Oxygen vacancies on the surface of HxWO3−y for enhanced charge storage

Oxygen vacancies on the surface of HxWO3−y for enhanced charge storage

The dominant role of surface oxygen vacancies (OVs) in improving energy storage is underscored by comparing the OV-mediated charge storage performance of surface and bulk defective HxWO3−y with that of WO3 and bulk defective e-HxWO3−y. It shows that surface OVs are key hot spots for faradaic reactio...

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Veröffentlicht in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018-01, Vol.6 (16), p.6780-6784
Hauptverfasser: Wang, Haiyan, Fan, Ruxue, Miao, Jingyu, Chen, Jiayi, Mao, Shanjun, Deng, Jiang, Wang, Yong
Format: Artikel
Sprache:eng
Schlagworte:
Energy storage
Oxygen
Surface charge
Vacancies
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Zusammenfassung:The dominant role of surface oxygen vacancies (OVs) in improving energy storage is underscored by comparing the OV-mediated charge storage performance of surface and bulk defective HxWO3−y with that of WO3 and bulk defective e-HxWO3−y. It shows that surface OVs are key hot spots for faradaic reactions in HxWO3−y, which promotes the formation of certain W5+ and W4+ during the reduction process.
ISSN:2050-7488
2050-7496
DOI:10.1039/c8ta00981c