Homoepitaxial {100} single crystal boron-doped diamond: nanostructuring and its impact on electrochemical performance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00619245" target="_blank" >RIV/68378271:_____/25:00619245 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/25:10509616 RIV/26722445:_____/25:N0000055
Result on the web
<a href="https://doi.org/10.1016/j.surfin.2025.106499" target="_blank" >https://doi.org/10.1016/j.surfin.2025.106499</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfin.2025.106499" target="_blank" >10.1016/j.surfin.2025.106499</a>
Alternative languages
Result language
angličtina
Original language name
Homoepitaxial {100} single crystal boron-doped diamond: nanostructuring and its impact on electrochemical performance
Original language description
Homoepitaxially grown single crystal boron-doped diamond (BDD) electrodes with {100} surface were nanostructured using dip-coated silica nanospheres (400 nm in diameter) as a template for microwave plasma-enhanced chemical vapour deposition. Co-doping of BDD with Si atoms was confirmed as a result of SiO2 etching during the deposition process. Electrochemical properties of the nanostructured electrodes with hemispherical cavities were thoroughly investigated using cyclic voltammetry and electrochemical impedance spectroscopy, and were compared with smooth {100} BDD surfaces. Heterogeneous electron transfer kinetics rates for the [Fe(CN)6]3−/4− redox marker were notably higher than literature-reported values for {100} BDD and were further increased up to two orders of magnitude by the nanostructuring. Similar increase in the electron transfer rate was observed for dopamine. Such enhancement can be caused by exposure of more reactive surfaces with other crystallographic orientations due to nanostructuring. Further, surface area analysis revealed the electroactive surface increase factor up to 2.44 upon nanostructuring, exceeding the theoretical estimate of 1.91 derived from geometrical considerations. This discrepancy may indicate nanoscale roughness of the surface of the hemispherical cavities’ walls. Overall, the results demonstrate that the applied nanostructuring approach preserves the sp³ carbon character of the material while improving its electrochemical properties. These findings uncover the potential of nanostructured BDD surfaces for applications in electrochemical sensors, spatially distributed surface modification, and particle entrapment.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Surfaces and Interfaces
ISSN
2468-0230
e-ISSN
2468-0230
Volume of the periodical
65
Issue of the periodical within the volume
May
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
106499
UT code for WoS article
001483013500001
EID of the result in the Scopus database
2-s2.0-105003583880