An Alkaline-Stable, Metal Hydroxide Mimicking Metal-Organic Framework for Efficient Electrocatalytic Oxygen Evolution

Postsynthetic ion exchange of [Co2(μ-Cl)2(btta)] (MAF-X27-Cl, H2bbta =1H,5H-benzo(1,2-d:4,5-d')bistriazole) possessing open metal sites on its pore surface yields a material [Co2(μ-OH)2(bbta)] (MAF-X27-OH) functionalized by both open metal sites and hydroxide ligands, giving drastically improve...

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Veröffentlicht in:	Journal of the American Chemical Society Jg. 138; H. 27; S. 8336
Hauptverfasser:	Lu, Xue-Feng, Liao, Pei-Qin, Wang, Jia-Wei, Wu, Jun-Xi, Chen, Xun-Wei, He, Chun-Ting, Zhang, Jie-Peng, Li, Gao-Ren, Chen, Xiao-Ming
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	United States 13.07.2016
ISSN:	1520-5126, 1520-5126
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Beschreibung
Zusammenfassung:	Postsynthetic ion exchange of [Co2(μ-Cl)2(btta)] (MAF-X27-Cl, H2bbta =1H,5H-benzo(1,2-d:4,5-d')bistriazole) possessing open metal sites on its pore surface yields a material [Co2(μ-OH)2(bbta)] (MAF-X27-OH) functionalized by both open metal sites and hydroxide ligands, giving drastically improved electrocatalytic activities for the oxygen evolution reaction (an overpotential of 292 mV at 10.0 mA cm(-2) in 1.0 M KOH solution). Isotope tracing experiments further confirm that the hydroxide ligands are involved in the OER process to provide a low-energy intraframework coupling pathway.
Bibliographie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1520-5126 1520-5126
DOI:	10.1021/jacs.6b03125