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Polymer-induced surface modifications of Pd-based thin films leading to improved kinetics in hydrogen sensing and
Peter Ngene1, Ruud J Westerwaal, Sumit Sachdeva
1Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering, Delft University of Technology, Delft (The Netherlands). p.ngene@tudelft.nl.
Abstract:
The catalytic properties of Pd alloy thin films are enhanced by a thin sputtered PTFE coating, resulting in profound improvements in hydrogen adsorption and desorption in Pd-based and Pd-catalyzed hydrogen sensors and hydrogen storage materials. The remarkably enhanced catalytic performance is attributed to chemical modifications of the catalyst surface by the sputtered PTFE leading to a possible change in the binding strength of the intermediate species involved in the hydrogen sorption process.
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