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Highly Efficient and Stable Solar Water Splitting at (Na)WO 3 Photoanodes in Acidic Electrolyte Assisted by Non‐Noble Metal Oxygen Evolution Catalyst
Author(s) -
Sarnowska Marta,
Bienkowski Krzysztof,
Barczuk Piotr J.,
Solarska Renata,
Augustynski Jan
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201600526
Subject(s) - water splitting , oxygen evolution , catalysis , photocurrent , noble metal , electrolyte , materials science , metal , nanotechnology , chemical engineering , inorganic chemistry , electrochemistry , chemistry , photocatalysis , electrode , optoelectronics , organic chemistry , metallurgy , engineering
Keggin‐type polyoxometalates, [PW 12 O 40 ] 3− and [PMo 12 O 40 ] 3− , are shown to act as highly effective oxygen evolution reaction molecular catalysts in photoelectrochemical water splitting devices. This is the first example of an oxidatively stable in acid media, non‐noble metal, water splitting catalyst that allows an exceptionally high water oxidation photocurrent of 4.5 mA cm −2 at a (Na)WO 3 photoanode to be achieved.