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Pt Nanoparticles Sensitized Ordered Mesoporous WO3 Semiconductor: Gas Sensing Performance and Mechanism Study
In this study, a straightforward coassembly strategy is demonstrated to synthesize Pt sensitized mesoporous WO3 with crystalline framework through the simultaneous coassembly of amphiphilic poly(ethylene oxide)‐b‐polystyrene, hydrophobic platinum precursors, and hydrophilic tungsten precursors. The...
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Published in: | Advanced functional materials 2018-02, Vol.28 (6), p.n/a |
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creator | Ma, Junhao Ren, Yuan Zhou, Xinran Liu, Liangliang Zhu, Yongheng Cheng, Xiaowei Xu, Pengcheng Li, Xinxin Deng, Yonghui Zhao, Dongyuan |
description | In this study, a straightforward coassembly strategy is demonstrated to synthesize Pt sensitized mesoporous WO3 with crystalline framework through the simultaneous coassembly of amphiphilic poly(ethylene oxide)‐b‐polystyrene, hydrophobic platinum precursors, and hydrophilic tungsten precursors. The obtained WO3/Pt nanocomposites possess large pore size (≈13 nm), high surface area (128 m2 g−1), large pore volume (0.32 cm3 g−1), and Pt nanoparticles (≈4 nm) in situ homogeneously distributed in mesopores, and they exhibit excellent catalytic sensing response to CO of low concentration at low working temperature with good sensitivity, ultrashort response‐recovery time (16 s/1 s), and high selectivity. In‐depth study reveals that besides the contribution from the fast diffusion of gaseous molecules and rich interfaces in mesoporous WO3/Pt nanocomposites, the partially oxidized Pt nanoparticles that chemically and electronically sensitize the crystalline WO3 matrix, dramatically enhance the sensitivity and selectivity.
Ordered mesoporous crystalline WO3/Pt nanomaterials are synthesized through a facile straightforward coassembly strategy. Owning to combined merits of the high porosity of mesoporous WO3 and the chemical and electronic sensitization effect of Pt NPs dispersed in mesopores, the nanocomposites exhibit superior performance in carbon monoxide sensing at low working temperature. |
doi_str_mv | 10.1002/adfm.201705268 |
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Ordered mesoporous crystalline WO3/Pt nanomaterials are synthesized through a facile straightforward coassembly strategy. Owning to combined merits of the high porosity of mesoporous WO3 and the chemical and electronic sensitization effect of Pt NPs dispersed in mesopores, the nanocomposites exhibit superior performance in carbon monoxide sensing at low working temperature.</description><identifier>ISSN: 1616-301X</identifier><identifier>EISSN: 1616-3028</identifier><identifier>DOI: 10.1002/adfm.201705268</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc</publisher><subject>Catalysis ; Crystal structure ; Crystallinity ; Diffusion rate ; Ethylene oxide ; Gas sensors ; Materials science ; mesoporous materials ; Nanocomposites ; Nanoparticles ; noble metals ; Platinum ; Polystyrene resins ; Pore size ; Porosity ; Recovery time ; Selectivity ; sensing mechanism ; Sensitivity enhancement ; tungsten oxide ; Tungsten oxides</subject><ispartof>Advanced functional materials, 2018-02, Vol.28 (6), p.n/a</ispartof><rights>2017 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-0657-9397</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Ma, Junhao</creatorcontrib><creatorcontrib>Ren, Yuan</creatorcontrib><creatorcontrib>Zhou, Xinran</creatorcontrib><creatorcontrib>Liu, Liangliang</creatorcontrib><creatorcontrib>Zhu, Yongheng</creatorcontrib><creatorcontrib>Cheng, Xiaowei</creatorcontrib><creatorcontrib>Xu, Pengcheng</creatorcontrib><creatorcontrib>Li, Xinxin</creatorcontrib><creatorcontrib>Deng, Yonghui</creatorcontrib><creatorcontrib>Zhao, Dongyuan</creatorcontrib><title>Pt Nanoparticles Sensitized Ordered Mesoporous WO3 Semiconductor: Gas Sensing Performance and Mechanism Study</title><title>Advanced functional materials</title><description>In this study, a straightforward coassembly strategy is demonstrated to synthesize Pt sensitized mesoporous WO3 with crystalline framework through the simultaneous coassembly of amphiphilic poly(ethylene oxide)‐b‐polystyrene, hydrophobic platinum precursors, and hydrophilic tungsten precursors. The obtained WO3/Pt nanocomposites possess large pore size (≈13 nm), high surface area (128 m2 g−1), large pore volume (0.32 cm3 g−1), and Pt nanoparticles (≈4 nm) in situ homogeneously distributed in mesopores, and they exhibit excellent catalytic sensing response to CO of low concentration at low working temperature with good sensitivity, ultrashort response‐recovery time (16 s/1 s), and high selectivity. In‐depth study reveals that besides the contribution from the fast diffusion of gaseous molecules and rich interfaces in mesoporous WO3/Pt nanocomposites, the partially oxidized Pt nanoparticles that chemically and electronically sensitize the crystalline WO3 matrix, dramatically enhance the sensitivity and selectivity.
