Chlorinating CeO2 at surface oxygen vacancies to promote their selectivity in oxidative dehydrogenation of propane to propene

被引：19
作者：
Liu, Juanjuan [1 ]
Hao, Mengjia [2 ]
Chen, Changlei [2 ]
Du, Kaimin [2 ]
Zhou, Qiuyue [2 ]
Zou, Shihui [2 ]
Xiao, Liping [2 ]
Fan, Jie [2 ]
机构：
[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310036, Peoples R China
[2] Zhejiang Univ, Dept Chem, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310027, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2020年 / 528卷
基金：
中国博士后科学基金; 美国国家科学基金会;
关键词：
CeO2; Chlorination; Oxygen vacancy; Oxidative dehydrogenation of propane; Selectivity; CATALYTIC-OXIDATION; CO OXIDATION; METAL-OXIDES; CERIA; REDUCTION; STABILITY; BEHAVIOR; BORON; H-2;
D O I：
10.1016/j.apsusc.2020.147025
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：
Engineering surface oxygen species to tune catalytic selectivity of oxides is an emerging hot topic in heterogeneous catalysis. Here, we demonstrate that HCl treatment can controllably chlorinate CeO2 at surface oxygen vacancies and tightly regulate the content of surface oxygen vacancies (O-s). Structure-property studies reveal that the decreased ratio of O-s quasi-linearly promotes the C3H6 selectivity in oxidative dehydrogenation of propane (ODHP).
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页数：6
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