A novel membrane for DMFC - Na2Ti3O7 nanotubes/Nafion® composite membrane

Yongsheng Wei; Liangbo Shen; Zhongming Wang; Wein Duo Yang; Hong Zhu; Hongtan Liu

doi:10.1016/j.ijhydene.2010.12.096

A novel membrane for DMFC - Na₂Ti₃O₇ nanotubes/Nafion^® composite membrane

Yongsheng Wei, Liangbo Shen, Zhongming Wang, Wein Duo Yang, Hong Zhu, Hongtan Liu

Mechanical & Aerospace Engineering

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

22 Scopus citations

Abstract

In this study, novel sodium titanate (Na₂Ti₃O ₇) nanotube/Nafion^® composite membranes were prepared by a solution casting method. The properties of these composite membranes were studied using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Additionally, the water uptake, methanol permeability, proton conductivity, and selectivity of the composite membranes were measured to evaluate the applicability of these membranes in DMFCs. It was found that the addition of Na₂Ti₃O₇ nanotubes enhanced the water uptake and reduced the methanol permeability of the composite membranes. The proton conductivity and methanol permeability depend on the Na₂Ti₃O₇ nanotube content. Using the selectivity, the optimal nanotube contents was found to be 5 wt%. The new composite membrane was found to have significantly higher selectivity than a pure Nafion^® membrane and thus has good potential to outperform Nafion^® in DMFCs.

Original language	English (US)
Pages (from-to)	5088-5095
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	36
Issue number	8
DOIs	https://doi.org/10.1016/j.ijhydene.2010.12.096
State	Published - Apr 2011

Keywords

DMFC
Membrane selectivity
Methanol crossover
NaTiO/Nafion composite membrane
Sodium titanate nanotubes

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijhydene.2010.12.096

Cite this

@article{7c0ce78630ce4b049b9ff76523da5eb8,

title = "A novel membrane for DMFC - Na2Ti3O7 nanotubes/Nafion{\textregistered} composite membrane",

abstract = "In this study, novel sodium titanate (Na2Ti3O 7) nanotube/Nafion{\textregistered} composite membranes were prepared by a solution casting method. The properties of these composite membranes were studied using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Additionally, the water uptake, methanol permeability, proton conductivity, and selectivity of the composite membranes were measured to evaluate the applicability of these membranes in DMFCs. It was found that the addition of Na2Ti3O7 nanotubes enhanced the water uptake and reduced the methanol permeability of the composite membranes. The proton conductivity and methanol permeability depend on the Na2Ti3O7 nanotube content. Using the selectivity, the optimal nanotube contents was found to be 5 wt%. The new composite membrane was found to have significantly higher selectivity than a pure Nafion{\textregistered} membrane and thus has good potential to outperform Nafion{\textregistered} in DMFCs.",

keywords = "DMFC, Membrane selectivity, Methanol crossover, NaTiO/Nafion composite membrane, Sodium titanate nanotubes",

author = "Yongsheng Wei and Liangbo Shen and Zhongming Wang and Yang, {Wein Duo} and Hong Zhu and Hongtan Liu",

note = "Funding Information: The authors gratefully acknowledge the financial supports from China Scholarship Council Postgraduate Scholarship Program (No. 2008709021 ), International S&T Cooperation Program of China (No. 2006DFA61240 and No. 2009DFA63120 ), and National Science Foundation of China (No. 50674006 , No. 20876013 , and Key Program No. 20636060). We also thank Mr. Jingwei Zhang and Mr. Zhijun Zhang in the Lab of Special Function Materials, Henan University, for their assistance.",

year = "2011",

month = apr,

doi = "10.1016/j.ijhydene.2010.12.096",

language = "English (US)",

volume = "36",

pages = "5088--5095",

journal = "International Journal of Hydrogen Energy",

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AU - Wei, Yongsheng

AU - Shen, Liangbo

AU - Wang, Zhongming

AU - Yang, Wein Duo

AU - Zhu, Hong

AU - Liu, Hongtan

N1 - Funding Information: The authors gratefully acknowledge the financial supports from China Scholarship Council Postgraduate Scholarship Program (No. 2008709021 ), International S&T Cooperation Program of China (No. 2006DFA61240 and No. 2009DFA63120 ), and National Science Foundation of China (No. 50674006 , No. 20876013 , and Key Program No. 20636060). We also thank Mr. Jingwei Zhang and Mr. Zhijun Zhang in the Lab of Special Function Materials, Henan University, for their assistance.

PY - 2011/4

Y1 - 2011/4

N2 - In this study, novel sodium titanate (Na2Ti3O 7) nanotube/Nafion® composite membranes were prepared by a solution casting method. The properties of these composite membranes were studied using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Additionally, the water uptake, methanol permeability, proton conductivity, and selectivity of the composite membranes were measured to evaluate the applicability of these membranes in DMFCs. It was found that the addition of Na2Ti3O7 nanotubes enhanced the water uptake and reduced the methanol permeability of the composite membranes. The proton conductivity and methanol permeability depend on the Na2Ti3O7 nanotube content. Using the selectivity, the optimal nanotube contents was found to be 5 wt%. The new composite membrane was found to have significantly higher selectivity than a pure Nafion® membrane and thus has good potential to outperform Nafion® in DMFCs.

AB - In this study, novel sodium titanate (Na2Ti3O 7) nanotube/Nafion® composite membranes were prepared by a solution casting method. The properties of these composite membranes were studied using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Additionally, the water uptake, methanol permeability, proton conductivity, and selectivity of the composite membranes were measured to evaluate the applicability of these membranes in DMFCs. It was found that the addition of Na2Ti3O7 nanotubes enhanced the water uptake and reduced the methanol permeability of the composite membranes. The proton conductivity and methanol permeability depend on the Na2Ti3O7 nanotube content. Using the selectivity, the optimal nanotube contents was found to be 5 wt%. The new composite membrane was found to have significantly higher selectivity than a pure Nafion® membrane and thus has good potential to outperform Nafion® in DMFCs.

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KW - Sodium titanate nanotubes

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