Results 201 to 210 of about 154,184 (251)
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Amperometric gas‐diffusion/enzyme electrode
Electroanalysis, 1995AbstractAn amperometric enzyme gas‐diffusion electrode has been developed which combines a porous, air breathing gas‐diffusion electrode with an enzyme [glucose oxidase (GOD)] immobilized with Nation into its porous catalytic layer. The catalytic layer contains pyrolyzed Co‐ tetramethoxyphenylporphyrine (CoTMPP), which is very active towards the ...
Iliev, I. +3 more
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Hydrophobicity of CO2 gas diffusion electrodes
Joule, 2021In Nature Communications, Hu, Feng, and their colleagues present a scalable, facile method to tune the hydrophobicity of CO2 reduction gas diffusion electrodes by adding polytetrafluoroethylene (PTFE) nanopowder into the catalyst ink. For a copper catalyst CO2 reduction electrode, the additive significantly enhances CO2 reduction performance and ...
Kentaro U. Hansen, Feng Jiao
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Microfabricated gas-diffusion electrodes
Journal of Electroanalytical Chemistry, 1992Abstract Gas-diffusion electrodes with uniform openings were prepared by electrodeposition of silver on microfabricated metal mesh. The porous metallic structures were non-wetting and allowed operating pressures up to 2 atm (0.2 MPa). From the polarization data for oxygen reduction on these electrodes, the decrease in contact angle with pressure ...
Ki Lai Tang, T, Chan, KY
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Partially immersed gas-diffusion electrodes
Journal of Applied Electrochemistry, 1979A new type of partially immersed carbon gas-diffusion electrode with a sandwich-like structure consisting of two active layers each side of the gas-supplying layer is described. The current collector grid is embedded into the electrically conductive gas-supplying layer.
A. Kaisheva, I. Iliev, S. Gamburzev
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Amperometric enzyme/gas-diffusion electrodes
Sensors and Actuators B: Chemical, 1995Abstract An amperometric enzyme/gas-diffusion electrode is developed which combines a porous air-breathing gas-diffusion electrode with an enzyme immobilized on its catalytic layer. The behaviour of glucose oxidase/gas-diffusion and lactate oxidase/gas-diffusion electrodes are investigated when oxygen, needed for the enzymatic reaction, is supplied ...
A. Kaisheva +3 more
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High-Performance Gas Diffusion Electrode
Russian Journal of Applied Chemistry, 2001A high-performance gas diffusion electrode is fabricated by hot pressing with an asbestos laying used to provide uniform load in the process. The electrode was studied in cathodic reduction of oxygen in acidic electrolyte at various temperatures.
A. Gawdzik +3 more
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Gas diffusion and electrolyte penetration in porous gas diffusion electrodes
Electrochimica Acta, 1977Abstract Gas diffusion and electrolyte penetration in wetproofed gas diffusion electrodes were studied using layers of PTFE-bonded carbon. Minor variations in fabrication and testing procedures resulted in very large variations in catalyst layer wetting characteristics and permeability for gases.
W.M. Vogel, K.A. Klinedinst
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Electrochemical disinfection using the gas diffusion electrode system
Journal of Environmental Sciences, 2010A study on the electrochemical disinfection with H2O2 generated at the gas diffusion electrode (GDE) from active carbon/polytetrafluoroethylene was performed in a non-membrane cell. The effects of Pt load and the pore-forming agent content in GDE, and operating conditions were investigated.
Wen-Ying, Xu, Ping, Li, Bin, Dong
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Gas diffusion electrode of high performance
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1984Summary We assumed that, at the present stage of technology of gas diffusion electrodes, diffusion of dissolved reactant gas is the slowest step which determines the current, which led us to an idea that the reduction of the diffusion distance results in the increase of the current. On the basis of this idea very fine networks of gas channels, having
Satoshi Motoo +2 more
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Enzyme/gas-diffusion electrodes for determination of phenol
Sensors and Actuators B: Chemical, 1996Abstract An enzyme/gas diffusion electrode for the determination of phenol concentration is investigated comprising a new type of porous hydrophobic carbon electrode (made from acetylene black treated with PTFE by a special technology) on which enzyme tyrosinase is immobilized. In the enzyme/gas-diffusion electrode the oxygen needed for the enzymatic
Kaisheva, A. +5 more
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