Improvement of catalytic activity by nanofibrous CuInS 2 for electrochemical CO 2 reduction

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dc.authorid0000-0002-3689-0469en_US
dc.contributor.authorAljabour, Abdalaziz
dc.contributor.authorApaydın, Doğukan Hazar
dc.contributor.authorCoşkun, Halime
dc.contributor.authorÖzel, Faruk
dc.contributor.authorErsöz, Mustafa
dc.contributor.authorStadler, Philipp
dc.contributor.authorSarıçiftçi, Niyazi Serdar
dc.date.accessioned2019-12-06T20:30:29Z
dc.date.available2019-12-06T20:30:29Z
dc.date.issued2016
dc.departmentKMÜ, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.description.abstractThe current study reports the application of chalcopyrite semiconductor CuInS 2 (CIS) nanofibers for the reduction of CO 2 to CO with a remarkable Faradaic efficiency of 77 ± 4%. Initially the synthesis of CuInS 2 nanofibers was carried out by adaptable electrospinning technique. To reduce the imperfection in the crystalline fiber, polyacrylonitrile (PAN) was selected as template polymer. Afterward, the desired chemical structure of nanofibers was achieved through sulfurization process. Making continuous CuInS 2 nanofibers on the cathode surface by the electrospinning method brings the advantages of being economical, environmentally safe, and versatile. The obtained nanofibers of well investigated size and diameter according to the SEM (scanning electron microscope) were used in electrochemical studies. An improvement of Faradaic efficiency was achieved with the catalytic active CuInS 2 in nanofibrous structure as compared to the solution processed CuInS 2 . This underlines the important effect of the electrode fabrication on the catalytic performance. Being less contaminated as compared to solution processing, and having a well-defined composition and increased catalytically active area, the CuInS 2 nanofiber electrodes prepared by the electrospinning technique show a 4 times higher Faradaic efficiency. Furthermore, in this study, attention was paid to the stability of the CuInS 2 nanofiber electrodes. The electrochemical reduction of CO 2 to CO by using CIS nanofibers coated onto FTO electrodes was carried out for 10 h in total. The observed current density of 0.22 mA cm -2 and the stability of CIS nanofiber electrodes are found to be competitive with other heterogeneous electrocatalysts. Hence, we believe that the fabrication and application of nanofibrous materials through the electrospinning technique might be of interest for electrocatalytic studies in CO 2 reduction. © 2016 American Chemical Society.en_US
dc.identifier.citationAljabour, A., Apaydın, D. H., Coşkun, H., Özel, F., Ersöz, ... Kus, M. (2016). Improvement of catalytic activity by nanofibrous CuInS 2 for electrochemical CO 2 reduction. Acs Applied Materials & Interfaces, 8, 46, 31695-31701.
dc.identifier.doi10.1021/acsami.6b11151
dc.identifier.endpage31701en_US
dc.identifier.issn1944-8244
dc.identifier.issue46en_US
dc.identifier.pmid27802019
dc.identifier.scopus2-s2.0-84999287817
dc.identifier.scopusqualityQ1
dc.identifier.startpage31695en_US
dc.identifier.urihttps://dx.doi.org/10.1021/acsami.6b11151
dc.identifier.urihttps://hdl.handle.net/11492/2149
dc.identifier.volume8en_US
dc.identifier.wosWOS:000388913900025
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorÖzel, Faruk
dc.language.isoen
dc.publisherAmerican Chemical Societyen_US
dc.relation.journalACS Applied Materials and Interfacesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCarbon Dioxideen_US
dc.subjectCuInS 2en_US
dc.subjectElectrochemical Reductionen_US
dc.subjectElectrolysisen_US
dc.subjectNanofiberen_US
dc.titleImprovement of catalytic activity by nanofibrous CuInS 2 for electrochemical CO 2 reductionen_US
dc.typeArticle

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