Pt Nanoparticles@Photoactive Metal–Organic Frameworks: Efficient Hydrogen Evolution via Synergistic Photoexcitation and Electron Injection
Pt nanoparticles of 2–3 nm and 5–6 nm in diameter were loaded into stable, porous, and phosphorescent metal–organic frameworks (MOFs 1 and 2) built from [Ir(ppy)2(bpy)]+-derived dicarboxylate ligands (L 1 and L 2 ) and Zr6(μ3-O)4(μ3-OH)4(carboxylate)12 secondary building units, via MOF-mediated phot...
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| Veröffentlicht in: | J. Am. Chem. Soc 2012-05, Vol.134 (17), p.7211-7214 |
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| container_title | J. Am. Chem. Soc |
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| creator | Wang, Cheng deKrafft, Kathryn E Lin, Wenbin |
| description | Pt nanoparticles of 2–3 nm and 5–6 nm in diameter were loaded into stable, porous, and phosphorescent metal–organic frameworks (MOFs 1 and 2) built from [Ir(ppy)2(bpy)]+-derived dicarboxylate ligands (L 1 and L 2 ) and Zr6(μ3-O)4(μ3-OH)4(carboxylate)12 secondary building units, via MOF-mediated photoreduction of K2PtCl4. The resulting Pt@MOF assemblies serve as effective photocatalysts for hydrogen evolution by synergistic photoexcitation of the MOF frameworks and electron injection into the Pt nanoparticles. Pt@2 gave a turnover number of 7000, approximately five times the value afforded by the homogeneous control, and could be readily recycled and reused. |
| doi_str_mv | 10.1021/ja300539p |
| format | Article |
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The resulting Pt@MOF assemblies serve as effective photocatalysts for hydrogen evolution by synergistic photoexcitation of the MOF frameworks and electron injection into the Pt nanoparticles. Pt@2 gave a turnover number of 7000, approximately five times the value afforded by the homogeneous control, and could be readily recycled and reused.</description><identifier>ISSN: 0002-7863</identifier><identifier>EISSN: 1520-5126</identifier><identifier>DOI: 10.1021/ja300539p</identifier><identifier>PMID: 22486151</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>catalysis (homogeneous), catalysis (heterogeneous), solar (photovoltaic), solar (fuels), photosynthesis (natural and artificial), hydrogen and fuel cells, electrodes - solar, charge transport, materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly)</subject><ispartof>J. Am. Chem. 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Am. Chem. Soc</title><addtitle>J. Am. Chem. Soc</addtitle><description>Pt nanoparticles of 2–3 nm and 5–6 nm in diameter were loaded into stable, porous, and phosphorescent metal–organic frameworks (MOFs 1 and 2) built from [Ir(ppy)2(bpy)]+-derived dicarboxylate ligands (L 1 and L 2 ) and Zr6(μ3-O)4(μ3-OH)4(carboxylate)12 secondary building units, via MOF-mediated photoreduction of K2PtCl4. The resulting Pt@MOF assemblies serve as effective photocatalysts for hydrogen evolution by synergistic photoexcitation of the MOF frameworks and electron injection into the Pt nanoparticles. Pt@2 gave a turnover number of 7000, approximately five times the value afforded by the homogeneous control, and could be readily recycled and reused.