Perfluorosulfonic acid ionomer – silica composite membranes prepared using hyperbranched polyethoxysiloxane for polymer electrolyte membrane fuel cells
We report on the preparation and characterization of perfluorosulfonic acid ionomer (PFSA) – silica composite membranes using hyperbranched polyethoxysiloxane (PEOS) as silica precursor. The membranes were formed via an in situ sol–gel process of PEOS in a PFSA solution and subsequent solution casti...
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| Veröffentlicht in: | International journal of hydrogen energy 2012-10, Vol.37 (19), p.14454-14462 |
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| container_title | International journal of hydrogen energy |
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| creator | Horvat, Carmen I. Zhu, Xiaomin Türp, David Vinokur, Rostislav A. Demco, Dan E. Fechete, Radu Conradi, Oliver Graichen, Andreas Anokhin, Denis Ivanov, Dimitri A. Möller, Martin |
| description | We report on the preparation and characterization of perfluorosulfonic acid ionomer (PFSA) – silica composite membranes using hyperbranched polyethoxysiloxane (PEOS) as silica precursor. The membranes were formed via an in situ sol–gel process of PEOS in a PFSA solution and subsequent solution casting. Transmission electron microscopy and small-angle X-ray scattering data showed that at low silica content ultra-small silica particles with a size smaller than the diameter of the ionic channels were homogeneously dispersed in the PFSA matrix. Such morphology leads to enhanced proton mobility as probed by impedance spectroscopy and 1H solid-state NMR, and eventually resulted in the improvement of fuel cell performance.
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► PFSA/silica composite membranes: morphology versus performance. ► In situ sol–gel process using hyperbranched polyethoxysiloxane as silica precursor. ► Homogeneous distribution of ultrasmall silica particles in the polymer matrix. ► Enhanced proton mobility and improved fuel cell performance at low silica content. |
| doi_str_mv | 10.1016/j.ijhydene.2012.07.014 |
| format | Article |
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► PFSA/silica composite membranes: morphology versus performance. ► In situ sol–gel process using hyperbranched polyethoxysiloxane as silica precursor. ► Homogeneous distribution of ultrasmall silica particles in the polymer matrix. ► Enhanced proton mobility and improved fuel cell performance at low silica content.</description><identifier>ISSN: 0360-3199</identifier><identifier>EISSN: 1879-3487</identifier><identifier>DOI: 10.1016/j.ijhydene.2012.07.014</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Channels ; Chemical Sciences ; Perfluorosulfonic acid ; Polyethoxysiloxane ; Polymer electrolyte membrane fuel cells ; Polymers ; Proton exchange membrane ; Silica ; Sol–gel process</subject><ispartof>International journal of hydrogen energy, 2012-10, Vol.37 (19), p.14454-14462</ispartof><rights>2012 Hydrogen Energy Publications, LLC.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c486t-9d7a472f8fc9cd618539fd7408b791a7300561d084e6c2e6f87a0a15ef23cf3a3</citedby><cites>FETCH-LOGICAL-c486t-9d7a472f8fc9cd618539fd7408b791a7300561d084e6c2e6f87a0a15ef23cf3a3</cites><orcidid>0000-0002-5905-2652</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0360319912015893$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://hal.science/hal-04274503$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Horvat, Carmen I.</creatorcontrib><creatorcontrib>Zhu, Xiaomin</creatorcontrib><creatorcontrib>Türp, David</creatorcontrib><creatorcontrib>Vinokur, Rostislav A.</creatorcontrib><creatorcontrib>Demco, Dan E.</creatorcontrib><creatorcontrib>Fechete, Radu</creatorcontrib><creatorcontrib>Conradi, Oliver</creatorcontrib><creatorcontrib>Graichen, Andreas</creatorcontrib><creatorcontrib>Anokhin, Denis</creatorcontrib><creatorcontrib>Ivanov, Dimitri A.</creatorcontrib><creatorcontrib>Möller, Martin</creatorcontrib><title>Perfluorosulfonic acid ionomer – silica composite membranes prepared using hyperbranched polyethoxysiloxane for polymer electrolyte membrane fuel cells</title><title>International journal of hydrogen energy</title><description>We report on the preparation and characterization of perfluorosulfonic acid ionomer (PFSA) – silica composite membranes using hyperbranched polyethoxysiloxane (PEOS) as silica precursor. The membranes were formed via an in situ sol–gel process of PEOS in a PFSA solution and subsequent solution casting. Transmission electron microscopy and small-angle X-ray scattering data showed that at low silica content ultra-small silica particles with a size smaller than the diameter of the ionic channels were homogeneously dispersed in the PFSA matrix. Such morphology leads to enhanced proton mobility as probed by impedance spectroscopy and 1H solid-state NMR, and eventually resulted in the improvement of fuel cell performance.
