Li, Licheng, Yue, Haiqin, Ji, Tuo, Li, Wei, Zhao, Xuejuan, Wang, Lei, She, Jie, Gu, Xiaoli and Li, Xiaobao (2019). Novel mesoporous TiO2(B) whisker-supported sulfated solid superacid with unique acid characteristics and catalytic performances. Applied Catalysis A: General, 574 , pp. 25-32.
Abstract
Mesoporous TiO2(B) whisker was firstly applied as a support for synthesizing the novel sulfated solid superacid (SO42−/TiO2(B)). According to NH3-TPD, TG and Py-IR characterization results, it was found that the similar amount of sulfate group on TiO2(B) and anatase showed significantly different acid characteristics and catalytic performances. The total acid amount of SO42−/TiO2(B) was about 1.8 times as anatase-supported sulfated solid superacid (SO42−/Anatase). Simultaneously, the SO42−/TiO2(B) possessed higher percentage of Brønsted acid and more weak-medium acid strength than SO42−/Anatase. These acidic properties endowed SO42−/TiO2(B) with the increased esterification reaction rate and decreased alkylation byproduct selectivity compared with that of SO42−/Anatase. Structure-performance analysis exhibited that there were more bridged bidentate sulfate groups coordinated to the TiO2(B) in SO42−/TiO2(B), which could induce more Ti cations than that of the chelating one. This was the key factor to be responsible for the unique acid characteristics of SO42−/TiO2(B). The present work provides a novel solid superacid and might open a strategy to mediate the acid characteristic for sulfated solid superacid.
Publication DOI: | https://doi.org/10.1016/j.apcata.2019.01.025 |
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Divisions: | College of Engineering & Physical Sciences College of Engineering & Physical Sciences > Aston Institute of Materials Research (AIMR) College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI) |
Additional Information: | © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Uncontrolled Keywords: | Acid properties,Catalysis,Coordination,Sulfated solid superacid,TiO (B),Catalysis,Process Chemistry and Technology |
Publication ISSN: | 1873-3875 |
Last Modified: | 05 Dec 2024 08:13 |
Date Deposited: | 08 Feb 2019 08:38 |
Full Text Link: | |
Related URLs: |
https://linking ... 926860X19300419
(Publisher URL) http://www.scop ... tnerID=8YFLogxK (Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2019-03-25 |
Published Online Date: | 2019-01-29 |
Accepted Date: | 2019-01-28 |
Authors: |
Li, Licheng
Yue, Haiqin Ji, Tuo Li, Wei ( 0000-0003-4036-467X) Zhao, Xuejuan Wang, Lei She, Jie Gu, Xiaoli Li, Xiaobao |
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