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Facile scalable synthesis of TiO2/Carbon nanohybrids with ultrasmall TiO2 nanoparticles homogeneously embedded in carbon matrix
作者:Xiao-yan Wang, Jian-qiang Meng*, Mei-mei Wang, Ying Xiao, Rui Liu, Yong-gao Xia, Yuan Yao, Ezzeldin
关键字:Facile scalable synthesis of TiO2/Carbon nanohybrids with ultrasmall TiO2 nanoparticles homogeneously embedded in carbon matrix, Titania/Carbon Nanohybrids
论文来源:期刊
具体来源:ACS APPLIED MATERIALS & INTERFACES
发表时间:2015年
A facile scalable synthesis of Ti02/C nanohybrids inspired by polymeric dental
restorative materials has been developed, which creates ultra-small Ti02 nanoparticles
homogeneously embedded in the carbon matrix. The average size of the nanoparticles
is tuned between about 1 nm and 5 nm with the carbon content systematically
increased from  0%to 65%.Imaging analysis and scattering technique have been
applied to investigate the morphology of the Ti02 nanoparticles. The composition,
nature of carbon matrix, crystallinity, and tap density of the Ti02/C nanohybrids have
been studied. The application of the Ti02/C nanohybrids as lithium-ion battery anode
is demonstrated.  Unusual discharge/charge profiles have been exhibited, where
characteristic  discharge/charge  plateaus  of  crystalline  Ti02  are  significantly
diminished. The tap density, cyclic capacities, and rate performance at high current
densities (10 C, 20 C) of the TiOz/C nanohybrid anodes have been effectively
improved compared to the bare carbon anode and the Ti02/C nanohybrids with larger
particle size.