報文
Formation Rate of LiNiO2 and Li+ Doping Rate to NiO in Molten Carbonates Containing Lithium Ion
1999 年 67 巻 6 号 p. 614-617
詳細
1999 年 67 巻 6 号 p. 614-617
The formations of Li-doped NiO and LiNiO2 in molten carbonates have been studied in O2 atmospheres from 873 K to 1173 K. NiO was reacted in Li containing molten carbonates; Li2CO3, (Li0.62K0.38)2CO3 and (Li0.52Na0.48)2CO3 melt for 20 h. The rate of lithiation reaction of NiO was measured by TGA and the products were analyzed by XRD. LiNiO2 was formed in O2 atmosphere at higher temperatures. The formation rate of LiNiO2 was the fastest in Li2CO3 and the temperature of LiNiO2 formation in Li/K carbonate and Li/Na carbonate was higher than that in Li2CO3. The Li content in molten carbonate and the oxygen in the atmosphere would have important roles for the lithiation of NiO and the formation of LiNiO2 as well as the reaction temperature.
