Shape Control of Cobalt Carbonate Particles by a Hydrothermal Process in a Mixed Solvent: An Efficient Precursor to Nanoporous Cobalt Oxide Architectures and Their Sensing Property

Shape-controlled synthesis of CoCO3 crystals has been achieved by a hydrothermal process in a mixed solvent of water and ethanol (or glycerol). Uniform CoCO3 crystals with novel structures can be fabricated by tuning the volume ratio of water and ethanol (or glycerol). The results demonstrated that...

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Bibliographic Details
Published inCrystal growth & design Vol. 9; no. 1; pp. 210 - 217
Main Authors Cong, Huai-Ping, Yu, Shu-Hong
Format Journal Article
LanguageEnglish
Published Washington,DC American Chemical Society 07.01.2009
Subjects
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Physics
Structure of solids and liquids; crystallography
Structure of specific crystalline solids
Cobalt oxide
Particle size
Reversible processes
Ethanol
Nanostructures
Cobalt
Precursor
Pore size
Hydrothermal synthesis
Carbonates
Microstructure
Nanoporosity
Crystal structure
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Summary:Shape-controlled synthesis of CoCO3 crystals has been achieved by a hydrothermal process in a mixed solvent of water and ethanol (or glycerol). Uniform CoCO3 crystals with novel structures can be fabricated by tuning the volume ratio of water and ethanol (or glycerol). The results demonstrated that the as-prepared CoCO3 crystal can act as an efficient precursor for production of nanoporous Co3O4 particles with pore sizes of 2.5 and 60 nm by calcination at 500 °C. The nanoporous Co3O4 particles show sensitive response and reversibility in sensing performance.
ISSN:1528-7483
1528-7505
DOI:10.1021/cg8003068