DOI number:10.1016/j.jcat.2020.08.010
Affiliation of Author(s):中南大学
Journal:Journal of Catalysis
Key Words:Catalyst; Co-Mn layered double hydroxide; CoMn spinel; Mechanism; Toluene pyrolysis
Abstract:In this work, CoMn spinel (MnCo2O4+δ) was prepared from CoMn LDH and was applied as a catalyst toward toluene pyrolysis. Spinel samples with different degrees of crystallinity were evaluated by isothermal and stepwise heating experiments, as well as feeding toluene with different concentrations. Especially for the spinel with high degree of crystallinity, results exhibited a relatively low pyrolysis temperature of 400 °C, a high toluene conversion rate of ~ 100%, a large H2 production and an acceptable benzene formation. More importantly, by various characterization techniques, an invisible active site was detected and believed to be formed by the reaction of CoMn spinel with toluene, and was designated as manganosite-cobalt nanoparticles supported on carbon nanotubes (MnO-Co/CNTs), which significantly promoted the degradation and carbonization reactions in the low temperature pyrolysis of toluene.
Indexed by:Journal paper
Volume:391
Page Number:111 - 122
ISSN No.:00219517
Translation or Not:no
Date of Publication:2020-11-01
Included Journals:SCI
Links to published journals:https://www.sciencedirect.com/science/article/pii/S0021951720303213?via%3Dihub