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Mesoporous Ruthenium/Ruthenium Oxide Thin Films: Active Electrocatalysts for the Oxygen Evolution Reaction
Author(s) -
Kibsgaard Jakob,
Hellstern Thomas R.,
Choi ShinJung,
Reinecke Benjamin N.,
Jaramillo Thomas F.
Publication year - 2017
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201700334
Subject(s) - oxygen evolution , ruthenium , mesoporous material , ruthenium oxide , materials science , nanoscopic scale , catalysis , oxide , thin film , porosity , nanotechnology , chemical engineering , electrode , chemistry , electrochemistry , composite material , organic chemistry , metallurgy , engineering
We report the first synthesis of a fully contiguous large area supported thin film of highly ordered mesoporous Ru and RuO 2 and investigate the electrocatalytic properties towards the oxygen evolution reaction (OER). We find that the nanoscale porous network of these catalysts provides significant enhancements in geometric OER activity without any loss in specific activity. This work demonstrates a strategy for engineering materials at the nanoscale that can simultaneously decrease precious metal loading and increase electrode activity.