Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1621007 | Journal of Alloys and Compounds | 2009 | 5 Pages |
Abstract
Hydrogen uptake of Pt–Pd alloy decorated MWCNTs was performed under ambient temperature and moderate pressures. Nanocrystalline alloy is coated on the MWCNTs via thermal vapour deposition (TVD) method. The size of the Pt–Pd alloy decorated by TVD on MWCNTs is 5 nm. The maximum reversible hydrogen storage exhibited by nanocomposite, measured at 298 K and pressure of 20 atm is found to be ∼2.0 wt.%, which is nearly 3 times more as compared to pristine CNTs performed under similar experimental conditions. The improvement of hydrogen storage in coated sample as compared to pristine CNTs is due to the spillover of physisorbed hydrogen from the alloy nanoparticles to the CNTs.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Sang-Woon Hwang, Sami-ullah Rather, Mehraj-ud-din Naik, Chang Su Soo, Kee-Suk Nahm,