5-aminosalicylic acid (5-asa) is currently prepared by electrochemical reduction of 5-nitrosalicylic acid (5-nsa) in acidic media. in this work, electrolytic reduction of 5-nsa in alkaline media is presented. reactionconditions and parameters such as anode and cathode electrodes, electrolyte type, reaction time, temperature,current, and the ph for isolation of product are investigated. the yiel...

Pd-based catalysts are considered to be among the most promising electrocatalysts for both hydrogen oxidation reaction (HOR) and oxygen reduction (ORR) in alkaline media. Although major progress finding effective has been made, reasons activity enhancement conditions remain elucidated. Herein, we report fabrication of alloyed PdNi thin films as a tool study HOR ORR reactions. Annealing physical...

Large overpotential is one of the critical issues bifunctional air electrodes for metal–air secondary batteries and alkaline regenerative fuel cells. To overcome this problem, construction gas diffusion providing plenty amount reaction fields oxygen reduction evolution are necessary. In work, we investigate in by comparing resistances with different electrolyte solutions catalyst layer thicknes...

gas diffusion electrode was used for providing better conditions in fuel cell systems for oxygen reduction reaction (orr). because the slow kinetics of the oxygen reduction reaction at the proton exchange membrane fuel cell cathode restricts fuel cell efficiency. to this end, researchers have used platinum-coated carbon. in the present study, due to the reduction of carbon corrosion, zinc oxide...

Reduced graphene oxide film was synthesized on a glassy carbon electrode by electro reduction of graphene oxide powders in aqueous solution. Then platinum nano particles were deposited on reduced graphene oxide film that was deposited on the glassy carbon electrode via electro reduction of platinum salt. The Physical morphology of the platinum on reduced graphene oxide film was evaluated by sca...

Abstract: In this paper solid state reduction of high carbon ferrochromium-chromite composite pellets in the temperature range of 900-1350°C was investigated. A two stage reduction mechanism is proposed. The first stage is likely to be controlled by the chemical reaction with activation energy of 127.2kJ/mol. In the second stage, solid state diffusion of carbon through the reaction product ...