Creating the Ideal Push-Pull System for Electrocatalysis: A Comparative Study on Symmetrical and Asymmetrical Cardanol-based Cobalt Phthalocyanines |
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Authors: | Reitumetse Nkhahle Tebello Nyokong |
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Institution: | Institute of Nanotechnology Innovation, Department of Chemistry, Rhodes University, Grahamstown, 6140 South Africa |
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Abstract: | A symmetrical cardanol-based cobalt phthalocyanine (Pc) along with its asymmetrical acid-based derivatives were synthesized and applied in the electrocatalysis of hydrazine. Despite the inhibition of electron movement by the bulky cardanol-based substituent throughout the series of molecules, an ideal combination of substituents was established in GCE- 3 (2,9,16-tris(3-pentadecylphenoxy)-23-mono propionic acid phthalocyanato cobalt (II)) where a limit of detection (LoD) value of 5.10 μM (signal to noise ratio=5) was recorded for the detection of hydrazine. The results obtained serve as an illustration that the combination of electron-donating and electron-withdrawing substituents has a significant influence on the complete functioning of the phthalocyanine molecule(s) being investigated. |
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Keywords: | Hydrazine electrocatalysis cobalt phthalocyanine push-pull systems cardanol |
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