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Electrochemical performance of thin free-standing boron-doped diamond nanosheet electrodes

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2020-02-27
JournalJournal of Electroanalytical Chemistry
AuthorsRobert Bogdanowicz, Mateusz Ficek, Natalia Malinowska, Sanju Gupta, Romney Meek
InstitutionsUniversity of Gdańsk, Western Kentucky University
Citations34

Abstract

Section titled ā€œAbstractā€

In the following work we describe preparation and the electrochemical performance of thin and free-standing heavy boron-doped diamond (BDD) nanosheets. The investigated foils were deposited on Ta substrate using microwave plasma-enhanced chemical vapor deposition technique (MPECVD). Foils of two B-dopant densities were investigated, obtained on the base of 10 k and 20 k ppm [B]/[C] ratio in the gas admixture. The obtained foils can be easily peeled from substrate in deionized water to be then attached to other material, in this case polydimethylsiloxane (PDMS). We have shown that the top surface and the bottom side of investigated boron-doped diamond nanosheet possess significantly altered morphology and physico-chemical properties, revealed by electron microscopy, Raman spectroscopy and electrochemistry. The voltammetric response of investigated BDD foils as working electrodes indicates the highest activity for the nanosheet with higher dopant concentration, in particular on its top surface. Furthermore, electrodes are characterized with altered kinetics, characteristic for partially blocked electrodes with quasi-reversible charge transfer.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
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  4. 2017 - A rapid-response ultrasensitive biosensor for influenza virus detection using antibody modified boron-doped diamond [Crossref]
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  6. 2017 - Battery-like supercapacitors from diamond networks and water-soluble redox electrolytes [Crossref]
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  8. 2011 - Boron doped diamond and glassy carbon electrodes comparative study of the oxidation behaviour of cysteine and methionine [Crossref]
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  10. 2002 - Electrochemical detection of tricyclic antidepressant drugs by HPLC using highly boron-doped diamond electrodes [Crossref]

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