Thermal transformations of iron(III)-nickel(II) mixed oxide gels

Rao, V. Sitakara; Rajendran, S.; Maiti, Himadri Sekhar

doi:10.1007/bf00552271

Cited by 3 publications

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“…This has been attributed to the release of water during the decomposition of nickel hydroxide. 12 To the best of our knowledge, there are not many reports on the thermal decomposition mechanistic studies of nickel hydroxide. The aim of this article is to examine the evolution of nickel oxide from nickel hydroxide during thermal treatment of the sample at different temperatures using powder X-ray diffraction patterns.…”

Section: Introductionmentioning

confidence: 99%

“…The thermal decomposition of nickel hydroxide to synthesize nickel oxide has been widely studied. − The role of preparative conditions on the thermal decomposition and its influence on the changes on the powder X-ray diffraction pattern have been reported. , During the thermal decomposition of nickel hydroxide, an endothermic peak in the differential thermal analysis of nickel hydroxide has been observed. This has been attributed to the release of water during the decomposition of nickel hydroxide . To the best of our knowledge, there are not many reports on the thermal decomposition mechanistic studies of nickel hydroxide.…”

Section: Introductionmentioning

confidence: 99%

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X-ray Diffraction Studies on the Thermal Decomposition Mechanism of Nickel Hydroxide

Ramesh

2009

J. Phys. Chem. B

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Nickel hydroxide samples were prepared by using sodium hydroxide and ammonium hydroxide as precipitating agents. The powder X-ray diffraction pattern shows that the degrees of crystallinity in these samples are quite different. The thermal decomposition mechanism of these two nickel hydroxide samples has been determined using powder X-ray diffraction and thermogravimetric analysis. We observe that the transformation of nickel hydroxide to nickel oxide in the crystalline sample is via a two-phase mixture, whereas in a poorly ordered sample, it is through a single phase. This indicates that the decomposition mechanism mainly depends on the preparative conditions and the nature of the sample.

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Section: Introductionmentioning

confidence: 99%