Porous cobalt-based thin film as a bifunctional catalyst for hydrogen generation and oxygen generation

Yang Yang; Huilong Fei; Gedeng Ruan; James M Tour

doi:10.1002/adma.201500894

Porous cobalt-based thin film as a bifunctional catalyst for hydrogen generation and oxygen generation

Adv Mater. 2015 May 27;27(20):3175-80. doi: 10.1002/adma.201500894. Epub 2015 Apr 14.

Authors

Yang Yang^{1

2}, Huilong Fei¹, Gedeng Ruan¹, James M Tour^{1

2

3}

Affiliations

¹ Department of Chemistry, Rice University, 6100 Main Street, Houston, TX, 77005, USA.
² Smalley Institute for Nanoscale Science and Technology, Rice University, 6100 Main Street, Houston, TX, 77005, USA.
³ Department of Materials Science and NanoEngineering, Rice University, 6100 Main Street, Houston, TX, 77005, USA.

PMID: 25872881
DOI: 10.1002/adma.201500894

Abstract

A mixed-phased Co-based catalyst composed of Co phosphide and Co phosphate is successfully fabricated for bifunctional water electrolysis. The highly porous morphology in this anodized film enables efficient catalytic activity toward water splitting in an extremely low loading mass. The mixed phases in the porous film afford an ability to generate both H2 and O2 in a single electrolyzer.

Keywords: catalysts; cobalt; porous; thin films; water splitting.