Print Email Facebook Twitter Palladium Metal Membranes for Hydrogen purification with Titanium as an Intermediate layer Title Palladium Metal Membranes for Hydrogen purification with Titanium as an Intermediate layer Author Krishnamurthy, G. Contributor Bottger, A.J. (mentor) Faculty Mechanical, Maritime and Materials Engineering Department Materials Science and Engineering Date 2016-11-30 Abstract Palladium (Pd) metal membranes are used for the production and effective storage of high purity hydrogen. To overcome the crack and de-lamination of Pd membranes at room temperature during several hydrogen loading and de-loading cycles, a Titanium (Ti) of very small thickness of less than 10 nm is introduced as an intermediate layer between the palladium film and an oxidized Si wafer substrate. The objective of the project is to study the thin film growth of Ti and Pd films deposited for different titanium thickness at different argon sputtering pressures over oxidized Si wafer substrate. The surface roughness analysis of titanium and palladium films with its corresponding AFM images is done by Gwyddion software which shows the initial deposition and growth of films for corresponding film thicknesses. Introducing titanium reduces the surface roughness of palladium and enhances the hydrogen flux through palladium films. Texture and stress measurements of the films from XRD also accounts for the growth of the films on the substrate. The hydrogen loading and de-loading process carried out for Pd and Ti films resulted in an elimination of the crack and de-lamination of the palladium film from the substrate with titanium acting as a good adhesion layer. Subject thin filmshydrogen storageTi adhesive layerAFMPd/Ti Ultra-thin filmX-ray Diffraction To reference this document use: http://resolver.tudelft.nl/uuid:99a9d4f8-a71c-4b28-b158-4559fa387488 Part of collection Student theses Document type master thesis Rights (c) 2016 Krishnamurthy, G. Files PDF 02 Final report.pdf 5.24 MB Close viewer /islandora/object/uuid:99a9d4f8-a71c-4b28-b158-4559fa387488/datastream/OBJ/view