Superparamagnetic MnFe2O4 Ferrite by Gel Combustion Synthesis Using TRIS as a Fuel: Influence of Oxidizer to Fuel Ratio

Autor: José Domingo Alarcón, A.A. Lopera, Tiago Bender Wermuth, Claudia García, E. A. Chavarriaga, Carlos Perez Bergmann, Sabrina Arcaro
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Self-Propagating High-Temperature Synthesis. 30:73-80
ISSN: 1934-788X
1061-3862
Popis: Manganese ferrite MnFe2O4 was synthesized by gel combustion synthesis using tris(hydroxymethyl)aminomethane (TRIS) as a fuel upon variation of oxidizer-to-fuel ratio Ψ and characterized by XRD, Raman spectra, and vibrating sample magnetometry (VSM). The measured values of saturation magnetization Ms = 27.70 emu g–1 and coercivity Hc = 86.87 Oe are indicative of superparamagnetiс behavior of synthesized materials. Our results also show that TRIS could be readily used as an alternative fuel to synthesize spinel ferrites through a one-step process of solution combustion synthesis.
Databáze: OpenAIRE