Porous cobalt oxide thin films from low temperature solution phase synthesis for electrochromic electrode

Shim, Hee-Sang; Shinde, V.R.; Kim, Hae Jin; Sung, Yung‐Eun; Kim, Won

doi:10.1016/j.tsf.2008.05.055

Cited by 64 publications

(33 citation statements)

References 16 publications

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“…1 of "Electronic supplementary material"). The observed cyclic voltammogram of the proposed modified electrode is similar to the cyclic voltammograms of cobalt oxide-based modified electrodes which have been reported in literature [58][59][60][61]. The electrochemical properties, pH dependence, and stability of the modified electrode were reported in our previous study [23].…”

Section: Resultssupporting

confidence: 86%

Cobalt oxide nanostructure-modified glassy carbon electrode as a highly sensitive flow injection amperometric sensor for the picomolar detection of insulin

Salimi

Hallaj

2011

J Solid State Electrochem

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Glassy carbon electrode modified with electrodeposited cobalt oxide nanostructure shows an excellent electrocatalytic activity toward insulin oxidation at a wide pH range. Cyclic voltammetry, hydrodynamic amperometry, and flow injection analysis (FIA) were used for insulin determination at a picomolar and higher-concentration range. Amperometric determination of insulin at this modified electrode yielded a calibration curve with the following characteristics; linear range, 100 pM-15 nM; sensitivity of 83.9 nA nM −1 and detection limit 10 pM. FIA yielded the calibration curve with sensitivity and detection limit of 2.0 nA nM −1 and 25 pM, respectively. Furthermore, the RSD of repetitive FIA for 200 pM insulin (n=13) is 2%. In addition, the interference effect of electroactive existing species (lactic acid, cholesterol, ascorbic acid, uric acid, and glucose) was eliminated by covering the surface of the modified electrode with nafion film. Fast response time, signal stability, high sensitivity, low cost, and ease of preparation are the advantages of the proposed insulin sensor.

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Section: Resultssupporting

confidence: 86%

Cobalt oxide nanostructure-modified glassy carbon electrode as a highly sensitive flow injection amperometric sensor for the picomolar detection of insulin

Salimi

Hallaj

2011

J Solid State Electrochem

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“…A low deposition temperature of Co 3 O 4 can be beneficial for several applications; e.g., as anodic coloration materials for electrochromic devices on flexible polymers. 28 A (100) preferential direction was found in previous work on Co 3 O 4 by Klepper et al for low substrate temperatures (114 C) and a (111) preferential direction for high temperatures (307 C) (17). The difference with our results, where a strong preferential (111) direction was found for all deposition temperatures, could be related to either the use of a different precursor or to the use of a remote O 2 plasma process instead of thermal ALD with O 3 .…”

Section: Resultsmentioning

confidence: 99%

Remote Plasma Atomic Layer Deposition of Co3O4 Thin Films

Donders

Knoops

Sanden

et al. 2011

J. Electrochem. Soc.

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“…These characteristics make them good candidate materials for high surface area devices such as lithium-ion batteries and gas sensors45678. Nanorings are one of the hollow structures which have been successfully fabricated and exhibit extraordinary properties due to their ring-like morphology910.…”

mentioning

confidence: 99%

Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation

Chen

Zhou

Maguire

et al. 2016

Sci Rep

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Cobalt hydrate and doped binary Co0.9M0.1OOH (M = Ni, Mn, Fe) nanorings of 100–300 nm were fabricated in solution through a facile ambient oxidation method. A transformation from Co0.9Ni0.1(OH)2 nanodiscs to hollow Co0.9Ni0.1OOH nanorings was observed with prolonged reaction time. Core-shell nanodiscs have elemental segregation with a Co(OH)2 core and Ni(OH)2 shell. Co0.9Ni0.1OOH nanorings displayed a higher electrochemical capacitance than Mn and Fe doped nanorings materials or materials with disc-like geometries.

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Porous cobalt oxide thin films from low temperature solution phase synthesis for electrochromic electrode

Cited by 64 publications

References 16 publications

Cobalt oxide nanostructure-modified glassy carbon electrode as a highly sensitive flow injection amperometric sensor for the picomolar detection of insulin

Cobalt oxide nanostructure-modified glassy carbon electrode as a highly sensitive flow injection amperometric sensor for the picomolar detection of insulin

Remote Plasma Atomic Layer Deposition of Co3O4 Thin Films

Enhancing capacitance behaviour of CoOOH nanostructures using transition metal dopants by ambient oxidation

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