首页|(162863)Synthesis of porous α-MoO_3 microspheres as electrode materials for supercapacitors
(162863)Synthesis of porous α-MoO_3 microspheres as electrode materials for supercapacitors
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NSTL
Elsevier
Transition metal oxides have achieved tremendous attention in the field of supercapacitor devices due to their outstanding structural properties and capacitive behavior. Herein, a porous a-MoO_3 microspheres (A-SMO) were synthesized with the aid of CrCl_3.6H_2O via a facile hydrothermal reaction and subsequent annealing treatment. The results showed that CrCl_3.6H_2O plays a crucial role in manipulating morphology and increasing the specific surface area of the as-prepared products. Moreover, annealing treatment could transform the crystal structure from metastable hexagonal M0O_3 to stable orthogonal MoO_3, which is more beneficial for electron storage due to the layered crystal structure. Furthermore, the A-SMO displayed an excellent specific capacitance of 201.4 F g~(-1) compared with the pristine MoO_3 (MO) of 62.0 F g~(-1) and the annealed MO (A-MO) of 186.5 F g~(-1) at 0.2 A g~(-1), when they were directly served as supercapacitor electrodes. This research demonstrates that the as-obtained a-MoO_3 microspheres can serve as promising electrode materials for supercapacitors.
Stare Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
NSTL
Elsevier
