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Papers |
First Author: |
WANG Chunqi |
Abstract: |
The position of Ce doping has a significant effect on ambient HCHO storage and catalytic oxidation on layered MnO2. By associating structure and performance, it is unveiled that doping Ce into in-layered lattice of MnO2 is favorable to generation of high-valence Mn cations causing enhancement of oxidizing ability and capacity, but an opposite influence is displayed by inter-layered Ce doping. From the aspect of energy minimization calculated by DFT, in-layered Ce doping is also recommended, due to the decreased energies for molecule adsorption and oxygen vacancy formation. As a result, in-layered Ce-doped MnO2 performs an exceptional activity in catalyzing deep oxidation of HCHO, and a fourfold higher capacity of ambient HCHO storage than pristine MnO2. The optimal oxide is combined with electromagnetic induction heating to complete “storage-oxidation” cycle, as a promising approach absolutely depending on non-noble oxides and household appliances to realize long-acting removal of indoor HCHO at room temperature.
![](http://iue.ac.cn/xwzx/kydt/202303/W020230331555678510797.jpg)
Schematic diagram and performance evaluation of manganese oxide electromagnetic induction driven 'storage-oxidation' cycle |
Contact the author: |
CHEN Jin,JIA Hongpeng,HE Hong |
Page Number: |
4598-4607 |
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PubYear: |
March 7, 2023 |
Volume: |
57 |
Publication Name: |
Environmental Science & Technology |
The full text link: |
https://doi.org/10.1021/acs.est.3c00420 |
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