%0 Journal Article
%A Gan, Lu
%A Groy, Thomas
L.
%A Tarakeshwar, Pilarisetty
%A K. S. Mazinani, Shobeir
%A Shearer, Jason
%A Mujica, Vladimiro
%A Jones, Anne K.
%D 2015
%T A Nickel
Phosphine Complex as a Fast and Efficient
Hydrogen Production Catalyst
%U https://acs.figshare.com/articles/journal_contribution/A_Nickel_Phosphine_Complex_as_a_Fast_and_Efficient_Hydrogen_Production_Catalyst/2212237
%R 10.1021/ja509779q.s001
%2 https://acs.figshare.com/ndownloader/files/3847765
%K acidic solution
%K electrocatalytic reduction
%K 265 mV
%K novel S 2P
%K catalysi
%K Nickel Phosphine Complex
%K half activity
%K turnover frequency
%K DFT
%K 4 h
%K nickel center
%K acid concentrations
%K Efficient Hydrogen Production CatalystHere
%X 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 efficient 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.
%I ACS Publications