Modifying electrodes with nickel-based molecular electrocatalysts for hydrogen production

Douglas H. Pool, Daniel L DuBois

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The complex [Ni(P 2 PhN 2 Ph) 2] +2 { P 2 PhN 2 Ph = 1,3,5,7-tetraphenyl-1,5-diaza-3,7-diphosphacyclooctane} catalyzes the electrochemical reduction of protons to form hydrogen useful for energy storage with a reported rate of 720 s -1. While this is a fast catalyst in a homogeneous solution, to be more useful in an integrated system, it would be useful to immobilize the catalyst at the interface between the electrode and bulk solution. A central issue with such modified electrodes is the transport of electrons and protons to the surface-confined catalyst. This work describes efforts in our laboratory to use functionalized versions of [Ni(P 2 PhN 2 Ph) 2] +2 to modify electrode surfaces in ways that maintain catalytic activity and long term stability. Efforts include using covalent attachment, electropolymerization, thin films of ionic liquid, thin films of ionic liquid combined with Nafion, and adsorption. The more successful methods will be discussed.

Original languageEnglish
Title of host publicationACS National Meeting Book of Abstracts
Publication statusPublished - 2011
Event242nd ACS National Meeting and Exposition - Denver, CO, United States
Duration: Aug 28 2011Sep 1 2011

Other

Other242nd ACS National Meeting and Exposition
CountryUnited States
CityDenver, CO
Period8/28/119/1/11

Fingerprint

Electrocatalysts
Hydrogen production
Nickel
Ionic Liquids
Ionic liquids
Electrodes
Catalysts
Protons
Thin films
Electropolymerization
Energy storage
Hydrogen
Catalyst activity
Adsorption
Electrons

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Modifying electrodes with nickel-based molecular electrocatalysts for hydrogen production. / Pool, Douglas H.; DuBois, Daniel L.

ACS National Meeting Book of Abstracts. 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pool, DH & DuBois, DL 2011, Modifying electrodes with nickel-based molecular electrocatalysts for hydrogen production. in ACS National Meeting Book of Abstracts. 242nd ACS National Meeting and Exposition, Denver, CO, United States, 8/28/11.
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