Platinum surface complexes as precursors for H2–O2 recombination catalysts
In this work, the adsorption of platinum (II, IV) chloride complexes from acidic solutions on silica gel modified with quaternary ammonium salts (QAS) was studied. The uptake of the platinum chloride complexes is caused by the formation of ionic (QAS+)2[PtCl x ]2− (x = 4, 6) associates on the surfac...
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| Veröffentlicht in: | Adsorption science & technology 2017-09, Vol.35 (7-8), p.735-743 |
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| creator | Volovenko, Olesya B Zaporozhets, Olga A Lisnyak, Vladyslav V Boldyrieva, Olga Yu |
| description | In this work, the adsorption of platinum (II, IV) chloride complexes from acidic solutions on silica gel modified with quaternary ammonium salts (QAS) was studied. The uptake of the platinum chloride complexes is caused by the formation of ionic (QAS+)2[PtCl
x
]2− (x = 4, 6) associates on the surface of silica gel. The isotherms of adsorption are fitted by the Langmuir model. The maximum capacity for [PtCl4]2− and [PtCl6]2− is 0.99 and 1.13 mmol/g, correspondingly. The respective adsorption constants KL = 6.8 and 10 × 105 l/mol prove the high affinity of the adsorbates to the QAS-modified surface. Platinum metal nanoparticles supported on the surface of the silica gel were prepared by reducing the adsorbed platinum (II, IV) complexes. Such nanoparticles functioning at the moderate temperature regime have demonstrated a reasonable catalytic activity for the hydrogen and oxygen recombination, and an excellent stability over 35 cycles of the reaction. |
| doi_str_mv | 10.1177/0263617417708430 |
| format | Article |
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x
]2− (x = 4, 6) associates on the surface of silica gel. The isotherms of adsorption are fitted by the Langmuir model. The maximum capacity for [PtCl4]2− and [PtCl6]2− is 0.99 and 1.13 mmol/g, correspondingly. The respective adsorption constants KL = 6.8 and 10 × 105 l/mol prove the high affinity of the adsorbates to the QAS-modified surface. Platinum metal nanoparticles supported on the surface of the silica gel were prepared by reducing the adsorbed platinum (II, IV) complexes. Such nanoparticles functioning at the moderate temperature regime have demonstrated a reasonable catalytic activity for the hydrogen and oxygen recombination, and an excellent stability over 35 cycles of the reaction.</description><identifier>ISSN: 0263-6174</identifier><identifier>EISSN: 2048-4038</identifier><identifier>DOI: 10.1177/0263617417708430</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Adsorbates ; Adsorption ; Catalytic activity ; Chlorides ; Nanoparticles ; Oxygen recombination ; Platinum ; Quaternary ammonium salts ; Silica gel ; Silicon dioxide ; Surface chemistry</subject><ispartof>Adsorption science & technology, 2017-09, Vol.35 (7-8), p.735-743</ispartof><rights>The Author(s) 2017</rights><rights>The Author(s) 2017. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/0263617417708430$$EPDF$$P50$$Gsage$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/0263617417708430$$EHTML$$P50$$Gsage$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,864,21966,27853,27924,27925,44945,45333</link.rule.ids></links><search><creatorcontrib>Volovenko, Olesya B</creatorcontrib><creatorcontrib>Zaporozhets, Olga A</creatorcontrib><creatorcontrib>Lisnyak, Vladyslav V</creatorcontrib><creatorcontrib>Boldyrieva, Olga Yu</creatorcontrib><title>Platinum surface complexes as precursors for H2–O2 recombination catalysts</title><title>Adsorption science & technology</title><description>In this work, the adsorption of platinum (II, IV) chloride complexes from acidic solutions on silica gel modified with quaternary ammonium salts (QAS) was studied. The uptake of the platinum chloride complexes is caused by the formation of ionic (QAS+)2[PtCl
x
