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Zhu H, Qiu W, Wu R, Li K, He H. Spatial confinement: An effective strategy to improve H 2O and SO 2 resistance of the expandable graphite-modified TiO 2-supported Pt nanocatalysts for CO oxidation. J Environ Sci (China) 2025; 148:57-68. [PMID: 39095190 DOI: 10.1016/j.jes.2023.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 08/08/2023] [Accepted: 08/08/2023] [Indexed: 08/04/2024]
Abstract
The expandable graphite (EG) modified TiO2 nanocomposites were prepared by the high shear method using the TiO2 nanoparticles (NPs) and EG as precursors, in which the amount of EG doped in TiO2 was 10 wt.%. Followed by the impregnation method, adjusting the pH of the solution to 10, and using the electrostatic adsorption to achieve spatial confinement, the Pt elements were mainly distributed on the exposed TiO2, thus generating the Pt/10EG-TiO2-10 catalyst. The best CO oxidation activity with the excellent resistance to H2O and SO2 was obtained over the Pt/10EG-TiO2-10 catalyst: CO conversion after 36 hr of the reaction was ca. 85% under the harsh condition of 10 vol.% H2O and 100 ppm SO2 at a high gaseous hourly space velocity (GHSV) of 400,000 hr-1. Physicochemical properties of the catalysts were characterized by various techniques. The results showed that the electrostatic adsorption, which riveted the Pt elements mainly on the exposed TiO2 of the support surface, reduced the dispersion of Pt NPs on EG and achieved the effective dispersion of Pt NPs, hence significantly improving CO oxidation activity over the Pt/10EG-TiO2-10 catalyst. The 10 wt.% EG doped in TiO2 caused the TiO2 support to form a more hydrophobic surface, which reduced the adsorption of H2O and SO2 on the catalyst, greatly inhibited deposition of the TiOSO4 and formation of the PtSO4 species as well as suppressed the oxidation of SO2, thus resulting in an improvement in the resistance to H2O and SO2 of the Pt/10EG-TiO2-10 catalyst.
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Affiliation(s)
- Hongtai Zhu
- Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing 100124, China; Advanced E-Catal. Corporation, Ltd., Beijing 100025, China
| | - Wenge Qiu
- Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing 100124, China.
| | - Rui Wu
- Advanced E-Catal. Corporation, Ltd., Beijing 100025, China
| | - Kai Li
- Advanced E-Catal. Corporation, Ltd., Beijing 100025, China
| | - Hong He
- Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing 100124, China; Advanced E-Catal. Corporation, Ltd., Beijing 100025, China.
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Continuous synthesis of TiO2-supported noble metal nanoparticles and their application in ammonia borane hydrolysis. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117479] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Shivhare A, Kumar A, Srivastava R. The Size‐Dependent Catalytic Performances of Supported Metal Nanoparticles and Single Atoms for the Upgrading of Biomass‐Derived 5‐Hydroxymethylfurfural, Furfural, and Levulinic acid. ChemCatChem 2021. [DOI: 10.1002/cctc.202101423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Atal Shivhare
- Catalysis Research Laboratory Department of Chemistry IIT Ropar Rupnagar Punjab-140001 India
| | - Atul Kumar
- Catalysis Research Laboratory Department of Chemistry IIT Ropar Rupnagar Punjab-140001 India
| | - Rajendra Srivastava
- Catalysis Research Laboratory Department of Chemistry IIT Ropar Rupnagar Punjab-140001 India
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Zhu C, Ding S, Hojo H, Einaga H. Controlling Diphenyl Ether Hydrogenolysis Selectivity by Tuning the Pt Support and H-Donors under Mild Conditions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03999] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chen Zhu
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Siyu Ding
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Hajime Hojo
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Hisahiro Einaga
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
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5
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Liu X, Ding S, Shigenobu S, Hojo H, Einaga H. Catalyst design of Pt/TiO2 microsphere for benzene oxidation under microwave irradiation. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.05.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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6
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The Effect of SO2 and H2O on the Interaction Between Pt and TiO2(P-25) During Catalytic CO Oxidation. Catal Letters 2019. [DOI: 10.1007/s10562-019-02672-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Hajar YM, Patel KD, Tariq U, Baranova EA. Functional equivalence of electrochemical promotion and metal support interaction for Pt and RuO2 nanoparticles. J Catal 2017. [DOI: 10.1016/j.jcat.2017.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Einaga H, Shiranita R, Saito H, Hata S. Codeposition of Colloidal Platinum Particles and Iron Chloride Precursor on TiO2 for Efficient Catalytic Oxidation of CO to CO2. CHEM LETT 2015. [DOI: 10.1246/cl.150903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hisahiro Einaga
