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Title: Combustion synthesis and properties of fine particle spinel manganites

Abstract

Fine particle spinel manganites have been prepared by thermal decomposition of the precursors N[sub 2]H[sub 5]M[sub 1/3]Mn[sub 2/3](N[sub 2]H[sub 3]COO)[sub 3][center dot]H[sub 2]O (M = Co and Ni) and M[sub 1/3]Mn[sub 2/3](N[sub 2]H[sub 3]COO)[sub 2][center dot]2H[sub 2]O (M = Mg and Zn), as well as by the combustion of redox mixtures containing M(II) nitrate (M = Mg, Co, Ni, Cu, and Zn), Mn(II) nitrate, and maleic hydrazide (MH) in the required molar ratio. Both the precursor and redox mixtures undergo self-propagating, gas-producing, exothermic reactions once ignited at 250-375[degrees]C to yield corresponding manganites in less than 5 min. Formation of single phase products was confirmed by X-ray powder diffraction patterns. The manganites are of submicrometer size and have surface area in the range 20-76 m[sup 2]/g. 25 refs., 3 figs., 3 tabs.

Authors:
;  [1]
  1. Indian Inst. of Science, Bangalore (India)
Publication Date:
OSTI Identifier:
6481822
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry; (United States)
Additional Journal Information:
Journal Volume: 102:2; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COBALT OXIDES; CHEMICAL PREPARATION; COPPER OXIDES; MAGNESIUM OXIDES; MANGANESE OXIDES; NICKEL OXIDES; ZINC OXIDES; COMBUSTION; PARTICLES; PYROLYSIS; SURFACE AREA; X-RAY DIFFRACTION; ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COBALT COMPOUNDS; COHERENT SCATTERING; COPPER COMPOUNDS; DECOMPOSITION; DIFFRACTION; MAGNESIUM COMPOUNDS; MANGANESE COMPOUNDS; NICKEL COMPOUNDS; OXIDATION; OXIDES; OXYGEN COMPOUNDS; SCATTERING; SURFACE PROPERTIES; SYNTHESIS; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPOUNDS; ZINC COMPOUNDS; 400800* - Combustion, Pyrolysis, & High-Temperature Chemistry

Citation Formats

Arul Dhas, N, and Patil, K C. Combustion synthesis and properties of fine particle spinel manganites. United States: N. p., 1993. Web. doi:10.1006/jssc.1993.1056.
Arul Dhas, N, & Patil, K C. Combustion synthesis and properties of fine particle spinel manganites. United States. https://doi.org/10.1006/jssc.1993.1056
Arul Dhas, N, and Patil, K C. 1993. "Combustion synthesis and properties of fine particle spinel manganites". United States. https://doi.org/10.1006/jssc.1993.1056.
@article{osti_6481822,
title = {Combustion synthesis and properties of fine particle spinel manganites},
author = {Arul Dhas, N and Patil, K C},
abstractNote = {Fine particle spinel manganites have been prepared by thermal decomposition of the precursors N[sub 2]H[sub 5]M[sub 1/3]Mn[sub 2/3](N[sub 2]H[sub 3]COO)[sub 3][center dot]H[sub 2]O (M = Co and Ni) and M[sub 1/3]Mn[sub 2/3](N[sub 2]H[sub 3]COO)[sub 2][center dot]2H[sub 2]O (M = Mg and Zn), as well as by the combustion of redox mixtures containing M(II) nitrate (M = Mg, Co, Ni, Cu, and Zn), Mn(II) nitrate, and maleic hydrazide (MH) in the required molar ratio. Both the precursor and redox mixtures undergo self-propagating, gas-producing, exothermic reactions once ignited at 250-375[degrees]C to yield corresponding manganites in less than 5 min. Formation of single phase products was confirmed by X-ray powder diffraction patterns. The manganites are of submicrometer size and have surface area in the range 20-76 m[sup 2]/g. 25 refs., 3 figs., 3 tabs.},
doi = {10.1006/jssc.1993.1056},
url = {https://www.osti.gov/biblio/6481822}, journal = {Journal of Solid State Chemistry; (United States)},
issn = {0022-4596},
number = ,
volume = 102:2,
place = {United States},
year = {Mon Feb 01 00:00:00 EST 1993},
month = {Mon Feb 01 00:00:00 EST 1993}
}