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dc.contributor.authorPatil, Supriya A.-
dc.date.accessioned2017-08-22T06:45:30Z-
dc.date.available2017-08-22T06:45:30Z-
dc.date.issued2015-11-
dc.identifier.citationACS APPLIED MATERIALS & INTERFACES, Page. 25914-25922en_US
dc.identifier.issn1944-8244-
dc.identifier.urihttp://pubs.acs.org/doi/10.1021/acsami.5b08501-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/28700-
dc.description.abstractMetal telluride nanostructures have demonstrated several potential applications particularly in harvesting and storing green energy. Metal tellurides are synthesized by tellurization process performed basically at high temperature in reducing gas atmosphere, which makes the process expensive and complicated. The development of a facile and economical process for desirable metal telluride nanostructures without complicated manipulation is still a challenge. In an effort to develop an alternative strategy of tellurization, herein we report a thin film formation of self-standing cobalt telluride nanotubes on various conducting and nonconducting substrates using a simple binder-free synthetic strategy based on anion exchange transformation from a thin film of cobalt hydroxycarbonate nanostructures in aqueous solution at room temperature. The nanostructured films before and after ion exchange transformation reaction are characterized using field emission scanning electron microscope, energy dispersive X-ray analyzer, X-ray photoelectron spectroscopy, thin film X-ray diffraction technique, high resolution transmission electron microscope, and selected area electron diffraction analysis technique. After the ion exchange transformation of nanostructures, the film shows conversion from insulator to highly electrical conductive semimetallic characteristic. When used as a counter electrode in I3–/I– redox electrolyte based dye-sensitized solar cells, the telluride film exhibits an electrocatalytic reduction activity for I3– with a demonstration of solar-light to electrical power conversion efficiency of 8.10%, which is highly competitive to the efficiency of 8.20% exhibited by a benchmarked Pt-film counter electrode. On the other hand, the telluride film electrode also demonstrates electrocatalytic activity for oxygen evolution reaction from oxidation of water.en_US
dc.description.sponsorshipThis research was supported by the KIST Institutional Program (2E23964) and by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2013009768)en_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectthin filmen_US
dc.subjectcobalt tellurideen_US
dc.subjection exchangeen_US
dc.subjecttellurizationen_US
dc.subjectelectrocatalysisen_US
dc.titleFormation of semimetallic cobalt telluride nanotube film via anion exchange tellurization strategy in aqueous solution for electrocatalytic applicationsen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/acsami.5b08501-
dc.relation.page25914-25922-
dc.relation.journalACS APPLIED MATERIALS & INTERFACES-
dc.contributor.googleauthorPatil, Supriya A.-
dc.contributor.googleauthorKim, Eun-Kyung-
dc.contributor.googleauthorShrestha, Nabeen K.-
dc.contributor.googleauthorChang, Jinho-
dc.contributor.googleauthorLee, Joong Kee-
dc.contributor.googleauthorHan, Sung-Hwan-
dc.relation.code2015001547-
dc.sector.campusS-
dc.sector.daehakRESEARCH INSTITUTE[S]-
dc.sector.departmentINSTITUTE OF NANO SCIENCE AND TECHNOLOGY-
dc.identifier.pidsupriya2812-
dc.identifier.pidhttp://orcid.org/0000-0002-0559-8481-
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RESEARCH INSTITUTE[S](부설연구소) > ETC
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