Vacuum evaporated thin films of mixed cobalt and nickel oxides as electrocatalyst for oxygen evolution and reduction

Rashkova, V.; Kitova, S.; Konstantinov, Ivan A.; Vitanov, T.

doi:10.1016/s0013-4686(01)00897-0

Cited by 94 publications

(45 citation statements)

References 19 publications

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“…During the last three decades, considerable effort has been made to enhance the performance of spinel-type oxides for oxygen evolution by (i) the development of new preparative methods to achieve high active area and (ii) partial substitution of constituent metal ions of the oxide by other similar metal ions. The developed preparation methods include thermal decomposition [94,98e100], freeze drying method [97], solegel method [101,102], vacuum evaporation [103], chemical spray pyrolysis [104], electrophoretic deposition [105], and hydroxide co-precipitation method [106] etc. Various ternary spinel oxides have been studied and shown promising activity towards oxygen evolution [107e110].…”

Section: à2mentioning

confidence: 99%

Prospects for alkaline zero gap water electrolysers for hydrogen production

Pletcher

2011

International Journal of Hydrogen Energy

297

193

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Section: à2mentioning

confidence: 99%

Prospects for alkaline zero gap water electrolysers for hydrogen production

Pletcher

2011

International Journal of Hydrogen Energy

297

193

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“…Cobalt oxide-based materials have been widely used in energy storage systems [25], electrochromic thin films [26], magnetoresistive devices [27] and heterogeneous catalysis [28]. The electrocatalytic property of cobalt oxide film is very much dependent on the deposition method.…”

Section: Introductionmentioning

confidence: 99%

A non-enzymatic amperometric sensor for glucose based on cobalt oxide nanoparticles

Sattarahmady

Heli

2012

Journal of Experimental Nanoscience

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A cobalt oxide nanoparticle-modified glassy carbon (CONM/GC) electrode was prepared by potential cycling in a pH-controlled solution containing tartrate. The electrocatalytic oxidation of glucose on CONM/GC electrode in alkaline solution was investigated and the kinetics was developed. In cyclic voltammograms, the peak current of the oxidation of low valence cobalt oxide in the presence of glucose is increased and it was followed by a decrease in the corresponding cathodic current. This suggested that glucose oxidation was being catalysed on the redox mediator with an electrocatalytic mechanism. Using cyclic voltammetry, chronoamperometry, steady-state polarisation measurements and impedance spectroscopy, the kinetic parameters of the glucose electrooxidation such as charge-transfer coefficient, the catalytic reaction rate constant and the diffusion coefficient were determined. Based on the results, an efficient enzymeless sensing procedure for determination of glucose was developed. The resulting sensor exhibited excellent performance for the glucose determination and a sensitive and time-saving amperometric procedure was successfully applied for the quantification of glucose in both batch and flow systems. Glucose was determined with a linear range of 0.7-60 mM, a limit of detection of 0.15 mM and a sensitivity of 2515.35 mA mM À1 cm À2 in batch system and with a linear range of 1.3-50 mM, a limit of detection of 0.14 mM and a sensitivity of 3240.25 mA mM À1 cm À2 in the flow system.

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“…Ponce et al (2001) studied the oxygen reduction reaction and the oxygen evolution reaction on mixed oxide NixAlxMnO 2 . The substitution of Al by Ni increases the catalyst activity the maximum being exhibited by Ni oxide as electrocatalysis were found active toward oxygen reduction and evolution reaction (Rashkova et al, 2002). Wu et al (2006) synthesized non-porous amorphous manganese dioxide by the mean of aqueous redoxsol-gelroute.…”

Section: Cathode Electrodementioning

confidence: 99%

A Vital Source of Energy for 21st Century: Review On Alkaline Fuel Cell

Sahu¹,

Basu²

2014

Energy Research Journal

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A cell which converts the chemical energy into electric energy as eco-friendly way on the principle of electrochemical and Inverted by Sir William Grove in 1839 is known to be "fuel cell". It became a vital source of energy for the 21st Century. Different types of fuel cell are invented based on their working temperature and a type of material has been used in which alkaline fuel cell is one of the best. Fuel cell is an electro-chemical energy converter at the simplest conceptual level it's combined hydrogen with oxygen to produced water and electricity. It does not store the energy itself. It is flow process which draws liquid or gaseous fuel from separated tank and if necessary converse it to hydrogen in reformer. The hydrogen is taken combined with oxygen air in the fuel cell to produced water and electricity. The energy conversion process in the fuel cell is therefore intrinsically clean and silent. Generally other fuel such as natural gas, methanol, ethanol and even coal can also be used. The object of this study is to summarize the characteristic of the alkaline fuel cell.

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Vacuum evaporated thin films of mixed cobalt and nickel oxides as electrocatalyst for oxygen evolution and reduction

Cited by 94 publications

References 19 publications

Prospects for alkaline zero gap water electrolysers for hydrogen production

Prospects for alkaline zero gap water electrolysers for hydrogen production

A non-enzymatic amperometric sensor for glucose based on cobalt oxide nanoparticles

A Vital Source of Energy for 21st Century: Review On Alkaline Fuel Cell

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