An advanced Ni-Fe layered double hydroxide electrocatalyst for water oxidation.

TitleAn advanced Ni-Fe layered double hydroxide electrocatalyst for water oxidation.
Publication TypeJournal Article
Year of Publication2013
AuthorsGong M, Li Y, Wang H, Liang Y, Wu JZ, Zhou J, Wang J, Regier T, Wei F, Dai H
JournalJournal of the American Chemical Society
Volume135
Issue23
Pagination8452-5
Date Published2013 Jun 12
Abstract

Highly active, durable, and cost-effective electrocatalysts for water oxidation to evolve oxygen gas hold a key to a range of renewable energy solutions, including water-splitting and rechargeable metal-air batteries. Here, we report the synthesis of ultrathin nickel-iron layered double hydroxide (NiFe-LDH) nanoplates on mildly oxidized multiwalled carbon nanotubes (CNTs). Incorporation of Fe into the nickel hydroxide induced the formation of NiFe-LDH. The crystalline NiFe-LDH phase in nanoplate form is found to be highly active for oxygen evolution reaction in alkaline solutions. For NiFe-LDH grown on a network of CNTs, the resulting NiFe-LDH/CNT complex exhibits higher electrocatalytic activity and stability for oxygen evolution than commercial precious metal Ir catalysts.

DOI10.1016/j.jep.2013.05.012
Alternate JournalJ. Am. Chem. Soc.