Precipitation of Nickel Hydroxides from Nickel Dodecylsulphate

Abstract:

Article Preview

Classical precipitation techniques applied to a nickel di-dodecylsulphate Ni(DS)2 precursor were developed. In the range of concentrations studied this precursor forms direct micelles in water. In pH-controlled double jet precipitation with soda at 60°C, the pure a, poorly crystallised bbc and well crystallised b phases are successively obtained by pH shifts from 8 to 11, whereas the platelet morphology remains similar. In the same conditions, classical salts never lead to a phase and the particle size and morphology is pH dependent. Hydroxide precipitation by ammonia decomplexation, via heating at 60°C, Ni(DS)2 leads to well-calibrated stacks of b- Ni(OH)2 nanopancakes (300 nm in diameter and 200 nm stacking length) whereas classical salts lead to micrometric particles characterised by thin interconnected walls.

Info:

Periodical:

Solid State Phenomena (Volume 106)

Edited by:

Radu Robert Piticescu, Witold Lojkowski and John R. Blizzard

Pages:

35-40

DOI:

10.4028/www.scientific.net/SSP.106.35

Citation:

C. Coudun and J.-F. Hochepied, "Precipitation of Nickel Hydroxides from Nickel Dodecylsulphate", Solid State Phenomena, Vol. 106, pp. 35-40, 2005

Online since:

September 2005

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.