Influence of calcinations temperature on physical properties of the nanocomposites containing spinel and CuO phases
Nanocomposites containing spinel and CuO phases have been synthesized by sol–gel method using Cu(II), Ni(II) and Fe(III) in a basic medium. The effect of calcinations temperature on the physical properties of the nanocomposites has been investigated by X-ray diffraction (XRD), Fourier transform infr...
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| Veröffentlicht in: | Journal of alloys and compounds 2010-04, Vol.494 (1), p.275-284 |
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| creator | Srivastava, Manish Ojha, Animesh K. Chaubey, S. Sharma, Prashant K. Pandey, Avinash C. |
| description | Nanocomposites containing spinel and CuO phases have been synthesized by sol–gel method using Cu(II), Ni(II) and Fe(III) in a basic medium. The effect of calcinations temperature on the physical properties of the nanocomposites has been investigated by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), micro-Raman spectroscopy (RS), differential scanning calorimetery (DSC)/thermogravemetric analysis (TGA), diffuse reflectance spectroscopy (DRS), scanning electron microscope (SEM), high resolution transmission electron microscope (HR-TEM) and vibrating sample magnetometer (VSM). The XRD pattern of nanocomposites synthesized at different calcinations temperature reveals spinel and CuO phases. The particle size of the nanocomposites is increasing with increasing the calcinations temperature. The band gap of synthesized nanocomposites has been calculated using DRS method. The prepared nanocomposites exhibit semiconducting nature with band gap values, 1.9–2.24
eV. The magnetic properties of nanocomposites are also measured at room temperature and the values of saturation magnetization (Ms), remanent magnetization (Mr) and coercivity are found enhanced with the calcinations temperature. |
| doi_str_mv | 10.1016/j.jallcom.2010.01.008 |
| format | Article |
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eV. The magnetic properties of nanocomposites are also measured at room temperature and the values of saturation magnetization (Ms), remanent magnetization (Mr) and coercivity are found enhanced with the calcinations temperature.</description><subject>CALCINATION</subject><subject>Calcination effect</subject><subject>CALCINES</subject><subject>COMPOSITES</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>COPPER OXIDE</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Domain effects, magnetization curves, and hysteresis</subject><subject>Exact sciences and technology</subject><subject>MAGNETIC PROPERTIES</subject><subject>Magnetic properties and materials</subject><subject>Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects</subject><subject>Materials science</subject><subject>Materials synthesis; materials processing</subject><subject>Nanocomposites</subject><subject>Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity</subject><subject>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</subject><subject>Optical properties of bulk materials and thin films</subject><subject>PHASES</subject><subject>PHYSICAL PROPERTIES</subject><subject>Physics</subject><subject>PROPERTIES</subject><subject>SCANNING ELECTRON MICROSCOPY</subject><subject>Spectroscopy</subject><subject>Spinel</subject><subject>SPINELS</subject><subject>Spinel–CuO</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqFkEFrHCEYhqW00G2an1DwUnqarY4z6pxCWZJ0IZBLchbX-UxcZnXi5wTy7-OyS645Ca_P-336EPKLszVnXP7dr_d2mlw6rFtWM8bXjOkvZMW1Ek0n5fCVrNjQ9o0WWn8nPxD3jDE-CL4iuI1-WiA6oMlTZycXoi0hRaQFDjNkW5Zc7yKdn98wVIDOOdW8BMBjpTwDjTamun5OGEpNXYrFhhjiE8U5RJiojSPdLPd1hkXAn-SbtxPC5fm8II831w-b_83d_e128--ucZ1QpQHP2pErwUelnfTKip2zvd4J62ompWP9jms_tFLu9KDdMCjfec60Uswq4OKC_DnNrS9-WQCLOQR0ME02QlrQaNl1rO25qGR_Il1OiBm8mXM42PxmODNHx2Zvzo7N0bFh3FTHtff7vMFiVeOzjS7gR7kVleVaVu7qxEH97muAbNCFo_QxZHDFjCl8sukdbYOXKQ</recordid><startdate>20100402</startdate><enddate>20100402</enddate><creator>Srivastava, Manish</creator><creator>Ojha, Animesh K.</creator><creator>Chaubey, S.</creator><creator>Sharma, Prashant K.</creator><creator>Pandey, Avinash C.