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Fluidized bed chemical vapor deposition on hard carbon powders to produce composite energy materials

Fluidized bed chemical vapor deposition on hard carbon powders to produce composite energy materials
Fluidized bed chemical vapor deposition on hard carbon powders to produce composite energy materials
Herein, we report a general route for the uniform coating of hard carbon (HC) powders via fluidized bed chemical vapor deposition. Carbon-based fine powders are excellent substrate materials for many catalytic and electrochemical applications but intrinsically difficult to fluidize and prone to elutriation. The reactor was designed to achieve as much retention of powders as possible, supported by a computational fluid dynamics study to assess the hydrodynamic behavior for varying gaseous flow rates. Solutions of the tin seleno- and thio-ether complexes [SnCl4{nBuSe(CH2)3SenBu}] and [SnCl4{nBuS(CH2)3SnBu}] were used as single source precursors and injected at high temperature into a fluidized bed of HC powders under nitrogen flow. The method allowed for the synthesis of HC-SnSx–SnSe2 composites at the gram scale with potential applications in electrocatalysis and sodium-ion battery anodes.
Fluidised bed chemical vapour deposition, tin dichalcogenides, single source precursor, carbon composites, energy materials, computational fluid dynamics.
2470-1343
13447−13457
Casavola, Marianna
a5a1b50c-6fa4-40e8-a155-9df4426f60cd
Armstrong, Lindsay-Marie
97effe7b-3d9f-42ab-bbcc-878a4d027ca7
Zhu, Zening
2ecfee70-8408-4858-bb8c-c67aa8381c3e
Ledwoch, Daniela
cf95648f-5d29-446e-b5dc-bf4bf15331f8
McConnell, Matthew
24278f7a-e55b-4397-aa5e-56bd5a9aad6e
Frampton, Paul
9426f4ab-d05d-40b3-812a-7018fed915b4
Curran, Peter
90dcaf4b-b881-4c28-bdac-cb692dd88879
Reid, Gillian
37d35b11-40ce-48c5-a68e-f6ce04cd4037
Hector, Andrew L.
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
et al.
Casavola, Marianna
a5a1b50c-6fa4-40e8-a155-9df4426f60cd
Armstrong, Lindsay-Marie
97effe7b-3d9f-42ab-bbcc-878a4d027ca7
Zhu, Zening
2ecfee70-8408-4858-bb8c-c67aa8381c3e
Ledwoch, Daniela
cf95648f-5d29-446e-b5dc-bf4bf15331f8
McConnell, Matthew
24278f7a-e55b-4397-aa5e-56bd5a9aad6e
Frampton, Paul
9426f4ab-d05d-40b3-812a-7018fed915b4
Curran, Peter
90dcaf4b-b881-4c28-bdac-cb692dd88879
Reid, Gillian
37d35b11-40ce-48c5-a68e-f6ce04cd4037
Hector, Andrew L.
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5

Casavola, Marianna, Armstrong, Lindsay-Marie and Zhu, Zening , et al. (2024) Fluidized bed chemical vapor deposition on hard carbon powders to produce composite energy materials. ACS Omega, 9 (11), 13447−13457, [ao4c00297]. (doi:10.1021/acsomega.4c00297).

Record type: Article

Abstract

Herein, we report a general route for the uniform coating of hard carbon (HC) powders via fluidized bed chemical vapor deposition. Carbon-based fine powders are excellent substrate materials for many catalytic and electrochemical applications but intrinsically difficult to fluidize and prone to elutriation. The reactor was designed to achieve as much retention of powders as possible, supported by a computational fluid dynamics study to assess the hydrodynamic behavior for varying gaseous flow rates. Solutions of the tin seleno- and thio-ether complexes [SnCl4{nBuSe(CH2)3SenBu}] and [SnCl4{nBuS(CH2)3SnBu}] were used as single source precursors and injected at high temperature into a fluidized bed of HC powders under nitrogen flow. The method allowed for the synthesis of HC-SnSx–SnSe2 composites at the gram scale with potential applications in electrocatalysis and sodium-ion battery anodes.

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Accepted/In Press date: 21 February 2024
e-pub ahead of print date: 7 March 2024
Published date: 19 March 2024
Additional Information: Publisher Copyright: © 2024 The Authors. Published by American Chemical Society.
Keywords: Fluidised bed chemical vapour deposition, tin dichalcogenides, single source precursor, carbon composites, energy materials, computational fluid dynamics.

Identifiers

Local EPrints ID: 488722
URI: http://eprints.soton.ac.uk/id/eprint/488722
ISSN: 2470-1343
PURE UUID: 9060c460-e9e0-4182-92d9-b5735912680c
ORCID for Marianna Casavola: ORCID iD orcid.org/0000-0002-8902-7431
ORCID for Gillian Reid: ORCID iD orcid.org/0000-0001-5349-3468
ORCID for Andrew L. Hector: ORCID iD orcid.org/0000-0002-9964-2163

Catalogue record

Date deposited: 04 Apr 2024 16:57
Last modified: 08 May 2024 01:55

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Contributors

Author: Marianna Casavola ORCID iD
Author: Lindsay-Marie Armstrong
Author: Zening Zhu
Author: Daniela Ledwoch
Author: Matthew McConnell
Author: Paul Frampton
Author: Peter Curran
Author: Gillian Reid ORCID iD
Corporate Author: et al.

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