]2− (x = 4, 6) associates on the surface of silica gel. The isotherms of adsorption are fitted by the Langmuir model. The maximum capacity for [PtCl4]2− and [PtCl6]2− is 0.99 and 1.13 mmol/g, correspondingly. The respective adsorption constants KL = 6.8 and 10 × 105 l/mol prove the high affinity of the adsorbates to the QAS-modified surface. Platinum metal nanoparticles supported on the surface of the silica gel were prepared by reducing the adsorbed platinum (II, IV) complexes. Such nanoparticles functioning at the moderate temperature regime have demonstrated a reasonable catalytic activity for the hydrogen and oxygen recombination, and an excellent stability over 35 cycles of the reaction.</description><subject>Adsorbates</subject><subject>Adsorption</subject><subject>Catalytic activity</subject><subject>Chlorides</subject><subject>Nanoparticles</subject><subject>Oxygen recombination</subject><subject>Platinum</subject><subject>Quaternary ammonium salts</subject><subject>Silica gel</subject><subject>Silicon dioxide</subject><subject>Surface chemistry</subject><issn>0263-6174</issn><issn>2048-4038</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>AFRWT</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkM9KxDAQxoMoWFfvHgOeo5P_6VEWdYXCetBzSdNUdmmbmrSgN9_BN_RJbFlB8DTDfL-Zb_gQuqRwTanWN8AUV1SLuQcjOByhjIEwRAA3xyhbZLLop-gspT0AZVrqDBVPrR13_dThNMXGOo9d6IbWv_uEbcJD9G6KKcSEmxDxhn1_fm0Znqehq3b9vBp67Oxo2480pnN00tg2-YvfukIv93fP6w0ptg-P69uCDFQbIFJIyWtuHFDrtLB17plVUiqwtGL5_LVyjnkqQFDGcyOBgzPOV42qwFU1X6Grw90hhrfJp7Hchyn2s2XJBBNaUmb4TJEDleyr_yMolEtg5f_A-A_vV1z2</recordid><startdate>201709</startdate><enddate>201709</enddate><creator>Volovenko, Olesya B</creator><creator>Zaporozhets, Olga A</creator><creator>Lisnyak, Vladyslav V</creator><creator>Boldyrieva, Olga Yu</creator><general>SAGE Publications</general><general>Sage Publications Ltd</general><scope>AFRWT</scope><scope>7SR</scope><scope>8FD</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>JG9</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>201709</creationdate><title>Platinum surface complexes as precursors for H2–O2 recombination catalysts</title><author>Volovenko, Olesya B ; Zaporozhets, Olga A ; Lisnyak, Vladyslav V ; Boldyrieva, Olga Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p1780-54553d38c01ac74ad9e2a65560a1b290486cc2e1404123985030c8cebf6b0cbd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Adsorbates</topic><topic>Adsorption</topic><topic>Catalytic activity</topic><topic>Chlorides</topic><topic>Nanoparticles</topic><topic>Oxygen recombination</topic><topic>Platinum</topic><topic>Quaternary ammonium salts</topic><topic>Silica gel</topic><topic>Silicon dioxide</topic><topic>Surface chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Volovenko, Olesya B</creatorcontrib><creatorcontrib>Zaporozhets, Olga A</creatorcontrib><creatorcontrib>Lisnyak, Vladyslav V</creatorcontrib><creatorcontrib>Boldyrieva, Olga Yu</creatorcontrib><collection>Sage Journals GOLD Open Access 2024</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Materials Research Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Adsorption science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Volovenko, Olesya B</au><au>Zaporozhets, Olga A</au><au>Lisnyak, Vladyslav V</au><au>Boldyrieva, Olga Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Platinum surface complexes as precursors for H2–O2 recombination catalysts</atitle><jtitle>Adsorption science & technology</jtitle><date>2017-09</date><risdate>2017</risdate><volume>35</volume><issue>7-8</issue><spage>735</spage><epage>743</epage><pages>735-743</pages><issn>0263-6174</issn><eissn>2048-4038</eissn><abstract>In this work, the adsorption of platinum (II, IV) chloride complexes from acidic solutions on silica gel modified with quaternary ammonium salts (QAS) was studied. The uptake of the platinum chloride complexes is caused by the formation of ionic (QAS+)2[PtCl
x
]2− (x = 4, 6) associates on the surface of silica gel. The isotherms of adsorption are fitted by the Langmuir model. The maximum capacity for [PtCl4]2− and [PtCl6]2− is 0.99 and 1.13 mmol/g, correspondingly. The respective adsorption constants KL = 6.8 and 10 × 105 l/mol prove the high affinity of the adsorbates to the QAS-modified surface. Platinum metal nanoparticles supported on the surface of the silica gel were prepared by reducing the adsorbed platinum (II, IV) complexes. Such nanoparticles functioning at the moderate temperature regime have demonstrated a reasonable catalytic activity for the hydrogen and oxygen recombination, and an excellent stability over 35 cycles of the reaction.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1177/0263617417708430</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adsorbates Adsorption Catalytic activity Chlorides Nanoparticles Oxygen recombination Platinum Quaternary ammonium salts Silica gel Silicon dioxide Surface chemistry |
| title | Platinum surface complexes as precursors for H2–O2 recombination catalysts |
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