A nickel phosphine complex as a fast and efficient hydrogen production catalyst

Lu Gan; Thomas L. Groy; Tarakeshwar Pilarisetty; Shobeir K S Mazinani; Jason Shearer; Vladimiro Mujica; Anne Jones

doi:10.1021/ja509779q

A nickel phosphine complex as a fast and efficient hydrogen production catalyst

Lu Gan, Thomas L. Groy, Tarakeshwar Pilarisetty, Shobeir K S Mazinani, Jason Shearer, Vladimiro Mujica, Anne Jones

Research output: Contribution to journal › Article

91 Scopus citations

Abstract

(Chemical Equation Presented) Here we report the electrocatalytic reduction of protons to hydrogen by a novel S₂P₂ coordinated nickel complex, [Ni(bdt)(dppf)] (bdt = 1,2-benzenedithiolate, dppf = 1,1′-bis(diphenylphosphino)ferrocene). The catalysis is fast and effi cient with a turnover frequency of 1240 s^-1 and an overpotential of only 265 mV for half activity at low acid concentrations. Furthermore, catalysis is possible using a weak acid, and the complex is stable for at least 4 h in acidic solution. Calculations of the system carried out at the density functional level of theory (DFT) are consistent with a mechanism for catalysis in which both protonations take place at the nickel center.

Original language	English (US)
Pages (from-to)	1109-1115
Number of pages	7
Journal	Journal of the American Chemical Society
Volume	137
Issue number	3
DOIs	https://doi.org/10.1021/ja509779q
State	Published - Jan 28 2015

Fingerprint

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

Cite this

Gan, L., Groy, T. L., Pilarisetty, T., Mazinani, S. K. S., Shearer, J., Mujica, V., & Jones, A. (2015). A nickel phosphine complex as a fast and efficient hydrogen production catalyst. Journal of the American Chemical Society, 137(3), 1109-1115. https://doi.org/10.1021/ja509779q

@article{ca5bfe6c3f38465caaf68a84e7f3f757,

title = "A nickel phosphine complex as a fast and efficient hydrogen production catalyst",

abstract = "(Chemical Equation Presented) Here we report the electrocatalytic reduction of protons to hydrogen by a novel S2P2 coordinated nickel complex, [Ni(bdt)(dppf)] (bdt = 1,2-benzenedithiolate, dppf = 1,1′-bis(diphenylphosphino)ferrocene). The catalysis is fast and effi cient with a turnover frequency of 1240 s-1 and an overpotential of only 265 mV for half activity at low acid concentrations. Furthermore, catalysis is possible using a weak acid, and the complex is stable for at least 4 h in acidic solution. Calculations of the system carried out at the density functional level of theory (DFT) are consistent with a mechanism for catalysis in which both protonations take place at the nickel center.",

author = "Lu Gan and Groy, {Thomas L.} and Tarakeshwar Pilarisetty and Mazinani, {Shobeir K S} and Jason Shearer and Vladimiro Mujica and Anne Jones",

year = "2015",

month = jan,

day = "28",

doi = "10.1021/ja509779q",

language = "English (US)",

volume = "137",

pages = "1109--1115",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "3",

}

TY - JOUR

T1 - A nickel phosphine complex as a fast and efficient hydrogen production catalyst

AU - Gan, Lu

AU - Groy, Thomas L.

AU - Pilarisetty, Tarakeshwar

AU - Mazinani, Shobeir K S

AU - Shearer, Jason

AU - Mujica, Vladimiro

AU - Jones, Anne

PY - 2015/1/28

Y1 - 2015/1/28

N2 - (Chemical Equation Presented) Here we report the electrocatalytic reduction of protons to hydrogen by a novel S2P2 coordinated nickel complex, [Ni(bdt)(dppf)] (bdt = 1,2-benzenedithiolate, dppf = 1,1′-bis(diphenylphosphino)ferrocene). The catalysis is fast and effi cient with a turnover frequency of 1240 s-1 and an overpotential of only 265 mV for half activity at low acid concentrations. Furthermore, catalysis is possible using a weak acid, and the complex is stable for at least 4 h in acidic solution. Calculations of the system carried out at the density functional level of theory (DFT) are consistent with a mechanism for catalysis in which both protonations take place at the nickel center.

AB - (Chemical Equation Presented) Here we report the electrocatalytic reduction of protons to hydrogen by a novel S2P2 coordinated nickel complex, [Ni(bdt)(dppf)] (bdt = 1,2-benzenedithiolate, dppf = 1,1′-bis(diphenylphosphino)ferrocene). The catalysis is fast and effi cient with a turnover frequency of 1240 s-1 and an overpotential of only 265 mV for half activity at low acid concentrations. Furthermore, catalysis is possible using a weak acid, and the complex is stable for at least 4 h in acidic solution. Calculations of the system carried out at the density functional level of theory (DFT) are consistent with a mechanism for catalysis in which both protonations take place at the nickel center.

UR - http://www.scopus.com/inward/record.url?scp=84921845393&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921845393&partnerID=8YFLogxK

U2 - 10.1021/ja509779q

DO - 10.1021/ja509779q

M3 - Article

C2 - 25562523

AN - SCOPUS:84921845393

VL - 137

SP - 1109

EP - 1115

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 3

ER -

Access to Document

10.1021/ja509779q