Jump to main content
Jump to site search

Issue 2, 2014
Previous Article Next Article

Discovering Ce-rich oxygen evolution catalysts, from high throughput screening to water electrolysis

Author affiliations

Abstract

We report a new Ce-rich family of active oxygen evolution reaction (OER) catalysts composed of earth abundant elements, discovered using high-throughput methods. High resolution inkjet printing was used to produce 5456 discrete oxide compositions containing the elements nickel, iron, cobalt and cerium. The catalytic performance of each of these compositions was measured under conditions applicable to distributed solar fuels generation using a three-electrode scanning drop electrochemical cell. The catalytic activity and stability of representative compositions (Ni0.5Fe0.3Co0.17Ce0.03Ox and Ni0.3Fe0.07Co0.2Ce0.43Ox) from 2 distinct regions were verified by resynthesizing these compositions on glassy carbon rods for electrochemical testing. The activity of the new Ce-rich catalysts was further verified using an unrelated synthetic method to electrodeposit a pseudo-ternary composition Ni0.2Co0.3Ce0.5Ox, which produced a catalyst with 10 mA cm−2 oxygen evolution current at 310 mV overpotential. The unique Tafel behavior of these Ce-rich catalysts affords the opportunity for further improvement.

Graphical abstract: Discovering Ce-rich oxygen evolution catalysts, from high throughput screening to water electrolysis

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Nov 2013, accepted on 03 Jan 2014 and first published on 06 Jan 2014


Article type: Communication
DOI: 10.1039/C3EE43683G
Author version available: Download Author version (PDF)
Citation: Energy Environ. Sci., 2014,7, 682-688
  •   Request permissions

    Discovering Ce-rich oxygen evolution catalysts, from high throughput screening to water electrolysis

    J. A. Haber, Y. Cai, S. Jung, C. Xiang, S. Mitrovic, J. Jin, A. T. Bell and J. M. Gregoire, Energy Environ. Sci., 2014, 7, 682
    DOI: 10.1039/C3EE43683G

Search articles by author

Spotlight

Advertisements