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dc.contributor.authorKornienko, Nikolayen
dc.contributor.authorHeidary, Ninaen
dc.contributor.authorCibin, Giannantonioen
dc.contributor.authorReisner, Erwinen
dc.date.accessioned2018-09-05T12:43:09Z
dc.date.available2018-09-05T12:43:09Z
dc.date.issued2018-06en
dc.identifier.issn2041-6520
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/279422
dc.description.abstractA critical challenge in energy research is the development of earth abundant and cost-effective materials that catalyze the electrochemical splitting of water into hydrogen and oxygen at high rates and low overpotentials. Key to addressing this challenge lies not only in the synthesis of new materials, but also in the elucidation of their active sites, their structure under operating conditions and ultimately, extraction of the structure-function relationships used to spearhead the next generation of catalysts. In this work, we present a complete cycle of synthesis and operando characterization, and redesign of an amorphous cobalt phosphide (CoPx) bifunctional catalyst. The research was driven by integrated electrochemical analysis, Raman spectroscopy and gravimetric measurements utilizing a novel quartz crystal microbalance spectroelectrochemical cell to uncover the catalytically active species ofi amorphous CoPx and subsequently modify the material to enhance the activity of the elucidated catalytic phases. Illustrating the power of our approach, the second generation cobalt-iron phosphide (CoFePx) catalyst developed through an iteration of the operando measurement directed optimization cycle is superior in both hydrogen and oxygen evolution reactivity over the previous material and is capable of overall water electrolysis at a current density of 10 mA cm-2 with 1.5 V applied bias in 1M KOH electrolyte
dc.description.sponsorshipERC Consolidator Grant 'MatEnSAP', Royal Society Newton International Fellowship
dc.format.mediumElectronic-eCollectionen
dc.languageengen
dc.publisherRoyal Society of Chemistry (RSC)
dc.rightsAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleCatalysis by design: development of a bifunctional water splitting catalyst through an operando measurement directed optimization cycle.en
dc.typeArticle
prism.endingPage5333
prism.issueIdentifier24en
prism.publicationDate2018en
prism.publicationNameChemical scienceen
prism.startingPage5322
prism.volume9en
dc.identifier.doi10.17863/CAM.26796
dcterms.dateAccepted2018-05-07en
rioxxterms.versionofrecord10.1039/c8sc01415aen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-06en
dc.contributor.orcidKornienko, Nikolay [0000-0001-7193-2428]
dc.contributor.orcidCibin, Giannantonio [0000-0001-5761-6760]
dc.contributor.orcidReisner, Erwin [0000-0002-7781-1616]
dc.identifier.eissn2041-6539
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idECH2020 EUROPEAN RESEARCH COUNCIL (ERC) (682833)
pubs.funder-project-idRoyal Society (NF160054)


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's licence is described as Attribution 4.0 International (CC BY 4.0)