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Nafion/Zeolite Nanocomposite Membrane by in Situ Crystallization for a Direct Methanol Fuel Cell

Chen, Zhongwei and Holmberg, Brett and Li, Wenzhen and Wang, Xin and Deng, Weiqiao and Munoz, Ronnie and Yan, Ya (2006) Nafion/Zeolite Nanocomposite Membrane by in Situ Crystallization for a Direct Methanol Fuel Cell. Chemistry of Materials, 18 (24). pp. 5669-5675. ISSN 0897-4756. https://resolver.caltech.edu/CaltechAUTHORS:20170408-172944789

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Abstract

A method for preparing Nafion/acid functionalized zeolite Beta (NAFB) nanocomposite membranes by in situ hydrothermal crystallization is described. The nanocomposite membranes have a slightly lower proton conductivity but a markedly lower methanol permeability (ca. 40% reduction). When tested with 1 M methanol feed, the direct methanol fuel cells (DMFCs) with the NAFB composite membranes have a slightly higher open circuit voltage (OCV; 3%) and much higher maximum power density (21%) than those with the pure Nafion 115 membranes. With a higher methanol concentration (5 M), the DMFCs with the NAFB composite membranes demonstrate a 14% higher OCV and a 93% higher maximum power density than those with the pure Nafion 115 membranes. Compared with the commercial Nafion 115 membranes, the NAFB composite membranes have slightly lower tensile strength but higher elastic modulus.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/cm060841qDOIArticle
ORCID:
AuthorORCID
Wang, Xin0000-0002-6180-0058
Additional Information:© 2006 American Chemical Society. ReceiVed April 12, 2006. ReVised Manuscript ReceiVed September 11, 2006. The authors gratefully acknowledge the U.S. National Science Foundation (NSF) (CTS-0404376), the U.S. Department of Energy (DE-FG02-05ER15716), and the Riverside Public Utilities for their financial support and E-TEK for generously donating the Pt/C and PtRu/C catalysts.
Funders:
Funding AgencyGrant Number
NSFCTS-0404376
Department of Energy (DOE)DE-FG02-05ER15716
Riverside Public UtilitiesUNSPECIFIED
Issue or Number:24
Record Number:CaltechAUTHORS:20170408-172944789
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170408-172944789
Official Citation:Nafion/Zeolite Nanocomposite Membrane by in Situ Crystallization for a Direct Methanol Fuel Cell Zhongwei Chen, Brett Holmberg, Wenzhen Li, Xin Wang, Weiqiao Deng, Ronnie Munoz, and Yushan Yan Chemistry of Materials 2006 18 (24), 5669-5675 DOI: 10.1021/cm060841q
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76359
Collection:CaltechAUTHORS
Deposited By: 1Science Import
Deposited On:29 Mar 2018 23:35
Last Modified:09 Mar 2020 13:19

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