Nickel and cobalt catalysts for production of H2 and oxidation of H2: Shoving protons around with pendant amines

R. Morris Bullock, Jenny Y. Yang, John A.S. Roberts, Uriah J. Kilgore, Eric S. Wiedner, Tianbiao Liu, Daniel L. Dubois

Research output: Contribution to journalConference article

Abstract

Catalysts that efficiently interconvert between electrical energy and chemical bonds (fuels) are needed for a sustainable and flexible energy supply. Reactions that involve transfer of multiple protons and electrons are pervasive in energy science, as exemplified by the two-proton, two-electron oxidation of H2 and the reverse, production of H2 by reduction of protons. Pendant amines incorporated into diphosphines function as proton relays, lowering the barrier for proton mobility and assisting in formation and cleavage of the H-H bond. A series of Ni(II) and Co(II) complexes with diphosphine/pendant amine ligands catalyze the production of H2, and related Ni(II) catalysts catalyze the oxidation of H2. Mn and Fe complexes with diphosphine/pendant amine ligands are also capable of heterolytic cleavage of H2 under some conditions.

Original languageEnglish
JournalACS National Meeting Book of Abstracts
Publication statusPublished - Aug 25 2011
Event241st ACS National Meeting and Exposition - Anaheim, CA, United States
Duration: Mar 27 2011Mar 31 2011

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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