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SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells

Tin oxide nanocubes/sulfonated bentonite (SnO2/sBH) nanocomposite blended with acidified poly ether ether ketone (SPEEK) solid state electrolyte is developed for DMFCs. Morphological investigations reveal the existence of SnO2 nanocubes on sheet-like structure of sBH and the uniform dispersion of ab...

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Main Authors: Ranjani, M., Al-Sehemi, Abdullah G., Pannipara, Mehboobali, Aziz, Md. Abdul, Phang, Siew Moi, Ng, Fong Lee, kumar, G. Gnana
Format: Article
Published: Elsevier 2020
Subjects:
Q Science (General)
QD Chemistry
Online Access:http://eprints.um.edu.my/25330/
https://doi.org/10.1016/j.ssi.2020.115318
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spelling my.um.eprints.253302020-08-13T04:25:09Z http://eprints.um.edu.my/25330/ SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells Ranjani, M. Al-Sehemi, Abdullah G. Pannipara, Mehboobali Aziz, Md. Abdul Phang, Siew Moi Ng, Fong Lee kumar, G. Gnana Q Science (General) QD Chemistry Tin oxide nanocubes/sulfonated bentonite (SnO2/sBH) nanocomposite blended with acidified poly ether ether ketone (SPEEK) solid state electrolyte is developed for DMFCs. Morphological investigations reveal the existence of SnO2 nanocubes on sheet-like structure of sBH and the uniform dispersion of above composite on SPEEK matrix. The layered sheet-like structure of BH act as heat diffusion barrier and the ceramic feature of SnO2 further improves the thermal stability of a SPEEK membrane. The exposed large surface area of BH and tightly bound water molecules in SnO2 and -SO3H sites increase the water retention properties, which consequently enhance the ionic conductivity of SPEEK/sBH/SnO2 composite membrane. Furthermore, the high aspect ratio of sBH and methanol resistive characteristic of SnO2 lower the methanol diffusion channels in the sBH/SnO2 composite membrane. With the coalition of above significant electrochemical properties, SPEEK/sBH/SnO2 solid electrolyte demonstrates the high DMFC power density and excellent durability, which showers light on the viability of prepared membrane in high performance and durable DMFCs. © 2020 Elsevier B.V. Elsevier 2020 Article PeerReviewed Ranjani, M. and Al-Sehemi, Abdullah G. and Pannipara, Mehboobali and Aziz, Md. Abdul and Phang, Siew Moi and Ng, Fong Lee and kumar, G. Gnana (2020) SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells. Solid State Ionics, 353. p. 115318. ISSN 0167-2738 https://doi.org/10.1016/j.ssi.2020.115318 doi:10.1016/j.ssi.2020.115318
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Ranjani, M.
Al-Sehemi, Abdullah G.
Pannipara, Mehboobali
Aziz, Md. Abdul
Phang, Siew Moi
Ng, Fong Lee
kumar, G. Gnana
SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells
description Tin oxide nanocubes/sulfonated bentonite (SnO2/sBH) nanocomposite blended with acidified poly ether ether ketone (SPEEK) solid state electrolyte is developed for DMFCs. Morphological investigations reveal the existence of SnO2 nanocubes on sheet-like structure of sBH and the uniform dispersion of above composite on SPEEK matrix. The layered sheet-like structure of BH act as heat diffusion barrier and the ceramic feature of SnO2 further improves the thermal stability of a SPEEK membrane. The exposed large surface area of BH and tightly bound water molecules in SnO2 and -SO3H sites increase the water retention properties, which consequently enhance the ionic conductivity of SPEEK/sBH/SnO2 composite membrane. Furthermore, the high aspect ratio of sBH and methanol resistive characteristic of SnO2 lower the methanol diffusion channels in the sBH/SnO2 composite membrane. With the coalition of above significant electrochemical properties, SPEEK/sBH/SnO2 solid electrolyte demonstrates the high DMFC power density and excellent durability, which showers light on the viability of prepared membrane in high performance and durable DMFCs. © 2020 Elsevier B.V.
format Article
author Ranjani, M.
Al-Sehemi, Abdullah G.
Pannipara, Mehboobali
Aziz, Md. Abdul
Phang, Siew Moi
Ng, Fong Lee
kumar, G. Gnana
author_facet Ranjani, M.
Al-Sehemi, Abdullah G.
Pannipara, Mehboobali
Aziz, Md. Abdul
Phang, Siew Moi
Ng, Fong Lee
kumar, G. Gnana
author_sort Ranjani, M.
title SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells
title_short SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells
title_full SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells
title_fullStr SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells
title_full_unstemmed SnO2 nanocubes/bentonite modified SPEEK nanocomposite composite membrane for high performance and durable direct methanol fuel cells
title_sort sno2 nanocubes/bentonite modified speek nanocomposite composite membrane for high performance and durable direct methanol fuel cells
publisher Elsevier
publishDate 2020
url http://eprints.um.edu.my/25330/
https://doi.org/10.1016/j.ssi.2020.115318
_version_ 1680857019486044160
score 13.211869

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