DataVXComposite InterfacesPaper
journal article·2011-01

Preparation and Characterization of Nafion/Sulfonated SiO2 Molecular Sieve Composite Membranes

Fanghui H. Wang, Lu Zhen, Zhu Hong, Zhang Xinwei, Guo Zhijun, Wei Yongsheng

Composite Interfaces· Volume 18· Issue 3
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Source abstract

Abstract

A Nafion/sulfonated SiO2 molecular sieve composite membrane was prepared by solution casting with sulfonated SiO2 molecular sieve as the modifier. The ATR/FT-IR results showed that sulfonated SiO2 molecular sieve did not change the structure of the membrane. The SEM and XRD results showed that the molecular sieve was distributed uniformly in the membrane. The proton conductivity, methanol permeability, water content, and swelling degree were measured. Compared with Nafion membrane, the composite membrane had higher water content and proton conductivity and lower methanol permeability. The overall performance was the best when the content of sulfonated SiO2 molecular sieve was 5 wt%. These results indicated that Nafion/sulfonated SiO2 molecular sieve composite membranes would be excellent candidate membrane materials for direct methanol fuel cell (DMFC) applications.
Source: openalex_inverted_index · Quality: baseline

Research context

Composites

OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Advancements in Solid Oxide Fuel Cells

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

a Institute of Modern Catalyst, State Key Laboratory of Chemical Resource Engineering, School of Science, Beijing University of Chemical Technology, 15 North Third Ring Road, Chaoyang District, Beijing City 100029, China

b School of Science, Beijing Jiaotong University, Beijing 100044, China

c Institute of Modern Catalyst, State Key Laboratory of Chemical Resource Engineering, School of Science, Beijing University of Chemical Technology, 15 North Third Ring Road, Chaoyang District, Beijing City 100029, China

d School of Science, Beijing Jiaotong University, Beijing 100044, China

e School of Science, Beijing Jiaotong University, Beijing 100044, China

f School of Science, Beijing Jiaotong University, Beijing 100044, China

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