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电镀法制备Pt/TiO2纳米管电极及其电催化析氢性能
引用本文:吴安冉,陈言慧,王心心,周文元,何佳伟,王金淑,李洪义.电镀法制备Pt/TiO2纳米管电极及其电催化析氢性能[J].无机化学学报,2022,38(2):227-236.
作者姓名:吴安冉  陈言慧  王心心  周文元  何佳伟  王金淑  李洪义
作者单位:北京工业大学材料与制造学部
基金项目:北京市长城学者培养计划项目(No.CIT&TCD20190307);北京市自然科学基金(No.Z210016);北京市百千万人才计划项目(No.2020016)资助。
摘    要:采用阳极氧化法制备得到锐钛矿型二氧化钛(TiO2)纳米管阵列,在其表面通过电镀法沉积Pt,得到了低铂的Pt/TiO2纳米管电极(Pt/TiO2?NTs)。通过扫描电子显微镜和透射电子显微镜对其进行形貌表征后发现,Pt较为均匀地分布于TiO2纳米管阵列中。进一步的电催化析氢结果表明,Pb/TiO2?NTs在10 mA·cm-2时,过电位为0.079 V,塔菲尔斜率为42.7 mV·dec-1,较Pt/TiO2致密膜电极(Pt/TiO2?F)以及商业Pt/C催化剂显示了更为优异的催化活性。同时,在长循环稳定性测试(3000个周期)中,Pb/TiO2?NTs相较于上述2种对比电极显示了更为优异的稳定性。

关 键 词:TiO2纳米管载体  电镀  铂基催化剂  电催化析氢
收稿时间:2021/4/1 0:00:00
修稿时间:2021/12/14 0:00:00

Pt/TiO2 Nanotubes Electrode: Preparation by Electroplating Method and Electrocatalytic Hydrogen Evolution Performance
WU An-Ran,CHEN Yan-Hui,WANG Xin-Xin,ZHOU Wen-Yuan,HE Jia-Wei,WANG Jin-Shu,LI Hong-Yi.Pt/TiO2 Nanotubes Electrode: Preparation by Electroplating Method and Electrocatalytic Hydrogen Evolution Performance[J].Chinese Journal of Inorganic Chemistry,2022,38(2):227-236.
Authors:WU An-Ran  CHEN Yan-Hui  WANG Xin-Xin  ZHOU Wen-Yuan  HE Jia-Wei  WANG Jin-Shu  LI Hong-Yi
Institution:(Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China)
Abstract:Here, Pt modified anatase-type titanium dioxide (TiO2) nanotube arrays were prepared by electroplating method for a low-platinum Pt/TiO2 nanotubes electrode (Pt/TiO2-NTs). By contrast, we fixed Pt on TiO2 dense film by the same procedure as a control sample (Pt/TiO2-F). The scanning electron microscopy and transmission electron microscopy observation showed that Pt nanoparticles were distributed uniformly in nanotube arrays, and Pt/TiO2-NTs showed a higher efficiency in electrocatalytic hydrogen evolution compared with Pt/TiO2-F and commercial Pt/C catalyst, in which the overpotential of Pt/TiO2-NTs was 0.079 V, the Tafel slope was 42.7 mV·dec-1 at 10 mA·cm-2. The catalytic activity of 3 000 cycles duration stability test results showed that Pt/TiO2-NTs exhibited excellent stability compared with the above contrast electrodes.
Keywords:TiO2nanotubes carrier  electroplating  platinum?based catalyst  electrocatalytic hydrogen evolution
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