Effect of Pd/Ce Loading and Catalyst Components on the Catalytic Abatement of Toluene
Monolithic catalysts are widely used in industrial catalysis. However, in the preparation of a monolithic catalyst, the traditional methods have some drawbacks such as low washcoat uploading ratio and poor uniformity. In the present work, the effects of Pd/Ce loading and catalyst components on the c...
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creator | Liang, Wenjun Shi, Xiujuan Li, Qinglei Ren, Sida Yin, Guobin |
description | Monolithic catalysts are widely used in industrial catalysis. However, in the preparation of a monolithic catalyst, the traditional methods have some drawbacks such as low washcoat uploading ratio and poor uniformity. In the present work, the effects of Pd/Ce loading and catalyst components on the catalytic abatement of toluene were investigated. The acid treatment of the substrate, the particle size of the slurry and the dispersant on the uniformity of the washcoat and the catalytic performance were also explored. Characterisation was achieved via BET, SEM, zeta potential and laser grain-size analyses. The results showed that the catalytic activity of the catalyst increased with the increasing of the Ce content. It was found that the 0.2Pd-0.3Ce/γ-Al2O3 catalysts had the best toluene catalytic activity. The pretreatment of the cordierite with 20% HCl could improve the properties of the cordierite. It was also found that reducing the particle size of the washcoat and adding dispersant PAA could effectively improve the stability of the suspension and the uniformity of the washcoat. When 20% HCl pretreatment was used, the toluene catalytic activity of the monolith catalyst prepared by cordierite increased, in which T10 and T90 decreased by about 5 °C. Decreasing the particle size and dispersant also promoted the efficiency of catalytic degradation. |
doi_str_mv | 10.3390/catal12020225 |
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However, in the preparation of a monolithic catalyst, the traditional methods have some drawbacks such as low washcoat uploading ratio and poor uniformity. In the present work, the effects of Pd/Ce loading and catalyst components on the catalytic abatement of toluene were investigated. The acid treatment of the substrate, the particle size of the slurry and the dispersant on the uniformity of the washcoat and the catalytic performance were also explored. Characterisation was achieved via BET, SEM, zeta potential and laser grain-size analyses. The results showed that the catalytic activity of the catalyst increased with the increasing of the Ce content. It was found that the 0.2Pd-0.3Ce/γ-Al2O3 catalysts had the best toluene catalytic activity. The pretreatment of the cordierite with 20% HCl could improve the properties of the cordierite. It was also found that reducing the particle size of the washcoat and adding dispersant PAA could effectively improve the stability of the suspension and the uniformity of the washcoat. When 20% HCl pretreatment was used, the toluene catalytic activity of the monolith catalyst prepared by cordierite increased, in which T10 and T90 decreased by about 5 °C. Decreasing the particle size and dispersant also promoted the efficiency of catalytic degradation.</description><identifier>ISSN: 2073-4344</identifier><identifier>EISSN: 2073-4344</identifier><identifier>DOI: 10.3390/catal12020225</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Acids ; Aluminum oxide ; Catalysis ; Catalysts ; Catalytic activity ; Catalytic oxidation ; Cerium ; Chemical reactions ; Cordierite ; Dispersants ; Experiments ; Grain size ; Monolithic materials ; Palladium ; Particle size ; Precious metals ; Pretreatment ; Substrates ; Toluene ; Transitional aluminas ; VOCs ; Volatile organic compounds ; Zeta potential</subject><ispartof>Catalysts, 2022-02, Vol.12 (2), p.225</ispartof><rights>2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c304t-63b48577e779f1924be27deef9457a70edcaa251cbf680bd199581d2adca65fb3</citedby><cites>FETCH-LOGICAL-c304t-63b48577e779f1924be27deef9457a70edcaa251cbf680bd199581d2adca65fb3</cites><orcidid>0000-0002-0318-0727</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Liang, Wenjun</creatorcontrib><creatorcontrib>Shi, Xiujuan</creatorcontrib><creatorcontrib>Li, Qinglei</creatorcontrib><creatorcontrib>Ren, Sida</creatorcontrib><creatorcontrib>Yin, Guobin</creatorcontrib><title>Effect of Pd/Ce Loading and Catalyst Components on the Catalytic Abatement of Toluene</title><title>Catalysts</title><description>Monolithic catalysts are widely used in industrial catalysis. However, in the preparation of a monolithic catalyst, the traditional methods have some drawbacks such as low washcoat uploading ratio and poor