Chitosan-based hybrid nanocomposite on aluminium for hydrogen production from water

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dc.contributor.authorKayan, Didem Balun
dc.contributor.authorİlhan, Merve
dc.contributor.authorKoçak, Derya
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:30:00Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:30:00Z
dc.date.issued2018
dc.departmentFen-Edebiyat Fakültesi
dc.description.abstractThe activity of the hydrogen evolution reaction (HER) has been investigated on a polypyrrole-chitosan composite film decorated with a small amount of gold (Au) nano-particles coated on an aluminium electrode. The facile aluminium modified with such a hybrid nanocomposite and its performance was investigated for hydrogen evolution for the first time. A simple two-step approach was applied, including the first co-electrodeposition of polypyrrole and chitosan at a constant current electrolysis accompanied by the electrodeposition of Au nanoparticles via cyclic voltammetry. The chitosan (Chi), which is available in abundant quantities as a raw material, was incorporated into polypyrrole (PPy) chains, and it plays a key role in keeping metal nanoparticles highly dispersed and interconnected through the formation of a collaborative hybrid network. The low loading (approximate to 2 wt%) of Au on this composite film favoured the related reaction more with a high cathodic current density and reduced the Tafel slope (-152 mV dec(-1)) confirming that the reaction proceeded via the Volmer-Heyrovsky mechanism with a rate control step by the Volmer reaction (proton discharge step). In addition, the long-term durability over 8 h achieved this hybrid composite as a promising nano-electrocatalyst for HER.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [TBAG-114Z315]
dc.description.sponsorshipThe authors would like to acknowledge the financial support of The Scientific and Technological Research Council of Turkey (TUBITAK) (Project Number: TBAG-114Z315).
dc.identifier.doi10.1007/s11581-017-2208-5
dc.identifier.endpage569en_US
dc.identifier.issn0947-7047
dc.identifier.issn1862-0760
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage563en_US
dc.identifier.urihttps://doi.org/10.1007/s11581-017-2208-5
dc.identifier.urihttps://hdl.handle.net/20.500.12451/6229
dc.identifier.volume24en_US
dc.identifier.wosWOS:000423203100024
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Heidelberg
dc.relation.ispartofIONICS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectHydrogen Evolution
dc.subjectNano-electrocatalyst
dc.subjectChitosan
dc.subjectConducting Composite
dc.titleChitosan-based hybrid nanocomposite on aluminium for hydrogen production from water
dc.typeArticle

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