Continuous generation of lattice oxygen <i>via</i> redox engineering for boosting toluene degradation performances

Shiya He; Zhimin You; Xin Jin; Yi Wu; Cheng Chen; He Zhao; Jian Shen

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Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances

Resources and Environmental Technology | Updated：2026-01-06

- Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances
- Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances
- 中国化学工程学报（英文版） 2021年34卷第6期页码：258-266
- Affiliations：
  
  1. Department of Environment and Resources, Xiangtan University,Xiangtan,China,411105
  2. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum,Qingdao,China,266580
  3. Beijing Engineering Research Center of Process Pollution Control, Division of Environment Technology and Engineering, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2021
- Accepted：
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Shiya He, Zhimin You, Xin Jin, 等. Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances[J]. 中国化学工程学报（英文版）, 2021,34(6):258-266.

redox engineering for boosting toluene degradation performances[J]. 中国化学工程学报, 2021, 34(6): 258-266.
Shiya He, Zhimin You, Xin Jin, 等. Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances[J]. 中国化学工程学报（英文版）, 2021,34(6):258-266. DOI：

redox engineering for boosting toluene degradation performances[J]. 中国化学工程学报, 2021, 34(6): 258-266. DOI：

摘要

Abstract

Excellent performances promoted by lattice oxygen have attracted wide attention for catalytic degradation of volatile organic compounds (VOCs). However

how to control the continuous regeneration of lattice oxygen from the support is seldom reported. In this study

we selected sepiolite supported manganese-cobalt oxides (Co

100-

) as model catalysts by tuning Co/(Co + Mn) mass ratio (

= 3%

10%

15%

and 20%) to enhance toluene degradation efficiency

owing to lattice oxygen regeneration by redox cycle existing at the interface and Mn species with high valence state

initiated by cobalt catalytic performance under the role of crystal field stability phase. The results of activity test show that the sepiolite-Co

catalyst exhibit outperformances at 193 ℃ with 10

000 h

-1

GHSV. In addition

the catalyst existed at the bottom of the “volcano” curve correlated

with Co/(Co + Mn) weight ratio is sepiolite-Co

conforming its outperformance. Further characterized by investig

ating active sites structural and electronic properties

the essential of superior catalytic activity is attributed to the grands of lattice oxygen continuous formation resulted from redox engineering based on the high atomic ratio of surface lattice oxygen with continuous refilled from the support and that of Mn

/Mn

cycle initiated by cobalt catalytic behaviors. All in all

redox engineering

not only promotes grands of active species reversible regeneration

but supplies an alternative catalyst design strategy towards the terrific efficiency-to-cost ratio performance.

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Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances

Continuous generation of lattice oxygen via redox engineering for boosting toluene degradation performances

DOI：

摘要

Abstract

关键词

Keywords

references