Permethyl Cobaltocenium (Cp* 2Co+) as an Ultra-Stable Cation for Polymer Hydroxide-Exchange Membranes

Author(s)Gu, Shuang
Author(s)Wang, Junhua
Author(s)Kaspar, Robert B.
Author(s)Fang, Qianrong
Author(s)Zhang, Bingzi
Author(s)Coughlin, E. Bryan
Author(s)Yan, Yushan
Ordered AuthorShuang Gu, Junhua Wang, Robert B. Kaspar, Qianrong Fang, Bingzi Zhang, E. Bryan Coughlin & Yushan Yan
UD AuthorGu, Shuangen_US
UD AuthorWang, Junhuaen_US
UD AuthorKspar, Robert B.en_US
UD AuthorFang, Qianrongen_US
UD AuthorZhang, Bingzien_US
UD AuthorYan, Yushanen_US
Date Accessioned2016-04-25T19:12:40Z
Date Available2016-04-25T19:12:40Z
Copyright DateCopyright ©en_US
Publication Date2015-06-29
DescriptionPublisher's PDF.en_US
AbstractHydroxide (OH−)-exchange membranes (HEMs) are important polymer electrolytes enabling the use of affordable and earth-abundant electrocatalysts for electrochemical energy-conversion devices such as HEM fuel cells, HEM electrolyzers, and HEM solar hydrogen generators. Many HEM cations exist, featuring desirable properties, but new cations are still needed to increase chemical stability at elevated temperatures. Here we introduce the permethyl cobaltocenium [(C5Me5)2Co(III)+ or Cp*2Co+] as an ultra-stable organic cation for polymer HEMs. Compared with the parent cobaltocenium [(C5H5)2Co(III)+ or Cp2Co+], Cp*2Co+ has substantially higher stability and basicity. With polysulfone as an example, we demonstrated the feasibility of covalently linking Cp*2Co+ cation to polymer backbone and prepared Cp*2Co+-functionalized membranes as well. The new cation may be useful in designing more durable HEM electrochemical devices.en_US
DepartmentUniversity of Delaware. Department of Chemical & Biomolecular Engineering.en_US
CitationGu, S. et al. Permethyl Cobaltocenium (Cp*2Co+ ) as an Ultra-Stable Cation for Polymer Hydroxide Exchange Membranes. Sci. Rep. 5, 11668; doi: 10.1038/srep11668 (2015).en_US
DOI10.1038/srep11668en_US
ISSN2045-2322en_US
URLhttp://udspace.udel.edu/handle/19716/17680
Languageen_USen_US
PublisherNature Publishing Groupen_US
dc.rightsCC-BY 4.0en_US
dc.sourceScientific reportsen_US
dc.source.urihttp://www.nature.com/srep/en_US
TitlePermethyl Cobaltocenium (Cp* 2Co+) as an Ultra-Stable Cation for Polymer Hydroxide-Exchange Membranesen_US
TypeArticleen_US
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