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[MoO(S2)2L]1- (L = picolinate or pyrimidine-2-carboxylate) Complexes as MoSx-Inspired Electrocatalysts for Hydrogen Production in Aqueous Solution.

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Title: [MoO(S2)2L]1- (L = picolinate or pyrimidine-2-carboxylate) Complexes as MoSx-Inspired Electrocatalysts for Hydrogen Production in Aqueous Solution.
Authors: Garrett, Benjamin R.1, Click, Kevin A.1, Durr, Christopher B.1, Hadad, Christopher M.1, Yiying Wu1 wu.531@osu.edu
Source: Journal of the American Chemical Society. 10/19/2016, Vol. 138 Issue 41, p13726-13731. 6p.
Subjects: Pyrimidines, Complex compounds, Electrocatalysts, Hydrogen production, Aqueous solutions, Hydrogen evolution reactions
Abstract: Crystalline and amorphous molybdenum sulfide (Mo-S) catalysts are leaders as earth-abundant materials for electrocatalytic hydrogen production. The development of a molecular motif inspired by the Mo-S catalytic materials and their active sites is of interest, as molecular species possess a great degree of tunable electronic properties. Furthermore, these molecular mimics may be important for providing mechanistic insights toward the hydrogen evolution reaction (HER) with Mo-S electrocatalysts. Herein is presented two water-soluble Mo-S complexes based around the [MoO(S2)2L2]1- motif. We present 1H NMR spectra that reveal (NEt4)[MoO(S2)2picolinate] (Mo-pic) is stable in a d6-DMSO solution after heating at 100 °C, in air, revealing unprecedented thermal and aerobic stability of the homogeneous electrocatalyst. Both Mo-pic and (NEt4)[MoO(S2)2pyrimidine-2-carboxylate] (Mo-pym) are shown to be homogeneous electrocatalysts for the HER. The TOF of 27-34 s-1 and 42-48 s-1 for Mo-pic and Mo-pym and onset potentials of 240 mV and 175 mV for Mo-pic and Mo-pym, respectively, reveal these complexes as promising electrocatalysts for the HER. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Chemical Society is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: <searchLink fieldCode="AR" term="%22Garrett%2C+Benjamin+R%2E%22">Garrett, Benjamin R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Click%2C+Kevin+A%2E%22">Click, Kevin A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Durr%2C+Christopher+B%2E%22">Durr, Christopher B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hadad%2C+Christopher+M%2E%22">Hadad, Christopher M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yiying+Wu%22">Yiying Wu</searchLink><relatesTo>1</relatesTo><i> wu.531@osu.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Chemical+Society%22">Journal of the American Chemical Society</searchLink>. 10/19/2016, Vol. 138 Issue 41, p13726-13731. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Pyrimidines%22">Pyrimidines</searchLink><br /><searchLink fieldCode="DE" term="%22Complex+compounds%22">Complex compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Electrocatalysts%22">Electrocatalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+production%22">Hydrogen production</searchLink><br /><searchLink fieldCode="DE" term="%22Aqueous+solutions%22">Aqueous solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+evolution+reactions%22">Hydrogen evolution reactions</searchLink>
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  Data: Crystalline and amorphous molybdenum sulfide (Mo-S) catalysts are leaders as earth-abundant materials for electrocatalytic hydrogen production. The development of a molecular motif inspired by the Mo-S catalytic materials and their active sites is of interest, as molecular species possess a great degree of tunable electronic properties. Furthermore, these molecular mimics may be important for providing mechanistic insights toward the hydrogen evolution reaction (HER) with Mo-S electrocatalysts. Herein is presented two water-soluble Mo-S complexes based around the [MoO(S2)2L2]1- motif. We present 1H NMR spectra that reveal (NEt4)[MoO(S2)2picolinate] (Mo-pic) is stable in a d6-DMSO solution after heating at 100 °C, in air, revealing unprecedented thermal and aerobic stability of the homogeneous electrocatalyst. Both Mo-pic and (NEt4)[MoO(S2)2pyrimidine-2-carboxylate] (Mo-pym) are shown to be homogeneous electrocatalysts for the HER. The TOF of 27-34 s-1 and 42-48 s-1 for Mo-pic and Mo-pym and onset potentials of 240 mV and 175 mV for Mo-pic and Mo-pym, respectively, reveal these complexes as promising electrocatalysts for the HER. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Chemical Society is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1021/jacs.6b08652
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      – Code: eng
        Text: English
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      – SubjectFull: Pyrimidines
        Type: general
      – SubjectFull: Complex compounds
        Type: general
      – SubjectFull: Electrocatalysts
        Type: general
      – SubjectFull: Hydrogen production
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      – SubjectFull: Aqueous solutions
        Type: general
      – SubjectFull: Hydrogen evolution reactions
        Type: general
    Titles:
      – TitleFull: [MoO(S2)2L]1- (L = picolinate or pyrimidine-2-carboxylate) Complexes as MoSx-Inspired Electrocatalysts for Hydrogen Production in Aqueous Solution.
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            NameFull: Garrett, Benjamin R.
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            NameFull: Click, Kevin A.
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            NameFull: Durr, Christopher B.
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            NameFull: Hadad, Christopher M.
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            NameFull: Yiying Wu
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              Text: 10/19/2016
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              Y: 2016
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