NDLI: Electrocatalytic oxidation of formaldehyde and formic acid at Pd nanoparticles modified glassy carbon electrode

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Electrocatalytic oxidation of formaldehyde and formic acid at Pd nanoparticles modified glassy carbon electrode

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The Journal of Engineering

Electrocatalytic oxidation of formaldehyde and formic acid at Pd nanoparticles modified glassy carbon electrode

Content Provider	IET Digital Library
Author	Zhang, Jun Shangguan, Lingzhi Dong, Chuan
Abstract	Pd nanoparticle (NP) modified glassy carbon electrodes were prepared by the electrochemical deposition method of cyclic voltammetry (CV) and the potentiostatic technique, respectively. Scanning electron microscopy was used to characterise the morphology of the NP-modified electrode's surface. The electrocatalytic oxidation of formaldehyde and formic acid were investigated at the modified electrodes by CV and linear sweep voltammetry. The experimental results show that the electrodes display remarkable electrocatalytic activity and long-term stability for the oxidation of formaldehyde and formic acid. The oxidation mechanism of formaldehyde and formic acid on the modified electrodes is discussed primarily. The experimental parameters were optimised for establishing the methods of formaldehyde and formic acid determination. The oxidation peak current is linearly proportional to the concentration of formaldehyde in the range of 1.0 × 10−4 –1.4 × 10−2M with the detection limit being 3.0 × 10−5M and relative standard deviation (RSD) being 3.9%. The linear dynamic range of formic acid is in the range of 1.0 × 10−5–1.0 × 10−2 M, the detection limit is 4.0 × 10−6 M and the RSD is 2.8%. The low detection limit, wide linear range and high sensitivity of the sensors make them valuable for further application.
Starting Page	704
Ending Page	708
Page Count	5
Volume Number	8
e-ISSN	17500443
Issue Number	Issue 10, Oct (2013)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/mnl/8/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/mnl.2013.0186
Journal	Micro & Nano Letters
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Carbon Catalysis Chemical Analysis Corrosion Cyclic Voltammetry Detection Limit Electrocatalytic Activity Electrocatalytic Oxidation Electrochemical Analytical Method Electrochemical Deposition Method Electrochemical Electrodes Electrochemistry Electrochemistry And Electrophoresis Etching Formaldehyde Concentration Formic Acid Heterogeneous Catalysis at SurFace And Other Surface Reactions Linear Dynamic Range Linear Sweep Voltammetry Low Detection Limit Method of Nanofabrication And Processing Morphology Nanofabrication Nanoparticle Nanoparticle Modified Glassy Carbon Electrodes Nanotube And Nanostructured Material NP-modified Electrode Surface Organic Compound Other Surface Treatments Oxidation Oxidation Peak Current Palladium Pd-C Potentiostatic Technique Scanning Electron Microscopy Structure of Solid Clusters Voltammetry
Content Type	Text
Resource Type	Article

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