Nickel-coated 3D-printed titanium electrodes for electrochemical flow reactors
Nickel-coated 3D-printed titanium electrodes for electrochemical flow reactors
Electrocatalyst-coated metallic electrodes for electrochemical flow reactors have many applications in electrosynthesis, environmental remediation and energy conversion. This work presents novel nickel-coated titanium-alloy electrodes produced by means of direct metal laser sintering and constant current electrodeposition in an additive-free Wood’s nickel strike then a Watts nickel bath. Several 3D porous architectures were created in Ti-6Al-4 V alloy and coated, their digital design being the subject of previous work. Nickel coatings were macroscopically uniform and adherent with a thickness up to 5.8 µm, depending on the surface area of the electrodes. The morphology of nickel was cauliflower-like, with crystallisation growth occurring as spherical grains, as typically found for deposits from pH buffered Watts baths. Some degree of coating porosity was observed at electrodes of large surface area, indicating the need for longer deposition times. The results open the path for further optimisation of electrodeposition parameters and the development of bath additives to tailor deposit properties.
Additive manufacturing, designed structure electrode, electrocatalytic coating, electrosynthesis, flow cell, periodic cellular material, porous electrode, three-dimensional electrode
119-125
Arenas, Luis F.
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Miranda-Alcántara, Berenice
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Kaishubayeva, Nazira
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Abahussain, Abdulaziz A.M.
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Rivera, Fernando
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Ponce De Leon Albarran, Carlos
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Walsh, Frank
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30 March 2023
Arenas, Luis F.
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Miranda-Alcántara, Berenice
503a53a5-cab6-4bd4-9c64-9732a6b0044b
Kaishubayeva, Nazira
c740ff08-61aa-4519-8586-5ce97a975cac
Abahussain, Abdulaziz A.M.
e15b41d1-4018-43d2-816b-22ed8b01e0ad
Rivera, Fernando
d5249472-39d7-4a21-98b2-edef98d00e03
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Arenas, Luis F., Miranda-Alcántara, Berenice, Kaishubayeva, Nazira, Abahussain, Abdulaziz A.M., Rivera, Fernando, Ponce De Leon Albarran, Carlos and Walsh, Frank
(2023)
Nickel-coated 3D-printed titanium electrodes for electrochemical flow reactors.
Transactions of the Institute of Metal Finishing, 101 (3), .
(doi:10.1080/00202967.2023.2185977).
Abstract
Electrocatalyst-coated metallic electrodes for electrochemical flow reactors have many applications in electrosynthesis, environmental remediation and energy conversion. This work presents novel nickel-coated titanium-alloy electrodes produced by means of direct metal laser sintering and constant current electrodeposition in an additive-free Wood’s nickel strike then a Watts nickel bath. Several 3D porous architectures were created in Ti-6Al-4 V alloy and coated, their digital design being the subject of previous work. Nickel coatings were macroscopically uniform and adherent with a thickness up to 5.8 µm, depending on the surface area of the electrodes. The morphology of nickel was cauliflower-like, with crystallisation growth occurring as spherical grains, as typically found for deposits from pH buffered Watts baths. Some degree of coating porosity was observed at electrodes of large surface area, indicating the need for longer deposition times. The results open the path for further optimisation of electrodeposition parameters and the development of bath additives to tailor deposit properties.
Text
Ni coated 3D printed Ti electrodes for electrochemical flow reactors, Accepted version
- Accepted Manuscript
Text
Nickel coated 3D printed titanium electrodes for electrochemical flow reactors
- Version of Record
More information
Accepted/In Press date: 24 January 2023
e-pub ahead of print date: 30 March 2023
Published date: 30 March 2023
Additional Information:
Funding Information:
This work was supported by King Saud University, Riyadh (Saudi Arabia) under Researchers Supporting Project number RSPD2023R612. BMA thanks CONACYT (Mexico) for scholarship number 468574 and for sponsoring a visit to the University of Southampton (UK). LFA thanks Prof. Thomas Turek and Mr. Sascha Genthe for providing access to the SEM facilities at Clausthal University of Technology (Germany).
Funding Information:
This work was supported by King Saud University, Riyadh (Saudi Arabia) under Researchers Supporting Project number RSPD2023R612. BMA thanks CONACYT (Mexico) for scholarship number 468574 and for sponsoring a visit to the University of Southampton (UK). LFA thanks Prof. Thomas Turek and Mr. Sascha Genthe for providing access to the SEM facilities at Clausthal University of Technology (Germany).
Publisher Copyright:
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Keywords:
Additive manufacturing, designed structure electrode, electrocatalytic coating, electrosynthesis, flow cell, periodic cellular material, porous electrode, three-dimensional electrode
Identifiers
Local EPrints ID: 477169
URI: http://eprints.soton.ac.uk/id/eprint/477169
ISSN: 0020-2967
PURE UUID: 1d1ba406-51c0-4e3e-bd3d-1fb469e5cb88
Catalogue record
Date deposited: 31 May 2023 16:36
Last modified: 17 Mar 2024 03:01
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Contributors
Author:
Luis F. Arenas
Author:
Berenice Miranda-Alcántara
Author:
Nazira Kaishubayeva
Author:
Abdulaziz A.M. Abahussain
Author:
Fernando Rivera
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