SPVdF-HFP/SGO nanohybrid proton exchange membrane for the applications of direct methanol fuel cells

Hariprasad Ranganathan; Vinothkannan Mohanraj; Ae Rhan Kim; Dong Jin Yoo

doi:10.1080/01932691.2019.1660672

SPVdF-HFP/SGO nanohybrid proton exchange membrane for the applications of direct methanol fuel cells

Hariprasad Ranganathan
, Vinothkannan Mohanraj
, Ae Rhan Kim
, Dong Jin Yoo

Jeonbuk National University

Research output: Contribution to journal › Article › peer-review

54 Citations (Scopus)

Abstract

Sulfonated poly (vinylidene fluoride-co-hexafluoropropylene) (SPVdF-HFP)/sulfonated graphene oxide (SGO) hybrid membrane was prepared via solution casting process. Incorporation of SGO nanosheets into SPVdF-HFP matrix increases the density of sulfonic acid moieties of hybrid membrane. This offer better water uptake, good proton conductivity, than pristine SPVdF-HFP membrane. Additionally, the complex structure generated between SGO and membrane chains helps to reduce methanol uptake and swelling ratio of the hybrid membrane. The formation of electrostatic interaction between membrane backbone and SGO skeleton helps the SPVdF-HFP/SGO to retained lower weight loss than SPVdF-HFP during TGA analysis. The presence of SGO nanosheets in membrane matrix is confirmed by morphological studies. The SPVdF-HFP/SGO membrane achieved maximum proton conductivity of 7.8 mS/cm at 70 °C and low methanol permeability of 2.567 × 10 ⁻⁷ cm ²/s at 70 °C whereas the pristine SPVdF-HFP membrane exhibits 1.7 mS/cm and 3.105 × 10 ⁻⁷ cm ²/s. From the obtained good results of hybrid membrane, we believe that the SPVdF-HFP/SGO would be a promising candidate for the application of DMFCs.

Original language	English
Pages (from-to)	33-45
Number of pages	13
Journal	Journal of Dispersion Science and Technology
Volume	42
Issue number	1
DOIs	https://doi.org/10.1080/01932691.2019.1660672
Publication status	Published - 31 Dec 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 Taylor & Francis Group, LLC.

Funding

This work supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20184030202210). This work was supported by grants from the Medical Research Center Program (NRF-2017R1A5A2015061) through the National Research Foundation (NRF), which is funded by the Korean Government (MSIP).

Funders	Funder number
Medical Research Center Program	NRF-2017R1A5A2015061
Ministry of Trade, Industry and Energy	20184030202210
Ministry of Science and ICT
National Research Foundation of Korea
Korea Institute of Energy Technology Evaluation and Planning

Keywords

SGO
SPVDF-HFP
hybrid membrane
proton conductivity
water uptake

ASJC Scopus subject areas

Surfaces, Coatings and Films
Polymers and Plastics
Physical and Theoretical Chemistry

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10.1080/01932691.2019.1660672

Cite this

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title = "SPVdF-HFP/SGO nanohybrid proton exchange membrane for the applications of direct methanol fuel cells",

abstract = "Sulfonated poly (vinylidene fluoride-co-hexafluoropropylene) (SPVdF-HFP)/sulfonated graphene oxide (SGO) hybrid membrane was prepared via solution casting process. Incorporation of SGO nanosheets into SPVdF-HFP matrix increases the density of sulfonic acid moieties of hybrid membrane. This offer better water uptake, good proton conductivity, than pristine SPVdF-HFP membrane. Additionally, the complex structure generated between SGO and membrane chains helps to reduce methanol uptake and swelling ratio of the hybrid membrane. The formation of electrostatic interaction between membrane backbone and SGO skeleton helps the SPVdF-HFP/SGO to retained lower weight loss than SPVdF-HFP during TGA analysis. The presence of SGO nanosheets in membrane matrix is confirmed by morphological studies. The SPVdF-HFP/SGO membrane achieved maximum proton conductivity of 7.8 mS/cm at 70 °C and low methanol permeability of 2.567 × 10 −7 cm 2/s at 70 °C whereas the pristine SPVdF-HFP membrane exhibits 1.7 mS/cm and 3.105 × 10 −7 cm 2/s. From the obtained good results of hybrid membrane, we believe that the SPVdF-HFP/SGO would be a promising candidate for the application of DMFCs.",

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author = "Hariprasad Ranganathan and Vinothkannan Mohanraj and Kim, \{Ae Rhan\} and Yoo, \{Dong Jin\}",

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AU - Ranganathan, Hariprasad

AU - Mohanraj, Vinothkannan

AU - Kim, Ae Rhan

AU - Yoo, Dong Jin

PY - 2020/12/31

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N2 - Sulfonated poly (vinylidene fluoride-co-hexafluoropropylene) (SPVdF-HFP)/sulfonated graphene oxide (SGO) hybrid membrane was prepared via solution casting process. Incorporation of SGO nanosheets into SPVdF-HFP matrix increases the density of sulfonic acid moieties of hybrid membrane. This offer better water uptake, good proton conductivity, than pristine SPVdF-HFP membrane. Additionally, the complex structure generated between SGO and membrane chains helps to reduce methanol uptake and swelling ratio of the hybrid membrane. The formation of electrostatic interaction between membrane backbone and SGO skeleton helps the SPVdF-HFP/SGO to retained lower weight loss than SPVdF-HFP during TGA analysis. The presence of SGO nanosheets in membrane matrix is confirmed by morphological studies. The SPVdF-HFP/SGO membrane achieved maximum proton conductivity of 7.8 mS/cm at 70 °C and low methanol permeability of 2.567 × 10 −7 cm 2/s at 70 °C whereas the pristine SPVdF-HFP membrane exhibits 1.7 mS/cm and 3.105 × 10 −7 cm 2/s. From the obtained good results of hybrid membrane, we believe that the SPVdF-HFP/SGO would be a promising candidate for the application of DMFCs.

AB - Sulfonated poly (vinylidene fluoride-co-hexafluoropropylene) (SPVdF-HFP)/sulfonated graphene oxide (SGO) hybrid membrane was prepared via solution casting process. Incorporation of SGO nanosheets into SPVdF-HFP matrix increases the density of sulfonic acid moieties of hybrid membrane. This offer better water uptake, good proton conductivity, than pristine SPVdF-HFP membrane. Additionally, the complex structure generated between SGO and membrane chains helps to reduce methanol uptake and swelling ratio of the hybrid membrane. The formation of electrostatic interaction between membrane backbone and SGO skeleton helps the SPVdF-HFP/SGO to retained lower weight loss than SPVdF-HFP during TGA analysis. The presence of SGO nanosheets in membrane matrix is confirmed by morphological studies. The SPVdF-HFP/SGO membrane achieved maximum proton conductivity of 7.8 mS/cm at 70 °C and low methanol permeability of 2.567 × 10 −7 cm 2/s at 70 °C whereas the pristine SPVdF-HFP membrane exhibits 1.7 mS/cm and 3.105 × 10 −7 cm 2/s. From the obtained good results of hybrid membrane, we believe that the SPVdF-HFP/SGO would be a promising candidate for the application of DMFCs.

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KW - water uptake

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SPVdF-HFP/SGO nanohybrid proton exchange membrane for the applications of direct methanol fuel cells

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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