Heterostructured V2O5/FeVO4 for enhanced liquid-phase epoxidation of cyclooctene

Jiangyong Liu; Wanjing Wang; Lixia Wang; Panming Jian

doi:10.1016/j.jcis.2022.10.076

Heterostructured V₂O₅/FeVO₄ for enhanced liquid-phase epoxidation of cyclooctene

J Colloid Interface Sci. 2023 Jan 15;630(Pt A):804-812. doi: 10.1016/j.jcis.2022.10.076. Epub 2022 Oct 19.

Authors

Jiangyong Liu¹, Wanjing Wang², Lixia Wang², Panming Jian²

Affiliations

¹ School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China. Electronic address: liujy@yzu.edu.cn.
² School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China.

PMID: 36279839
DOI: 10.1016/j.jcis.2022.10.076

Abstract

Efficient cyclooctene epoxidation process under mild reaction conditions highly relies on the rational design and synthesis of high-performance heterogeneous catalysts. Herein, we report the facile one-pot synthesis of V₂O₅/FeVO₄ heterostructures featured with heterointerfaces for the boosted epoxidation of cyclooctene. The intensive interfacial electronic interaction between the V₂O₅ and FeVO₄ phases is versatile in the modulation of coordination microenvironment and formation of abundant oxygen vacancies, contributing to the performance enhancement. Under the optimal reaction conditions, a high yield of 87.0% can be achieved with the cyclooctene conversion of 96.5% (initial reaction rate of 55.1 mmol g_cat^-1 h^-1) and cyclooctene oxide selectivity of 90.2%. Additionally, the V₂O₅/FeVO₄ catalyst is stable and recyclable, endowing it a promising prospect for practical applications. This study demonstrates that the application of interface engineering strategy can be an appealing avenue towards the development of high-performance catalysts for epoxidation of cyclooctene and beyond.

Keywords: Cyclooctene; Epoxidation; Heterostructure; Interface; V(2)O(5)/FeVO(4).

MeSH terms

Catalysis
Cyclooctanes* / chemistry

Substances

Cyclooctanes