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6CCVD Research

Electrochemical Oxidation Behavior of Nitrogen Dioxide for Gas Detection Using Boron Doped Diamond Electrodes

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2021-04-19
JournalElectroanalysis
AuthorsYunita Triana, Irkham Irkham, Yasuaki Einaga
InstitutionsKeio University, Institut Teknologi Kalimantan
Citations16

Abstract

Section titled ā€œAbstractā€

Abstract The electrochemical oxidation reaction of nitrogen dioxide (NO 2 ) using boron doped diamond (BDD) electrodes is presented. Cyclic voltammetry of NO 2 in a 0.1 M KClO 4 solution exhibits oxidation peaks at +1.1 V and +1.5 V ( vs . Ag/AgCl) which are attributable to oxidation of HONO and NO 2 āˆ’ , respectively. Moreover, the pH and scan rate dependences were investigated to study the oxidation mechanism. A linear calibration curve was observed in the concentration range of āˆ¼1 to 5 mM (R 2 =0.99) with a detection limit of 11.1 ppb (S/B=3) for HONO and 58.6 ppb (S/B=3) for NO 2 āˆ’ . In addition, the analytical performance was compared with those using glassy carbon, platinum and stainless steel as the working electrode.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

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