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Hydrogen storage of multiwall carbon nanotube decorated with bimetallic Pt-Pd nano catalysts using thermal vapor deposition  

Hwang, Sang-Woon (School of Chemical Engineering, Chonbuk National University)
So, Chang-Su (Department of Hydrogen and Fuel Cells Engineering, Specialized Graduate School, Chonbuk National University)
Naik, Mehraj-Ud-Din (School of Chemical Engineering, Chonbuk National University)
Nahm, Kee-Suk (School of Chemical Engineering, Chonbuk National University)
Publication Information
Journal of Energy Engineering / v.18, no.2, 2009 , pp. 141-146 More about this Journal
Abstract
In present work, we study the hydrogen storage of MWNT decorated with bimetallic Pt and Pd nanosize catalysts by Thermal Vapor Deposition [TVD]. The size of Pt and Pd particles is controlled as 5nm, 3nm, respectively by TVD. Before hydrogen storage measurement, the sample was heated for 1hr at $200^{\circ}C$ in H2 atmosphere. The Hydrogen sto rage of the sample was performed at room temperature and 33~34atm. The hydrogen storage of this composite showed 3.2wt% at 298K and 34atm, for three times. At 4th cycle, hydrogen storage is decreased to 1.5wt%, owing to the aggregation of bimetallic Pt and Pd nano particles.
Keywords
Hydrogen storage; Pt; Pd; catalyst;
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