Synthesis of [email protected](M = Co, Ni, Cu) Bimetallic Catalysts and Their Catalytic Performance for Direct Synthesis of H2O2
Hydrogen peroxide (H2O2), as a clean and green oxidant, is widely used in many fields. The direct synthesis of H2O2 (DSHP) from H2 and O2 has attracted most research interest because it relates to a facile, environmentally friendly, and economic process. Yolk–shell Pd-M@HCS (hollow carbon sphere) (M...
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| Veröffentlicht in: | Catalysts 2020-01, Vol.10 (3), p.303 |
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| creator | Wang, Yaodan Pan, Hongyan Lin, Qian Shi, Yongyong Zhang, Jiesong |
| description | Hydrogen peroxide (H2O2), as a clean and green oxidant, is widely used in many fields. The direct synthesis of H2O2 (DSHP) from H2 and O2 has attracted most research interest because it relates to a facile, environmentally friendly, and economic process. Yolk–shell Pd-M@HCS (hollow carbon sphere) (M = Co, Ni, Cu) nanocatalysts, in which the bimetal nanoparticle is the core and porous carbon works as the shell layer, are reported in this work. It was found that catalytic activities were enhanced because of the introduced M metals. Additionally, the different mass ratios of Pd to Co (mPd/mCo) were further investigated to improve the catalytic performance for the DSHP. When mPd/mCo was 4.4, the prepared Pd-Co@HCS-(4.4) catalyst, with an average Pd nanoparticle size of 7.30 nm, provided the highest H2O2 selectivity of 87% and H2O2 productivity of 1996 mmolgPd−1·h−1, which were increased by 24% and 253%, respectively, compared to Pd@HCS. |
| doi_str_mv | 10.3390/catal10030303 |
| format | Article |
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The direct synthesis of H2O2 (DSHP) from H2 and O2 has attracted most research interest because it relates to a facile, environmentally friendly, and economic process. Yolk–shell Pd-M@HCS (hollow carbon sphere) (M = Co, Ni, Cu) nanocatalysts, in which the bimetal nanoparticle is the core and porous carbon works as the shell layer, are reported in this work. It was found that catalytic activities were enhanced because of the introduced M metals. Additionally, the different mass ratios of Pd to Co (mPd/mCo) were further investigated to improve the catalytic performance for the DSHP. When mPd/mCo was 4.4, the prepared Pd-Co@HCS-(4.4) catalyst, with an average Pd nanoparticle size of 7.30 nm, provided the highest H2O2 selectivity of 87% and H2O2 productivity of 1996 mmolgPd−1·h−1, which were increased by 24% and 253%, respectively, compared to Pd@HCS.</description><identifier>EISSN: 2073-4344</identifier><identifier>DOI: 10.3390/catal10030303</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Bimetals ; Carbon ; Catalysts ; Chemical reactions ; Chemical synthesis ; Cobalt ; Composite materials ; Copper ; Hydrogen peroxide ; Mass ratios ; Metals ; Microemulsions ; Morphology ; Nanoparticles ; Nickel ; Oxidizing agents ; Palladium ; Particle size ; Selectivity ; Solvents ; Surfactants</subject><ispartof>Catalysts, 2020-01, Vol.10 (3), p.303</ispartof><rights>2020. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). 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When mPd/mCo was 4.4, the prepared Pd-Co@HCS-(4.4) catalyst, with an average Pd nanoparticle size of 7.30 nm, provided the highest H2O2 selectivity of 87% and H2O2 productivity of 1996 mmolgPd−1·h−1, which were increased by 24% and 253%, respectively, compared to Pd@HCS.</description><subject>Bimetals</subject><subject>Carbon</subject><subject>Catalysts</subject><subject>Chemical reactions</subject><subject>Chemical synthesis</subject><subject>Cobalt</subject><subject>Composite materials</subject><subject>Copper</subject><subject>Hydrogen peroxide</subject><subject>Mass ratios</subject><subject>Metals</subject><subject>Microemulsions</subject><subject>Morphology</subject><subject>Nanoparticles</subject><subject>Nickel</subject><subject>Oxidizing agents</subject><subject>Palladium</subject><subject>Particle size</subject><subject>Selectivity</subject><subject>Solvents</subject><subject>Surfactants</subject><issn>2073-4344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNTrGKwkAQXQTBoJb2AzZ3EM_NTjxNYXPRw-a8A-1EZIkTspJkdXdTpLtPvxVs7G5eMY_3hveGsVHE3xATPs2kk2XEOd7RYYHgc5zEGMc9NrT2wv0kES6iWcB-d23tCrLKgs7hQJVUJVyNdpQ5Oh9fvmAJqQ5hq0JIm1f4UBX58FJlkN5bWussyPoM-4KUeWjOuz9kcm0qWWcEnsBKGR8JT3Ub8S0GrJvL0tLwsfts_Lnep5uJf-LWkHWni25M7a2TwPk75yLBBf7v6g_vaFNr</recordid><startdate>20200101</startdate><enddate>20200101</enddate><creator>Wang, Yaodan</creator><creator>Pan, Hongyan</creator><creator>Lin, Qian</creator><creator>Shi, Yongyong</creator><creator>Zhang, Jiesong</creator><general>MDPI AG</general><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></search><sort><creationdate>20200101</creationdate><title>Synthesis of [email protected](M = Co, Ni, Cu) Bimetallic Catalysts and Their Catalytic Performance for Direct Synthesis of H2O2</title><author>Wang, Yaodan ; 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The direct synthesis of H2O2 (DSHP) from H2 and O2 has attracted most research interest because it relates to a facile, environmentally friendly, and economic process. Yolk–shell Pd-M@HCS (hollow carbon sphere) (M = Co, Ni, Cu) nanocatalysts, in which the bimetal nanoparticle is the core and porous carbon works as the shell layer, are reported in this work. It was found that catalytic activities were enhanced because of the introduced M metals. Additionally, the different mass ratios of Pd to Co (mPd/mCo) were further investigated to improve the catalytic performance for the DSHP. When mPd/mCo was 4.4, the prepared Pd-Co@HCS-(4.4) catalyst, with an average Pd nanoparticle size of 7.30 nm, provided the highest H2O2 selectivity of 87% and H2O2 productivity of 1996 mmolgPd−1·h−1, which were increased by 24% and 253%, respectively, compared to Pd@HCS.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/catal10030303</doi><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; MDPI - Multidisciplinary Digital Publishing Institute |
| subjects | Bimetals Carbon Catalysts Chemical reactions Chemical synthesis Cobalt Composite materials Copper Hydrogen peroxide Mass ratios Metals Microemulsions Morphology Nanoparticles Nickel Oxidizing agents Palladium Particle size Selectivity Solvents Surfactants |
| title | Synthesis of [email protected](M = Co, Ni, Cu) Bimetallic Catalysts and Their Catalytic Performance for Direct Synthesis of H2O2 |
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