New misfit-layered cobalt oxide (CaOH)1.14CoO2

Ca-for-Sr substitution in the thermoelectric [(Sr,Ca)2(O,OH)2]q[CoO2] misfit-layered cobalt-oxide system

Calcium-for-strontium substituted samples of the misfit-layered cobalt-oxide system, [(Sr1 xCax)2 (O,OH)2]q[CoO2], were successfully synthesized up to x1⁄40.2 with a sample-encapsulation technique originally developed for the x1⁄40 end phase. While the x1⁄40 sample has a commensurate match between the two layer blocks (i.e. q1⁄40.5), isovalent Ca-for-Sr substitution induces latticemisfit (i.e. ...

Direct evidence for charge stripes in a layered cobalt oxide

Recent experiments indicate that static stripe-like charge order is generic to the hole-doped copper oxide superconductors and competes with superconductivity. Here we show that a similar type of charge order is present in La5/3Sr1/3CoO4, an insulating analogue of the copper oxide superconductors containing cobalt in place of copper. The stripe phase we have detected is accompanied by short-ran...

Preparation of Cobalt Oxide/Zinc Oxide Nanocomposite

Cobalt Oxide/ Zinc Oxide nanocomposite was synthesized by dropwise addition ofCo(NO)3.6H2O and Zn(NO3)2.4H2O solutions to KOH solution at different temperatures followed bycalcination at 300ºC for 4 h. The morphology and structure of nanoparticles and the influence oftemperature on particle size were studied using scanning electron microscopy (SEM) and X-RayDiffraction (XRD). Minimum particle s...

Broadband Photodetectors Based on c-Axis Tilted Layered Cobalt Oxide Thin Films

Inter­calated brucite-type layered cobalt(II) hydroxy­sulfate

In an attempt to synthesize new cobalt(II) sulfate framework structures using 1,4-diaza-bicyclo-[2.2.2]octane as a template, crystals of poly[0.35-[hexa-aqua-cobalt(II)] [tri-μ-hydroxido-μ-sulfato-dicobalt(II)]], {[Co(H(2)O)(6)](0.35)[Co(2)(OH)(3)(SO(4))]}(n), were obtained as a mixture with [Co(H(2)O)(6)]SO(4) crystals. The crystal structure can be described as being constructed from discrete ...