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Voltammetric Characterization of 2‐Methoxy‐4‐Nitrophenyl Derivatized Carbon Powder
Author(s) -
Pandurangappa M.,
Ramakrishnappa T.
Publication year - 2006
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200603658
Subject(s) - pyrolytic carbon , carbon fibers , derivatization , electrochemistry , graphite , particle size , salt (chemistry) , surface modification , inorganic chemistry , chemistry , materials science , electrode , nuclear chemistry , organic chemistry , pyrolysis , high performance liquid chromatography , composite number , composite material
Carbon powder has been functionalized with 2‐methoxy‐4‐nitrophenyl groups by the reduction of 2‐methoxy‐4‐nitrobenzenediazonium‐1,5‐naphthalenedisulfonate salt in presence of hypophosporous acid as a reducing agent. This provides an easy and inexpensive methodology to modify the carbon particle surface. This derivatization is carried out in the presence of 2‐methoxy‐4‐nitrobenzenediazonium 1,5‐naphthalenedisulfonate salt along with the carbon powder and hypophosporous acid. The electrochemical behavior of the resulting 2‐methoxy‐4‐nitrophenyl functionalized carbon powder was characterized by immobilizing it onto basal plane pyrolytic graphite (bppg) electrode and studying its voltammetric behavior. The surface morphology of derivatized carbon powder has been examined by SEM studies which revealed that the size of the functionalized carbon particles are larger than bare carbon particles The effect of pH on peak potentials, scan rate and stability of the functionalized carbon particles has revealed that they are surface bound species.