Ontology highlight
ABSTRACT:
SUBMITTER: Kim TW
PROVIDER: S-EPMC4640143 | biostudies-literature | 2015 Oct
REPOSITORIES: biostudies-literature
Kim Tae Woo TW Ping Yuan Y Galli Giulia A GA Choi Kyoung-Shin KS
Nature communications 20151026
n-Type bismuth vanadate has been identified as one of the most promising photoanodes for use in a water-splitting photoelectrochemical cell. The major limitation of BiVO4 is its relatively wide bandgap (∼2.5 eV), which fundamentally limits its solar-to-hydrogen conversion efficiency. Here we show that annealing nanoporous bismuth vanadate electrodes at 350 °C under nitrogen flow can result in nitrogen doping and generation of oxygen vacancies. This gentle nitrogen treatment not only effectively ...[more]