Cation distribution in Ni–Cu–Zn nanoferrites from {sup 57}Fe in-field Mössbauer spectra
Highlights: • Occupancy of copper ions at about 20% towards tetrahedral sites. • Distribution is proposed on the basis of % of Fe ions at both A and B sites. • Distribution is checked by estimating the theoretical lattice constant values. - Abstract: The nanoparticles of Ni{sub 1−x}Cu{sub x}Zn{sub 0...
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| container_title | Materials research bulletin |
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| creator | Prameela, P. Kumar, A. Mahesh Choudary, G.S.V.R.K. Rao, K.H. Reddy, V.R. |
| description | Highlights: • Occupancy of copper ions at about 20% towards tetrahedral sites. • Distribution is proposed on the basis of % of Fe ions at both A and B sites. • Distribution is checked by estimating the theoretical lattice constant values. - Abstract: The nanoparticles of Ni{sub 1−x}Cu{sub x}Zn{sub 0.35}Fe{sub 2}O{sub 4} were synthesized by sol–gel method using polyvinyl alcohol as a chelating agent. X-ray diffraction patterns of all the samples confirmed the single phase spinel structure. The site occupancy of copper in the nanosized nickel–zinc ferrite spinels was investigated with the help of in-field Mössbauer spectroscopy. Cation distribution for the whole series of compositions was proposed by considering the amounts of iron ions present at both tetrahedral and octahedral interstitial sites in the spinel lattice. Confirmation of the proposed distributions was done by estimating quantitatively the lattice parameters for these compositions and comparing their values with those of the experimentally observed ones. |
| doi_str_mv | 10.1016/J.MATERRESBULL.2014.04.072 |
| format | Article |
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Mahesh ; Choudary, G.S.V.R.K. ; Rao, K.H. ; Reddy, V.R.</creator><creatorcontrib>Prameela, P. ; Kumar, A. Mahesh ; Choudary, G.S.V.R.K. ; Rao, K.H. ; Reddy, V.R.</creatorcontrib><description>Highlights: • Occupancy of copper ions at about 20% towards tetrahedral sites. • Distribution is proposed on the basis of % of Fe ions at both A and B sites. • Distribution is checked by estimating the theoretical lattice constant values. - Abstract: The nanoparticles of Ni{sub 1−x}Cu{sub x}Zn{sub 0.35}Fe{sub 2}O{sub 4} were synthesized by sol–gel method using polyvinyl alcohol as a chelating agent. X-ray diffraction patterns of all the samples confirmed the single phase spinel structure. The site occupancy of copper in the nanosized nickel–zinc ferrite spinels was investigated with the help of in-field Mössbauer spectroscopy. Cation distribution for the whole series of compositions was proposed by considering the amounts of iron ions present at both tetrahedral and octahedral interstitial sites in the spinel lattice. Confirmation of the proposed distributions was done by estimating quantitatively the lattice parameters for these compositions and comparing their values with those of the experimentally observed ones.</description><identifier>ISSN: 0025-5408</identifier><identifier>EISSN: 1873-4227</identifier><identifier>DOI: 10.1016/J.MATERRESBULL.2014.04.072</identifier><language>eng</language><publisher>United States</publisher><subject>ABSORPTION SPECTROSCOPY ; CATIONS ; COMPARATIVE EVALUATIONS ; CONCENTRATION RATIO ; COPPER COMPOUNDS ; COPPER IONS ; FERRITES ; IRON 57 ; IRON IONS ; LATTICE PARAMETERS ; MATERIALS SCIENCE ; MOESSBAUER EFFECT ; NANOPARTICLES ; NANOSTRUCTURES ; NICKEL COMPOUNDS ; PVA ; SOL-GEL PROCESS ; SPINELS ; X-RAY DIFFRACTION ; ZINC COMPOUNDS</subject><ispartof>Materials research bulletin, 2014-11, Vol.59</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22420599$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Prameela, P.</creatorcontrib><creatorcontrib>Kumar, A. Mahesh</creatorcontrib><creatorcontrib>Choudary, G.S.V.R.K.</creatorcontrib><creatorcontrib>Rao, K.H.</creatorcontrib><creatorcontrib>Reddy, V.R.