Thermochemical studies on red and yellow orthorhombic and on red hexagonal mercuric oxide

Vanderzee, Cecil E.; Rodenburg, M. L. N.; Berg, R.L. Von

doi:10.1016/0021-9614(74)90202-x

Cited by 21 publications

(1 citation statement)

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“…From figure 6 it is difficult to observe inhomogeneity within the same micrograph due to the solution route synthesis with acetamide precursor and is very fine and the particle size must be in nano- range specially for selenium-metal and mercuric oxide samples. The grain size for nano-oxides were calculated according to 'Scherrer's formula' (Scherrer 1918;Vanderzee et al 1974;Li et al 1997;Jenkins and Snyder 1996;Locha et al 2002) …”

Section: Scanning Electron and Atomic Force Microscopymentioning

confidence: 99%

Infrared spectra, Raman laser, XRD, DSC/TGA and SEM investigations on the preparations of selenium metal, (Sb2O3, Ga2O3, SnO and HgO) oxides and lead carbonate with pure grade using acetamide precursors

Refat

Elsabawy

2011

Bull Mater Sci

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Ga 2 O 3 , Se metal, SnO, Sb 2 O 3 , HgO and PbCO 3 are formed upon the reaction of acetamide aqueous solutions with Ga(NO 3 ) 3 , SeO 2 , SnCl 2 , SbCl 3 , HgCl 2 and Pb(NO 3 ) 2 , respectively, at 90°C. Different amorphous or crystalline phases can be obtained depending upon the experimental conditions (molar ratios, metal salts and temperature). The chemical mechanisms for the formations of this metal, oxides or carbonate are discussed and the X-ray diffraction, scanning electron microscopy (SEM) and atomic force microscope (AFM) are described. The type of metal ions plays an important role in the decomposition of acetamide, leading to the formation of solid stable (metal, oxides or carbonate), soluble and gases species. These new precursors are more stable preventing the rapid precipitation of metal, oxides or carbonate. Furthermore, this route allows the formation of pure compounds in solutions.

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Section: Scanning Electron and Atomic Force Microscopymentioning

confidence: 99%