06361-
dc.identifier.pmid30916548-
dc.identifier.scopuseid_2-s2.0-85064351443-
dc.identifier.hkuros299800-
dc.identifier.volume53-
dc.identifier.issue8-
dc.identifier.spage4640-
dc.identifier.epage4647-
dc.identifier.isiWOS:000465190300064-
dc.publisher.placeUnited States-
dc.identifier.issnl0013-936X-

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