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Volume 22
Issue 9
10.3390/s22093330
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Article

2D-Hexagonal Boron Nitride Screen-Printed Bulk-Modified Electrochemical Platforms Explored towards Oxygen Reduction Reactions

by
Aamar F. Khan
1,2,
Alejandro Garcia-Miranda Ferrari
1,2,
Jack P. Hughes
1,2,
Graham C. Smith
3,
Craig E. Banks
1,2 and
Samuel J. Rowley-Neale
1,2,*
1
Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
2
Manchester Fuel Cell Innovation Centre, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
3
Department of Natural Sciences, Faculty of Science and Engineering, University of Chester, Thornton Science Park, Pool Lane, Ince, Chester CH2 4NU, UK
*
Author to whom correspondence should be addressed.
Sensors 2022, 22(9), 3330; https://doi.org/10.3390/s22093330
Submission received: 11 January 2022 / Revised: 13 April 2022 / Accepted: 19 April 2022 / Published: 26 April 2022
(This article belongs to the Special Issue Screen-Printed Sensors)
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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.
Keywords: boron nitride; screen-printed electrodes (SPEs); electrochemistry; oxygen reduction reaction (ORR) boron nitride; screen-printed electrodes (SPEs); electrochemistry; oxygen reduction reaction (ORR)

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MDPI and ACS Style

Khan, A.F.; Ferrari, A.G.-M.; Hughes, J.P.; Smith, G.C.; Banks, C.E.; Rowley-Neale, S.J. 2D-Hexagonal Boron Nitride Screen-Printed Bulk-Modified Electrochemical Platforms Explored towards Oxygen Reduction Reactions. Sensors 2022, 22, 3330. https://doi.org/10.3390/s22093330

AMA Style

Khan AF, Ferrari AG-M, Hughes JP, Smith GC, Banks CE, Rowley-Neale SJ. 2D-Hexagonal Boron Nitride Screen-Printed Bulk-Modified Electrochemical Platforms Explored towards Oxygen Reduction Reactions. Sensors. 2022; 22(9):3330. https://doi.org/10.3390/s22093330

Chicago/Turabian Style

Khan, Aamar F., Alejandro Garcia-Miranda Ferrari, Jack P. Hughes, Graham C. Smith, Craig E. Banks, and Samuel J. Rowley-Neale. 2022. "2D-Hexagonal Boron Nitride Screen-Printed Bulk-Modified Electrochemical Platforms Explored towards Oxygen Reduction Reactions" Sensors 22, no. 9: 3330. https://doi.org/10.3390/s22093330

APA Style

Khan, A. F., Ferrari, A. G.-M., Hughes, J. P., Smith, G. C., Banks, C. E., & Rowley-Neale, S. J. (2022). 2D-Hexagonal Boron Nitride Screen-Printed Bulk-Modified Electrochemical Platforms Explored towards Oxygen Reduction Reactions. Sensors, 22(9), 3330. https://doi.org/10.3390/s22093330

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