Lattice oxygen and surface states dual modulation of manganese oxide with remarkably enhanced catalytic activity for toluene oxidation

被引:8
作者
Zhang, Hanyu [1 ]
He, Liming [1 ]
Zhang, Xiaohan [1 ]
Xia, Yongze [1 ]
Qi, Jian [2 ]
Jin, Quan [1 ]
机构
[1] Jilin Univ, Sch Mat Sci & Engn, Key Lab Automobile Mat, Minist Educ, 5988 Renmin St, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, 1 North 2nd St, Beijing 100190, Peoples R China
基金
中国国家自然科学基金;
关键词
Manganese oxide; Catalytic oxidation; Oxygen species; Mn3+ species; TEMPERATURE; COMBUSTION; SELECTIVITY; REDOX;
D O I
10.1016/j.inoche.2021.108680
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The manganese oxide catalysts were synthesized by the hydrothermal method and applied for the catalytic oxidation of VOCs. The effects of lattice oxygen and surface states for enhancing the catalytic oxidation properties of toluene were investigated over MnOx with the different hydrothermal temperatures. MnOx prepared at 140 degrees C owned plenty of lattice oxygen, the highest content of surface Mn3+ species, excellent low-temperature reducibility and outstanding mobility of oxygen species, resulting in the improvement of catalytic performance.
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页数:5
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