期刊
CRYSTENGCOMM
卷 18, 期 17, 页码 3040-3047出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ce00333h
关键词
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资金
- National Basic Research Program of China [2015CB932600]
- National Natural Science Foundation of China [21322106, 51472097, 51402114]
- Program for New Century Excellent Talents in University [NCET-13-0227]
- Program for the HUST Interdisciplinary Innovation Team [2015ZDTD038]
- Fundamental Research Funds for the Central Universities
Vanadium nitrides (VN) have drawn much attention due to their large negative potential window, high electronic conductivity and fast reversible redox reaction. The electrochemical performances of VN are affected by their morphology and specific surface area, which depend deeply on the synthesis method. Herein, a large-sized nanoflake V2O5 xerogel is synthesized by a hydrothermal method followed by freeze drying, and then the nanoflake V2O5 xerogel is thermally treated for various times under NH3 atmosphere to study the nitriding process. The results show that the nanoflake V2O5 xerogel is reduced to nanoflake V2O3 before being completely transformed into nanoflake VN. The nanoflake VN demonstrate superior capacitive performance than the nanoflake V2O5 xerogel and intermediate V2O3, which arises from higher intrinsic conductivity.
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