Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
5092894
Reference Type
Journal Article
Title
Wettability Control of Co-SiO2@Ti-Si Core-Shell Catalyst to Enhance the Oxidation Activity with the In Situ Generated Hydroperoxide
Author(s)
Liu, M; Shi, S; Zhao, L; Wang, M; Zhu, G; Gao, J; Xu, J
Year
2019
Is Peer Reviewed?
1
Journal
ACS Applied Materials & Interfaces
ISSN:
1944-8244
EISSN:
1944-8252
Volume
11
Issue
16
Page Numbers
14702-14712
Language
English
PMID
30945538
DOI
10.1021/acsami.8b19704
Abstract
With the aim of utilizing O2 as an oxidant, cascade reaction strategy was usually employed by first transforming O2 into the in situ generated hydroperoxide and then oxidized the substrate. To combine the two steps more efficiently to get a higher reaction rate, a series of core-shell catalysts with core and shell having different wettabilities were designed. The catalysts were characterized by transmission electron microscopy, UV-vis spectroscopy, Fourier transform infrared, sessile water contact angle, among other methods. These catalysts were applied in the research of the diphenyl sulfide oxidation by the in situ generated hydroperoxide derived from ethylbenzene oxidation. Through control experiments, the hydrophobic modification in the shell and core will influence different steps of the overall cascade reaction. Further insight into the reaction illustrated that the overall reaction rate was not simply an adduct of the promotion effects from the two steps, which was mainly attributed to the inhibition effect for the co-oxidation of ethylbenzene with diphenyl sulfide. Through the guidance of the relationship, a rationally designed core-shell catalyst with appropriate modifying organic groups showed an enhanced performance of the overall cascade reaction. The rational design of the catalysts would provide a reference for other cascade reactions.
Tags
IRIS
•
Ethylbenzene
New Litsearch 4/2019
PubMed
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity