PDMA cryogel beads as a catalyst for hydrogen generation from NaBH4 alcoholysis |
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| Affiliation: | 1. Eskisehir Osmangazi University, Faculty of Engineering and Architecture, Department of Biomedical Engineering, Eskisehir, 26480, Turkey;2. Eskisehir Osmangazi University, Polymer Science and Technology Department, Eskisehir, 26480, Turkey;3. Eskisehir Osmangazi University, Faculty of Science, Department of Chemistry, Eskisehir, 26480, Turkey;1. Khristianovich Institute of Theoretical and Applied Mechanics of SB RAS, 630090, Novosibirsk-90, Institutskaya Str. 4/1, Russian Federation;2. Voevodsky Institute of Chemical Kinetics and Combustion of SB RAS, 630090, Novosibirsk-90, Institutskaya Str. 3, Russian Federation;3. Novosibirsk State University, Novosibirsk-90, Pirogov Str. 2, 630090, Russian Federation;1. Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China;2. Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun 130022, China;1. Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, PR China;2. Department of Energy & Materials Engineering, Dongguk University, Seoul 04620, Republic of Korea;1. Department of Physics, University of Agriculture-38040, Faisalabad, Pakistan;2. Department of Chemistry, University of Agriculture-38040, Faisalabad, Pakistan;1. School of Chemistry, University of Tehran, Iran;2. Computational and Bio-Simulation Research Group, University of Calabar, Nigeria;1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, China;2. Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing, 400030, China |
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| Abstract: | Poly2-(dimethylamino)ethyl methacrylate] cryogel beads were prepared under cryogenic conditions via free radical polymerization and used as a catalyst in the production hydrogen (H2) from NaBH4 by alcoholysis. The efficiency of the catalyst was investigated in the range of 0–40 °C by both methanolysis and ethylene glycolysis reactions, and its reuse was tested. Accordingly, it was observed that the methanolysis reaction was faster than the ethylene glycolysis reaction. When the hydrogen generation rate (HGR) values between 0 and 40 °C were compared, it was concluded that the methanolysis reaction rate increased from 1550 to 4800 mL.min?1g?1 and the ethylene glycolysis reaction rate increased from 923 to 3551 mL.min?1g?1. In the alcoholysis reaction catalyzed by PDMA cryogel beads, the activation energy was calculated as 19.34 and 22.77 kJ.mol?1 for the methanolysis and ethylene glycolysis reactions, respectively. After six repetitions, the catalyst activity was calculated over 50% for NaBH4 methanolysis and ethylene glycolysis. |
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| Keywords: | PDMA cryogel beads Hydrogen production |
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