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나노입자 연구단
나노입자 연구단
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Inhibition of CO poisoning on Pt catalyst coupled with the reduction of toxic hexavalent chromium in a dual-functional fuel cell

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Title
Inhibition of CO poisoning on Pt catalyst coupled with the reduction of toxic hexavalent chromium in a dual-functional fuel cell
Author(s)
Dong Young Chung; Kim, H.-I.; Chung, Y.-H.; Myeong Jae Lee; Yoo, S.J.; Bokare, A.D.; Choi, W.; Yung-Eun Sung
Publication Date
2014-12
Journal
SCIENTIFIC REPORTS, v.4, no., pp.7450 -
Publisher
NATURE PUBLISHING GROUP
Abstract
We propose a method to enhance the fuel cell efficiency with the simultaneous removal of toxic heavy metal ions. Carbon monoxide (CO), an intermediate of methanol oxidation that is primarily responsible for Pt catalyst deactivation, can be used as an in-situ reducing agent for hexavalent chromium (Cr (VI)) with reactivating the CO-poisoned Pt catalyst. Using electro-oxidation measurements, the oxidation of adsorbed CO molecules coupled with the concurrent conversion of Cr (VI) to Cr (III) was confirmed. This concept was also successfully applied to a methanol fuel cell to enhance its performance efficiency and to remove toxic Cr (VI) at the same time
URI
http://pr.ibs.re.kr/handle/8788114/2367
DOI
10.1038/srep07450
ISSN
2045-2322
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
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