Homogeneous precipitation from solution by urea hydrolysis: a novel chemical route to the a-hydroxides of nickel and cobalt
Data(s) |
01/08/1996
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Resumo |
Homogeneous precipitation from solution by hydrolysis of urea at elevated temperatures (T=120 degrees C) yields novel ammonia-intercalated alpha-type hydroxide phases of the formula M(OH)(x)(NH3)(0.4)(H2O)(y)(NO3)(2-x) where x=2, y=0.68 for M=Ni and x=1.85, y=0 for M=Co. These triple-layered hexagonal phases (a=3.08+/-0.01 Angstrom, c=21.7+/-0.05 Angstrom) are more crystalline than similar phases obtained by chemical precipitation or electrosynthesis. This method can be adapted as a convenient chemical route to the bulk synthesis of alpha-hydroxides. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/19770/1/Homogeneous_precipitation.pdf Dixit, Mridula and Subbanna, Gonur N and Kamath, Vishnu P (1996) Homogeneous precipitation from solution by urea hydrolysis: a novel chemical route to the a-hydroxides of nickel and cobalt. In: Journal of Materials Chemistry, 06 (08). pp. 1429-1432. |
Publicador |
Royal Society of Chemistry |
Relação |
http://www.rsc.org/publishing/journals/JM/article.asp?doi=JM9960601429 http://eprints.iisc.ernet.in/19770/ |
Palavras-Chave | #Materials Research Centre |
Tipo |
Journal Article PeerReviewed |