The effect of preparation method on oxygen activation over Pt/TiO2 catalysts for toluene total oxidation

被引：8
作者：
Zeng, Yiqing [1 ]
Wang, Yanan [1 ]
Meng, Yahan [1 ]
Song, Fujiao [2 ,3 ]
Zhang, Shule [1 ]
Zhong, Qin [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China
[2] Yancheng Inst Technol, Sch Environm Sci & Engn, Yancheng 224051, Peoples R China
[3] Yancheng Inst Technol, Key Lab Adv Technol Environm Protect Jiangsu Prov, Yancheng 224051, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2019年 / 730卷
基金：
中国国家自然科学基金;
关键词：
PtTi catalyst; Preparation method; Oxygen activation; Toluene oxidation; VOLATILE ORGANIC-COMPOUNDS; METAL-SUPPORT INTERACTIONS; DEEP OXIDATION; N-HEXANE; REDUCTION; PLATINUM; DURABILITY; VACANCIES; MIXTURES; KINETICS;
D O I：
10.1016/j.cplett.2019.05.048
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Herein, we compared the catalyst formation process of three Pt/TiO2 catalysts prepared by impregnation (PtTi-I), deposition precipitation (PtTi-D) and photo-deposition (PtTi-P) to investigate its effect on oxgyen activation and toluene oxidation activity. The encapsulation of TiO2 on Pt particles induced by high temperature strengthened the metal-support interaction (MSI) but inhibited the activation of oxygen over PtTi-I catalyst, thus it showed the poorest activity in toluene oxidation. Since the selective deposition of Pt on certain face of TiO2 during photo-deposition process, PtTi-P exhibited stronger MSI and higher activity although it possessed much larger Pt particles than PtTi-D.
引用
收藏
页码：95 / 99
页数：5
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