</creatorcontrib><title>Cation distribution in Ni–Cu–Zn nanoferrites from {sup 57}Fe in-field Mössbauer spectra</title><title>Materials research bulletin</title><description>Highlights: • Occupancy of copper ions at about 20% towards tetrahedral sites. • Distribution is proposed on the basis of % of Fe ions at both A and B sites. • Distribution is checked by estimating the theoretical lattice constant values. - Abstract: The nanoparticles of Ni{sub 1−x}Cu{sub x}Zn{sub 0.35}Fe{sub 2}O{sub 4} were synthesized by sol–gel method using polyvinyl alcohol as a chelating agent. X-ray diffraction patterns of all the samples confirmed the single phase spinel structure. The site occupancy of copper in the nanosized nickel–zinc ferrite spinels was investigated with the help of in-field Mössbauer spectroscopy. Cation distribution for the whole series of compositions was proposed by considering the amounts of iron ions present at both tetrahedral and octahedral interstitial sites in the spinel lattice. Confirmation of the proposed distributions was done by estimating quantitatively the lattice parameters for these compositions and comparing their values with those of the experimentally observed ones.</description><subject>ABSORPTION SPECTROSCOPY</subject><subject>CATIONS</subject><subject>COMPARATIVE EVALUATIONS</subject><subject>CONCENTRATION RATIO</subject><subject>COPPER COMPOUNDS</subject><subject>COPPER IONS</subject><subject>FERRITES</subject><subject>IRON 57</subject><subject>IRON IONS</subject><subject>LATTICE PARAMETERS</subject><subject>MATERIALS SCIENCE</subject><subject>MOESSBAUER EFFECT</subject><subject>NANOPARTICLES</subject><subject>NANOSTRUCTURES</subject><subject>NICKEL COMPOUNDS</subject><subject>PVA</subject><subject>SOL-GEL PROCESS</subject><subject>SPINELS</subject><subject>X-RAY DIFFRACTION</subject><subject>ZINC COMPOUNDS</subject><issn>0025-5408</issn><issn>1873-4227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNotjl1Kw0AcxBdRsFbvsOhz4u4_2a_HGtqqpAq1vohQtvuBK3VTssmTCN7Bu3gBb-JJDCoMMwz8GAahU0pySig_v84Xk9V0uZzeXdzXdQ6EljkZJGAPjagURVYCiH00IgRYxkoiD9FRSs-EkFIKMUKPle5CE7ENqWvDpv8tIeKb8P3-UfWDPUQcdWy8a9vQuYR927zg19TvMBNvMzfAmQ9ua_Hi6zOlje5di9POma7Vx-jA621yJ_85RqvZdFVdZvXt_Kqa1FmjZJcpBlop5Y23mhurCuqNFF5y7jTl2hekVIpazcA6C4opMsCSbbTmAIrTYozO_mab1IV1MsNN82SaGIcTa4ASCFOq-AFOy1sR</recordid><startdate>20141115</startdate><enddate>20141115</enddate><creator>Prameela, P.</creator><creator>Kumar, A. 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Mahesh</creatorcontrib><creatorcontrib>Choudary, G.S.V.R.K.</creatorcontrib><creatorcontrib>Rao, K.H.</creatorcontrib><creatorcontrib>Reddy, V.R.</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Materials research bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Prameela, P.</au><au>Kumar, A. Mahesh</au><au>Choudary, G.S.V.R.K.</au><au>Rao, K.H.</au><au>Reddy, V.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cation distribution in Ni–Cu–Zn nanoferrites from {sup 57}Fe in-field Mössbauer spectra</atitle><jtitle>Materials research bulletin</jtitle><date>2014-11-15</date><risdate>2014</risdate><volume>59</volume><issn>0025-5408</issn><eissn>1873-4227</eissn><abstract>Highlights: • Occupancy of copper ions at about 20% towards tetrahedral sites. • Distribution is proposed on the basis of % of Fe ions at both A and B sites. • Distribution is checked by estimating the theoretical lattice constant values. - Abstract: The nanoparticles of Ni{sub 1−x}Cu{sub x}Zn{sub 0.35}Fe{sub 2}O{sub 4} were synthesized by sol–gel method using polyvinyl alcohol as a chelating agent. X-ray diffraction patterns of all the samples confirmed the single phase spinel structure. The site occupancy of copper in the nanosized nickel–zinc ferrite spinels was investigated with the help of in-field Mössbauer spectroscopy. Cation distribution for the whole series of compositions was proposed by considering the amounts of iron ions present at both tetrahedral and octahedral interstitial sites in the spinel lattice. Confirmation of the proposed distributions was done by estimating quantitatively the lattice parameters for these compositions and comparing their values with those of the experimentally observed ones.</abstract><cop>United States</cop><doi>10.1016/J.MATERRESBULL.2014.04.072</doi></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | ABSORPTION SPECTROSCOPY CATIONS COMPARATIVE EVALUATIONS CONCENTRATION RATIO COPPER COMPOUNDS COPPER IONS FERRITES IRON 57 IRON IONS LATTICE PARAMETERS MATERIALS SCIENCE MOESSBAUER EFFECT NANOPARTICLES NANOSTRUCTURES NICKEL COMPOUNDS PVA SOL-GEL PROCESS SPINELS X-RAY DIFFRACTION ZINC COMPOUNDS |
| title | Cation distribution in Ni–Cu–Zn nanoferrites from {sup 57}Fe in-field Mössbauer spectra |
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