TY - JOUR
T1 - Hydrothermal synthesis of single crystal MoO 3 nanobelts and their electrochemical properties as cathode electrode materials for rechargeable lithium batteries
AU - Gao, Bin
AU - Fan, Huiqing
AU - Zhang, Xiaojun
PY - 2012/3
Y1 - 2012/3
N2 - Orthorhombic phase MoO 3 (α-MoO 3) nanobelts with uniform diameter are successfully prepared through a hydrothermal synthesis route at a low temperature (180 °C) in the presence of cetyltrimethylammonium bromide (CTAB) using saturated solution of ammonium molybdate tetrahydrate (AHM) as well as nitrate as raw materials, and are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The CTAB plays a key role in the formation of α-MoO 3 nanobelts and the aspect ratio of nanobelts significantly varies with quality of CTAB. The nanobelts with rectangular cross-sections have single crystalline orthorhombic phase structure, preferentially grow in [001] direction. Raman shifts of the α-MoO 3 nanobelts are fully consistent with that of flaky structure; however, intensity ratio of peaks 818.3 cm -1 and 991.2 cm -1 of α-MoO 3 nanobelts remarkably changes comparing with that of lamellar MoO 3. Electrochemical properties of α-MoO 3 single crystal nanobelts synthesized as cathode electrode materials for rechargeable lithium batteries are also measured. It indicates that the α-MoO 3 nanobelts exhibit a better performance than MoO 3 micro flakes.
AB - Orthorhombic phase MoO 3 (α-MoO 3) nanobelts with uniform diameter are successfully prepared through a hydrothermal synthesis route at a low temperature (180 °C) in the presence of cetyltrimethylammonium bromide (CTAB) using saturated solution of ammonium molybdate tetrahydrate (AHM) as well as nitrate as raw materials, and are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The CTAB plays a key role in the formation of α-MoO 3 nanobelts and the aspect ratio of nanobelts significantly varies with quality of CTAB. The nanobelts with rectangular cross-sections have single crystalline orthorhombic phase structure, preferentially grow in [001] direction. Raman shifts of the α-MoO 3 nanobelts are fully consistent with that of flaky structure; however, intensity ratio of peaks 818.3 cm -1 and 991.2 cm -1 of α-MoO 3 nanobelts remarkably changes comparing with that of lamellar MoO 3. Electrochemical properties of α-MoO 3 single crystal nanobelts synthesized as cathode electrode materials for rechargeable lithium batteries are also measured. It indicates that the α-MoO 3 nanobelts exhibit a better performance than MoO 3 micro flakes.
KW - A. Nanostructures
KW - A. Oxides
KW - B. Chemical synthesis
KW - D. Electrochemical properties
UR - http://www.scopus.com/inward/record.url?scp=84855274521&partnerID=8YFLogxK
U2 - 10.1016/j.jpcs.2011.11.019
DO - 10.1016/j.jpcs.2011.11.019
M3 - 文章
AN - SCOPUS:84855274521
SN - 0022-3697
VL - 73
SP - 423
EP - 429
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 3
ER -