We are trying to develop a reaction methodology using photoelectrocatalysis.While, we are giving a negative potential of -1.8V, on photoexcitation rise in cathodic wave is observed. What can be the possible cause and how can we control this?
DR Kirti --- Have a look at the following germane input to your question:
https://tel.archives-ouvertes.fr/tel-01358735/document
Effluents of a large variety of industries usually contain important quantities of synthetic organic compounds. The discharge of these compounds in the environment causes considerable non-aesthetic pollution and serious health risk factors. Since conventional wastewater treatment plants cannot degrade the majority of these pollutants, powerful methods for the decontamination of dye wastewaters have received increasing attention over the past decade. For a detailed version , kindly take a look at:
https://link.springer.com/article/10.1007%2Fs10008-016-3385-2
Regards--
Ijaz Durrani thank you for answering my question. However, it does not answer my question. We are trying to do homogenous catalysis, giving useful organic product. For which we have used hplc grade solvent and commercially available substrate. If we rule out the possibility of impurity, is there an explaination for rise in cathodic wave?
DR Kirti -- Sustainable solvents are a topic of growing interest in both the research community and the chemical industry due to a growing awareness of the impact of solvents on pollution, energy usage, and contributions to air quality and climate change. Solvent losses represent a major portion of organic pollution, and solvent removal represents a large proportion of process energy consumption. To counter these issues, a range of greener or more sustainable solvents have been proposed and developed over the past three decades. Much of the focus has been on the environmental credentials of the solvent itself, although how a substance is deployed is as important to sustainability as what it is made from. Developing active and selective electrocatalysts is of prime importance in shifting society toward utilizing renewable energy sources. Such developments often require catalysts with particular morphologies because many chemical reactions are sensitive to the catalyst structure. However, it can be challenging to synthesize and stabilize shape-controlled catalysts. It would therefore be desirable to tailor the morphology of an existing electrocatalyst to exhibit favorable catalytic properties. In this work, such morphological alteration is explored using cathodic corrosion: an electrochemical etching process that can generate geometrical shapes on metallic surfaces. Specifically, cathodic corrosion is utilized to tailor a well-defined Pt(111) electrode for oxygen reduction and glycerol oxidation catalysis. Both the oxygen reduction activity and the glycerol oxidation selectivity can be tailored by controlling the cathodic corrosion conditions. These results demonstrate the specific potential of cathodic corrosion for tailoring catalyst activity and selectivity. For more elaboration takea look at the following links:
Article Tailoring the Electrocatalytic Activity and Selectivity of P...
https://pubs.acs.org/doi/full/10.1021/acs.chemrev.7b00571?src=recsys
http://lcwu.edu.pk/ocd/cfiles/Biotechnology/Maj/Biotech-202/401-BiochemistryLaboratory-ModernTheoryandTechniques2ndEdition-RodneyF.Boyer-01360430.pdf
Regards-
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