Improvement of Catalytic Activity by Nanofibrous CuInS2 for Electrochemical CO2 Reduction

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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.authorSarıçiftci, Niyazi Serdar
dc.date.accessioned2020-03-26T19:24:39Z
dc.date.available2020-03-26T19:24:39Z
dc.date.issued2016
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThe current study reports the application of chalcopyrite semiconductor CuInS2 (CIS) nanofibers for the reduction of CO2 to CO with a remarkable Faradaic efficiency of 77 +/- 4%. Initially the synthesis of CuInS2 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 CuInS2 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 CuInS2 in nanofibrous structure as compared to the solution processed CuInS2. 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 CuInS2 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 CuInS2 nanofiber electrodes. The electrochemical reduction of CO2 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 CO2 reduction.en_US
dc.description.sponsorshipScientific Research Foundation; TUBITAK (The Scientific and Technological Research Council of Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [214M366]; Selcuk University, Scientific Research Projects Coordination UnitSelcuk University [16201044]; Austrian Science Foundation (FWF)Austrian Science Fund (FWF) [Z 222-N19]en_US
dc.description.sponsorshipWe thank the Scientific Research Foundation for financial support of this work. We would like to thank TUBITAK (The Scientific and Technological Research Council of Turkey) for financial support within the project [214M366] and for a scholarship to Mr. Abdalaziz Aljabour with the program 2215. Further, special thanks go to Selcuk University, Scientific Research Projects Coordination Unit for supporting Mr. Abdalaziz Aljabour in his PhD with the thesis Project No:16201044. Financial support of the Austrian Science Foundation (FWF) [Z 222-N19] within the Wittgenstein Prize for Prof. Sariciftci is highly acknowledged. We want to thank Selcuk University and Linz Institute for Organic Solar Cells (LIOS), Johannes Kepler University, for collaborational work. Also, special thanks go to Markus C. Scharber and Adam Getachew for fruitful discussions.en_US
dc.identifier.doi10.1021/acsami.6b11151en_US
dc.identifier.endpage31701en_US
dc.identifier.issn1944-8244en_US
dc.identifier.issn1944-8252en_US
dc.identifier.issue46en_US
dc.identifier.pmid27802019en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage31695en_US
dc.identifier.urihttps://dx.doi.org/10.1021/acsami.6b11151
dc.identifier.urihttps://hdl.handle.net/20.500.12395/33699
dc.identifier.volume8en_US
dc.identifier.wosWOS:000388913900025en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.relation.ispartofACS APPLIED MATERIALS & INTERFACESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectcarbon dioxideen_US
dc.subjectCuInS2en_US
dc.subjectelectrochemical reductionen_US
dc.subjectnanofiberen_US
dc.subjectelectrolysisen_US
dc.titleImprovement of Catalytic Activity by Nanofibrous CuInS2 for Electrochemical CO2 Reductionen_US
dc.typeArticleen_US

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