Metal nanoparticle loading of gel-brush grafted polymer fibers in membranes for catalysis
We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs). The membranes consisted of polycaprolactone (PCL) microfibers featuring gel-brush layers of poly(hydroxyethyl methacrylate) (PHEMA). Pd nanoparticle loading w...
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Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018, Vol.6 (17), p.7741-7748 |
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creator | Liu, Yan Zhang, Kaihuan Li, Weiya Ma, Jinghong Vancso, G. Julius |
description | We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs). The membranes consisted of polycaprolactone (PCL) microfibers featuring gel-brush layers of poly(hydroxyethyl methacrylate) (PHEMA). Pd nanoparticle loading was achieved by
in situ
reduction of Pd
2+
, coordinated to carboxylate groups in the brush, in aqueous Pd(NO
3
)
2
electrolytes by using NaBH
4
. Gel-brushes were obtained
via
surface-initiated atom transfer radical polymerization (ATRP) polymerization. The membrane mats prior to functionalization were fabricated by electrospinning of PCL solutions. The PCL included mixtures of Br terminated PCL chains with a non-functional polymer. The electrospun fibers thus featured Br at their surface, which functioned as initiators, and allowed us to polymerize polymer gel-brushes at the fiber surface. The formation of Pd nanoparticles was evidenced by SEM and TEM. The membranes obtained had a large specific surface area and high porosity, which enabled high concentrations of metal nanoparticle loadings. The structure and morphology of the membranes were characterized by FTIR, SEM, TGA, and static contact angle measurements. The membranes obtained showed pronounced catalytic activity due to the presence of Pd NPs. As a proof-of-principle experiment we performed the catalytic reduction of 4-nitrophenol to 4-aminophenol in continuous flow-through catalysis.
We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs). |
doi_str_mv | 10.1039/c8ta01231h |
format | Article |
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in situ
reduction of Pd
2+
, coordinated to carboxylate groups in the brush, in aqueous Pd(NO
3
)
2
electrolytes by using NaBH
4
. Gel-brushes were obtained
via
surface-initiated atom transfer radical polymerization (ATRP) polymerization. The membrane mats prior to functionalization were fabricated by electrospinning of PCL solutions. The PCL included mixtures of Br terminated PCL chains with a non-functional polymer. The electrospun fibers thus featured Br at their surface, which functioned as initiators, and allowed us to polymerize polymer gel-brushes at the fiber surface. The formation of Pd nanoparticles was evidenced by SEM and TEM. The membranes obtained had a large specific surface area and high porosity, which enabled high concentrations of metal nanoparticle loadings. The structure and morphology of the membranes were characterized by FTIR, SEM, TGA, and static contact angle measurements. The membranes obtained showed pronounced catalytic activity due to the presence of Pd NPs. As a proof-of-principle experiment we performed the catalytic reduction of 4-nitrophenol to 4-aminophenol in continuous flow-through catalysis.
We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs).</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/c8ta01231h</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Aminophenol ; Aqueous electrolytes ; Brushes ; Catalysis ; Catalytic activity ; Chemical reduction ; Chemical Sciences ; Contact angle ; Continuous flow ; Fibers ; Initiators ; Material chemistry ; Mats ; Membranes ; Metal concentrations ; Microfibers ; Nanoparticles ; Nitrophenol ; Palladium ; Polycaprolactone ; Polyhydroxyethyl methacrylate ; Polymerization ; Polymers ; Porosity</subject><ispartof>Journal of materials chemistry. A, Materials for energy and sustainability, 2018, Vol.6 (17), p.7741-7748</ispartof><rights>Copyright Royal Society of Chemistry 2018</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-6991fd94251d95f76516da81be58360d84594fa46d49db882372a734b46107d33</citedby><cites>FETCH-LOGICAL-c388t-6991fd94251d95f76516da81be58360d84594fa46d49db882372a734b46107d33</cites><orcidid>0000-0003-4718-0507 ; 0000-0001-7933-7957 ; 0000-0002-7353-4180 ; 0000-0002-6553-2767 ; 0000-0002-3229-0589</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,777,781,882,4010,27904,27905,27906</link.rule.ids><backlink>$$Uhttps://hal.science/hal-01916756$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Yan</creatorcontrib><creatorcontrib>Zhang, Kaihuan</creatorcontrib><creatorcontrib>Li, Weiya</creatorcontrib><creatorcontrib>Ma, Jinghong</creatorcontrib><creatorcontrib>Vancso, G. Julius</creatorcontrib><title>Metal nanoparticle loading of gel-brush grafted polymer fibers in membranes for catalysis</title><title>Journal of materials chemistry. A, Materials for energy and sustainability</title><description>We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs). The membranes consisted of polycaprolactone (PCL) microfibers featuring gel-brush layers of poly(hydroxyethyl methacrylate) (PHEMA). Pd nanoparticle loading was achieved by
in situ
reduction of Pd
2+
, coordinated to carboxylate groups in the brush, in aqueous Pd(NO
3
)
2
electrolytes by using NaBH
4
. Gel-brushes were obtained
via
surface-initiated atom transfer radical polymerization (ATRP) polymerization. The membrane mats prior to functionalization were fabricated by electrospinning of PCL solutions. The PCL included mixtures of Br terminated PCL chains with a non-functional polymer. The electrospun fibers thus featured Br at their surface, which functioned as initiators, and allowed us to polymerize polymer gel-brushes at the fiber surface. The formation of Pd nanoparticles was evidenced by SEM and TEM. The membranes obtained had a large specific surface area and high porosity, which enabled high concentrations of metal nanoparticle loadings. The structure and morphology of the membranes were characterized by FTIR, SEM, TGA, and static contact angle measurements. The membranes obtained showed pronounced catalytic activity due to the presence of Pd NPs. As a proof-of-principle experiment we performed the catalytic reduction of 4-nitrophenol to 4-aminophenol in continuous flow-through catalysis.
We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs).</description><subject>Aminophenol</subject><subject>Aqueous electrolytes</subject><subject>Brushes</subject><subject>Catalysis</subject><subject>Catalytic activity</subject><subject>Chemical reduction</subject><subject>Chemical Sciences</subject><subject>Contact angle</subject><subject>Continuous flow</subject><subject>Fibers</subject><subject>Initiators</subject><subject>Material chemistry</subject><subject>Mats</subject><subject>Membranes</subject><subject>Metal concentrations</subject><subject>Microfibers</subject><subject>Nanoparticles</subject><subject>Nitrophenol</subject><subject>Palladium</subject><subject>Polycaprolactone</subject><subject>Polyhydroxyethyl methacrylate</subject><subject>Polymerization</subject><subject>Polymers</subject><subject>Porosity</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpFkU1LAzEQhoMoWGov3oWAJ4XVfG0-jqWoFSpe6sFTyG6SdsvuZk22Qv-9W1fqXGYYHh6GdwC4xugBI6oeS9kbhAnF2zMwIShHmWCKn59mKS_BLKUdGkoixJWagM8315satqYNnYl9VdYO1sHYqt3A4OHG1VkR92kLN9H43lnYhfrQuAh9VbiYYNXCxjVFNK1L0IcISzP4DqlKV-DCmzq52V-fgo_np_Vima3eX14X81VWUin7bLgCe6sYybFVuRc8x9waiQuXS8qRlSxXzBvGLVO2kJJQQYygrGAcI2EpnYK70bs1te5i1Zh40MFUejlf6eMOYYW5yPk3Htjbke1i-Nq71Otd2Md2OE8TRIlQXKCj8X6kyhhSis6ftBjpY9J6Idfz36SXA3wzwjGVJ-7_E_QHaqt4gA</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>Liu, Yan</creator><creator>Zhang, Kaihuan</creator><creator>Li, Weiya</creator><creator>Ma, Jinghong</creator><creator>Vancso, G. Julius</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>JG9</scope><scope>L7M</scope><scope>SOI</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-4718-0507</orcidid><orcidid>https://orcid.org/0000-0001-7933-7957</orcidid><orcidid>https://orcid.org/0000-0002-7353-4180</orcidid><orcidid>https://orcid.org/0000-0002-6553-2767</orcidid><orcidid>https://orcid.org/0000-0002-3229-0589</orcidid></search><sort><creationdate>2018</creationdate><title>Metal nanoparticle loading of gel-brush grafted polymer fibers in