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A remarkable increase in the adsorbed H2 amount: Influence of pore size distribution on the H2 adsorption capacity of Fe-BTC |
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| Affiliation: | 1. Sabanc? University, Faculty of Engineering and Natural Sciences, Materials Science and Nanoengineering Program, 34956, Istanbul, Turkey;2. Sabanc? University, SUNUM Nanotechnology Research Centre, 34956, Istanbul, Turkey;1. Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450, Istanbul, Turkey;2. Koç University TÜPRA? Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450, Istanbul, Turkey;3. Turkish Petroleum Refineries Co. (TÜPRA?) R&D Center, Guney Mah. Petrol Cad., Korfez, 41790, Kocaeli, Turkey;4. Koç University Surface Science and Technology Center (KUYTAM), Koç University, Rumelifeneri Yolu, Sariyer, 34450, Istanbul, Turkey;1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China;2. China-EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology, Wuhan, 430074, China;3. Shenzhen Research Institute of Huazhong University of Science and Technology, Shenzhen, 518057, China;1. Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70565 Stuttgart, Germany;2. BASF SE, Chemicals Research & Engineering, 67056 Ludwigshafen, Germany;3. Diamond Light Source Ltd., Harwell Science and Innovation Campus, OX11 0DE Didcot, United Kingdom;4. Department of Energy Engineering, Gyeongnam National University of Science and Technology, Naedong-ro 139beon-gil 8, 52849 Jinju, Gyeongnam, South Korea;1. Institute of Science and Technology of Materials (IMRE), University of Havana, 10400 Havana, Cuba;2. Center for Applied Science and Advanced Technologies of IPN, 11500 Mexico, DF, Mexico;3. Federal University of Ceará, Department of Chemical Engineering, GPSA-Group of Research in Separations by Adsorption, Campus do Pici, Fortaleza, Ceará 60001, Brazil;4. Federal University of Rio Grande do Norte, Institute of Chemistry, 59078-970 Natal, RN, Brazil;5. Department of Inorganic Chemistry, Crystallography and Mineralogy, Faculty of Sciences, University of Malaga, Campus de Teatinos, 29071 Malaga, Spain;1. Área de Ingeniería Química, Universidad Autónoma Metropolitana, Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340 CDMX, Mexico;2. Universidad Autónoma Metropolitana-Azcapotzalco, Av. San Pablo 180, Col. Reynosa Tamaulipas, 02200 CDMX, Mexico |
| Abstract: | Here we show the crucial role of ultramicropores on the adsorbed H2 amount. By synthesizing Fe-BTCs via a perturbation assisted nanofusion synthesis strategy and by the control of textural porosity via Fe:BTC ratio, BET surface area (1312 m2/g), total pore volume (1.41 cm3/g), and H2 adsorption capacity (1.10 wt% at 7.6 bar and 298 K) were enhanced by 1.6, 3.1, and 2.6 times, respectively. The reported BET surface area, and the total pore volume are the highest of those reported for Fe-BTC, to date. The enhanced H2 adsorption capacity of Fe-BTC-3 is attributed to the ultramicropores present in its pore structure. Presence of ultramicropores maximizes van der Waals potential, and the adsorbed H2 amount increases. By the perturbation assisted nanofusion synthesis strategy and the control over textural porosity, an Fe-BTC that possesses a H2 adsorption capacity higher than those of reported MOFs with higher BET surface areas has been reported. |
| Keywords: | Metal-organic frameworks Fe-BTC Hierarchical pores Pore size distribution Ultramicropores MOF"} {"#name":"keyword" "$":{"id":"kwrd0045"} "$$":[{"#name":"text" "_":"Metal-organic framework NLDFT"} {"#name":"keyword" "$":{"id":"kwrd0055"} "$$":[{"#name":"text" "_":"non-localized density functional theory XRD"} {"#name":"keyword" "$":{"id":"kwrd0065"} "$$":[{"#name":"text" "_":"X-ray powder diffraction FTIR"} {"#name":"keyword" "$":{"id":"kwrd0075"} "$$":[{"#name":"text" "_":"Fourier-transform infrared spectroscopy SEM"} {"#name":"keyword" "$":{"id":"kwrd0085"} "$$":[{"#name":"text" "_":"scanning electron microscopy BET"} {"#name":"keyword" "$":{"id":"kwrd0095"} "$$":[{"#name":"text" "_":"Brunauer–Emmett–Teller BET TGA"} {"#name":"keyword" "$":{"id":"kwrd0105"} "$$":[{"#name":"text" "_":"thermogravimetric analysis Intelligent Gravimetric Analyzer"} {"#name":"keyword" "$":{"id":"kwrd0115"} "$$":[{"#name":"text" "_":"IGA BTC"} {"#name":"keyword" "$":{"id":"kwrd0125"} "$$":[{"#name":"text" "_":"benzene-1 3 5-tricarboxylic acid DMF"} {"#name":"keyword" "$":{"id":"kwrd0135"} "$$":[{"#name":"text" "_":"N N-dimethylformamide IUPAC"} {"#name":"keyword" "$":{"id":"kwrd0145"} "$$":[{"#name":"text" "_":"International Union of Pure and Applied Chemistry standard temperature and pressure"} {"#name":"keyword" "$":{"id":"kwrd0155"} "$$":[{"#name":"text" "_":"STP |
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