Effect of Interaction between Pt and Different Crystalline Phases of TiO[sub.2] on Benzene Oxidation

To evaluate the effects of different TiO[sub.2] crystalline phases on the catalytic oxidation performance of benzene on Pt-loaded TiO[sub.2] catalysts, physicochemical examinations were conducted using several spectroscopic and analytical techniques. Obvious effects on the valence state and morpholo...

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Bibliographic Details
Published in:Catalysts 2024-04, Vol.14 (4)
Main Authors: Cheng, Hang, Hu, Jiangliang, Wu, Dongxia, Bao, Weiren, Hou, Changming, Lv, Xianyan, Chang, Liping, Wang, Jiancheng
Format: Article
Language:English
Subjects:
Analysis
Benzene
Methods
Oxidation-reduction reaction
Platinum
Properties
Structure
Titanium dioxide
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Summary:To evaluate the effects of different TiO[sub.2] crystalline phases on the catalytic oxidation performance of benzene on Pt-loaded TiO[sub.2] catalysts, physicochemical examinations were conducted using several spectroscopic and analytical techniques. Obvious effects on the valence state and morphology of Pt were exhibited by different crystalline phases. The rutile phase favored the formation of specific Pt(111) crystal faces, which enhanced the amount of surface-active oxygen species. Moreover, the àPt-O-Ti species was formed between Pt[sup.4+] and Ti at the edge of the Pt nanoparticles, promoting both electron flow and the transfer of reactive oxygen species, thus accounting for catalytic activity.
ISSN:2073-4344
2073-4344
DOI:10.3390/catal14040234