Preparation of polyaniline/sodium alanate hybrid using a spray-drying process

Journal Article · Thu May 15 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4873828· OSTI ID:22270983

Moreira, B. R., E-mail: [e-mail], E-mail: [e-mail], E-mail: [e-mail]; Passador, F. R., E-mail: [e-mail], E-mail: [e-mail], E-mail: [e-mail]; Pessan, L. A., E-mail: [e-mail], E-mail: [e-mail], E-mail: [e-mail] ^[1]

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1. Dep. de Engenharia de Materiais, Federal University of São Carlos (Brazil)

Nowadays, hydrogen is highly interesting as an energy source, in particular in the automotive field. In fact, hydrogen is attractive as a fuel because it prevents air pollution and greenhouse emissions. One of the main problems with the utilization of hydrogen as a fuel is its on-board storage. The purpouse of this work was to develop a new hybrid material consisting of a polyaniline matrix with sodium alanate (NaAlH{sub 4}) using a spray-drying process. The polyaniline used for this experiment was synthesized by following a well-established method for the synthesis of the emeraldine base form of polyaniline using dodecylbenzenesulfonic acid as dopant. Micro particles of polyaniline/sodium alanate hybrids with 30 and 50 wt% of sodium alanate were prepared by using a spray-drying technique. Dilute solutions of polyaniline/sodium alanate were first prepared, 10g of the solid materials were mixed with 350 ml of toluene under stirring at room temperature for 24h and the solutions were dried using spray-dryer (Büchi, Switzerland) with 115°C of an inlet temperature. The hybrids were analyzed by differential scanning calorimetry, FT-IR and scanning electron microscopy (SEM). The addition of sodium alanate decreased the glass transition temperature of the hybrids when compared to neat polyaniline. FT-IR spectrum analysis was performed to identify the bonding environment of the synthesized material and was observed that simply physically mixture occurred between polyaniline and sodium alanate. The SEM images of the hybrids showed the formation of microspheres with sodium alanate dispersed in the polymer matrix.

• OSTI ID: 22270983
• Journal Information: AIP Conference Proceedings, Vol. 1593, Issue 1; Conference: PPS-29: 29. international conference of the Polymer Processing Society, Nuremberg (Germany), 15-19 Jul 2013; Other Information: (c) 2014 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
08 HYDROGEN
ALUMINIUM HYDRIDES
ANILINE
CALORIMETRY
COMPARATIVE EVALUATIONS
DIFFERENTIAL THERMAL ANALYSIS
HYDROGEN
HYDROGEN STORAGE
INFRARED SPECTRA
MATRIX MATERIALS
ORGANIC POLYMERS
SCANNING ELECTRON MICROSCOPY
SODIUM COMPOUNDS
SPRAY DRYING
TEMPERATURE RANGE 0273-0400 K
TOLUENE
TRANSITION TEMPERATURE