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linear-voltammetry
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Morphology and hydrogen sensing studies of the electrodeposited nanostructure palladium on porous silicon
, Article International Journal of Nanotechnology ; Volume 6, Issue 10-11 , 2009 , Pages 892-901 ; 14757435 (ISSN) ; Iraji zad, A ; Taghavi, N. S ; Abbaszadeh, D ; Dolati, A ; Mahshid, S. S ; Sharif University of Technology
2009
Abstract
We have investigated hydrogen sensing properties of electrodeposited Pd clusters on macroporous silicon substrates. Porous layer was prepared by electrochemical etching of p-type silicon (100) wafer in organic electrolyte DMF (dimethylformamide) diluted by HF (%95 Vol. %). The deposition of Pd was carried out by linear voltammetry (LV) technique. This technique was taken for reduction of palladium ions in the potential range from 0.4 V to -1 V vs. SCE, at the scan rate of 20 mV s-1. Some samples were annealed at 300°C for an hour in air to study the effect of heat treatment on their gas sensitivity. Surface structural and chemical properties of the samples were characterised using Scanning...