Nano-pore array structure of alumina films formed on different aluminum substrate in acid electrolyte by electrochemical anodization has been studied. It is found that dislocation as one of the important parameters in...Nano-pore array structure of alumina films formed on different aluminum substrate in acid electrolyte by electrochemical anodization has been studied. It is found that dislocation as one of the important parameters in self-assembling process not only affects the current density occuring in anodization, but also the nano-pore order. Dislocation leads to the differences of the energy of Al and the speed of Al 3+ forming in dislocation and non-dislocation. Dislocation was also in close relation with the acidity of the electrolyte used. The stronger the acidity of the electrolyte, the greater the influence of the dislocation.展开更多
A composite polymer electrolyte of Polyethylene oxide (PEO) LiClO 4 containing fine Al 2O 3 particles was studied by using differential scanning calorimetry, infrared spectroscopy and electrochemical impedance spectro...A composite polymer electrolyte of Polyethylene oxide (PEO) LiClO 4 containing fine Al 2O 3 particles was studied by using differential scanning calorimetry, infrared spectroscopy and electrochemical impedance spectroscopy. Compared with the polymer electrolyte without Al 2O 3 particles, the glass transition temperature and the degree of crystallinity were decreased, and the room temperature conductivity of PEO LiClO 4 Al 2O 3 composite polymer electrolyte was considerably enhanced. Moreover, the equivalent circuits and the effect of dc potential on impedance spectroscopy were discussed.展开更多
文摘Nano-pore array structure of alumina films formed on different aluminum substrate in acid electrolyte by electrochemical anodization has been studied. It is found that dislocation as one of the important parameters in self-assembling process not only affects the current density occuring in anodization, but also the nano-pore order. Dislocation leads to the differences of the energy of Al and the speed of Al 3+ forming in dislocation and non-dislocation. Dislocation was also in close relation with the acidity of the electrolyte used. The stronger the acidity of the electrolyte, the greater the influence of the dislocation.
文摘A composite polymer electrolyte of Polyethylene oxide (PEO) LiClO 4 containing fine Al 2O 3 particles was studied by using differential scanning calorimetry, infrared spectroscopy and electrochemical impedance spectroscopy. Compared with the polymer electrolyte without Al 2O 3 particles, the glass transition temperature and the degree of crystallinity were decreased, and the room temperature conductivity of PEO LiClO 4 Al 2O 3 composite polymer electrolyte was considerably enhanced. Moreover, the equivalent circuits and the effect of dc potential on impedance spectroscopy were discussed.
