CAJ | 학술논문

运用电沉积法在纳米TiO2膜上电沉积分散的Pt微粒制成钛基纳米TiO2-Pt复合膜（ nanoTiO2-Pt）修饰电极，采用循环伏安法和电解氧化法，研究了复合膜电极的电催化活性以及氧化甘油为甘油醛的过程。结果表明，纳米TiO2为锐钛矿型，Pt纳米粒子均匀分散在TiO2多孔膜的表面和内部。复合膜电极在常温常压下对甘油的电化学氧化具有高催化活性和稳定性，在25~30℃下，电流密度为25 mA/cm2时，电流效率达84%，电解产率达89.6%。
운용전침적법재납미TiO2막상전침적분산적Pt미립제성태기납미TiO2-Pt복합막（ nanoTiO2-Pt）수식전겁，채용순배복안법화전해양화법，연구료복합막전겁적전최화활성이급양화감유위감유철적과정。결과표명，납미TiO2위예태광형，Pt납미입자균균분산재TiO2다공막적표면화내부。복합막전겁재상온상압하대감유적전화학양화구유고최화활성화은정성，재25~30℃하，전류밀도위25 mA/cm2시，전류효솔체84%，전해산솔체89.6%。
NanoTiO2-Pt complex catalysts were prepared by electrochemical scan electrodepositing meth-od. The electrocatalytic activity of nanoTiO2-Pt complex film electrode was investigated by cyclic voltam-metry and bulk electrolysis. The results indicated that the nanoTiO2 was anatase and Pt nanoparticles were dispersed uniformly on the surface and interior of TiO2 film. NanoTiO2-Pt complex film electrode exhibited high electrochemical activity and very high electrocatalytic activity for the electro-oxidation of glycerin in atmosphere pressure. The yield and current efficiency was approximately 89. 6% and 84% at 25~30 ℃and a current density of 25 mA/cm2 ,respectively.