Scalable synthesis and characterization of cobalt sodium tartrate nanowires with adjustable diameters

Journal Article · Tue Nov 15 04:00:00 UTC 2011 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2011.09.009· OSTI ID:21580076

Lan, Chen; Shaochun, Tang; Vongehr, Sascha; Kun, Hu ^[1]

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1. National Laboratory of Solid State Microstructures, Department of Materials Science and Engineering, Nanjing University, Nanjing 210093 (China)

Cobalt sodium tartrate nanowires are synthesized by a simple hydrothermal method using ethanol-water mixed solvents. The smooth wires are on average 30 {mu}m long. Their diameters are narrowly size distributed with a controllable average in the range from 80 to 250 nm. Interestingly, after the initial two hours, the diameter decreases with further reaction time. The tartrate anions act as coordination ligands with all six oxygen atoms participating in the coordination. The Co{sup 2+} and Na{sup +} ions chelate with the O atoms from the carboxylate and hydroxyl groups in the tartrate ligands. The ethanol participates in the formation of pi bonds. The cobalt is divalent while the sodium is monovalent in their tartrates. The respective crystal structures of these metal tartrates are incompatible, and the wires are therefore amorphous. The influence of the reaction time, sodium tartrate concentration, pH value, and the ethanol water ratio are studied in detail. - Graphical abstract: Cobalt sodium tartrate nanowires with smooth surfaces are synthesized hydrothermally. Their narrowly distributed diameters decrease with reaction time after initial two hours and are controllable from 80 to 250 nm. Highlights: > Cobalt sodium tartrate nanowires are synthesized by a simple hydrothermal route. > Nanowires are smooth, amorphous, and up to 30 {mu}m long. > Diameters of the wires are controllable; they decrease with the reaction time.

• OSTI ID: 21580076
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 11 Vol. 184; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ALCOHOLS
ALKALI METALS
ANIONS
CARBOXYLIC ACID SALTS
CHARGED PARTICLES
COBALT
COBALT IONS
CRYSTAL STRUCTURE
DISPERSIONS
ELEMENTS
ETHANOL
HYDROGEN COMPOUNDS
HYDROTHERMAL SYNTHESIS
HYDROXIDES
HYDROXY COMPOUNDS
IONS
LIGANDS
METALS
MIXED SOLVENTS
MIXTURES
NANOSTRUCTURES
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXYGEN COMPOUNDS
QUANTUM WIRES
SODIUM
SODIUM IONS
SOLVENTS
SYNTHESIS
TARTRATES
TRANSITION ELEMENTS