Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 27, Pages 8336-8339Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b03125
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Funding
- 973 Project [2014CB845602, 2015CB932304]
- NSFC [21225105, 21290173, 51173212, 21473260]
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Postsynthetic ion exchange of [Co-2(mu-Cl)(2)(btta)] (MAF-X27-Cl, H(2)bbta =1H,5H-benzo (1,2-d:4,5-d')bistriazole) possessing open metal sites on its pore surface yields a material [Co-2(mu-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.
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