Preparation of different thin film catalysts by direct current magnetron sputtering for hydrogen generation |
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| Authors: | Gamze BOZKURT Abdulkadir
ZER Aye BAYRAKEKEN YURTCAN |
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| Affiliation: | 1. Project Coordination Implementation and Research Center, Erzurum Technical University, Erzurum, Turkey ; 2. Chemical Engineering Department, Faculty of Engineering, Atatürk University, Erzurum, Turkey ; 3. Nanoscience and Nanoengineering Department, Graduate School of Natural and Applied Sciences, Atatürk University, Erzurum, Turkey |
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| Abstract: | In this study, thin films of Co, Ni, Pd, and Pt were prepared on Co 3 O 4 support material in pellet form using the direct current (DC) magnetron sputtering method for use as catalysts for hydrogen generation from NaBH 4 .Characterization of the catalysts was carried out using X-ray diffraction (XRD), scanning electronic microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). According to cross-sectional SEM images, catalyst thicknesses were observed in the range of approximately 115.3–495.8 nm. The particle sizes were approximately 25.0, 21.4, 33.9, and 9.5 nm for Ni-Co 3 O 4 , Co-Co 3 O 4 , Pd-Co 3 O 4 , and Pt-Co 3 O 4 catalysts, respectively. The increase in NaOH initial concentration provides an increase in the rate of hydrogen generation for Co, Ni, and Pd catalysts. A maximum hydrogen generation rate of 1653 mL/g cat .min was obtained for the Pt-Co 3 O 4 catalyst. |
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| Keywords: | Direct current magnetron sputtering hydrogen generation sodium borohydride catalyst |
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