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根据热力学软件及结合最新技术研究进展计算出由碳热还原制备TiC0.5O0.5的理论热力学数据,采用差热热重分析对石墨、炭黑和石油焦三种碳质还原剂还原TiO2的历程进行研究试验,对不同碳质还原剂下制备得到的钛可溶阳极进行物相和结构分析.结果表明:TiC0.5O0.5固溶体的吉布斯自由能与温度满足ΔG =385 418-262.1 T的关系式,高温、低真空利于制备TiC0.5O0.5固溶体形成;石墨和炭黑热还原制备TiC0.5O0.5固溶体反应历程相同,而与石油焦不同,石墨反应生成TiC0.5O0.5固溶体初始温度较其他两种还原剂低;石墨料制得固溶体颗粒较均匀,而石油焦料存在反应不完全现象.

参考文献

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