Hydrolysis of sodium borohydride solutions both in the presence of Ni–B catalyst and in the case of microwave application |
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| Affiliation: | 1. School of Health, Safety and Health at Work, Siirt University, 56100, Siirt, Turkey;2. Technical Services Vocational High School, Department of Electric and Energy, Siirt University, 56100, Siirt, Turkey;3. Faculty of Engineering, Department of Electrical and Electronics Engineering, Siirt University, 56100, Siirt, Turkey;4. Faculty of Engineering, Department of Chemical Engineering, Siirt University, 56100, Siirt, Turkey;1. School of Materials and Chemical Engineering, Xi''an Technological University, Xi''an 710021, China;2. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi''an, 710072, China;1. School of Materials and Chemical Engineering, Xi''an Technological University, Xi''an 710021, China;2. School of Food and Bioengineering, Xihua University, Chengdu 610065, China;1. Department of Chemistry, Faculty of Science and Letters, Siirt University, Siirt, Turkey;2. Department of Chemical Engineering, Faculty of Engineering, Siirt University, Siirt, Turkey;1. Siirt University, Faculty of Science and Literature, Department of Chemistry, Siirt, Turkey;2. Siirt University, Faculty of Engineering and Architecture, Department of Chemical Engineering, Siirt, Turkey;3. Siirt University, School of Health, Siirt, Turkey;1. State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China;2. Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Hangzhou 310013, PR China;1. Department of Chemical Engineering, Faculty of Engineering, Siirt University, Siirt, Turkey;2. Department of Chemical Engineering, Faculty of Engineering, Van Yüzüncü Yıl University, Van, Turkey |
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| Abstract: | In this study, the nickel boron (Ni–B) catalyst was studied in the microwave environment for hydrogen production from the hydrolysis of a sodium borohydride solution to release H2. The catalytic activity of the Ni–B catalyst was measured by hydrogen production from the hydrolysis of sodium borohydride. The catalytic properties of the Ni–B catalyst in the microwave medium were examined by considering parameters such as NaOH concentration, NaBH4 concentration, catalyst amount, temperature, and microwave power. Thus, the results obtained from the experiments carried out with Ni–B catalyst both in non-microwave and microwave media were compared. In the experiments, under microwave irradiation, the best result was the release of hydrogen gas from the Ni–B catalyst by applying 100 W of microwave energy at 40 °C. Activation energy values were calculated using the reaction rate constants obtained at different temperatures in the nth order kinetic model and the Langmuir - Hinshelwood model. |
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| Keywords: | Sodium borohydride Ni–B Microwave Hydrolysis |
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