Preparation,characterization, and properties of Pt/Al2O3/cordierite monolith catalyst for hydrogen generation from hydrolysis of sodium borohydride in a flow reactor |
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| Affiliation: | 1. Shandong Provincial Key Laboratory Of Polymer Material Advanced Manufacturing Technology, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, PR China;2. State Key Laboratory Base of Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China;3. College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China;4. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China;1. College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, Sichuan, China;2. College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China;3. College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, China;4. Chengdu Institute of Geology and Mineral Resources, Chengdu, 610081, Sichuan, China;5. Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia;1. School of Materials Science and Engineering, Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, South China University of Technology, Guangzhou 510641, PR China;2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, PR China;3. Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials, Guangxi Key Laboratory of Information Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, PR China;1. College of Biological, Chemical Science and Chemical Engineering, Jiaxing University, Jiaxing, 314001, China;2. School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, China;3. Institute of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China;4. Department of Energy and Process Engineering, Faculty of Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway;1. College of Chemistry and Life Science, Shenyang Normal University, Shenyang 110034, PR China;2. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, PR China;3. Experimental Center, Shenyang Normal University, Shenyang 110034, PR China;1. Ankara University, Faculty of Engineering, Chemical Engineering Department, 06100, Tandogan, Ankara, Turkey;2. Ankara Y?ld?r?m Beyaz?t University, Central Research Laboratory Application and Research Center, 06010, Keçiören, Ankara, Turkey;3. Gazi University, Faculty of Engineering, Chemical Engineering Department, 06570, Maltepe, Ankara, Turkey |
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| Abstract: | High-purity hydrogen can be generated by hydrolysis of sodium borohydride and used for operating portable proton exchange membrane fuel cells. The monolith supported catalyst is suitable for practical NaBH4-based hydrogen generation system due to its simple reactor structure miniaturizing for small size applications and easy separation from the spent solution. In the present study, a structured catalyst was prepared by wash-coating the Al2O3 sol over the wall of cordierite monolith followed by depositing Pt using incipient wet impregnation method; then the monolithic catalysts were characterized by XRF, XRD, SEM, HRTEM and XPS. The catalytic activity of the Pt-based monolithic catalyst towards hydrolysis of NaBH4 was tested using a flow reactor under ambient conditions in an autothermal manner. The characterization results show that Pt nanoparticles are highly dispersed on the surface of the Al2O3-coated layer. A continuous and stable hydrogen generation can be obtained by feeding the reactant (10 wt% NaBH4–5 wt % NaOH) into the tube reactor loaded with the monolithic catalyst at feed rates of 0.5–2.0 mL min?1. |
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| Keywords: | Sodium borohydride Hydrolysis Platinum catalyst Cordierite monolith Washcoating |
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