Eight Complexes were synthesized with propane diamine and cobalt with four different ions under the reaction of liquid-solid and solid-gas, respectively. After reacted with O2, they are characterized with elemental an...Eight Complexes were synthesized with propane diamine and cobalt with four different ions under the reaction of liquid-solid and solid-gas, respectively. After reacted with O2, they are characterized with elemental analysis, IR, XRD, thermogravimetric analysis. Their ability to bind O2 was studied with gas volume try. As a result, it is found that the ability to bind O2 was related to cobalt salt with different ions, and the types of synthesize methods due to different r eaction mechanism.展开更多
Vanadium sesquioxide (V2O3) nanopowder was successfully prepared by the solid phase reaction of themixture of vanadyl hydroxide (VO(OH)2) and ammonium chloride (NH4Cl) at 500 ℃. The as-obtained samples were character...Vanadium sesquioxide (V2O3) nanopowder was successfully prepared by the solid phase reaction of themixture of vanadyl hydroxide (VO(OH)2) and ammonium chloride (NH4Cl) at 500 ℃. The as-obtained samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). V2O3 nanoparticles were well dispersed and displayed sphere-like particles with diameters in the range of 30～50 nm.展开更多
W-doped Li4Ti5O12 in the form of Li4Ti4.95W0.05O12 was firstly synthesized via solid state reaction. X-ray diffraction (XRD) and scanning electron microscope (SEM) were employed to characterize the structure and morph...W-doped Li4Ti5O12 in the form of Li4Ti4.95W0.05O12 was firstly synthesized via solid state reaction. X-ray diffraction (XRD) and scanning electron microscope (SEM) were employed to characterize the structure and morphology of Li4Ti4.95W0.05O12 . W-doping does not change the phase composition and particle morphology, while remarkably improves its cycling stability at high charge/discharge rate. Li4Ti4.95W0.05O12 exhibits an excellent rate capability with a reversible capacity of 131.2 mA·h/g at 10C and even 118.6 mA·h/g at 20C. The substitution of W for Ti site can enhance the electronic conductivity of Li4Ti5O12 via the generation of mixing Ti4+/Ti3+ , which indicates that Li4Ti4.95W0.05O12 is promising as a high rate anode for the lithium-ion batteries.展开更多
文摘Eight Complexes were synthesized with propane diamine and cobalt with four different ions under the reaction of liquid-solid and solid-gas, respectively. After reacted with O2, they are characterized with elemental analysis, IR, XRD, thermogravimetric analysis. Their ability to bind O2 was studied with gas volume try. As a result, it is found that the ability to bind O2 was related to cobalt salt with different ions, and the types of synthesize methods due to different r eaction mechanism.
文摘Vanadium sesquioxide (V2O3) nanopowder was successfully prepared by the solid phase reaction of themixture of vanadyl hydroxide (VO(OH)2) and ammonium chloride (NH4Cl) at 500 ℃. The as-obtained samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). V2O3 nanoparticles were well dispersed and displayed sphere-like particles with diameters in the range of 30～50 nm.
文摘W-doped Li4Ti5O12 in the form of Li4Ti4.95W0.05O12 was firstly synthesized via solid state reaction. X-ray diffraction (XRD) and scanning electron microscope (SEM) were employed to characterize the structure and morphology of Li4Ti4.95W0.05O12 . W-doping does not change the phase composition and particle morphology, while remarkably improves its cycling stability at high charge/discharge rate. Li4Ti4.95W0.05O12 exhibits an excellent rate capability with a reversible capacity of 131.2 mA·h/g at 10C and even 118.6 mA·h/g at 20C. The substitution of W for Ti site can enhance the electronic conductivity of Li4Ti5O12 via the generation of mixing Ti4+/Ti3+ , which indicates that Li4Ti4.95W0.05O12 is promising as a high rate anode for the lithium-ion batteries.