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8G</scope><scope>JG9</scope></search><sort><creationdate>20100402</creationdate><title>Influence of calcinations temperature on physical properties of the nanocomposites containing spinel and CuO phases</title><author>Srivastava, Manish ; Ojha, Animesh K. ; Chaubey, S. ; Sharma, Prashant K. ; Pandey, Avinash C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c437t-ef02d1731d78c6f7a3bca58b3ac31d66c05b18f9266b898c997f4f108770a7e13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>CALCINATION</topic><topic>Calcination effect</topic><topic>CALCINES</topic><topic>COMPOSITES</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>COPPER OXIDE</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Domain effects, magnetization curves, and hysteresis</topic><topic>Exact sciences and technology</topic><topic>MAGNETIC PROPERTIES</topic><topic>Magnetic properties and materials</topic><topic>Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects</topic><topic>Materials science</topic><topic>Materials synthesis; materials processing</topic><topic>Nanocomposites</topic><topic>Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity</topic><topic>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</topic><topic>Optical properties of bulk materials and thin films</topic><topic>PHASES</topic><topic>PHYSICAL PROPERTIES</topic><topic>Physics</topic><topic>PROPERTIES</topic><topic>SCANNING ELECTRON MICROSCOPY</topic><topic>Spectroscopy</topic><topic>Spinel</topic><topic>SPINELS</topic><topic>Spinel–CuO</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Srivastava, Manish</creatorcontrib><creatorcontrib>Ojha, Animesh K.</creatorcontrib><creatorcontrib>Chaubey, S.</creatorcontrib><creatorcontrib>Sharma, Prashant K.</creatorcontrib><creatorcontrib>Pandey, Avinash C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Srivastava, Manish</au><au>Ojha, Animesh K.</au><au>Chaubey, S.</au><au>Sharma, Prashant K.</au><au>Pandey, Avinash C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of calcinations temperature on physical properties of the nanocomposites containing spinel and CuO phases</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2010-04-02</date><risdate>2010</risdate><volume>494</volume><issue>1</issue><spage>275</spage><epage>284</epage><pages>275-284</pages><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>Nanocomposites containing spinel and CuO phases have been synthesized by sol–gel method using Cu(II), Ni(II) and Fe(III) in a basic medium. The effect of calcinations temperature on the physical properties of the nanocomposites has been investigated by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), micro-Raman spectroscopy (RS), differential scanning calorimetery (DSC)/thermogravemetric analysis (TGA), diffuse reflectance spectroscopy (DRS), scanning electron microscope (SEM), high resolution transmission electron microscope (HR-TEM) and vibrating sample magnetometer (VSM). The XRD pattern of nanocomposites synthesized at different calcinations temperature reveals spinel and CuO phases. The particle size of the nanocomposites is increasing with increasing the calcinations temperature. The band gap of synthesized nanocomposites has been calculated using DRS method. The prepared nanocomposites exhibit semiconducting nature with band gap values, 1.9–2.24
eV. The magnetic properties of nanocomposites are also measured at room temperature and the values of saturation magnetization (Ms), remanent magnetization (Mr) and coercivity are found enhanced with the calcinations temperature.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2010.01.008</doi><tpages>10</tpages></addata></record> |
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| subjects | CALCINATION Calcination effect CALCINES COMPOSITES Condensed matter: electronic structure, electrical, magnetic, and optical properties COPPER OXIDE Cross-disciplinary physics: materials science rheology Domain effects, magnetization curves, and hysteresis Exact sciences and technology MAGNETIC PROPERTIES Magnetic properties and materials Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects Materials science Materials synthesis materials processing Nanocomposites Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of bulk materials and thin films PHASES PHYSICAL PROPERTIES Physics PROPERTIES SCANNING ELECTRON MICROSCOPY Spectroscopy Spinel SPINELS Spinel–CuO |
| title | Influence of calcinations temperature on physical properties of the nanocomposites containing spinel and CuO phases |
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