NDLI: Effect of Mn-substitution on the structure and magnetic properties of CoFe$_{2}$O$_{4}$/SiO$

Content Provider	Springer Nature Link
Author	Shan, Meiling Du, Yuwei Ding, Shuo Wang, Li Hua, Jie Wang, Jin
Copyright Year	2017
Abstract	Mn-substituted CoFe$_{2}$O$_{4}$/SiO$_{2}$ nanocomposites were prepared by sol–gel method using Mn-substituting for Co or Fe. The microstructural, morphological, and magnetic characterizations were carried out by X-ray diffraction, transmission electron microscope, X-ray photoelectron spectroscopy, vibrating sample magnetometer, and Mössbauer spectroscopy. It can be found that the Mn-substituted CoFe$_{2}$O$_{4}$ particles in obtained nanocomposites exhibit cubic spinel structure and the substitution of Co or Fe by Mn increase the lattice constant. The results of X-ray photoelectron spectroscopy, vibrating sample magnetometer and Mössbauer spectroscopy demonstrate that Mn ions exists as Mn$^{2+}$ and tend to preferentially occupy octahedral A sites when it replaces Co ions as in Co$_{0.8}$Mn$_{0.2}$Fe$_{2}$O$_{4}$/SiO$_{2}$ nanocomposites, which leads to the saturation magnetization Ms increasing and coercivity Hc decreasing. While Mn ions valence state is +3 as it substitutes to Fe ions as in CoFe$_{1.8}$Mn$_{0.2}$O$_{4}$/SiO$_{2}$. The presence of Mn$^{3+}$ induces a decrease in Ms and Hc.
Starting Page	712
Ending Page	717
Page Count	6
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	82
Issue Number	3
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2017-03-22
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mn substitution CoFe$_{2}$O$_{4}$/SiO$_{2}$ Nanocomposite Structure Magnetic properties Ceramics, Glass, Composites, Natural Materials Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Characterization and magnetic exchange observation for CoFe$_{2}$O$_{4}$–CoFe$_{2}$ nanocomposite microfibers

Structure and magnetic properties of CoFe$_{2}$O$_{4}$ ferrites synthesized by sol–gel and microwave calcination

Preparation and characterization of nanocrystalline CoFe$_{2}$O$_{4}$ deposited on SiO$_{2}$: in situ sol–gel process

Nanocomposites NiFe$_{2}$O$_{4}$/SiO$_{2}$ and CoFe$_{2}$O$_{4}$/SiO$_{2}$-Preparation by Sol-Gel Method and Physical Properties

Characterization and application of Fe$_{3}$O$_{4}$/SiO$_{2}$ nanocomposites

Fe$_{3}$O$_{4}$–SiO$_{2}$ nanocomposites obtained via alkoxide and colloidal route

Magnetic properties of Co$_{1+y}$Al$_{2−y}$O$_{4}$–SiO$_{2}$ nanocomposites synthesized by sol–gel method

Sol–gel synthesis of Mn$_{2}$O$_{3}$/Al$_{2}$O$_{3}$/SiO$_{2}$ hybrid nanocomposite and application for removal of organic dye

Nanocomposites Fe$_{2}$O$_{3}$/SiO$_{2}$-preparation by sol-gel method and physical properties

Effect of Mn-substitution on the structure and magnetic properties of CoFe$_{2}$O$_{4}$/SiO$_{2}$ nanocomposites

Similar Documents

Characterization and magnetic exchange observation for CoFe$_{2}$O$_{4}$–CoFe$_{2}$ nanocomposite microfibers

Structure and magnetic properties of CoFe$_{2}$O$_{4}$ ferrites synthesized by sol–gel and microwave calcination

Preparation and characterization of nanocrystalline CoFe$_{2}$O$_{4}$ deposited on SiO$_{2}$: in situ sol–gel process

Nanocomposites NiFe$_{2}$O$_{4}$/SiO$_{2}$ and CoFe$_{2}$O$_{4}$/SiO$_{2}$-Preparation by Sol-Gel Method and Physical Properties

Characterization and application of Fe$_{3}$O$_{4}$/SiO$_{2}$ nanocomposites

Fe$_{3}$O$_{4}$–SiO$_{2}$ nanocomposites obtained via alkoxide and colloidal route

Magnetic properties of Co$_{1+y}$Al$_{2−y}$O$_{4}$–SiO$_{2}$ nanocomposites synthesized by sol–gel method

Sol–gel synthesis of Mn$_{2}$O$_{3}$/Al$_{2}$O$_{3}$/SiO$_{2}$ hybrid nanocomposite and application for removal of organic dye

Nanocomposites Fe$_{2}$O$_{3}$/SiO$_{2}$-preparation by sol-gel method and physical properties

Effect of Mn-substitution on the structure and magnetic properties of CoFe$_{2}$O$_{4}$/SiO$_{2}$ nanocomposites