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dc.contributor.authorHenares, Terence G.
dc.contributor.authorGale, Julian
dc.contributor.authorHerzog, G.
dc.contributor.authorArrigan, Damien
dc.date.accessioned2023-01-10T06:15:45Z
dc.date.available2023-01-10T06:15:45Z
dc.date.issued2022
dc.identifier.citationHenares, T.G. and Gale, J.D. and Herzog, G. and Arrigan, D.W.M. 2022. Monitoring the Dissolution and Hydrolysis of Pyrosulfate by Electrochemistry at a Liquid-Liquid Microinterface Array. ChemElectroChem. 9 (23): e202200681.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/89999
dc.identifier.doi10.1002/celc.202200681
dc.description.abstract

Dissolution and hydrolysis processes are important in a variety of settings, including industrial and environmental applications. In this work, the hydrolysis of pyrosulfate (disulfate) was investigated by ion-transfer electrochemistry at an array of microinterfaces between two immiscible electrolyte solutions (μITIES). Current associated with pyrosulfate transfer was observed, but it decreased with time. This is due to the hydrolysis of pyrosulfate to hydrogen sulfate and sulfate. Corroborating data for the hydrolysis was obtained from pH measurements (acidification of the aqueous solution) and Raman spectroscopy (formation of sulfate and hydrogen sulfate). Measurement of the ion-transfer potential from the voltammograms enabled estimation of pyrosulfate's Gibbs energy of transfer between the phases. Quantum mechanical calculations were employed to estimate the thermodynamics for the reactions of pyrosulfate, hydrogen sulfate and sulfate, which supported the experimentally observed trends. Altogether, these results illustrate the use of electrochemistry at the μITIES to characterise dissolution and hydrolysis processes.

dc.languageEnglish
dc.publisherWILEY-V C H VERLAG GMBH
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LP160100359
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/FL180100087
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectElectrochemistry
dc.subjectelectrochemistry
dc.subjecthydrolysis
dc.subjectinterfaces
dc.subjectITIES
dc.subjectpyrosulfate
dc.subjectION TRANSFER
dc.subjectPOTENTIAL WINDOW
dc.subjectINTERFACE
dc.subjectSULFATE
dc.subjectABSORPTION
dc.subjectOXIDATION
dc.subjectENERGIES
dc.titleMonitoring the Dissolution and Hydrolysis of Pyrosulfate by Electrochemistry at a Liquid-Liquid Microinterface Array
dc.typeJournal Article
dcterms.source.volume9
dcterms.source.number23
dcterms.source.issn2196-0216
dcterms.source.titleChemElectroChem
dc.date.updated2023-01-10T06:15:45Z
curtin.departmentSchool of Molecular and Life Sciences (MLS)
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidArrigan, Damien [0000-0002-1053-1273]
curtin.contributor.orcidGale, Julian [0000-0001-9587-9457]
curtin.contributor.researcheridArrigan, Damien [A-7440-2010]
curtin.identifier.article-numbere202200681
dcterms.source.eissn2196-0216
curtin.contributor.scopusauthoridArrigan, Damien [7004238830]
curtin.contributor.scopusauthoridGale, Julian [7101993408]


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