Ordered mesoporous crystalline WO3/Pt nanomaterials are synthesized through a facile straightforward coassembly strategy. Owning to combined merits of the high porosity of mesoporous WO3 and the chemical and electronic sensitization effect of Pt NPs dispersed in mesopores, the nanocomposites exhibit superior performance in carbon monoxide sensing at low working temperature.</description><subject>Catalysis</subject><subject>Crystal structure</subject><subject>Crystallinity</subject><subject>Diffusion rate</subject><subject>Ethylene oxide</subject><subject>Gas sensors</subject><subject>Materials science</subject><subject>mesoporous materials</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>noble metals</subject><subject>Platinum</subject><subject>Polystyrene resins</subject><subject>Pore size</subject><subject>Porosity</subject><subject>Recovery time</subject><subject>Selectivity</subject><subject>sensing mechanism</subject><subject>Sensitivity enhancement</subject><subject>tungsten oxide</subject><subject>Tungsten oxides</subject><issn>1616-301X</issn><issn>1616-3028</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9kN1PwjAUxRujiYi--tzE52E_1m7zjaCgCQgJGn1rSj9whLWz3ULwr3cEwtO59-Z37kkOAPcYDTBC5FFqWw0IwhlihOcXoIc55glFJL88z_j7GtzEuEEdltG0B6pFA9-l87UMTam2JsKlcbFsyj-j4TxoEzqdmehrH3wb4decdkRVKu90qxofnuBEnkxuDRcmWB8q6ZSB0h2c6ke6MlZw2bR6fwuurNxGc3fSPvgcv3yMXpPpfPI2Gk6TNaU8TzhSGNOC0hSbjCOJLSsooemKEyNRzq0mtDsqk6mU5qSwHcoMs9ZmjKuVpn3wcPxbB__bmtiIjW-D6yIFLooU44LlrKOKI7Urt2Yv6lBWMuwFRuLQpzj0Kc59iuHzeHbe6D-FjGxh</recordid><startdate>20180207</startdate><enddate>20180207</enddate><creator>Ma, Junhao</creator><creator>Ren, Yuan</creator><creator>Zhou, Xinran</creator><creator>Liu, Liangliang</creator><creator>Zhu, Yongheng</creator><creator>Cheng, Xiaowei</creator><creator>Xu, Pengcheng</creator><creator>Li, Xinxin</creator><creator>Deng, Yonghui</creator><creator>Zhao, Dongyuan</creator><general>Wiley Subscription Services, Inc</general><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-0657-9397</orcidid></search><sort><creationdate>20180207</creationdate><title>Pt Nanoparticles Sensitized Ordered Mesoporous WO3 Semiconductor: Gas Sensing Performance and Mechanism Study</title><author>Ma, Junhao ; Ren, Yuan ; Zhou, Xinran ; Liu, Liangliang ; Zhu, Yongheng ; Cheng, Xiaowei ; Xu, Pengcheng ; Li, Xinxin ; Deng, Yonghui ; Zhao, Dongyuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g3368-60c11393341e760a1f593234b62ea086fd23a1fce7c43829f9335e5fff756cbd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Catalysis</topic><topic>Crystal structure</topic><topic>Crystallinity</topic><topic>Diffusion rate</topic><topic>Ethylene oxide</topic><topic>Gas sensors</topic><topic>Materials science</topic><topic>mesoporous materials</topic><topic>Nanocomposites</topic><topic>Nanoparticles</topic><topic>noble metals</topic><topic>Platinum</topic><topic>Polystyrene resins</topic><topic>Pore size</topic><topic>Porosity</topic><topic>Recovery time</topic><topic>Selectivity</topic><topic>sensing mechanism</topic><topic>Sensitivity enhancement</topic><topic>tungsten oxide</topic><topic>Tungsten