Effect of electron structure on the catalytic activity of LaCoO3 perovskite towards toluene oxidation

Hanlin Chen; Peng Liu; Gaoling Wei; Yu Huang; Xiaoju Lin; Xiaoliang Liang; Jianxi Zhu

doi:10.1039/d2cc00404f

Effect of electron structure on the catalytic activity of LaCoO₃ perovskite towards toluene oxidation

Chem Commun (Camb). 2022 Apr 12;58(30):4731-4734. doi: 10.1039/d2cc00404f.

Authors

Hanlin Chen^{1

2

3

4}, Peng Liu^{1

2

4}, Gaoling Wei⁵, Yu Huang⁶, Xiaoju Lin^{1

2

4}, Xiaoliang Liang^{1

2

4}, Jianxi Zhu^{1

2

4}

Affiliations

¹ CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, P. R. China. liangxl@gig.ac.cn.
² CAS Center for Excellence in Deep Earth Science, Guangzhou, 510640, China.
³ School of Environmental Science and Technology, Guangdong University of Petrochemical Technology, Maoming 525000, P. R. China.
⁴ University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
⁵ National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China.
⁶ Key Laboratory of Aerosol Chemistry and Physics, State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, P. R. China.

PMID: 35322265
DOI: 10.1039/d2cc00404f

Abstract

LaCoO₃ perovskites with different spin states of Co³⁺ were prepared by calcination at 600-1000 °C. LaCoO₃ with electron filling in the e_g orbital at 1 exhibited a moderate interaction between the surface oxygen, resulting in the best catalytic activity. This was verified by the O p-band center.