In situ formation of cobalt oxide nanocubanes as efficient oxygen evolution catalysts

Journal of the American Chemical Society
Gregory S HutchingsFeng Jiao

Abstract

Oxygen evolution from water poses a significant challenge in solar fuel production because it requires an efficient catalyst to bridge the one-electron photon capture process with the four-electron oxygen evolution reaction (OER). Here, a new strategy was developed to synthesize nonsupported ultrasmall cobalt oxide nanocubanes through an in situ phase transformation mechanism using a layered Co(OH)(OCH3) precursor. Under sonication, the precursor was exfoliated and transformed into cobalt oxide nanocubanes in the presence of NaHCO3-Na2SiF6 buffer solution. The resulting cobalt catalyst with an average particle size less than 2 nm exhibited a turnover frequency of 0.023 per second per cobalt in photocatalytic water oxidation. X-ray absorption results suggested a unique nanocubane structure, where 13 cobalt atoms fully coordinated with oxygen in an octahedral arrangement to form 8 Co4O4 cubanes, which may be responsible for the exceptionally high OER activity.

References

Jun 22, 2005·Journal of Synchrotron Radiation·B Ravel, M Newville
May 8, 2009·Journal of the American Chemical Society·M RischH Dau
Jan 21, 2010·Journal of the American Chemical Society·Javier J ConcepcionThomas J Meyer
Sep 16, 2010·Journal of the American Chemical Society·Yelena Gorlin, Thomas F Jaramillo
Sep 16, 2010·Journal of the American Chemical Society·Matthew W KananDaniel G Nocera
Oct 23, 2010·Journal of the American Chemical Society·James D BlakemoreRobert H Crabtree
Sep 24, 2011·Nature Chemistry·Gregory D ScholesRienk van Grondelle
Jan 13, 2012·Angewandte Chemie·Graeme P GardnerG Charles Dismukes
Jan 25, 2012·Nature Materials·Søren Dahl, Ib Chorkendorff
Jun 22, 2012·Journal of the American Chemical Society·Serena BerardiMarcella Bonchio
Aug 24, 2012·Journal of the American Chemical Society·Tomer ZidkiSergei V Lymar
Nov 20, 2012·Journal of the American Chemical Society·Dachao HongShunichi Fukuzumi
Mar 2, 2013·Journal of the American Chemical Society·Jonathan RosenFeng Jiao
Aug 16, 2013·Journal of the American Chemical Society·Michal BajdichAlexis T Bell
Jan 31, 2014·Nature Communications·Qi LuFeng Jiao
Mar 26, 2014·Journal of the American Chemical Society·Xin-Bao HanEn-Bo Wang
Jun 18, 2014·Journal of the American Chemical Society·Hongjin LvCraig L Hill
Jul 18, 2014·Nature Communications·Fang Song, Xile Hu
Aug 2, 2014·Chemical Reviews·Ke SunDeli Wang

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Citations

Oct 20, 2015·Journal of the American Chemical Society·Isolda Roger, Mark D Symes
Nov 26, 2015·Journal of the American Chemical Society·Paul F SmithG Charles Dismukes
Aug 13, 2015·Journal of the American Chemical Society·Fabio EvangelistiGreta Ricarda Patzke
Dec 16, 2016·ACS Applied Materials & Interfaces·Huayang ZhangShaobin Wang
Jan 19, 2017·Journal of the American Chemical Society·Jiong WangXin Wang
Feb 23, 2017·Annual Review of Physical Chemistry·Miao Zhang, Heinz Frei
Mar 16, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Xichen ZhouYong Ding
Dec 3, 2016·Chemical Society Reviews·Xiao-Yu YangBao-Lian Su
Jun 5, 2018·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Junqi LinYong Ding
May 8, 2018·Angewandte Chemie·Chakadola PandaMatthias Driess
Sep 26, 2015·ChemSusChem·Xiaohui DengHarun Tüysüz
Jul 28, 2016·Angewandte Chemie·Chuangang Hu, Liming Dai
Nov 22, 2018·Nature Communications·Biswarup ChakrabortyIra A Weinstock
Nov 17, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Umair ShamraizBareera Raza
Aug 24, 2018·ACS Applied Materials & Interfaces·Zhe XuZhigang Zou
Dec 10, 2016·ACS Applied Materials & Interfaces·Xiaohui DengHarun Tüysüz
Sep 28, 2017·Journal of the American Chemical Society·Fangyuan SongGreta R Patzke

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