Structure, magnetic and catalytic properties of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites and their syntheses by a modified sol–gel method
The structure, magnetic and catalytic properties of silica - ferrite nanocomposites were investigated. A series of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) composites were synthesized by a sol–gel technique using citric acid and glycerin. The samples were characterized by TGA, XRD, TEM and BET methods. Resu...
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| Veröffentlicht in: | Materials chemistry and physics 2019-09, Vol.235, p.121731, Article 121731 |
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| creator | Piskuła, Zbigniew S. Skokowski, Przemysław Toliński, Tomasz Zieliński, Michał Kirszensztejn, Piotr Nowicki, Waldemar |
| description | The structure, magnetic and catalytic properties of silica - ferrite nanocomposites were investigated. A series of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) composites were synthesized by a sol–gel technique using citric acid and glycerin. The samples were characterized by TGA, XRD, TEM and BET methods. Results of magnetization measurements proved a strong dependence of the saturation magnetization and the blocking temperature on the calcination temperature. The Co-based nanocomposites showed increased coercive field of the magnetic hysteresis loops relative to the other studied nanocomposites. It was also observed that the structural differences of the Cu-based composites subjected to calcination at two temperatures significantly modify the magnetic behavior. The catalytic properties of composites were tested in nitrous oxide decomposition. The conversion of nitrous oxide over the SiO2-MFe2O4 composites increased in the sequence: Mn (39%) |
| doi_str_mv | 10.1016/j.matchemphys.2019.121731 |
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•SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites obtained by a modified sol-gel method using citric acid and glycerine.•Nanocomposites showed a mesoporous structure and well-dispersed particles of ferrites on the support.•Exceptionally large coercive field has been registered for the SiO2–CoFe2O4 nanocomposite.•High temperature catalytic decomposition of the nitrous oxide (greenhouse gas).</description><identifier>ISSN: 0254-0584</identifier><identifier>EISSN: 1879-3312</identifier><identifier>DOI: 10.1016/j.matchemphys.2019.121731</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Catalytic converters ; Citric acid ; Cobalt ; Coercivity ; Copper ; Dependence ; Hysteresis loops ; Magnetic properties ; Magnetic saturation ; Magnetization ; Manganese ; Measurement methods ; N2O decomposition ; Nanocomposites ; Nickel ; Nitrous oxide ; Roasting ; Silica-ferrite composites ; Silicon dioxide ; Sol-gel method ; Sol-gel processes</subject><ispartof>Materials chemistry and physics, 2019-09, Vol.235, p.121731, Article 121731</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Sep 1, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-a13b3963e5d17bbc0772cb19702cb0478a367d8267d63140a4519f939b9a929f3</citedby><cites>FETCH-LOGICAL-c349t-a13b3963e5d17bbc0772cb19702cb0478a367d8267d63140a4519f939b9a929f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matchemphys.2019.121731$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Piskuła, Zbigniew S.</creatorcontrib><creatorcontrib>Skokowski, Przemysław</creatorcontrib><creatorcontrib>Toliński, Tomasz</creatorcontrib><creatorcontrib>Zieliński, Michał</creatorcontrib><creatorcontrib>Kirszensztejn, Piotr</creatorcontrib><creatorcontrib>Nowicki, Waldemar</creatorcontrib><title>Structure, magnetic and catalytic properties of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites and their syntheses by a modified sol–gel method</title><title>Materials chemistry and physics</title><description>The structure, magnetic and catalytic properties of silica - ferrite nanocomposites were investigated. A series of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) composites were synthesized by a sol–gel technique using citric acid and glycerin. The samples were characterized by TGA, XRD, TEM and BET methods. Results of magnetization measurements proved a strong dependence of the saturation magnetization and the blocking temperature on the calcination temperature. The Co-based nanocomposites showed increased coercive field of the magnetic hysteresis loops relative to the other studied nanocomposites. It was also observed that the structural differences of the Cu-based composites subjected to calcination at two temperatures significantly modify the magnetic behavior. The catalytic properties of composites were tested in nitrous oxide decomposition. The conversion of nitrous oxide over the SiO2-MFe2O4 composites increased in the sequence: Mn (39%) < Ni (69%) < Co (76%) = Cu (76%), at temperature 973 K and WHSV = 30000 ml·g−1· h−1.
•SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites obtained by a modified sol-gel method using citric acid and glycerine.•Nanocomposites showed a mesoporous structure and well-dispersed particles of ferrites on the support.•Exceptionally large coercive field has been registered for the SiO2–CoFe2O4 nanocomposite.•High temperature catalytic decomposition of the nitrous oxide (greenhouse gas).</description><subject>Catalytic converters</subject><subject>Citric acid</subject><subject>Cobalt</subject><subject>Coercivity</subject><subject>Copper</subject><subject>Dependence</subject><subject>Hysteresis loops</subject><subject>Magnetic properties</subject><subject>Magnetic saturation</subject><subject>Magnetization</subject><subject>Manganese</subject><subject>Measurement methods</subject><subject>N2O decomposition</subject><subject>Nanocomposites</subject><subject>Nickel</subject><subject>Nitrous oxide</subject><subject>Roasting</subject><subject>Silica-ferrite composites</subject><subject>Silicon dioxide</subject><subject>Sol-gel method</subject><subject>Sol-gel processes</subject><issn>0254-0584</issn><issn>1879-3312</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqNUcGO0zAQtRBIlGX_wYgLSE3x2EkdHzigit1F2tLDLmfLcSZbV00cbGel3PYb4A_5ElyVA8e9zJsZzXujp0fIO2ArYLD-dFj1Jtk99uN-jivOQK2AgxTwgiyglqoQAvhLsmC8KgtW1eVr8ibGA2MgAcSC_LpLYbJpCrikvXkYMDlLzdBSa5I5zqdpDH7EkBxG6jt653a82F4h35X0w5Z-ptthSTd-Sb-7jNNHOpjBW9-PPrqUKSettEcXaJyH3MS8a2ZqaO9b1zlsafTHP0-_H_BIe0x7374lrzpzjHj5Dy_Ij6uv95ub4nZ3_W3z5bawolSpMCAaodYCqxZk01gmJbcNKMkysFLWRqxlW_Nc1gJKZsoKVKeEapRRXHXigrw_62aDPyeMSR_8FIb8UnMBoIDXlcxX6nxlg48xYKfH4HoTZg1MnyLQB_1fBPoUgT5HkLmbMxezjUeHQUfrcLDYuoA26da7Z6j8BbUnlRs</recordid><startdate>20190901</startdate><enddate>20190901</enddate><creator>Piskuła, Zbigniew S.</creator><creator>Skokowski, Przemysław</creator><creator>Toliński, Tomasz</creator><creator>Zieliński, Michał</creator><creator>Kirszensztejn, Piotr</creator><creator>Nowicki, Waldemar</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20190901</creationdate><title>Structure, magnetic and catalytic properties of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites and their syntheses by a modified sol–gel method</title><author>Piskuła, Zbigniew S. ; Skokowski, Przemysław ; Toliński, Tomasz ; Zieliński, Michał ; Kirszensztejn, Piotr ; Nowicki, Waldemar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-a13b3963e5d17bbc0772cb19702cb0478a367d8267d63140a4519f939b9a929f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Catalytic converters</topic><topic>Citric acid</topic><topic>Cobalt</topic><topic>Coercivity</topic><topic>Copper</topic><topic>Dependence</topic><topic>Hysteresis loops</topic><topic>Magnetic properties</topic><topic>Magnetic saturation</topic><topic>Magnetization</topic><topic>Manganese</topic><topic>Measurement methods</topic><topic>N2O decomposition</topic><topic>Nanocomposites</topic><topic>Nickel</topic><topic>Nitrous oxide</topic><topic>Roasting</topic><topic>Silica-ferrite composites</topic><topic>Silicon dioxide</topic><topic>Sol-gel method</topic><topic>Sol-gel processes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Piskuła, Zbigniew S.</creatorcontrib><creatorcontrib>Skokowski, Przemysław</creatorcontrib><creatorcontrib>Toliński, Tomasz</creatorcontrib><creatorcontrib>Zieliński, Michał</creatorcontrib><creatorcontrib>Kirszensztejn, Piotr</creatorcontrib><creatorcontrib>Nowicki, Waldemar</creatorcontrib><collection>CrossRef</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>Materials chemistry and physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Piskuła, Zbigniew S.</au><au>Skokowski, Przemysław</au><au>Toliński, Tomasz</au><au>Zieliński, Michał</au><au>Kirszensztejn, Piotr</au><au>Nowicki, Waldemar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structure, magnetic and catalytic properties of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites and their syntheses by a modified sol–gel method</atitle><jtitle>Materials chemistry and physics</jtitle><date>2019-09-01</date><risdate>2019</risdate><volume>235</volume><spage>121731</spage><pages>121731-</pages><artnum>121731</artnum><issn>0254-0584</issn><eissn>1879-3312</eissn><abstract>The structure, magnetic and catalytic properties of silica - ferrite nanocomposites were investigated. A series of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) composites were synthesized by a sol–gel technique using citric acid and glycerin. The samples were characterized by TGA, XRD, TEM and BET methods. Results of magnetization measurements proved a strong dependence of the saturation magnetization and the blocking temperature on the calcination temperature. The Co-based nanocomposites showed increased coercive field of the magnetic hysteresis loops relative to the other studied nanocomposites. It was also observed that the structural differences of the Cu-based composites subjected to calcination at two temperatures significantly modify the magnetic behavior. The catalytic properties of composites were tested in nitrous oxide decomposition. The conversion of nitrous oxide over the SiO2-MFe2O4 composites increased in the sequence: Mn (39%) < Ni (69%) < Co (76%) = Cu (76%), at temperature 973 K and WHSV = 30000 ml·g−1· h−1.
•SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites obtained by a modified sol-gel method using citric acid and glycerine.•Nanocomposites showed a mesoporous structure and well-dispersed particles of ferrites on the support.•Exceptionally large coercive field has been registered for the SiO2–CoFe2O4 nanocomposite.•High temperature catalytic decomposition of the nitrous oxide (greenhouse gas).</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matchemphys.2019.121731</doi></addata></record> |
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| subjects | Catalytic converters Citric acid Cobalt Coercivity Copper Dependence Hysteresis loops Magnetic properties Magnetic saturation Magnetization Manganese Measurement methods N2O decomposition Nanocomposites Nickel Nitrous oxide Roasting Silica-ferrite composites Silicon dioxide Sol-gel method Sol-gel processes |
| title | Structure, magnetic and catalytic properties of SiO2-MFe2O4 (M = Mn, Co, Ni, Cu) nanocomposites and their syntheses by a modified sol–gel method |
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