1 Results Stoichimetric quantities of lithium acetate,nickel acetate and ammonium dihydrogen phosphate were mixed with ethanol and stirred with heating until complete dissolution.A solution of 1 g chitosan in 1% aceti...1 Results Stoichimetric quantities of lithium acetate,nickel acetate and ammonium dihydrogen phosphate were mixed with ethanol and stirred with heating until complete dissolution.A solution of 1 g chitosan in 1% acetic acid was then poured into the heated and stirred solution until all solvents have evaporated.The precursor was then sintered at 500,600,700,800,900 and 1 000 ℃ for 3 hours.X-ray diffraction results showed that single phase LiNiPO4 was obtained at sintering temperatures above 600 ℃.TEM res...展开更多
1 Results PVA - based proton conductors were prepared by the solution cast technique.The system 80 wt.% PVA - 20 wt.% NH4NO3 exhibited a maximum room temperature conductivity of 8.29×10-7 S·cm-1.The addition...1 Results PVA - based proton conductors were prepared by the solution cast technique.The system 80 wt.% PVA - 20 wt.% NH4NO3 exhibited a maximum room temperature conductivity of 8.29×10-7 S·cm-1.The addition of 40 wt.% propylene carbonate (PC) increased the conductivity to 6.83×10-5 S·cm-1.With addition of 50 wt.% EC the conductivity was observed to increase to 1.19×10-5 S·cm-1.These results infer that PC and EC are equally strong in enhancing the conductivity.The maximum room temperature conductivity ...展开更多
1 Results Due to the high cell voltage of LiNiVO4,the compound properties have been continuously studied as the potential cathode material for Li-ion batteries.LiNiVO4 cathode product has been known to exhibit high ce...1 Results Due to the high cell voltage of LiNiVO4,the compound properties have been continuously studied as the potential cathode material for Li-ion batteries.LiNiVO4 cathode product has been known to exhibit high cell voltage of 4.8 V[1].LiCH3COO.2H2O (Sigma),Ni(CH3COO)2.4H2O (Aldrich) and NH4VO3(Ajax Finechem) were used as the starting reactants. In this work,LiNiVO4 was prepared by the sol gel method.This method was used to replace the conventional solid state reaction method in terms of the sample ...展开更多
文摘1 Results Stoichimetric quantities of lithium acetate,nickel acetate and ammonium dihydrogen phosphate were mixed with ethanol and stirred with heating until complete dissolution.A solution of 1 g chitosan in 1% acetic acid was then poured into the heated and stirred solution until all solvents have evaporated.The precursor was then sintered at 500,600,700,800,900 and 1 000 ℃ for 3 hours.X-ray diffraction results showed that single phase LiNiPO4 was obtained at sintering temperatures above 600 ℃.TEM res...
文摘1 Results PVA - based proton conductors were prepared by the solution cast technique.The system 80 wt.% PVA - 20 wt.% NH4NO3 exhibited a maximum room temperature conductivity of 8.29×10-7 S·cm-1.The addition of 40 wt.% propylene carbonate (PC) increased the conductivity to 6.83×10-5 S·cm-1.With addition of 50 wt.% EC the conductivity was observed to increase to 1.19×10-5 S·cm-1.These results infer that PC and EC are equally strong in enhancing the conductivity.The maximum room temperature conductivity ...
文摘1 Results Due to the high cell voltage of LiNiVO4,the compound properties have been continuously studied as the potential cathode material for Li-ion batteries.LiNiVO4 cathode product has been known to exhibit high cell voltage of 4.8 V[1].LiCH3COO.2H2O (Sigma),Ni(CH3COO)2.4H2O (Aldrich) and NH4VO3(Ajax Finechem) were used as the starting reactants. In this work,LiNiVO4 was prepared by the sol gel method.This method was used to replace the conventional solid state reaction method in terms of the sample ...
