期刊
ELECTRONIC MATERIALS LETTERS
卷 12, 期 2, 页码 296-300出版社
KOREAN INST METALS MATERIALS
DOI: 10.1007/s13391-015-5382-5
关键词
molybdenum dioxide; 3D graphene foam; negative electrode material; supercapacitor
资金
- National Natural Science Foundation of China [51302122, 51202100]
- Natural Science Foundation of Gansu Province in China [1208RJZA227]
- National Training Program of Innovation Entrepreneurship for Undergraduates of Lanzhou University [860605]
Molybdenum dioxide nanoparticles of diameter 100 nm were anchored uniformly to a three-dimensional (3D) graphene foam using an ultrasonication-assisted deposition method. X-ray diffraction and Raman spectroscopy indicated that the molybdenum dioxide nanoparticles had a monoclinic crystal structure. The 3D graphene/MoO2 nanoparticle composite showed excellent pseudocapacitive ability as its specific capacitance reached 404 F g(-1) at a scan rate of 2 mV s(-1) in the negative potential range, -1.0 to -0.2 V, in a neutral solution. Overall, the 3D graphene/MoO2 nanoparticle composite has great potential as an anode material for the next generation of high-performance supercapacitors.
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