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University
| | - Ryo Shiranita
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University
| | - Hikaru Saito
- Center of Advanced Instrumental Analysis, Kyushu University
| | - Satoshi Hata
- Department of Electrical and Materials Science, Faculty of Engineering Sciences, Kyushu University
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9
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Ma N, Suematsu K, Yuasa M, Shimanoe K. Pd size effect on the gas sensing properties of Pd-loaded SnO2 in humid atmosphere. ACS APPLIED MATERIALS & INTERFACES 2015; 7:15618-25. [PMID: 26111855 DOI: 10.1021/acsami.5b04380] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Pd particles of different nanosizes were loaded on the SnO2 surface by using different Pd precursors for the purpose of investigating the Pd size effect on gas sensing properties in humid atmosphere. One kind of Pd-loaded SnO2 nanoparticle was characterized by smaller Pd particles (2.6 nm) with high dispersion, while another kind was characterized by larger Pd particles (5-10 nm) with low dispersion. It was found that both kinds of Pd on the SnO2 surface let the mainly adsorbed oxygen species change from O(-) to O(2-) in humid atmosphere at 350 °C. In addition, the water vapor poisoning effect on electric resistance and sensor response was greatly reduced by loading Pd. Interestingly, for the CO response at 350 °C, Pd-SnO2 with small Pd size showed almost constant sensor response with varying humidity (0.5-4 vol % H2O). While the CO response of Pd-SnO2 with large Pd size even increased with increasing amount of water vapor. Moreover, the former CO response was increased from 300 to 350 °C, but the later response decreased with increase in operating temperature. These behaviors were analyzed by temperature programed reduction (TPR) in H2 and CO atmospheres, and they were supported by the different catalytic activities of different nanosized Pd particles.
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Affiliation(s)
- Nan Ma
- †Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
| | | | - Masayoshi Yuasa
- §Faculty of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
| | - Kengo Shimanoe
- §Faculty of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
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10
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Munnik P, de Jongh PE, de Jong KP. Recent Developments in the Synthesis of Supported Catalysts. Chem Rev 2015; 115:6687-718. [DOI: 10.1021/cr500486u] [Citation(s) in RCA: 779] [Impact Index Per Article: 86.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Peter Munnik
- Inorganic
Chemistry and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Petra E. de Jongh
- Inorganic
Chemistry and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Krijn P. de Jong
- Inorganic
Chemistry and Catalysis,
Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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Ma N, Suematsu K, Yuasa M, Kida T, Shimanoe K. Effect of water vapor on Pd-loaded SnO2 nanoparticles gas sensor. ACS APPLIED MATERIALS & INTERFACES 2015; 7:5863-9. [PMID: 25734500 DOI: 10.1021/am509082w] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The effect of water vapor on Pd-loaded SnO2 sensor was investigated through the oxygen adsorption behavior and sensing properties toward hydrogen and CO under different humidity conditions. On the basis of the theoretical model reported previously, it was found that the mainly adsorbed oxygen species on the SnO2 surface in humid atmosphere was changed by loading Pd, more specifically, for neat SnO2 was O(-), while for 0.7% Pd-SnO2 was O(2-). The water vapor poisoning effect on electric resistance and sensor response was reduced by loading Pd. Moreover the sensor response in wet atmosphere was greatly enhanced by loading Pd. It seems that the electron depletion layer by p-n junction of PdO-SnO2 may impede OH(-) adsorption.
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Affiliation(s)
| | | | | | - Tetsuya Kida
- §Department of Applied Chemistry and Biochemistry, Kumamoto University, Kumamoto 860-8555, Japan
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12
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Einaga H, Kawarada J, Kimura K, Teraoka Y. Preparation of platinum nanoparticles on TiO2 from DNA-protected particles. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.04.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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13
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Xia BY, Ding S, Wu HB, Wang X, Wen (David) X. Hierarchically structured Pt/CNT@TiO2nanocatalysts with ultrahigh stability for low-temperature fuel cells. RSC Adv 2012. [DOI: 10.1039/c1ra00587a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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Xia BY, Wang B, Wu HB, Liu Z, Wang X, (David) Lou XW. Sandwich-structured TiO2–Pt–graphene ternary hybrid electrocatalysts with high efficiency and stability. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32816j] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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