A Facile Synthesis of MPd (M = Co, Cu) Nanoparticles and Their Catalysis for Formic Acid Oxidation
Monodisperse CoPd nanoparticles (NPs) were synthesized and studied for catalytic formic acid (HCOOH) oxidation (FAO). The NPs were prepared by coreduction of Co(acac)2 (acac = acetylacetonate) and PdBr2 at 260 °C in oleylamine and trioctylphosphine, and their sizes (5–12 nm) and compositions (Co10Pd...
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| Veröffentlicht in: | Nano letters 2012-02, Vol.12 (2), p.1102-1106 |
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| creator | Mazumder, Vismadeb Chi, Miaofang Mankin, Max N Liu, Yi Metin, Önder Sun, Daohua More, Karren L Sun, Shouheng |
| description | Monodisperse CoPd nanoparticles (NPs) were synthesized and studied for catalytic formic acid (HCOOH) oxidation (FAO). The NPs were prepared by coreduction of Co(acac)2 (acac = acetylacetonate) and PdBr2 at 260 °C in oleylamine and trioctylphosphine, and their sizes (5–12 nm) and compositions (Co10Pd90 to Co60Pd40) were controlled by heating ramp rate, metal salt concentration, or metal molar ratios. The 8 nm CoPd NPs were activated for HCOOH oxidation by a simple ethanol wash. In 0.1 M HClO4 and 2 M HCOOH solution, their catalytic activities followed the trend of Co50Pd50 > Co60Pd40 > Co10Pd90 > Pd. The Co50Pd50 NPs had an oxidation peak at 0.4 V with a peak current density of 774 A/gPd. As a comparison, commercial Pd catalysts showed an oxidation peak at 0.75 V with peak current density of only 254 A/gPd. The synthesis procedure could also be extended to prepare CuPd NPs when Co(acac)2 was replaced by Cu(ac)2 (ac = acetate) in an otherwise identical condition. The CuPd NPs were less active catalysts than CoPd or even Pd for FAO in HClO4 solution. The synthesis provides a general approach to Pd-based bimetallic NPs and will enable further investigation of Pd-based alloy NPs for electro-oxidation and other catalytic reactions. |
| doi_str_mv | 10.1021/nl2045588 |
| format | Article |
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(ORNL), Oak Ridge, TN (United States)</creatorcontrib><description>Monodisperse CoPd nanoparticles (NPs) were synthesized and studied for catalytic formic acid (HCOOH) oxidation (FAO). The NPs were prepared by coreduction of Co(acac)2 (acac = acetylacetonate) and PdBr2 at 260 °C in oleylamine and trioctylphosphine, and their sizes (5–12 nm) and compositions (Co10Pd90 to Co60Pd40) were controlled by heating ramp rate, metal salt concentration, or metal molar ratios. The 8 nm CoPd NPs were activated for HCOOH oxidation by a simple ethanol wash. In 0.1 M HClO4 and 2 M HCOOH solution, their catalytic activities followed the trend of Co50Pd50 > Co60Pd40 > Co10Pd90 > Pd. The Co50Pd50 NPs had an oxidation peak at 0.4 V with a peak current density of 774 A/gPd. As a comparison, commercial Pd catalysts showed an oxidation peak at 0.75 V with peak current density of only 254 A/gPd. The synthesis procedure could also be extended to prepare CuPd NPs when Co(acac)2 was replaced by Cu(ac)2 (ac = acetate) in an otherwise identical condition. The CuPd NPs were less active catalysts than CoPd or even Pd for FAO in HClO4 solution. The synthesis provides a general approach to Pd-based bimetallic NPs and will enable further investigation of Pd-based alloy NPs for electro-oxidation and other catalytic reactions.</description><identifier>ISSN: 1530-6984</identifier><identifier>EISSN: 1530-6992</identifier><identifier>DOI: 10.1021/nl2045588</identifier><identifier>PMID: 22276672</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Acetates ; ALLOYS ; Alloys - chemical synthesis ; Alloys - chemistry ; CATALYSIS ; CATALYSTS ; Catalysts: preparations and properties ; Chemistry ; Cobalt - chemistry ; Copper - chemistry ; CURRENT DENSITY ; ETHANOL ; Exact sciences and technology ; Formates - chemistry ; FORMIC ACID ; General and physical chemistry ; HEATING ; Metal Nanoparticles - chemistry ; Nanoparticles ; NANOSCIENCE AND NANOTECHNOLOGY ; OXIDATION ; Oxidation-Reduction ; Palladium ; Palladium - chemistry ; Particle Size ; Surface Properties ; SYNTHESIS ; Theory of reactions, general kinetics. 