Synthesis of cadmium(II) hydroxide, cadmium(II) carbonate and cadmium(II) oxide nanoparticles; investigation of intermediate products

For the first time the flower-like cadmium(II) coordination compound, [Cd(2,2'-bpy)(ftfa) 2 ] n (1), (2,2'-bpy = 2,2'-bipyridine; ftfa = furoyltrifluoroacetonate) is synthesized sonochemically. The new nano-structure was characterized by scanning electron microscopy, X-ray powder diffraction, elemental analyses and IR spectroscopy. Single crystalline material is obtained using a heat gradient applied to a solution of the reagents. The thermal stability of compound is studied by thermogravimetric and differential thermal analyses. After calcinations of nanosized 1 at 400°C, pure phase nano-sized Cd(II) oxide was produced. The average size of the nanoparticles is estimated by the Scherrer equation (diameter & 25 nm). The morphology and size of the prepared Cd(II)O samples are examined by SEM.

Section: Resultssupporting

confidence: 91%

Sonochemical Synthesis and Characterization of the First Flower-Like Cadmium(II) Coordination Compound: New Precursor to Produce Pure Phase Nano-Sized Cadmium(II) Oxide

Hanifehpour

Mirtamizdoust

Joo

2012

“…Because of these interesting applications, efforts to prepare nanoparticles of CdO using a variety of methods have been reported in the literature. Among them solvothermal synthesis [27], sol-gel [28], and a microemulsion method [29] have been reported [30][31][32][33][34][35]. In this paper we describe a simple method for the production of CdO nanoparticles based on the rapid pyrolysis of a new Cd(II)-coordination polymer, [Cd(l-2-pyc)(l-I)] n 1, as a precursor.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cadmium(II) Oxide Nanoparticles from a New One-Dimensional Cadmium(II) Coordination Polymer Precursor; Spectroscopic and Thermal Analysis Studies

Payehghadr

Safarifard

Ramazani

et al. 2012

Self Cite

A one-dimensional Cd(II) coordination polymer containing 2-pyridinecarboxylate (2-pyc -) and iodide anions [Cd(l-2-pyc)(l-I)] n (1), is synthesized and characterized by elemental analysis, IR spectroscopy, thermal analysis and X-ray crystallography. The single-crystal X-ray data show that the coordination number for the Cd 2? ion is five. The thermal stability of 1 was studied by thermogravimetry and differential thermal analyzes. Cd(II)O nanoparticles were prepared by direct calcination of 1 at different temperatures. The Cd(II)O nanoparticles were characterized by X-ray powder diffraction and scanning electron microscopy. The results show that the morphology of the Cd(II)O nanoparticles is dependent upon the thermolysis temperature.

“…It is well known that materials with nano-scale grain size show different properties relative to the same material in bulk form [19][20][21]. Many different synthetic approaches have been proffered for the synthesis of nanostructured materials; e.g., chemical vapor deposition, chemical bath deposition, hydrothermal method, homogeneous precipitation in an organic matrix, and sol-gel method [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Lead(II) Minoxidil Coordination Polymer: A New Precursor for Lead(II) Oxide and Lead(II) Hydroxyl Bromide

Ranjbar

Çelik

Najafi

et al. 2011

A new lead(II) coordination polymer, [PbBr 2 (C 9 H 15 N 5 O)] n (1), where C 9 H 15 N 5 O is (2,4-diamino-6-piperidine-1-yl) pyrimidine N-oxide (minoxidil) is synthesized and characterized. Polymer 1 is synthesized in methanol by sonochemical and hydrothermal methods from lead(II) acetate, KBr and the minoxidil ligand. The crystal structure of [PbBr 2 (C 9 H 15 N 5 O)] n indicates a syndiotactic coordination polymer. The Pb(II) atom lies on a mirror plane; the mirror plane is perpendicular to the pyrimidine ring bisecting the piperidine ring. N-HÁÁÁO intramolecular and C-HÁÁÁBr, N-HÁÁÁN strong intermolecular interactions were observed. Micro-rods of PbO and nano-plates of PbOHBr were prepared by thermal decomposition of the nano-structured [PbBr 2 (C 9 H 15 N 5 O)] n as a precursor. Characterization of the products was carried out using X-ray crystallography, elemental analysis, FTIR spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and thermal analysis. The sonochemical method resulted in a significant reduction of reaction time, reaction temperature and particle sizes of the products.