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  Global Journal of Inorganic Chemistry. Volume 2, Issue 1 (2011) pp. 12-17
  Research Article
 
Investigation of titanium decorated polyaniline and polyphyenylacetylene for use as hydrogen storage materials
  Michael J. Wolvertona,b, Ganesh K. Kannarpadyc, Abhijit Bhattacharyyaa,*, Dustin P. Emanisd  
     
a Dept. of Applied Science, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
b Los Alamos Neutron Science Center, Los Alamos National Laboratory, Los Alamos, NM 87505, USA
c Nanotechnology Center, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
d Dept. of Chemistry, University of Arkansas at Little Rock, Little Rock, AR 72204, USA

   
  Abstract  
  Recent studies in computational chemistry predict that certain polymers are capable of adsorbing large amounts of hydrogen (>7% by mass in some cases) at room temperature when active transition metal sites are present. We attempt the synthesis of titanium decorated polyaniline (PANI) and titanium decorated polyphenylacetylene (PPA) by reaction with titanium nanoparticles. Infrared spectroscopy provides characterization of the polymers, and some evidence of polymer-titanium bonding schemes indicated in the literature. Additional indication of polymer-titainum reaction is evident from changes in properties such as the polymer melting point. The hydrogen absorption properties of the titanium decorated polymers are investigated at room temperature by volumetric techniques. We measured no significant hydrogen uptake, or subsequent release, for either material at pressures up to 100 bar. Subsequent high temperature, high pressure hydrogen soaks produced no measurable effect in hydrogen absorption properties of these materials
     
  Keywords  
  Hydrogen storage; Titanium decorated polyaniline; Titanium decorated polyphyenylacetylene  
     
   
   
   
   
     

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