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(ORNL), Oak Ridge, TN (United States)</creatorcontrib><title>A Facile Synthesis of MPd (M = Co, Cu) Nanoparticles and Their Catalysis for Formic Acid Oxidation</title><title>Nano letters</title><addtitle>Nano Lett</addtitle><description>Monodisperse CoPd nanoparticles (NPs) were synthesized and studied for catalytic formic acid (HCOOH) oxidation (FAO). The NPs were prepared by coreduction of Co(acac)2 (acac = acetylacetonate) and PdBr2 at 260 °C in oleylamine and trioctylphosphine, and their sizes (5–12 nm) and compositions (Co10Pd90 to Co60Pd40) were controlled by heating ramp rate, metal salt concentration, or metal molar ratios. The 8 nm CoPd NPs were activated for HCOOH oxidation by a simple ethanol wash. In 0.1 M HClO4 and 2 M HCOOH solution, their catalytic activities followed the trend of Co50Pd50 > Co60Pd40 > Co10Pd90 > Pd. The Co50Pd50 NPs had an oxidation peak at 0.4 V with a peak current density of 774 A/gPd. As a comparison, commercial Pd catalysts showed an oxidation peak at 0.75 V with peak current density of only 254 A/gPd. The synthesis procedure could also be extended to prepare CuPd NPs when Co(acac)2 was replaced by Cu(ac)2 (ac = acetate) in an otherwise identical condition. The CuPd NPs were less active catalysts than CoPd or even Pd for FAO in HClO4 solution. The synthesis provides a general approach to Pd-based bimetallic NPs and will enable further investigation of Pd-based alloy NPs for electro-oxidation and other catalytic reactions.</description><subject>Acetates</subject><subject>ALLOYS</subject><subject>Alloys - chemical synthesis</subject><subject>Alloys - chemistry</subject><subject>CATALYSIS</subject><subject>CATALYSTS</subject><subject>Catalysts: preparations and properties</subject><subject>Chemistry</subject><subject>Cobalt - chemistry</subject><subject>Copper - chemistry</subject><subject>CURRENT DENSITY</subject><subject>ETHANOL</subject><subject>Exact sciences and technology</subject><subject>Formates - chemistry</subject><subject>FORMIC ACID</subject><subject>General and physical chemistry</subject><subject>HEATING</subject><subject>Metal Nanoparticles - chemistry</subject><subject>Nanoparticles</subject><subject>NANOSCIENCE AND NANOTECHNOLOGY</subject><subject>OXIDATION</subject><subject>Oxidation-Reduction</subject><subject>Palladium</subject><subject>Palladium - chemistry</subject><subject>Particle Size</subject><subject>Surface Properties</subject><subject>SYNTHESIS</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><issn>1530-6984</issn><issn>1530-6992</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp90UuLFDEQB_AgivvQg19AgiC7C47m0XkdPAyNo8KuK7iem-okzWTpScYkDc63t5cZZy_iqXL4pYqqP0KvKHlPCaMf4shII4TWT9ApFZwspDHs6fGtmxN0Vso9IcRwQZ6jE8aYklKxU9Qv8QpsGD3-sYt17UsoOA345rvDlzf4I27TO9xOV_gbxLSFXIMdfcEQHb5b-5BxCxXG3cOvIWW8SnkTLF7a4PDt7-CghhRfoGcDjMW_PNRz9HP16a79sri-_fy1XV4voCFNXXjlHGG9U555obzg3DXgheNEGaFZz6wzjbWaain7QdrBQN8z0PN6hHI68HP0Zt83lRq6YkP1dm1TjN7WjpLGaMlndLFH25x-Tb7UbhOK9eMI0aepdIYRpYURapaX_5VUSUYEkVzO9GpPbU6lZD902xw2kHfz2O4hoe6Y0GxfH9pO_ca7o_wbyQzeHgAUC-OQIdpQHp2QTGrDHx3Y0t2nKcf5uP8Y-AfiR6CC</recordid><startdate>20120208</startdate><enddate>20120208</enddate><creator>Mazumder, Vismadeb</creator><creator>Chi, Miaofang</creator><creator>Mankin, Max N</creator><creator>Liu, Yi</creator><creator>Metin, Önder</creator><creator>Sun, Daohua</creator><creator>More, Karren L</creator><creator>Sun, Shouheng</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20120208</creationdate><title>A Facile Synthesis of MPd (M = Co, Cu) Nanoparticles and Their Catalysis for Formic Acid Oxidation</title><author>Mazumder, Vismadeb ; Chi, Miaofang ; Mankin, Max N ; Liu, Yi ; Metin, Önder ; Sun, Daohua ; More, Karren L ; Sun, Shouheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a404t-e7dd02bd7e2e57e533d4ae5d3079582b2cd94cc81866bf6cf9abb2a89840131f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Acetates</topic><topic>ALLOYS</topic><topic>Alloys - chemical synthesis</topic><topic>Alloys - chemistry</topic><topic>CATALYSIS</topic><topic>CATALYSTS</topic><topic>Catalysts: preparations and properties</topic><topic>Chemistry</topic><topic>Cobalt - chemistry</topic><topic>Copper - chemistry</topic><topic>CURRENT DENSITY</topic><topic>ETHANOL</topic><topic>Exact sciences and technology</topic><topic>Formates - chemistry</topic><topic>FORMIC ACID</topic><topic>General and physical chemistry</topic><topic>HEATING</topic><topic>Metal Nanoparticles - chemistry</topic><topic>Nanoparticles</topic><topic>NANOSCIENCE AND NANOTECHNOLOGY</topic><topic>OXIDATION</topic><topic>Oxidation-Reduction</topic><topic>Palladium</topic><topic>Palladium - chemistry</topic><topic>Particle Size</topic><topic>Surface Properties</topic><topic>SYNTHESIS</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mazumder, Vismadeb</creatorcontrib><creatorcontrib>Chi, Miaofang</creatorcontrib><creatorcontrib>Mankin, Max N</creatorcontrib><creatorcontrib>Liu, Yi</creatorcontrib><creatorcontrib>Metin, Önder</creatorcontrib><creatorcontrib>Sun, Daohua</creatorcontrib><creatorcontrib>More, Karren L</creatorcontrib><creatorcontrib>Sun, Shouheng</creatorcontrib><creatorcontrib>Shared Research Equipment Collaborative Research Center</creatorcontrib><creatorcontrib>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Nano letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mazumder, Vismadeb</au><au>Chi, Miaofang</au><au>Mankin, Max N</au><au>Liu, Yi</au><au>Metin, Önder</au><au>Sun, Daohua</au><au>More, Karren L</au><au>Sun, Shouheng</au><aucorp>Shared Research Equipment Collaborative Research Center</aucorp><aucorp>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Facile Synthesis of MPd (M = Co, Cu) Nanoparticles and Their Catalysis for Formic Acid Oxidation</atitle><jtitle>Nano letters</jtitle><addtitle>Nano Lett</addtitle><date>2012-02-08</date><risdate>2012</risdate><volume>12</volume><issue>2</issue><spage>1102</spage><epage>1106</epage><pages>1102-1106</pages><issn>1530-6984</issn><eissn>1530-6992</eissn><abstract>Monodisperse CoPd nanoparticles (NPs) were synthesized and studied for catalytic formic acid (HCOOH) oxidation (FAO). The NPs were prepared by coreduction of Co(acac)2 (acac = acetylacetonate) and PdBr2 at 260 °C in oleylamine and trioctylphosphine, and their sizes (5–12 nm) and compositions (Co10Pd90 to Co60Pd40) were controlled by heating ramp rate, metal salt concentration, or metal molar ratios. The 8 nm CoPd NPs were activated for HCOOH oxidation by a simple ethanol wash. In 0.1 M HClO4 and 2 M HCOOH solution, their catalytic activities followed the trend of Co50Pd50 > Co60Pd40 > Co10Pd90 > Pd. The Co50Pd50 NPs had an oxidation peak at 0.4 V with a peak current density of 774 A/gPd. As a comparison, commercial Pd catalysts showed an oxidation peak at 0.75 V with peak current density of only 254 A/gPd. The synthesis procedure could also be extended to prepare CuPd NPs when Co(acac)2 was replaced by Cu(ac)2 (ac = acetate) in an otherwise identical condition. The CuPd NPs were less active catalysts than CoPd or even Pd for FAO in HClO4 solution. The synthesis provides a general approach to Pd-based bimetallic NPs and will enable further investigation of Pd-based alloy NPs for electro-oxidation and other catalytic reactions.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>22276672</pmid><doi>10.1021/nl2045588</doi><tpages>5</tpages></addata></record> |
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| ispartof | Nano letters, 2012-02, Vol.12 (2), p.1102-1106 |
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| source | MEDLINE; ACS Publications |
| subjects | Acetates ALLOYS Alloys - chemical synthesis Alloys - chemistry CATALYSIS CATALYSTS Catalysts: preparations and properties Chemistry Cobalt - chemistry Copper - chemistry CURRENT DENSITY ETHANOL Exact sciences and technology Formates - chemistry FORMIC ACID General and physical chemistry HEATING Metal Nanoparticles - chemistry Nanoparticles NANOSCIENCE AND NANOTECHNOLOGY OXIDATION Oxidation-Reduction Palladium Palladium - chemistry Particle Size Surface Properties SYNTHESIS Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | A Facile Synthesis of MPd (M = Co, Cu) Nanoparticles and Their Catalysis for Formic Acid Oxidation |
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