</description><subject>catalysis (homogeneous), catalysis (heterogeneous), solar (photovoltaic), solar (fuels), photosynthesis (natural and artificial), hydrogen and fuel cells, electrodes - solar, charge transport, materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly)</subject><issn>0002-7863</issn><issn>1520-5126</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNptkc1u1DAUhS1URKeFBS9QWUhIdJFiO7HHYQWqprRSSysB6-jGuZl6yNiD7UyZHQ_QHW_Ik2A6bVdd3b9PR0f3EPKasyPOBH-_gJIxWdarZ2TCpWCF5ELtkAljTBRTrcpdshfjIo-V0PwF2RWi0opLPiG3V4l-AedXEJI1A8aPV9c-eTDJrpFeYILh7-8_l2EOzhp6EmCJNz78iB_orO-tsegSPd10wc_R0dnaD2Oy3tG1Bfp14zDMbcy69E4Ufxmb4O4OrqOzAU0KeThzi9zl9UvyvIch4qv7uk--n8y-HZ8W55efz44_nRdQMZ2KClBpU7coDHaiFdBOmWqFkFpVrep7IxhIyduqn3Kpa5UvwOtOM9mBLHtW7pM3W12fzTUxu0Jzbbxz2UbDmc7fUxl6t4VWwf8cMaZmaaPBYQCHfoyZ45xPKyXqjB5uURN8jAH7ZhXsEsImQ83_hJrHhDJ7cC87tkvsHsmHSDLwdguAic3Cj8HlVzwh9A_UiJq4</recordid><startdate>20120502</startdate><enddate>20120502</enddate><creator>Wang, Cheng</creator><creator>deKrafft, Kathryn E</creator><creator>Lin, Wenbin</creator><general>American Chemical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20120502</creationdate><title>Pt Nanoparticles@Photoactive Metal–Organic Frameworks: Efficient Hydrogen Evolution via Synergistic Photoexcitation and Electron Injection</title><author>Wang, Cheng ; deKrafft, Kathryn E ; Lin, Wenbin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a408t-4ae68c9be2ced2b2ab706b225864b6ffc20a551b4f715896225a19d805da53f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>catalysis (homogeneous), catalysis (heterogeneous), solar (photovoltaic), solar (fuels), photosynthesis (natural and artificial), hydrogen and fuel cells, electrodes - solar, charge transport, materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Cheng</creatorcontrib><creatorcontrib>deKrafft, Kathryn E</creatorcontrib><creatorcontrib>Lin, Wenbin</creatorcontrib><creatorcontrib>Energy Frontier Research Centers (EFRC)</creatorcontrib><creatorcontrib>Center for Solar Fuels (UNC EFRC)</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>J. Am. Chem. Soc</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Cheng</au><au>deKrafft, Kathryn E</au><au>Lin, Wenbin</au><aucorp>Energy Frontier Research Centers (EFRC)</aucorp><aucorp>Center for Solar Fuels (UNC EFRC)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pt Nanoparticles@Photoactive Metal–Organic Frameworks: Efficient Hydrogen Evolution via Synergistic Photoexcitation and Electron Injection</atitle><jtitle>J. Am. Chem. Soc</jtitle><addtitle>J. Am. Chem. Soc</addtitle><date>2012-05-02</date><risdate>2012</risdate><volume>134</volume><issue>17</issue><spage>7211</spage><epage>7214</epage><pages>7211-7214</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><abstract>Pt nanoparticles of 2–3 nm and 5–6 nm in diameter were loaded into stable, porous, and phosphorescent metal–organic frameworks (MOFs 1 and 2) built from [Ir(ppy)2(bpy)]+-derived dicarboxylate ligands (L 1 and L 2 ) and Zr6(μ3-O)4(μ3-OH)4(carboxylate)12 secondary building units, via MOF-mediated photoreduction of K2PtCl4. The resulting Pt@MOF assemblies serve as effective photocatalysts for hydrogen evolution by synergistic photoexcitation of the MOF frameworks and electron injection into the Pt nanoparticles. Pt@2 gave a turnover number of 7000, approximately five times the value afforded by the homogeneous control, and could be readily recycled and reused.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>22486151</pmid><doi>10.1021/ja300539p</doi><tpages>4</tpages></addata></record> |
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| source | ACS Publications |
| subjects | catalysis (homogeneous), catalysis (heterogeneous), solar (photovoltaic), solar (fuels), photosynthesis (natural and artificial), hydrogen and fuel cells, electrodes - solar, charge transport, materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly) |
| title | Pt Nanoparticles@Photoactive Metal–Organic Frameworks: Efficient Hydrogen Evolution via Synergistic Photoexcitation and Electron Injection |
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