Rapid and Scalable Synthesis of Mo-Based Binary and Ternary Oxides for Electrochemical Applications

5 years ago

Rapid and Scalable Synthesis of Mo-Based Binary and Ternary Oxides for Electrochemical Applications

Hai Wang, Shuangfeng Jia, Gan Qu, Fan Cao, Yiwen Tang, Lei Li, Tianqi Li, Jianbo Wang, Wenhao Ma, He Zheng

Mo-based binary oxides (MBOs) and Mo-based ternary oxides (MTOs) are a research focus because of their widespread applications. The traditional synthesis routes for MBOs and MTOs require high temperature and are time intense. Here, a rapid, facile, and scalable strategy to efficiently fabricate MBOs and MTOs with various morphologies and crystal structures is reported. Only 1 min is required for the whole process and the yield is above 90%. This strategy is the simplest and the fastest method reported and exhibits large potential for application. Furthermore, the as-synthesized HxMoO3 nanobelts and NiMoO4·xH2O nanowires display a specific capacitance of 660.3 F g−1 at 2 mV s−1 and a specific capacity of 549 C g−1 at 1 A g−1. In addition, to assemble the HxMoO3 and NiMoO4·xH2O electrodes together, the solid state hybrid electrolyte is employed to take advantage of MBOs and MTOs. The obtained NiMoO4·xH2O//HxMoO3 device delivers a specific capacitance of 156 F g−1 at 0.8 A g−1 and an energy density of 55.6 Wh kg−1 at a power density of 640 W kg−1, making it attractive for application as an energy storage material. A facile strategy to fabricate Mo-based binary oxides and Mo-based ternary oxides simultaneously is reported. This strategy exhibits large potential for industrialization. Moreover, the obtained HxMoO3 nanobelts and NiMoO4·xH2O nanowires display outstanding electrochemical performance, acting as negative and positive electrodes correspondingly. Consequently, the assembled NiMoO4·xH2O//HxMoO3 device delivers superior energy storage performance.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/adfm.201700928