Molybdenum disulfide decorated palm oil waste activated carbon as an efficient catalyst for hydrogen generation by sodium borohydride hydrolysis |
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| Affiliation: | 1. Membrane Research Lab, School of Chemical Engineering, Vellore Institute of Technology, Vellore 632014, India;2. Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates;3. Department of Chemical Engineering, The University of Nottingham-Malaysia Campus, 43500 Selangor Darul Ehsan, Malaysia;1. School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang Province 312000, China;2. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang Province 315211, China;3. College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China;4. College of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu Province 210093, China;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. 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 |
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| Abstract: | Development of cost-effective catalyst material with enhanced activity for hydrogen generation is highly desirable for hydrogen powered portable applications. In this work, molybdenum disulfide (MoS2) incorporated on palm oil waste activated carbon (POAC) was used as a novel catalyst for enhanced hydrogen production by sodium borohydride (NaBH4) hydrolysis. Hydrothermally synthesized MoS2/POAC catalyst composite was characterized by SEM, EDX, XRD, FTIR, Raman, TGA and Surface area analysis. Characterization studies revealed the uniform and complete synthesis of MoS2 nanoparticles on the POAC surface with crystallite size of 18.2 nm. The catalyst composite showed enhancement in thermal stability and reduction in specific surface area as compared with POAC. Hydrogen generation investigations showed ideal weight ratio of composite catalyst as 10:1 (w/w of POAC: MoS2) and optimal catalyst to feed weight ratio as 0.07. MoS2/POAC catalyst with 10 wt% of POAC loading recorded the maximum catalytic activity of 1170.66 mL/g min with lower activation energy of 39.1 kJ/mol. The catalyst composite exhibited virtuous reusability with a 28% loss in activity for nine cycle regeneration run. Thus, MoS2/POAC catalyst system is highly attractive for commercial applicability and is a potential candidate for enhanced hydrogen production through NaBH4 hydrolysis. |
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| Keywords: | Molybdenum sulfide Activated carbon Hydrogen generation Palm oil waste Hydrogen catalyst |
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