利用一步溶剂热法制备了CaTi_2O_4(OH)_2片状结构。利用X射线衍射仪和扫描电子显微镜测试样品的晶体结构和形貌,采用CHI660E电化学工作站对样品进行电化学性能分析,研究水/乙醇摩尔比对CaTi_2O_4(OH)_2样品的物相、形貌及电化学性能的...利用一步溶剂热法制备了CaTi_2O_4(OH)_2片状结构。利用X射线衍射仪和扫描电子显微镜测试样品的晶体结构和形貌,采用CHI660E电化学工作站对样品进行电化学性能分析,研究水/乙醇摩尔比对CaTi_2O_4(OH)_2样品的物相、形貌及电化学性能的影响。实验结果表明:随着水/乙醇摩尔比增加,样品的比电容先增加后减小,当水/乙醇摩尔比为50/10时,当水/乙醇摩尔比为50/10时,样品在10 m A/cm^2电流密度下比电容达到最优值268. 8 F·g^(-1)。展开更多
LiNiO2 was prepared by reaction of stoichiometric amounts of thoroughly mixed LiOH· H2O and preoxidation nanometer scale Ni3O2（OH）4 powders in O2 at the temperature of 700℃ for 6h. The products were tested by ...LiNiO2 was prepared by reaction of stoichiometric amounts of thoroughly mixed LiOH· H2O and preoxidation nanometer scale Ni3O2（OH）4 powders in O2 at the temperature of 700℃ for 6h. The products were tested by XRD, XPS, SEM and electrochemistry methods. It was shown that product was LiNiO2 single phase, and the valence of nickel was + 3; the average size of it was 40nm; its initial charge specific capacity is 168mAh· g- 1 and the coulomb efficiency is 90% ; the second charge specific capacity is 160mAh· g- 1 and the coulomb efficiency is 96% .展开更多
基金国家重点研发计划项目(2018YFC1903500)澳大利亚Edith Cowan University for staff support grant and staff excellent awards grant(SOE20161124)+1 种基金浙江省钱江人才计划:QJD1803014诺丁汉大学。
文摘利用一步溶剂热法制备了CaTi_2O_4(OH)_2片状结构。利用X射线衍射仪和扫描电子显微镜测试样品的晶体结构和形貌,采用CHI660E电化学工作站对样品进行电化学性能分析,研究水/乙醇摩尔比对CaTi_2O_4(OH)_2样品的物相、形貌及电化学性能的影响。实验结果表明:随着水/乙醇摩尔比增加,样品的比电容先增加后减小,当水/乙醇摩尔比为50/10时,当水/乙醇摩尔比为50/10时,样品在10 m A/cm^2电流密度下比电容达到最优值268. 8 F·g^(-1)。
文摘LiNiO2 was prepared by reaction of stoichiometric amounts of thoroughly mixed LiOH· H2O and preoxidation nanometer scale Ni3O2（OH）4 powders in O2 at the temperature of 700℃ for 6h. The products were tested by XRD, XPS, SEM and electrochemistry methods. It was shown that product was LiNiO2 single phase, and the valence of nickel was + 3; the average size of it was 40nm; its initial charge specific capacity is 168mAh· g- 1 and the coulomb efficiency is 90% ; the second charge specific capacity is 160mAh· g- 1 and the coulomb efficiency is 96% .
