Pt Particles Functionalized on the Molecular Level as New Nanocomposite Materials for Electrocatalysis
A nanocomposite material consisting of platinum nanoparticles surrounded by an ionic conducting polymer dispersed on carbon Vulcan XC72 was synthesized. The aim of this nanocomposite material is to translate the triple-phase boundary to a molecular level in electrochemical systems involving a polyme...
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| Veröffentlicht in: | Langmuir 2012-12, Vol.28 (51), p.17832-17840 |
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| creator | Ferrandez, Anne-Claire Baranton, Stève Bigarré, Janick Buvat, Pierrick Coutanceau, Christophe |
| description | A nanocomposite material consisting of platinum nanoparticles surrounded by an ionic conducting polymer dispersed on carbon Vulcan XC72 was synthesized. The aim of this nanocomposite material is to translate the triple-phase boundary to a molecular level in electrochemical systems involving a polymer electrolyte. The ionic conducting polymer is a poly(styrenesulfonic acid) (PSSA, or PSSNa in its sodium form) synthesized by atom-transfer radical polymerization. The polymer has a terminal thiol group to ensure bonding with platinum nanoparticles. The nanocomposite material (Pt-PSSA/C) exhibited thermal stability up to 160 °C and electrochemical stability up to 1 V versus RHE. Compared to a Pt/C catalyst, the nanocomposite catalyst has a lower active surface area but comparable catalytic activity for the oxygen reduction reaction. Furthermore, this nanocomposite material exhibits similar behavior in a fuel cell active layer without Nafion as a classical Pt/C catalyst with Nafion included in the active layer. |
| doi_str_mv | 10.1021/la303588t |
| format | Article |
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The aim of this nanocomposite material is to translate the triple-phase boundary to a molecular level in electrochemical systems involving a polymer electrolyte. The ionic conducting polymer is a poly(styrenesulfonic acid) (PSSA, or PSSNa in its sodium form) synthesized by atom-transfer radical polymerization. The polymer has a terminal thiol group to ensure bonding with platinum nanoparticles. The nanocomposite material (Pt-PSSA/C) exhibited thermal stability up to 160 °C and electrochemical stability up to 1 V versus RHE. Compared to a Pt/C catalyst, the nanocomposite catalyst has a lower active surface area but comparable catalytic activity for the oxygen reduction reaction. 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Electrokinetic phenomena ; Theory of reactions, general kinetics. Catalysis. 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The aim of this nanocomposite material is to translate the triple-phase boundary to a molecular level in electrochemical systems involving a polymer electrolyte. The ionic conducting polymer is a poly(styrenesulfonic acid) (PSSA, or PSSNa in its sodium form) synthesized by atom-transfer radical polymerization. The polymer has a terminal thiol group to ensure bonding with platinum nanoparticles. The nanocomposite material (Pt-PSSA/C) exhibited thermal stability up to 160 °C and electrochemical stability up to 1 V versus RHE. Compared to a Pt/C catalyst, the nanocomposite catalyst has a lower active surface area but comparable catalytic activity for the oxygen reduction reaction. Furthermore, this nanocomposite material exhibits similar behavior in a fuel cell active layer without Nafion as a classical Pt/C catalyst with Nafion included in the active layer.</description><subject>Applied sciences</subject><subject>Catalysis</subject><subject>Chemical Sciences</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Electrochemistry</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Fuel cells</subject><subject>General and physical chemistry</subject><subject>Kinetics and mechanism of reactions</subject><subject>Organic chemistry</subject><subject>Other</subject><subject>Physical and chemical studies. Granulometry. Electrokinetic phenomena</subject><subject>Theory of reactions, general kinetics. Catalysis. 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Thermal use of fuels</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><topic>General and physical chemistry</topic><topic>Kinetics and mechanism of reactions</topic><topic>Organic chemistry</topic><topic>Other</topic><topic>Physical and chemical studies. Granulometry. Electrokinetic phenomena</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ferrandez, Anne-Claire</creatorcontrib><creatorcontrib>Baranton, Stève</creatorcontrib><creatorcontrib>Bigarré, Janick</creatorcontrib><creatorcontrib>Buvat, Pierrick</creatorcontrib><creatorcontrib>Coutanceau, Christophe</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Langmuir</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ferrandez, Anne-Claire</au><au>Baranton, Stève</au><au>Bigarré, Janick</au><au>Buvat, Pierrick</au><au>Coutanceau, Christophe</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pt Particles Functionalized on the Molecular Level as New Nanocomposite Materials for Electrocatalysis</atitle><jtitle>Langmuir</jtitle><addtitle>Langmuir</addtitle><date>2012-12-21</date><risdate>2012</risdate><volume>28</volume><issue>51</issue><spage>17832</spage><epage>17840</epage><pages>17832-17840</pages><issn>0743-7463</issn><eissn>1520-5827</eissn><coden>LANGD5</coden><abstract>A nanocomposite material consisting of platinum nanoparticles surrounded by an ionic conducting polymer dispersed on carbon Vulcan XC72 was synthesized. The aim of this nanocomposite material is to translate the triple-phase boundary to a molecular level in electrochemical systems involving a polymer electrolyte. The ionic conducting polymer is a poly(styrenesulfonic acid) (PSSA, or PSSNa in its sodium form) synthesized by atom-transfer radical polymerization. The polymer has a terminal thiol group to ensure bonding with platinum nanoparticles. The nanocomposite material (Pt-PSSA/C) exhibited thermal stability up to 160 °C and electrochemical stability up to 1 V versus RHE. Compared to a Pt/C catalyst, the nanocomposite catalyst has a lower active surface area but comparable catalytic activity for the oxygen reduction reaction. 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| source | ACS Publications |
| subjects | Applied sciences Catalysis Chemical Sciences Chemistry Colloidal state and disperse state Electrochemistry Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells General and physical chemistry Kinetics and mechanism of reactions Organic chemistry Other Physical and chemical studies. Granulometry. Electrokinetic phenomena Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | Pt Particles Functionalized on the Molecular Level as New Nanocomposite Materials for Electrocatalysis |
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