2-Methyl-2-propanyl 2-carbamimidoyl-1-piperidinecarboxylate
CAS Number:
1258640-98-0
Molecular Formula:
C11H21N3O2
Introduction of TiO2 enhancing the catalytic performance of Ti(SO4)2/SiO2 for dimethyl ether oxidation
Literature Information
Publication Date
2023-11-10
DOI
10.1039/D3CC04819E
Impact Factor
6.222
Authors
Xiujuan Gao, Faen Song, Xiaoxing Wang, Junfeng Zhang, Yizhuo Han, Qingde Zhang
View Original
Abstract
The introduction of a small amount of TiO2 changes the surface properties of the SiO2 material, which further significantly affects the dispersion state of Ti(SO4)2. The differences in acidity and redox caused by the distribution of Ti(SO4)2 are closely related to the catalyst performance for dimethyl ether (DME) oxidation. In particular, the calcination temperature could adjust the surface hydroxyl content of TiO2/SiO2, which determines the dispersion of Ti(SO4)2 components, resulting in distinct acid sites and Ti valence. The most number of weak acid sites and the highest proportion of Ti3+/Ti4+ in the Ti(SO4)2/TS-400 °C catalyst remarkably promote the formation of dimethoxymethane (DMM) from 14.4% to 82.6%, compared to the Ti(SO4)2/SiO2 catalyst.
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Source Journal
Chemical Communications
CiteScore:
8.6
Self-citation Rate:
4.7%
Articles per Year:
2458
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Molecular Formula:
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