Nanostructured TiO 2 porous film supported on nickel was prepared through sol-gel process,and was used as photoelectrode in solar energy photoelectrochemical cell.It was found that short circuit photocurrent and open ...Nanostructured TiO 2 porous film supported on nickel was prepared through sol-gel process,and was used as photoelectrode in solar energy photoelectrochemical cell.It was found that short circuit photocurrent and open circuit photovoltage of the photoelectrodes increased with the increment of sintering temperature and thickness of TiO 2 film.Through STM,the pore quantity and diameter of nanostructured TiO 2 film were found to increase with the increment of sintering temperature.It was found that the transparence of different thickness nanostructured TiO 2 films coated on quartz did not change much.展开更多
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（nano TiO2-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...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（nano TiO2-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 m A/cm^2时,电流效率达84%,电解产率达89.6%。展开更多
文摘Nanostructured TiO 2 porous film supported on nickel was prepared through sol-gel process,and was used as photoelectrode in solar energy photoelectrochemical cell.It was found that short circuit photocurrent and open circuit photovoltage of the photoelectrodes increased with the increment of sintering temperature and thickness of TiO 2 film.Through STM,the pore quantity and diameter of nanostructured TiO 2 film were found to increase with the increment of sintering temperature.It was found that the transparence of different thickness nanostructured TiO 2 films coated on quartz did not change much.
文摘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（nano TiO2-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 m A/cm^2时,电流效率达84%,电解产率达89.6%。
