Nafion-peptized laponite clay nanocomposite membrane for PEMFC

Mishra, Ananta Kumar and Bae, Seon-Hyeong and Kim, Nam Hoon and Lau, Kin-tak and Lee, Joong Hee (2012) Nafion-peptized laponite clay nanocomposite membrane for PEMFC. In: 20th International Symposium on Processing and Fabrication of Advanced Materials (PFAM 20), 15-18 Dec 2011, Hong Kong.

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Nafion-clay nanocomposite membrane has been prepared by dispersing unmodified and acid activated Laponite XLS in Nafion 20% dispersion. The resulting membranes possess better proton conductivity and mechanical strength as compared to the virgin membrane. Acid activation of the nanoclay leads to the in-situ generation of H 3PO 4 by the hydrolysis of the peptizer present on the surface of the nanoclay. The in-situ generated H 3PO 4 helps in improving all the technical properties of the nanocomposite including the water uptake and proton conductivity of the nanocomposite, containing acid activated clay compared to the nanocomposite, containing unmodified clay. The maximum proton conductivity of 270.2 mS/cm is achieved at 110 °C for the nanocomposite membrane containing 3% acid-activated Laponite compared to 136.2 mS/cm for the virgin Nafion.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Series title: Advanced Materials Research (Volume 410)
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - No Department (Up to 30 Jun 2013)
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - No Department (Up to 30 Jun 2013)
Date Deposited: 28 Jun 2013 05:10
Last Modified: 04 Sep 2017 02:57
Uncontrolled Keywords: clay; membrane; nafion; nanocomposite; peptizer; polymer electrolyte membrane fuel cell (FEMFC); proton conductivity
Fields of Research (2008): 09 Engineering > 0904 Chemical Engineering > 090404 Membrane and Separation Technologies
10 Technology > 1007 Nanotechnology > 100708 Nanomaterials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
Fields of Research (2020): 40 ENGINEERING > 4004 Chemical engineering > 400409 Separation technologies
40 ENGINEERING > 4018 Nanotechnology > 401807 Nanomaterials
40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
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