membranes for catalysis</title><author>Liu, Yan ; Zhang, Kaihuan ; Li, Weiya ; Ma, Jinghong ; Vancso, G. Julius</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c388t-6991fd94251d95f76516da81be58360d84594fa46d49db882372a734b46107d33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Aminophenol</topic><topic>Aqueous electrolytes</topic><topic>Brushes</topic><topic>Catalysis</topic><topic>Catalytic activity</topic><topic>Chemical reduction</topic><topic>Chemical Sciences</topic><topic>Contact angle</topic><topic>Continuous flow</topic><topic>Fibers</topic><topic>Initiators</topic><topic>Material chemistry</topic><topic>Mats</topic><topic>Membranes</topic><topic>Metal concentrations</topic><topic>Microfibers</topic><topic>Nanoparticles</topic><topic>Nitrophenol</topic><topic>Palladium</topic><topic>Polycaprolactone</topic><topic>Polyhydroxyethyl methacrylate</topic><topic>Polymerization</topic><topic>Polymers</topic><topic>Porosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Yan</creatorcontrib><creatorcontrib>Zhang, Kaihuan</creatorcontrib><creatorcontrib>Li, Weiya</creatorcontrib><creatorcontrib>Ma, Jinghong</creatorcontrib><creatorcontrib>Vancso, G. Julius</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Yan</au><au>Zhang, Kaihuan</au><au>Li, Weiya</au><au>Ma, Jinghong</au><au>Vancso, G. Julius</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Metal nanoparticle loading of gel-brush grafted polymer fibers in membranes for catalysis</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2018</date><risdate>2018</risdate><volume>6</volume><issue>17</issue><spage>7741</spage><epage>7748</epage><pages>7741-7748</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs). The membranes consisted of polycaprolactone (PCL) microfibers featuring gel-brush layers of poly(hydroxyethyl methacrylate) (PHEMA). Pd nanoparticle loading was achieved by
in situ
reduction of Pd
2+
, coordinated to carboxylate groups in the brush, in aqueous Pd(NO
3
)
2
electrolytes by using NaBH
4
. Gel-brushes were obtained
via
surface-initiated atom transfer radical polymerization (ATRP) polymerization. The membrane mats prior to functionalization were fabricated by electrospinning of PCL solutions. The PCL included mixtures of Br terminated PCL chains with a non-functional polymer. The electrospun fibers thus featured Br at their surface, which functioned as initiators, and allowed us to polymerize polymer gel-brushes at the fiber surface. The formation of Pd nanoparticles was evidenced by SEM and TEM. The membranes obtained had a large specific surface area and high porosity, which enabled high concentrations of metal nanoparticle loadings. The structure and morphology of the membranes were characterized by FTIR, SEM, TGA, and static contact angle measurements. The membranes obtained showed pronounced catalytic activity due to the presence of Pd NPs. As a proof-of-principle experiment we performed the catalytic reduction of 4-nitrophenol to 4-aminophenol in continuous flow-through catalysis.
We report on the preparation, characterization, and catalytic activity of microporous membranes featuring palladium (Pd) nanoparticles (NPs).</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/c8ta01231h</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-4718-0507</orcidid><orcidid>https://orcid.org/0000-0001-7933-7957</orcidid><orcidid>https://orcid.org/0000-0002-7353-4180</orcidid><orcidid>https://orcid.org/0000-0002-6553-2767</orcidid><orcidid>https://orcid.org/0000-0002-3229-0589</orcidid><oa>free_for_read</oa></addata></record> |
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source | Royal Society Of Chemistry Journals 2008- |
subjects | Aminophenol Aqueous electrolytes Brushes Catalysis Catalytic activity Chemical reduction Chemical Sciences Contact angle Continuous flow Fibers Initiators Material chemistry Mats Membranes Metal concentrations Microfibers Nanoparticles Nitrophenol Palladium Polycaprolactone Polyhydroxyethyl methacrylate Polymerization Polymers Porosity |
title | Metal nanoparticle loading of gel-brush grafted polymer fibers in membranes for catalysis |
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