Development of pure and doped gamma ferric oxide | Zendy

M. R. Anantharaman | Zendy; K. Seshan | Zendy; S.N. Shringi | Zendy; H. V. Keer | Zendy

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Development of pure and doped gamma ferric oxide

Author(s) -

M. R. Anantharaman,

K. Seshan,

S.N. Shringi,

H. V. Keer

Publication year - 1984

Publication title -

bulletin of materials science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.35

H-Index - 72

eISSN - 0973-7669

pISSN - 0250-4707

DOI - 10.1007/bf02744170

Subject(s) - acicular , materials science , decomposition , thermal decomposition , goethite , ferrous , cobalt , inorganic chemistry , nitrogen , oxide , nickel , oxalate , doping , copper , metallurgy , chemistry , organic chemistry , microstructure , optoelectronics , adsorption

Optimum conditions and experimental details for the formation of γ-Fe2O3 from goethite have been worked out. In another method, a cheap complexing medium of starch was employed for precipitating acicular ferrous oxalate, which on decomposition in nitrogen and subsequent oxidation yielded acicular γ-Fe2O3. On the basis of thermal decomposition in dry and moist nitrogen,dta, xrd, gc and thermodynamic arguments, the mechanism of decomposition was elucidated. New materials obtained by doping γ-Fe2O3 with 1–16 atomic percent magnesiu, cobalt, nickel and copper, were synthesised and characterized.

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