Catalytic performance improvement of volatile organic compounds oxidation over MnOx and GdMnO3 composite oxides from spent lithium-ion batteries: Effect of acid treatment

Mingming Guo; Lizhong Liu; Jia-nan Gu; Hongbo Zhang; Xin Min; Jianxing Liang; Jinping Jia; Kan Li; Tonghua Sun

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Catalytic performance improvement of volatile organic compounds oxidation over MnO_x and GdMnO₃ composite oxides from spent lithium-ion batteries: Effect of acid treatment

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

- Catalytic performance improvement of volatile organic compounds oxidation over MnO_x and GdMnO₃ composite oxides from spent lithium-ion batteries: Effect of acid treatment
- Catalytic performance improvement of volatile organic compounds oxidation over MnO_x and GdMnO₃ composite oxides from spent lithium-ion batteries: Effect of acid treatment
- 中国化学工程学报（英文版） 2021年34卷第6期页码：278-288
- Affiliations：
  
  1. School of Environmental Science and Engineering, Shanghai Jiao Tong University,Shanghai,China,200240
  2. School of Chemistry and Chemical Engineering, Nantong University,Nantong,China,226019
  3. School of Chemical and Environmental Engineering, Shanghai Institute of Technology,Shanghai,China,201418
  4. Shanghai Institute of Pollution Control and Ecology Security,Shanghai,China,200092
  5. Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery,Shanghai,China,200240
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2021
- Accepted：
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Mingming Guo, Lizhong Liu, Jia-nan Gu, 等. Catalytic performance improvement of volatile organic compounds oxidation over MnO_x and GdMnO₃ composite oxides from spent lithium-ion batteries: Effect of acid treatment[J]. 中国化学工程学报（英文版）, 2021,34(6):278-288.

and GdMnO
Mingming Guo, Lizhong Liu, Jia-nan Gu, 等. Catalytic performance improvement of volatile organic compounds oxidation over MnO_x and GdMnO₃ composite oxides from spent lithium-ion batteries: Effect of acid treatment[J]. 中国化学工程学报（英文版）, 2021,34(6):278-288. DOI：

and GdMnO DOI：

摘要

Abstract

In this work

cathode materials of spent lithium-ion ternary batteries are recovered and used as metal precursor to prepare multi-metal oxides MnO

(SY) and GdMnO

(SY)

via

combustion method and sol–gel method

respectively. Furthermore

a series of MnO

(SY)-n and GdMnO

(SY)-

(

= 0.05

0.10

1.00

4.00

represents the dilute HNO

concentration) catalysts are fabricated by acid treatment of MnO

(SY) and GdMnO

(SY) samples and catalytic activities of oxygenated VOCs oxidation over all the prepared catalysts are investigated. Catalytic evaluation results show that acid-treated MnO

(SY)-0.10 and GdMnO

(SY)-0.05 samples perform the optimum VOCs removal efficiency respectively

which may be attributed to their obvious enhancement of physicochemical properties. In detail

MnO

(SY)-0.10 and GdMnO

(SY)-0.05 samples exhibit the larger specific surface area

bigger amount of surface high-valence metal ions (Mn

)

more abundant adsorbed oxygen species and better low-temperature reducibility

which can play a crucial role in the significant improvement of VOCs oxidation.

In situ

DRIFTS results imply that the possible main intermediates are -OCO

-COO and -C-O species produced during VOCs oxidation. Possible by-products are further determined

via

TD/GC–MS analysis.

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