Highly efficient electrocatalytic hydrogen evolution from neutral aqueous solution by a water-soluble anionic cobalt(II) porphyrin

Chemical Communications : Chem Comm
Belete B BeyeneChen-Hsiung Hung

Abstract

We report the use of a water-soluble anionic cobalt(ii) tetrakis(p-sulfonatophenyl)porphyrin (CoTPPS) as a stable, active, and efficient catalyst for electrocatalytic H2 generation from neutral H2O without any organic additives. The molecule features nearly quantitative Faradaic efficiency with a turnover frequency of ∼1.83 s(-1) measured over 1 h and a turnover number of 1.9 × 10(4) moles of H2 per mole of catalyst with no loss of activity over 73 h at an applied potential of -1.29 V (vs. SHE) in neutral phosphate buffer solution.

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Citations

Dec 17, 2015·Inorganic Chemistry·Banu KandemirKara L Bren
Oct 7, 2016·Chemical Communications : Chem Comm·Nathan CoutardVincent Artero
Oct 19, 2016·Chemistry : a European Journal·Dominik LungerichNorbert Jux
Jun 21, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Yanyu WuDino Villagrán
Nov 14, 2018·Chemical Communications : Chem Comm·Flavien SciortinoFabienne Gauffre
Nov 23, 2018·Proceedings of the National Academy of Sciences of the United States of America·Bianca M Ceballos, Jenny Y Yang
Jan 19, 2019·Chemical Communications : Chem Comm·Kayaramkodath Chandran RanjeeshSukumaran Santhosh Babu
Oct 27, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Kohei MoritaHironobu Ozawa
Dec 15, 2020·Proceedings of the National Academy of Sciences of the United States of America·Kayla E ClaryDennis L Lichtenberger
Mar 9, 2021·Coordination Chemistry Reviews·Xuan ZhangOmar K Farha
Dec 19, 2019·ACS Applied Materials & Interfaces·Daily Rodríguez-PadrónRafael Luque
Nov 6, 2018·Journal of the American Chemical Society·Daniel MicheroniWenbin Lin

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