Tuning metal support interactions enhances the activity and durability of TiO₂-supported Pt nanocatalysts

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• 作者：Bing-Jen Hsieh^a ; Meng-Che Tsai^a ; Chun-Jern Pan^a ; Wei-Nien Su^b ; ^{wsu@mail.ntust.edu.tw} ; John Rick^a ; Hung-Lung Chou^b ; Jyh-Fu Lee^c ; Bing-Joe Hwang^a ; ^b ; ^{bjh@mail.ntust.edu.tw} ; ^{bjhn122@gmail.com}
• 关键词：Strong metal-support interaction ; oxygen reduction reaction ; TiO2 support ; Nb-doped TiO2 ; corrosion-resistant catalyst support
• 刊名：Electrochimica Acta
• 出版年：2017
• 出版时间：10 January 2017
• 年：2017
• 卷：224
• 期：Complete
• 页码：452-459
• 全文大小：2421 K
• 卷排序：224

文摘

The coverage of TiOx on Pt can be modified by thermal and fluoric acid treatments. Strong metal support interaction (SMSI) can be testified by electrochemical method. For the first time, the SMSI effect is observed at 200 °C with supporting TEM images. Increased activity and stability are attributed to stronger SMSI. This tunable approach is valid for other oxide supported catalysts, e.g. Pt/Nb-TiO2.