确定了水热法制备TiO₂纳米线的最佳参数，对采用最佳参数制备的TiO₂纳米线进行碳化处理，再在其表面沉积铂得到Pt/TiC/TiO₂催化剂，研究了不同阶段产物的物相组成、化学成分和微观形貌，测试了Pt/TiC/TiO₂催化剂的催化甲醇氧化能力。结果表明：最佳水热参数为NaOH溶液浓度1 mol·L^-1、水热温度160℃、水热时间20 h，所得TiO₂纳米线的直径约为100 nm、长度超过1 μm；碳化后得到了TiC/TiO₂纳米线，沉积铂后，其表面被纳米级铂颗粒所覆盖；Pt/TiC/TiO₂催化剂催化甲醇氧化的起始氧化电位（对比Ag/AgCl）为0.34 V，比Pt/TiO₂催化剂催化下的负移了约0.15 V，其正扫电流密度峰值比Pt/TiO₂催化剂催化下的大8倍以上，碳化明显提高了Pt/TiO₂催化剂催化甲醇氧化的能力。

Optimal parameters of TiO₂ nanowires prepared by hydrothermal method were determined. TiO₂ nanowires prepared with the optimal parameters were treated by carbonization and surface deposited with platinum, and then the Pt/TiC/TiO₂ catalyst was obtained. The phase composition, chemical composition and micromorphology of the products in different stages were investigated, and the catalytic methonal oxidation capability of Pt/TiC/TiO₂ catalyst was tested. The results show that the optimal hydrothermal parameters were listed as follows:NaOH solution concentration of 1 mol·L^-1, hydrothermal temperature of 160℃, and hydrothermal time of 20 h. Consequently, TiO₂ nanowires with diameter of about 100 nm and length of over 1 μm were obtained. The TiC/TiO₂ nanowires were obtained after carbonization and the surface was coated with platinum nanoparticles after the deposition of platinum. The initial oxidation potential of methanol oxidation catalyzed by Pt/TiC/TiO₂ catalyst was 0.34 V (vs Ag/AgCl), about 0.15 V negative shift compared with that by Pt/TiO₂ catalyst, and the maximum forward current density was more than 8 times as large as that by Pt/TiO₂ catalyst. The carbonization improved the catalytic methanol oxidation capability of Pt/TiO₂ catalyst significantly.