In Situ Encapsulated Pt Nanoparticles Dispersed in Low Temperature Oxygen for Partial Oxidation of Methane to Syngas
Highly dispersed ultra-small Pt nanoparticles limited in nanosized silicalite-1 zeolite were prepared by in situ encapsulation strategy using H2PtCl6·6H2O as a precursor and tetrapropylammonium hydroxide as a template. The prepared Pt@S-1 catalyst was characterized by X-ray diffraction (XRD), induct...
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| Veröffentlicht in: | Catalysts 2019-09, Vol.9 (9), p.720 |
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| creator | Wang, Junwen Ma, Lichao Ding, Chuanmin Xue, Yanan Zhang, Yongkang Gao, Zhiting |
| description | Highly dispersed ultra-small Pt nanoparticles limited in nanosized silicalite-1 zeolite were prepared by in situ encapsulation strategy using H2PtCl6·6H2O as a precursor and tetrapropylammonium hydroxide as a template. The prepared Pt@S-1 catalyst was characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), N2 adsorption-desorption, CO adsorption, and TGA techniques and exhibited unmatched catalytic activity and sintering resistance in the partial oxidation of methane to syngas. Strikingly, Pt@S-1 catalyst with further reduced size and increased dispersibility of Pt nanoparticles showed enhanced catalytic activity after low-temperature oxygen calcination. However, for Pt/S-1 catalyst, low-temperature oxygen calcination did not improve its catalytic activity. |
| doi_str_mv | 10.3390/catal9090720 |
| format | Article |
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The prepared Pt@S-1 catalyst was characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), N2 adsorption-desorption, CO adsorption, and TGA techniques and exhibited unmatched catalytic activity and sintering resistance in the partial oxidation of methane to syngas. Strikingly, Pt@S-1 catalyst with further reduced size and increased dispersibility of Pt nanoparticles showed enhanced catalytic activity after low-temperature oxygen calcination. However, for Pt/S-1 catalyst, low-temperature oxygen calcination did not improve its catalytic activity.</description><identifier>ISSN: 2073-4344</identifier><identifier>EISSN: 2073-4344</identifier><identifier>DOI: 10.3390/catal9090720</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Adsorption ; Catalysts ; Catalytic activity ; Chemical reactions ; Dispersion ; Encapsulation ; Inductively coupled plasma ; Low temperature ; Metals ; Methane ; Morphology ; Nanoparticles ; Oxidation resistance ; Oxygen ; Particle size ; Roasting ; Scanning transmission electron microscopy ; Silicalite ; Sintering ; Synthesis gas ; Transmission electron microscopy ; Zeolites</subject><ispartof>Catalysts, 2019-09, Vol.9 (9), p.720</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. 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However, for Pt/S-1 catalyst, low-temperature oxygen calcination did not improve its catalytic activity.</description><subject>Adsorption</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Chemical reactions</subject><subject>Dispersion</subject><subject>Encapsulation</subject><subject>Inductively coupled plasma</subject><subject>Low temperature</subject><subject>Metals</subject><subject>Methane</subject><subject>Morphology</subject><subject>Nanoparticles</subject><subject>Oxidation resistance</subject><subject>Oxygen</subject><subject>Particle size</subject><subject>Roasting</subject><subject>Scanning transmission electron microscopy</subject><subject>Silicalite</subject><subject>Sintering</subject><subject>Synthesis gas</subject><subject>Transmission electron microscopy</subject><subject>Zeolites</subject><issn>2073-4344</issn><issn>2073-4344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpNUE1PAjEUbIwmEuTmD2jiVbTd7lePBlFJUEjA8-ZtecUlS7u23Sj_3hI8MJc3mTfzXjKE3HL2IIRkjwoCtJJJViTsggwSVohxKtL08oxfk5H3OxYhuSh5NiBhZuiqCT2dGgWd71sIuKHLQD_A2A5caFSLnj43vkPn46oxdG5_6Br3UYDQO6SL38MWDdXW0eUxAW2Umg2ExhpqNX3H8AUGabB0dTBb8DfkSkPrcfQ_h-TzZbqevI3ni9fZ5Gk-VoLxME5YnpSiThRmEbmOrAapixrzVJY500JJqFFIDjGQoFSMpxtdlGlWgGIohuTudLdz9rtHH6qd7Z2JL6skS4uMZ3mRRNf9yaWc9d6hrjrX7MEdKs6qY7XVebXiDyTHbVs</recordid><startdate>20190901</startdate><enddate>20190901</enddate><creator>Wang, Junwen</creator><creator>Ma, Lichao</creator><creator>Ding, Chuanmin</creator><creator>Xue, Yanan</creator><creator>Zhang, Yongkang</creator><creator>Gao, Zhiting</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></search><sort><creationdate>20190901</creationdate><title>In Situ Encapsulated Pt Nanoparticles Dispersed in Low Temperature Oxygen for Partial Oxidation of Methane to Syngas</title><author>Wang, Junwen ; 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The prepared Pt@S-1 catalyst was characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), N2 adsorption-desorption, CO adsorption, and TGA techniques and exhibited unmatched catalytic activity and sintering resistance in the partial oxidation of methane to syngas. Strikingly, Pt@S-1 catalyst with further reduced size and increased dispersibility of Pt nanoparticles showed enhanced catalytic activity after low-temperature oxygen calcination. However, for Pt/S-1 catalyst, low-temperature oxygen calcination did not improve its catalytic activity.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/catal9090720</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Adsorption Catalysts Catalytic activity Chemical reactions Dispersion Encapsulation Inductively coupled plasma Low temperature Metals Methane Morphology Nanoparticles Oxidation resistance Oxygen Particle size Roasting Scanning transmission electron microscopy Silicalite Sintering Synthesis gas Transmission electron microscopy Zeolites |
| title | In Situ Encapsulated Pt Nanoparticles Dispersed in Low Temperature Oxygen for Partial Oxidation of Methane to Syngas |
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