The Effects of Asymmetry in Combination with Reduced Graphene Oxide Nanosheets on Hydrazine Electrocatalytic Detection on Cobalt Phthalocyanines

Mpeta Lekhetho S.; Sen Pinar; Nyokong Tebello

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The Effects of Asymmetry in Combination with Reduced Graphene Oxide Nanosheets on Hydrazine Electrocatalytic Detection on Cobalt Phthalocyanines

机译：The Effects of Asymmetry in Combination with Reduced Graphene Oxide Nanosheets on Hydrazine Electrocatalytic Detection on Cobalt Phthalocyanines

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摘要

New symmetric {tetrakis 4-(4-(5-chloro-1H-benzodimidazol-2-yl) phenoxy phthalocyaninato Co (II) (CoTPc)} and low symmetry {tristertbutyl phenoxy mono 4-(4-(5-chloro-1H-benzodimidazol-2-yl) phenoxy phthalocyaninato} Co (II) (CoMPc) were successfully synthesised and combined with reduced graphene oxide nanosheets (rGONS) for electrocatalytic detection of hydrazine. Prior to electrocatalysis, the probes were characterised using cyclic voltammetry and electrochemical impedance spectroscopy. Chronoamperometry was used to determine catalytic rate constant and the limit of detection (LOD).CoMPc-rGONSgave catalytic rate constant and LOD of 1.37x10(6) M-1 s(-1)and 0.82 mu M respectively, rendering it a more suitable probe for hydrazine, due to low symmetry.

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来源
《Electroanalysis》 |2020年第12期|2723-2732|共10页
作者
Mpeta Lekhetho S.; Sen Pinar; Nyokong Tebello;
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作者单位

Rhodes Univ, Inst Nanotechnol Innovat, Dept Chem, PO 94, Grahamstown, South Africa;

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正文语种英语
中图分类电化学、电解、磁化学;
关键词
Low symmetry; Cobalt Phthalocyanines; reduced graphene oxide nanosheets; hydrazine and electrocatalysis;

The Effects of Asymmetry in Combination with Reduced Graphene Oxide Nanosheets on Hydrazine Electrocatalytic Detection on Cobalt Phthalocyanines

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