Selective and Controlled Synthesis of α- and β-Cobalt Hydroxides in Highly Developed Hexagonal Platelets
Citations Over TimeTop 10% of 2005 papers
Abstract
We report on the controlled synthesis of single-crystal platelets of alpha- and beta-Co(OH)2 via homogeneous precipitation using hexamethylenetetramine as a hydrolysis agent. The alpha- and beta-Co(OH)2 hexagonal platelets of several micrometers in width and about 15 nm in thickness were reproducibly yielded in rather dilute CoCl2 solutions in the presence and absence of NaCl at 90 degrees C, respectively. The phase and size control of the products were achieved by varying both CoCl2 and NaCl concentrations. Polarized optical microscope observations revealed clear liquid crystallinity of colloidal suspensions of these high aspect-ratio platelets. The as-prepared alpha-Co(OH)2 containing interlayer chloride ions was intercalated with various inorganic or organic anions, keeping its high crystallinity and hexagonal platelike morphology.
Related Papers
- → The first metal–organic framework containing an unprecedented in situ-generated C-substituted hexamethylenetetramine ligand(2011)7 cited
- → NMR study on self-assembled cage complex of hexamethylenetetramine and cucurbit[n]urils(2003)13 cited
- [New colorimetric reaction in the determination of formaldehyde, triformaldehyde, hexamethylenetetramine and hexamethylenetetramine anhydromethylencitrate].(1952)
- → ChemInform Abstract: Sponge‐Like Silver Obtained by Decomposition of Silver Nitrate Hexamethylenetetramine Complex.(2016)
- → (80)Hexamethylenetetramine Resins.I. The Structure of the Addition Compounds of Hexamethylenetetramine and Phenols.(1950)