Activation of Pt Nanoclusters on TiO2 via Tuning the Metallic Sites to Promote Low-Temperature CO Oxidation
Abstract
:1. Introduction
2. Results
2.1. Chemical and Structural Modifications
2.2. Surface Reduction Properties
2.3. Catalytic Performance
2.4. In Situ DRIFTS Study
2.4.1. In Situ CO Adsorption–Desorption–Oxidation
2.4.2. In Situ CO Oxidation
3. Discussion
4. Materials and Methods
4.1. Materials
4.2. Catalyst Preparation
4.3. Catalysts Characterization
4.4. Catalytic Performance Tests
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Catalysts | BET Surface Area (m2/g) | Pore Volume (cm3/g) | Pore Size (nm) | Pt0/(Pt0 + Pt2+) | Oads/(Olatt + Oads) | Ti3+/(Ti3+ + Ti4+) |
---|---|---|---|---|---|---|
Pt/TiO2 | 62.2 | 0.3 | 14.2 | 16.7% | 12.5% | 4.5% |
Pt/TiO2-H2 | 65.8 | 0.3 | 13.6 | 23.7% | 16.5% | 3.8% |
Pt/TiO2-CO | 65.0 | 0.3 | 14.9 | 46.9% | 17.0% | 4.5% |
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He, K.; Wang, Q. Activation of Pt Nanoclusters on TiO2 via Tuning the Metallic Sites to Promote Low-Temperature CO Oxidation. Catalysts 2021, 11, 1280. https://doi.org/10.3390/catal11111280
He K, Wang Q. Activation of Pt Nanoclusters on TiO2 via Tuning the Metallic Sites to Promote Low-Temperature CO Oxidation. Catalysts. 2021; 11(11):1280. https://doi.org/10.3390/catal11111280
Chicago/Turabian StyleHe, Kailin, and Qingyue Wang. 2021. "Activation of Pt Nanoclusters on TiO2 via Tuning the Metallic Sites to Promote Low-Temperature CO Oxidation" Catalysts 11, no. 11: 1280. https://doi.org/10.3390/catal11111280