uniformity. In the present work, the effects of Pd/Ce loading and catalyst components on the catalytic abatement of toluene were investigated. The acid treatment of the substrate, the particle size of the slurry and the dispersant on the uniformity of the washcoat and the catalytic performance were also explored. Characterisation was achieved via BET, SEM, zeta potential and laser grain-size analyses. The results showed that the catalytic activity of the catalyst increased with the increasing of the Ce content. It was found that the 0.2Pd-0.3Ce/γ-Al2O3 catalysts had the best toluene catalytic activity. The pretreatment of the cordierite with 20% HCl could improve the properties of the cordierite. It was also found that reducing the particle size of the washcoat and adding dispersant PAA could effectively improve the stability of the suspension and the uniformity of the washcoat. When 20% HCl pretreatment was used, the toluene catalytic activity of the monolith catalyst prepared by cordierite increased, in which T10 and T90 decreased by about 5 °C. Decreasing the particle size and dispersant also promoted the efficiency of catalytic degradation.</description><subject>Acids</subject><subject>Aluminum oxide</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Catalytic oxidation</subject><subject>Cerium</subject><subject>Chemical reactions</subject><subject>Cordierite</subject><subject>Dispersants</subject><subject>Experiments</subject><subject>Grain size</subject><subject>Monolithic materials</subject><subject>Palladium</subject><subject>Particle size</subject><subject>Precious metals</subject><subject>Pretreatment</subject><subject>Substrates</subject><subject>Toluene</subject><subject>Transitional aluminas</subject><subject>VOCs</subject><subject>Volatile organic compounds</subject><subject>Zeta potential</subject><issn>2073-4344</issn><issn>2073-4344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpVkL1rwzAQxUVpoSHN2F3Q2Y0-LWsMJv0AQzsks5GlU5uQSKklD_nva5MM7d1wx73H7-Ah9EjJM-eaLK3J5kAZGZvJGzRjRPFCcCFu_-z3aJHSnoylKa-onKHt2nuwGUePP92yBtxE43bhC5vgcD0xzynjOh5PMUDICceA8zdcpbyzeNWZDMdRmxibeBggwAO68-aQYHGdc7R9WW_qt6L5eH2vV01hORG5KHknKqkUKKU91Ux0wJQD8FpIZRQBZ41hktrOlxXpHNVaVtQxM95L6Ts-R08X7qmPPwOk3O7j0IfxZctKzkpaCSpGV3Fx2T6m1INvT_3uaPpzS0k7hdf-C4__AoQvYco</recordid><startdate>20220201</startdate><enddate>20220201</enddate><creator>Liang, Wenjun</creator><creator>Shi, Xiujuan</creator><creator>Li, Qinglei</creator><creator>Ren, Sida</creator><creator>Yin, Guobin</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><orcidid>https://orcid.org/0000-0002-0318-0727</orcidid></search><sort><creationdate>20220201</creationdate><title>Effect of Pd/Ce Loading and Catalyst Components on the Catalytic Abatement of Toluene</title><author>Liang, Wenjun ; 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However, in the preparation of a monolithic catalyst, the traditional methods have some drawbacks such as low washcoat uploading ratio and poor uniformity. In the present work, the effects of Pd/Ce loading and catalyst components on the catalytic abatement of toluene were investigated. The acid treatment of the substrate, the particle size of the slurry and the dispersant on the uniformity of the washcoat and the catalytic performance were also explored. Characterisation was achieved via BET, SEM, zeta potential and laser grain-size analyses. The results showed that the catalytic activity of the catalyst increased with the increasing of the Ce content. It was found that the 0.2Pd-0.3Ce/γ-Al2O3 catalysts had the best toluene catalytic activity. The pretreatment of the cordierite with 20% HCl could improve the properties of the cordierite. It was also found that reducing the particle size of the washcoat and adding dispersant PAA could effectively improve the stability of the suspension and the uniformity of the washcoat. When 20% HCl pretreatment was used, the toluene catalytic activity of the monolith catalyst prepared by cordierite increased, in which T10 and T90 decreased by about 5 °C. Decreasing the particle size and dispersant also promoted the efficiency of catalytic degradation.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/catal12020225</doi><orcidid>https://orcid.org/0000-0002-0318-0727</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Acids Aluminum oxide Catalysis Catalysts Catalytic activity Catalytic oxidation Cerium Chemical reactions Cordierite Dispersants Experiments Grain size Monolithic materials Palladium Particle size Precious metals Pretreatment Substrates Toluene Transitional aluminas VOCs Volatile organic compounds Zeta potential |
title | Effect of Pd/Ce Loading and Catalyst Components on the Catalytic Abatement of Toluene |
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