Hydrogen sorption studies of palladium decorated graphene nanoplatelets and carbon samples |
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| Affiliation: | 1. Kocaeli University, Kocaeli Vocational School, Department of Chemistry and Chemical Processing Technologies, 41140, Kocaeli, Turkey;2. Kocaeli University, Department of Mechanical Engineering, 41380 Kocaeli, Turkey;3. TUBITAK UME, Chemistry Group Laboratories, 41470, Gebze, Kocaeli, Turkey;4. Gebze Technical University, Department of Chemistry, Gebze, Kocaeli, Turkey;1. Schools of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China;2. WW8-Materials Simulation, Department of Materials Science, Friedrich-Alexander-Universität Erlangen-Nürnberg, Dr. Mack Strasse 77, 90762 Fürth, Germany;1. Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE-1410, Brunei Darussalam;2. University of Stuttgart, Institute of Chemical Technology, Faculty of Chemistry, D-70550, Stuttgart, Germany;3. South Ural State University (National Research University), Chelyabinsk, Russian Federation;4. Malaysia-Japan International Instute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia;5. Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, Noida 201309, India;1. Department of Chemistry, National Institute of Technology Warangal, Warangal 506004, Telangana, India;2. Department of Physical Sciences, Kakatiya Institute of Technology and Science, Warangal 506015, Telangana, India;3. School of Advanced Sciences, VIT-AP University (Amaravati Campus), Amaravati, Andhra Pradesh, 522237, India;1. Center of Excellence in Biocatalyst and Sustainable Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;2. NSTDA Supercomputer Center (ThaiSC), National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Klong Luang, Pathum Thani 12120, Thailand;3. Department of Physics and Centre for Functional Photonics (CFP), City University of Hong Kong, Hong Kong, China;4. School of Information Science and Technology, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand;5. School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China;6. Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand;7. Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand |
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| Abstract: | With the increasing population of the world, the need for energy resources is increasing rapidly due to the development of the industry. 88% of the world's energy needs are met from fossil fuels. Since there is a decrease in fossil fuel reserves and the fact that these fuels cause environmental pollution, there is an increase in the number of studies aimed to develop alternative energy sources nowadays. Hydrogen is considered to be a very important alternative energy source due to its some specific properties such as being abundant in nature, high calorific value and producing only water as waste when burned. An important problem with the use of hydrogen as an energy source is its safe storage. Therefore, method development is extremely important for efficient and safe storage of hydrogen. Surface area, surface characteristics and pore size distribution are important parameters in determining the adsorption capacity, and it is needed to develop new adsorbents with optimum parameters providing high hydrogen adsorption capacity. Until recently, several porous adsorbents have been investigated extensively for hydrogen storage. In this study, it was aimed to develop and compare novel Pd/carbon, Pd/multiwalled carbon nanotube, and Pd/graphene composites for hydrogen sorption. All the palladium/carbon composites were characterized by t-plot, BJH desorption pore size distributions, N2 adsorption/desorption isotherms, and SEM techniques. The maximum hydrogen storage of 2.25 wt.% at ?196 °C was achieved for Pd/KAC composite sample. It has been observed that the spillover effect of palladium increases the hydrogen sorption capacity. |
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| Keywords: | Hydrogen sorption carbon samples graphene nanoplatelets Palladium |
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