TY - JOUR
T1 - Electrocatalytic Oxidation of Hydrazine Using a Cobalt Bis(thiosemicarbazone) Complex
AU - Marichelvam, Thamaraichelvan
AU - Murugan, Ganapathi
AU - Holla, Harish
AU - Naranammalpuram Sundaram, Venkata Narayanan
AU - Palanimuthu, Duraippandi
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022.
PY - 2025/7/1
Y1 - 2025/7/1
N2 - In this article we report the synthesis and characterisation of novel cobalt bis(thiosemicarbazone) complex [Co(NH3)2L]NO3 that is utilised as electrocatalyst for the oxidation of hydrazine using modified electrode approach. Electrochemical studies such as cyclic voltammetry, linear sweep voltammetry and chronoamperometry demonstrate superior electrocatalytic behaviour of the prepared complex as compared to bare electrodes. Based on Tafel plot analysis, for electrooxidation of hydrazine, initial one electron transfer is found to be the rate limiting step which is followed by fast three electron transfer for complete oxidation to nitrogen. Chronoamperometry technique show selective response towards hydrazine electrooxidation in the presence of interfering agents and sensitive with the detection limit of 1.7 µM. Based on our studies, cobalt complex modified electrode could be used as an alternative electrocatalyst compared to that of precious metal based electrocatalyst for hydrazine oxidation.
AB - In this article we report the synthesis and characterisation of novel cobalt bis(thiosemicarbazone) complex [Co(NH3)2L]NO3 that is utilised as electrocatalyst for the oxidation of hydrazine using modified electrode approach. Electrochemical studies such as cyclic voltammetry, linear sweep voltammetry and chronoamperometry demonstrate superior electrocatalytic behaviour of the prepared complex as compared to bare electrodes. Based on Tafel plot analysis, for electrooxidation of hydrazine, initial one electron transfer is found to be the rate limiting step which is followed by fast three electron transfer for complete oxidation to nitrogen. Chronoamperometry technique show selective response towards hydrazine electrooxidation in the presence of interfering agents and sensitive with the detection limit of 1.7 µM. Based on our studies, cobalt complex modified electrode could be used as an alternative electrocatalyst compared to that of precious metal based electrocatalyst for hydrazine oxidation.
KW - Bis(thiosemicarbazone)
KW - Cobalt
KW - Electrocatalyst
KW - Hydrazine oxidation
KW - Modified electrodes
UR - https://www.scopus.com/pages/publications/85124146448
U2 - 10.1007/s11244-022-01584-8
DO - 10.1007/s11244-022-01584-8
M3 - Article
AN - SCOPUS:85124146448
SN - 1022-5528
VL - 68
SP - 1257
EP - 1267
JO - Topics in Catalysis
JF - Topics in Catalysis
IS - 13
ER -