TY - GEN
T1 - Nafion/acid functionalized zeolite beta nanocomposite membrane for high temperature PEMFCs
AU - Chen, Zhongwei
AU - Holmberg, Brett A.
AU - Wang, Xin
AU - Li, Wenzhen
AU - Yan, Yushan
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2006
Y1 - 2006
N2 - Nafion/Acid Functionalized Zeolite Beta (NAFB) nanocomposite membrane has been successfully prepared by in situ hydrothermal crystallization method. The Acid Functionalized Zeolite Beta nanocrystals < 20 nm were formed and embedded into the Nafion matrix. The physico-chemical properties of all membranes were studied regarding their tensile strength, water uptake, and TGA. Compared with commercial Nafion membrane, the NAFB composite membrane had much higher proton conductivity at 1201°C and reduced RH. NAFB composite membrane and commercial Nafion membranes were also studied in an H2/O2 PEMFC over a wide range of RH values from 25 to 100% at 80° and 120°C. The NAFB composite membrane showed a pronounced improvement over commercial Nafion membranes when operated at 120°C and reduced RH. The high performance of the NAFB composite membranes at low RH was attributed to improved water retention due to the presence of absorbed water species within the pores and on the surface of AFB. NAFB composite membranes had the potential for use with high temperature PEMFC. This is an abstract of a paper presented at the 2006 AIChE National Meeting (San Francisco, CA 11/12-17/2006).
AB - Nafion/Acid Functionalized Zeolite Beta (NAFB) nanocomposite membrane has been successfully prepared by in situ hydrothermal crystallization method. The Acid Functionalized Zeolite Beta nanocrystals < 20 nm were formed and embedded into the Nafion matrix. The physico-chemical properties of all membranes were studied regarding their tensile strength, water uptake, and TGA. Compared with commercial Nafion membrane, the NAFB composite membrane had much higher proton conductivity at 1201°C and reduced RH. NAFB composite membrane and commercial Nafion membranes were also studied in an H2/O2 PEMFC over a wide range of RH values from 25 to 100% at 80° and 120°C. The NAFB composite membrane showed a pronounced improvement over commercial Nafion membranes when operated at 120°C and reduced RH. The high performance of the NAFB composite membranes at low RH was attributed to improved water retention due to the presence of absorbed water species within the pores and on the surface of AFB. NAFB composite membranes had the potential for use with high temperature PEMFC. This is an abstract of a paper presented at the 2006 AIChE National Meeting (San Francisco, CA 11/12-17/2006).
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U2 - 10.1149/ma2007-02/1/12
DO - 10.1149/ma2007-02/1/12
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 081691012
SN - 9780816910120
T3 - AIChE Annual Meeting, Conference Proceedings
BT - 2006 AIChE Annual Meeting
T2 - 2006 AIChE Annual Meeting
Y2 - 12 November 2006 through 17 November 2006
ER -