oxides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Junhao</creatorcontrib><creatorcontrib>Ren, Yuan</creatorcontrib><creatorcontrib>Zhou, Xinran</creatorcontrib><creatorcontrib>Liu, Liangliang</creatorcontrib><creatorcontrib>Zhu, Yongheng</creatorcontrib><creatorcontrib>Cheng, Xiaowei</creatorcontrib><creatorcontrib>Xu, Pengcheng</creatorcontrib><creatorcontrib>Li, Xinxin</creatorcontrib><creatorcontrib>Deng, Yonghui</creatorcontrib><creatorcontrib>Zhao, Dongyuan</creatorcontrib><collection>Electronics & Communications Abstracts</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><jtitle>Advanced functional materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Junhao</au><au>Ren, Yuan</au><au>Zhou, Xinran</au><au>Liu, Liangliang</au><au>Zhu, Yongheng</au><au>Cheng, Xiaowei</au><au>Xu, Pengcheng</au><au>Li, Xinxin</au><au>Deng, Yonghui</au><au>Zhao, Dongyuan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pt Nanoparticles Sensitized Ordered Mesoporous WO3 Semiconductor: Gas Sensing Performance and Mechanism Study</atitle><jtitle>Advanced functional materials</jtitle><date>2018-02-07</date><risdate>2018</risdate><volume>28</volume><issue>6</issue><epage>n/a</epage><issn>1616-301X</issn><eissn>1616-3028</eissn><abstract>In this study, a straightforward coassembly strategy is demonstrated to synthesize Pt sensitized mesoporous WO3 with crystalline framework through the simultaneous coassembly of amphiphilic poly(ethylene oxide)‐b‐polystyrene, hydrophobic platinum precursors, and hydrophilic tungsten precursors. The obtained WO3/Pt nanocomposites possess large pore size (≈13 nm), high surface area (128 m2 g−1), large pore volume (0.32 cm3 g−1), and Pt nanoparticles (≈4 nm) in situ homogeneously distributed in mesopores, and they exhibit excellent catalytic sensing response to CO of low concentration at low working temperature with good sensitivity, ultrashort response‐recovery time (16 s/1 s), and high selectivity. In‐depth study reveals that besides the contribution from the fast diffusion of gaseous molecules and rich interfaces in mesoporous WO3/Pt nanocomposites, the partially oxidized Pt nanoparticles that chemically and electronically sensitize the crystalline WO3 matrix, dramatically enhance the sensitivity and selectivity.
Ordered mesoporous crystalline WO3/Pt nanomaterials are synthesized through a facile straightforward coassembly strategy. Owning to combined merits of the high porosity of mesoporous WO3 and the chemical and electronic sensitization effect of Pt NPs dispersed in mesopores, the nanocomposites exhibit superior performance in carbon monoxide sensing at low working temperature.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/adfm.201705268</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-0657-9397</orcidid></addata></record> |
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subjects | Catalysis Crystal structure Crystallinity Diffusion rate Ethylene oxide Gas sensors Materials science mesoporous materials Nanocomposites Nanoparticles noble metals Platinum Polystyrene resins Pore size Porosity Recovery time Selectivity sensing mechanism Sensitivity enhancement tungsten oxide Tungsten oxides |
title | Pt Nanoparticles Sensitized Ordered Mesoporous WO3 Semiconductor: Gas Sensing Performance and Mechanism Study |
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