NDLI: Hydrogen Sorption Behavior in Conducting Polymer Nanostructures

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Michael, U. Niemann Sesha, S. Srinivasan Ayala, R. Phani Kumar, Ashok Goswami, D. Yogi Elias, K. Stefanakos
Copyright Year	2009
Abstract	Conducting polyaniline nanofibers were synthesized using chemical templating method followed by electrospun process. These nanofibers have been compared with their standard bulk counterpart and found to be stable up to 150°C. Polyaniline nanofibers prepared by electrospun method reveal high hydrogen uptake of 10wt.% at around 100°C in the first absorption run. However, in the consecutive hydrogenation and dehydrogenation cycles, the hydrogen capacity diminishes. This is most likely due to hydrogen loading into the polymer matrix, chemisorption and saturation effects. A reversible hydrogen storage capacity of ∼3–10 wt.% was also found in the new batch of electrospun nanofibers at different temperatures. The surface morphologies before and after hydrogen sorption of these PANI nanofibers encompass significant changes in the microstructure (nanofibrallar swelling effect) which clearly suggest effective hydrogen uptake and release.
Starting Page	7
Ending Page	9
Page Count	3
File Format	PDF
ISBN	9780791843796
DOI	10.1115/IMECE2009-11554
e-ISBN	9780791838631
Volume Number	Volume 6: Emerging Technologies: Alternative Energy Systems; Energy Systems: Analysis, Thermodynamics and Sustainability
Conference Proceedings	ASME 2009 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2009-11-13
Publisher Place	Lake Buena Vista, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Conducting polymers Sorption Cycles Hydrogen storage Temperature Absorption Hydrogen Nanostructures Nanofibers Polymers
Content Type	Text
Resource Type	Article

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