Generation of nanoporous diamond electrodes fabricated by a low-cost process at moderate temperatures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F23%3AN0000057" target="_blank" >RIV/26722445:_____/23:N0000057 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/23:00616635

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsaenm.3c00125" target="_blank" >https://pubs.acs.org/doi/10.1021/acsaenm.3c00125</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsaenm.3c00125" target="_blank" >10.1021/acsaenm.3c00125</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Generation of nanoporous diamond electrodes fabricated by a low-cost process at moderate temperatures

Popis výsledku v původním jazyce

A unique approach to fabricate nanoporous diamond morphology using molten salt thermal etching (MSTE) at a moderate temperature (450 °C) of boron-doped ultrananocrystalline diamond (B-UNCD) electrodes is presented. The developed one-step method is simple, environmentally friendly, inexpensive, and provides nanoporous diamond electrodes with nearly unlimited Z-depths. Moreover, it is also applicable to non-conductive diamond films. The appropriate etching mechanism is attributed to the preferential etching of sp2 carbon phases localized at the grain boundaries by MSTE-generated highly oxidizing species. The fabricated B-UNCD electrodes show an increase in the electrochemical active area (ECSA) of 15% after 3 h of the MSTE treatment, making them promising materials to use as sensors for electroactive species. Such nanoporous B-UNCD presents a favorable working electrode with increased sensitivity for the electrochemical detection of 4-nitrophenol. Moreover, the fabricated nanoporous B-NCD electrode showed 49 times higher capacitance (3534 μF cm−2) than thepristine (non-porous) B-UNCD material (71.50 μF cm−2).

Název v anglickém jazyce

Generation of nanoporous diamond electrodes fabricated by a low-cost process at moderate temperatures

Popis výsledku anglicky

A unique approach to fabricate nanoporous diamond morphology using molten salt thermal etching (MSTE) at a moderate temperature (450 °C) of boron-doped ultrananocrystalline diamond (B-UNCD) electrodes is presented. The developed one-step method is simple, environmentally friendly, inexpensive, and provides nanoporous diamond electrodes with nearly unlimited Z-depths. Moreover, it is also applicable to non-conductive diamond films. The appropriate etching mechanism is attributed to the preferential etching of sp2 carbon phases localized at the grain boundaries by MSTE-generated highly oxidizing species. The fabricated B-UNCD electrodes show an increase in the electrochemical active area (ECSA) of 15% after 3 h of the MSTE treatment, making them promising materials to use as sensors for electroactive species. Such nanoporous B-UNCD presents a favorable working electrode with increased sensitivity for the electrochemical detection of 4-nitrophenol. Moreover, the fabricated nanoporous B-NCD electrode showed 49 times higher capacitance (3534 μF cm−2) than thepristine (non-porous) B-UNCD material (71.50 μF cm−2).

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS Applied Engineering Materials

ISSN

2771-9545

e-ISSN

2771-9545

Svazek periodika

1

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1446–1454

Kód UT WoS článku

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EID výsledku v databázi Scopus

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