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

Robert Bogdanowicz , Mateusz Ficek , Natalia Malinowska , Sanju Gupta , Romney Meek , Paweł Niedziałkowski , Michał Rycewicz , Mirosław Sawczak , Jacek Ryl , Tadeusz Ossowski

Abstract

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.
Author Robert Bogdanowicz
Robert Bogdanowicz,,
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, Mateusz Ficek
Mateusz Ficek,,
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, Natalia Malinowska (FCh / DACh / LSCh)
Natalia Malinowska,,
- Laboratory of Supramolecular Chemistry
, Sanju Gupta
Sanju Gupta,,
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, Romney Meek
Romney Meek,,
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, Paweł Niedziałkowski (FCh / DACh / LSCh)
Paweł Niedziałkowski,,
- Laboratory of Supramolecular Chemistry
, Michał Rycewicz
Michał Rycewicz,,
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, Mirosław Sawczak
Mirosław Sawczak,,
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, Jacek Ryl
Jacek Ryl,,
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, Tadeusz Ossowski (FCh / DACh / LSCh)
Tadeusz Ossowski,,
- Laboratory of Supramolecular Chemistry
Journal seriesJournal of Electroanalytical Chemistry, ISSN 1572-6657, e-ISSN 1873-2569, (N/A 70 pkt)
Issue year2020
Vol862
Pages1-7
Publication size in sheets0.5
Article number114016
Keywords in EnglishBoron-doped diamond, free-standing diamond nanosheets, cyclic voltammetry, electron transfer mechanism
ASJC Classification1500 General Chemical Engineering; 1602 Analytical Chemistry; 1603 Electrochemistry
DOIDOI:10.1016/j.jelechem.2020.114016
URL https://doi.org/10.1016/j.jelechem.2020.114016
Languageen angielski
LicenseOther; published final; Uznanie Autorstwa - Użycie Niekomercyjne - Bez utworów zależnych (CC-BY-NC-ND); with publication
Score (nominal)70
Score sourcejournalList
ScoreMinisterial score = 70.0, 29-04-2020, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.813; WoS Impact Factor: 2018 = 3.218 (2) - 2018=3.032 (5)
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