Bivalent Metal Hydroxides

Oswald, H. R.; Asper, R.

doi:10.1007/978-94-017-2750-1_3

Cited by 73 publications

(65 citation statements)

References 149 publications

(172 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cobalt hydroxide and cobalt hydroxynitrate samples were prepared by following the procedure reported elsewhere [6,11]. Cobalt nitrate solution (1 M, 50 mL) was added to sodium hydroxide (2 M, 100 mL) solution at 80 1C.…”

Section: Methodsmentioning

confidence: 99%

“…Metal hydroxide and hydroxysalts have been used in various applications such as catalysis, supercapacitors, rechargeable batteries, magnetic materials, ceramics, ion exchangers and organicinorganic nanohybrids [2][3][4][5]. The bivalent metal hydroxides and hydroxysalts derive their structure from mineral brucite-Mg(OH) 2 [6][7][8]. The crystal structure of bivalent metal hydroxide consists of a hexagonal close packing of hydroxyl ions, in which alternative layers of octahedral sites are occupied by the divalent metal ions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polytypic transformations during the thermal decomposition of cobalt hydroxide and cobalt hydroxynitrate

Ramesh

2010

Journal of Solid State Chemistry

View full text Add to dashboard Cite

a b s t r a c tThe isothermal decomposition of cobalt hydroxide and cobalt hydroxynitrate at different intervals of temperature leads to the formation of Co 3 O 4 . The phase evolution during the decomposition process was monitored using powder X-ray diffraction. The transformation of cobalt hydroxide to cobalt oxide occurs via three phase mixture while cobalt hydroxynitrate to cobalt oxide occurs through a two phase mixture. The nature of the sample and its preparation method controls the decomposition mechanism. The comparison of topotactical relationship between the precursors to the decomposed product has been reported in relation to polytypism.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polytypic transformations during the thermal decomposition of cobalt hydroxide and cobalt hydroxynitrate

Ramesh

2010

Journal of Solid State Chemistry

View full text Add to dashboard Cite

show abstract

“…The magnesium cation is six-fold coordinated by hydroxyl groups, thus forming Mg(OH) 6 octahedra. Complete crystal structure descriptions can be found in the specialized literature [17,[19][20][21]. Such a layered crystal structure is an advantage for platelet-shaped crystallization of the compound.…”

Section: Introductionmentioning

confidence: 99%

“…Magnesium hydroxide can be obtained by several methods [17,21,22], i.e. hydration of magnesium oxide MgO, [22,23], precipitation of a magnesium salt with an alkaline solution [24][25][26][27], electrolysis of an aqueous magnesium salt solution.…”

Section: Introductionmentioning

confidence: 99%

Morphological study of magnesium hydroxide nanoparticles precipitated in dilute aqueous solution

Henrist

Mathieu

Vogels

et al. 2003

Journal of Crystal Growth

330

216

View full text Add to dashboard Cite

Among other applications, magnesium hydroxide is commonly used as a flame-retardant filler in composite materials, as well as a precursor for magnesium oxide refractory ceramic. The microstructure of the powder is of prime importance in both technical applications. The influence of synthesis parameters on the morphological characteristics of magnesium hydroxide nanoparticles precipitated in dilute aqueous medium was studied. Several parameters were envisaged such as chemical nature of the base precipitant, type of counter-ion, temperature and hydrothermal treatment. Special attention was given to the obtaining of platelet-shaped, nanometric and de-agglomerated powders. The powders were characterized in terms of particle size distribution, crystal habits, morphology and ability to be redispersed in water. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen adsorption and laser diffusion analyses were used for this purpose. r

show abstract

“…The physical and chemical properties of bivalent Mg, Ca and 3d-metal hydroxides have been reviewed, and the exceptional behaviour of Cu(OH)2 compared to the other metal hydroxides has been worked out extensively by Oswald & Asper (1977). The electron-induced and thermal decomposition as well as the polymorphism of Cu(OH)2 have been investigated by Gfinter &Oswald (1970) andSch6nenberger, Giinter &Oswald (1971).…”

mentioning

confidence: 99%