2D-hexagonal boron nitride screen-printed bulk-modified electrochemical platforms explored towards oxygen reduction reactions

Khan, AF, Ferrari, AGM, Hughes, JP, Smith, GC, Banks, CE and Rowley-Neale, SJ (2022) 2D-hexagonal boron nitride screen-printed bulk-modified electrochemical platforms explored towards oxygen reduction reactions. Sensors, 22 (9). p. 3330. ISSN 1424-8220

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Official URL: https://www.mdpi.com/1424-8220/22/9/3330

Abstract

A low-cost, scalable and reproducible approach for the mass production of screen-printed electrode (SPE) platforms that have varying percentage mass incorporations of 2D hexagonal boron nitride (2D-hBN) (2D-hBN/SPEs) is demonstrated herein. These novel 2D-hBN/SPEs are explored as a potential metal-free electrocatalysts towards oxygen reduction reactions (ORRs) within acidic media where their performance is evaluated. A 5% mass incorporation of 2D-hBN into the SPEs resulted in the most beneficial ORR catalysis, reducing the ORR onset potential by ca. 200 mV in comparison to bare/unmodified SPEs. Furthermore, an increase in the achievable current of 83% is also exhibited upon the utilisation of a 2D-hBN/SPE in comparison to its unmodified equivalent. The screen-printed fabrication approach replaces the less-reproducible and time-consuming drop-casting technique of 2D-hBN and provides an alternative approach for the large-scale manufacture of novel electrode platforms that can be utilised in a variety of applications.

Item Type:	Article
Peer-reviewed:	Yes
Date Deposited:	26 Jul 2022 13:23
Publisher:	MDPI
Additional Information:	This is an Open Access article which appeared in Sensors, published by MDPI. This article belongs to the Special Issue Screen-Printed Sensors
Divisions:	Faculties > Science and Engineering Research Centres > Advanced Materials and Surface Engineering
Subject terms:	Science & Technology, Physical Sciences, Technology, Chemistry, Analytical, Engineering, Electrical & Electronic, Instruments & Instrumentation, Chemistry, Engineering, boron nitride, screen-printed electrodes (SPEs), electrochemistry, oxygen reduction reaction (ORR), EFFICIENT ELECTROCATALYST, GRAPHENE, ELECTRODES, GOLD, NANOSHEETS, CARBON, WATER, DEPENDENCE, CATALYST, Boron Compounds, Oxygen, Electrodes, Electrochemical Techniques, boron nitride, electrochemistry, oxygen reduction reaction (ORR), screen-printed electrodes (SPEs), Boron Compounds, Electrochemical Techniques, Electrodes, Oxygen, 0301 Analytical Chemistry, 0502 Environmental Science and Management, 0602 Ecology, 0805 Distributed Computing, 0906 Electrical and Electronic Engineering, Analytical Chemistry
URI:	https://e-space.mmu.ac.uk/id/eprint/630146
DOI:	https://doi.org/10.3390/s22093330
ISSN	1424-8220
e-ISSN	1424-8220

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