Water-soluble and air-stable [2Fe-2S]-metallopolymers

A new class of electrocatalysts for H 2 production via water splitting

Richard S Glass, Dong-Chul Pyun, Dennis L Lichtenberger, William P. Brezinski, Metin Karayilan, Kayla E. Clary, Nicholas G. Pavlopoulos, Dennis H. Evans

Research output: Contribution to journalArticle

Abstract

[2Fe–2S] organometallic complexes are effective electrocatalysts for the reduction of weak acids in acetonitrile to generate molecular hydrogen (H 2 ) (hydrogen evolution reaction, HER). Incorporation of such a [2Fe–2S] catalytic site into metallopolymers has been achieved using atom transfer radical polymerization (ATRP). These well-defined polymers have been structurally characterized by SEC, 1 H NMR and IR spectroscopy. These metallopolymers catalyze the electrochemical reduction of acetic acid in acetonitrile. In addition, [2Fe–2S] metallopolymers appended with amino groups were shown to be water-soluble and potent electrocatalysts for H 2 production at pH 7. In addition to the exceptional activity of these [2Fe–2S] metallopolymers in water, these catalysts maintain catalytic activity in air unlike comparable molecular catalysts.

Original languageEnglish (US)
JournalPhosphorus, Sulfur and Silicon and the Related Elements
DOIs
StatePublished - Jan 1 2019

Fingerprint

Electrocatalysts
Hydrogen
Air
Catalysts
Water
Atom transfer radical polymerization
Organometallics
Polymerization
Acetic Acid
Nuclear magnetic resonance spectroscopy
Infrared spectroscopy
Catalyst activity
Catalytic Domain
Polymers
Magnetic Resonance Spectroscopy
Acids
acetonitrile

Keywords

  • Energy storage
  • hydrogen evolution reaction
  • metallopolymers
  • [FeFe]-hydrogenase

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Water-soluble and air-stable [2Fe-2S]-metallopolymers : A new class of electrocatalysts for H 2 production via water splitting. / Glass, Richard S; Pyun, Dong-Chul; Lichtenberger, Dennis L; Brezinski, William P.; Karayilan, Metin; Clary, Kayla E.; Pavlopoulos, Nicholas G.; Evans, Dennis H.

In: Phosphorus, Sulfur and Silicon and the Related Elements, 01.01.2019.

Research output: Contribution to journalArticle

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