Promoting Photogenerated Holes Utilization in Pore-Rich WO sub(3) Ultrathin Nanosheets for Efficient Oxygen-Evolving Photoanode

Rational design of active artificial photoanode for photosynthesis water splitting is spotlight for future applications in sustainable energy conversion. In response, focusing on the full-scale restricting factors on the photoanode reaction, the pore-rich WO sub(3) ultrathin nanosheets with nearly f...

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Bibliographic Details
Published in:Advanced energy materials 2016-12, Vol.6 (23), p.np-np
Main Authors: Liu, Youwen, Liang, Lin, Xiao, Chong, Hua, Xuemin, Li, Zhou, Pan, Bicai, Xie, Yi
Format: Article
Language:English
Subjects:
Carriers
Chemical reactions
Electronic structure
Migration
Nanostructure
Oxidation
Photosynthesis
Tungsten oxides
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Summary:Rational design of active artificial photoanode for photosynthesis water splitting is spotlight for future applications in sustainable energy conversion. In response, focusing on the full-scale restricting factors on the photoanode reaction, the pore-rich WO sub(3) ultrathin nanosheets with nearly fully exposed highly active crystal facets are conceptually presented and experimentally achieved. The scrumptious chemical bond condition and derived electronic structure in pore-rich nanosheets realize the simultaneously optimizing on the multilimitation factors including the carrier of generation, migration, and reaction during overall oxygen-evolving photoanode reaction process. Benefiting from the synergic virtues of more photogenerated holes, rapid the migration rate, shorter migration path, and stronger ability of oxidation, the pore-rich WO sub(3) ultrathin nanosheets-based photoanode delivers delectable photoelectrocatalysis performance, substantially transcending the unmodified contrast. Significantly, the conception of the multilimiting factors coordinated regulation proposed in this work through scrumptious atomic structure design undoubtedly enables new perspective in exploring high-performance oxygen-evolving photoanode. This article mainly focuses on the hot topic of artificial photosynthesis water splitting, conceptually presents and experimentally achieves the pore-rich WO sub(3) ultrathin nanosheets-based photoanode. Profiting from the peculiar atomic arrangement and electron structure, the multilimitation overall photoanode reaction process including the carrier of generation, migration, and reaction acquire synergy regulation, bringing out prominent photoelectrocatalysis water oxidation performance.
ISSN:1614-6832
1614-6840
DOI:10.1002/aenm.201600437