[Display omitted]
► PFSA/silica composite membranes: morphology versus performance. ► In situ sol–gel process using hyperbranched polyethoxysiloxane as silica precursor. ► Homogeneous distribution of ultrasmall silica particles in the polymer matrix. ► Enhanced proton mobility and improved fuel cell performance at low silica content.</description><subject>Channels</subject><subject>Chemical Sciences</subject><subject>Perfluorosulfonic acid</subject><subject>Polyethoxysiloxane</subject><subject>Polymer electrolyte membrane fuel cells</subject><subject>Polymers</subject><subject>Proton exchange membrane</subject><subject>Silica</subject><subject>Sol–gel process</subject><issn>0360-3199</issn><issn>1879-3487</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkcGO1SAUhhujidfRVzAsddF6KLS0OycTxzG5iS50TRg4WG5oqdBOpjvfwZWv55NIvWrcuSL8_P-Xw_mL4jmFigJtX50qdxo2gxNWNdC6AlEB5Q-KA-1EXzLeiYfFAVgLJaN9_7h4ktIJgArg_aH4_gGj9WuIIa3ehslporQzxIUpjBjJj6_fSHLeaUV0GOeQ3IJkxPE2qgkTmSPOKqIha3LTZzJsM8b9SQ9Zm4PfcBnC_ZYJ4T4HiA3xl7yj0aNeYr78QyR2RU80ep-eFo-s8gmf_T4vik_Xbz5e3ZTH92_fXV0eS827dil7IxQXte2s7rVpadew3hrBobsVPVWCATQtNdBxbHWNre2EAkUbtDXTlil2Ubw8cwfl5RzdqOImg3Ly5vIodw14LXgD7I5m74uzd47hy4ppkaNL-7R59LAmSSlrG8Y4263t2arzalNE-5dNQe69yZP805vce5MgZO4tB1-fg5g_fecwyqQdThqNi3lh0gT3P8RPDlaqMQ</recordid><startdate>20121001</startdate><enddate>20121001</enddate><creator>Horvat, Carmen I.</creator><creator>Zhu, Xiaomin</creator><creator>Türp, David</creator><creator>Vinokur, Rostislav A.</creator><creator>Demco, Dan E.</creator><creator>Fechete, Radu</creator><creator>Conradi, Oliver</creator><creator>Graichen, Andreas</creator><creator>Anokhin, Denis</creator><creator>Ivanov, Dimitri A.</creator><creator>Möller, Martin</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-5905-2652</orcidid></search><sort><creationdate>20121001</creationdate><title>Perfluorosulfonic acid ionomer – silica composite membranes prepared using hyperbranched polyethoxysiloxane for polymer electrolyte membrane fuel cells</title><author>Horvat, Carmen I. ; Zhu, Xiaomin ; Türp, David ; Vinokur, Rostislav A. ; Demco, Dan E. ; Fechete, Radu ; Conradi, Oliver ; Graichen, Andreas ; Anokhin, Denis ; Ivanov, Dimitri A. ; Möller, Martin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c486t-9d7a472f8fc9cd618539fd7408b791a7300561d084e6c2e6f87a0a15ef23cf3a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Channels</topic><topic>Chemical Sciences</topic><topic>Perfluorosulfonic acid</topic><topic>Polyethoxysiloxane</topic><topic>Polymer electrolyte membrane fuel cells</topic><topic>Polymers</topic><topic>Proton exchange membrane</topic><topic>Silica</topic><topic>Sol–gel process</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Horvat, Carmen I.</creatorcontrib><creatorcontrib>Zhu, Xiaomin</creatorcontrib><creatorcontrib>Türp, David</creatorcontrib><creatorcontrib>Vinokur, Rostislav A.</creatorcontrib><creatorcontrib>Demco, Dan E.</creatorcontrib><creatorcontrib>Fechete, Radu</creatorcontrib><creatorcontrib>Conradi, Oliver</creatorcontrib><creatorcontrib>Graichen, Andreas</creatorcontrib><creatorcontrib>Anokhin, Denis</creatorcontrib><creatorcontrib>Ivanov, Dimitri A.</creatorcontrib><creatorcontrib>Möller, Martin</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>International journal of hydrogen energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Horvat, Carmen I.</au><au>Zhu, Xiaomin</au><au>Türp, David</au><au>Vinokur, Rostislav A.</au><au>Demco, Dan E.</au><au>Fechete, Radu</au><au>Conradi, Oliver</au><au>Graichen, Andreas</au><au>Anokhin, Denis</au><au>Ivanov, Dimitri A.</au><au>Möller, Martin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Perfluorosulfonic acid ionomer – silica composite membranes prepared using hyperbranched polyethoxysiloxane for polymer electrolyte membrane fuel cells</atitle><jtitle>International journal of hydrogen energy</jtitle><date>2012-10-01</date><risdate>2012</risdate><volume>37</volume><issue>19</issue><spage>14454</spage><epage>14462</epage><pages>14454-14462</pages><issn>0360-3199</issn><eissn>1879-3487</eissn><abstract>We report on the preparation and characterization of perfluorosulfonic acid ionomer (PFSA) – silica composite membranes using hyperbranched polyethoxysiloxane (PEOS) as silica precursor. The membranes were formed via an in situ sol–gel process of PEOS in a PFSA solution and subsequent solution casting. Transmission electron microscopy and small-angle X-ray scattering data showed that at low silica content ultra-small silica particles with a size smaller than the diameter of the ionic channels were homogeneously dispersed in the PFSA matrix. Such morphology leads to enhanced proton mobility as probed by impedance spectroscopy and 1H solid-state NMR, and eventually resulted in the improvement of fuel cell performance.
[Display omitted]
► PFSA/silica composite membranes: morphology versus performance. ► In situ sol–gel process using hyperbranched polyethoxysiloxane as silica precursor. ► Homogeneous distribution of ultrasmall silica particles in the polymer matrix. ► Enhanced proton mobility and improved fuel cell performance at low silica content.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.ijhydene.2012.07.014</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-5905-2652</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Channels Chemical Sciences Perfluorosulfonic acid Polyethoxysiloxane Polymer electrolyte membrane fuel cells Polymers Proton exchange membrane Silica Sol–gel process |
| title | Perfluorosulfonic acid ionomer – silica composite membranes prepared using hyperbranched polyethoxysiloxane for polymer electrolyte membrane fuel cells |
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