Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas Adsorption
Among microporous storage materials copper benzene-1,3,5-tricarboxylate (CuBTC MOF, Cu<sub>3</sub>(BTC)<sub>2</sub> or HKUST-1) holds the greatest potential for clean energy gases. However, its usefulness is challenged by water vapor, either in the gas to be stored or in the...
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MDPI AG
2020-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/6/1182 |
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| author | Andrea Domán Szilvia Klébert János Madarász György Sáfrán Ying Wang Krisztina László |
| author_facet | Andrea Domán Szilvia Klébert János Madarász György Sáfrán Ying Wang Krisztina László |
| author_sort | Andrea Domán |
| collection | DOAJ |
| description | Among microporous storage materials copper benzene-1,3,5-tricarboxylate (CuBTC MOF, Cu<sub>3</sub>(BTC)<sub>2</sub> or HKUST-1) holds the greatest potential for clean energy gases. However, its usefulness is challenged by water vapor, either in the gas to be stored or in the environment. To determine the protection potential of graphene oxide (GO) HKUST-1@GO composites containing 0–25% GO were synthesized and studied. In the highest concentration, GO was found to strongly affect HKUST-1 crystal growth in solvothermal conditions by increasing the pH of the reaction mixture. Otherwise, the GO content had practically no influence on the H<sub>2</sub>, CH<sub>4</sub> and CO<sub>2</sub> storage capacities, which were very similar to those from the findings of other groups. The water vapor resistance of a selected composite was compared to that of HKUST-1. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric (TG/DTG) and N<sub>2</sub> adsorption techniques were used to monitor the changes in the crystal and pore structure. It was found that GO saves the copper–carboxyl coordination bonds by sacrificing the ester groups, formed during the solvothermal synthesis, between ethanol and the carboxyl groups on the GO sheets. |
| first_indexed | 2024-03-10T19:06:34Z |
| format | Article |
| id | doaj.art-e233a6da9c51431288f5ae20806d0684 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T19:06:34Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-e233a6da9c51431288f5ae20806d06842023-11-20T04:08:11ZengMDPI AGNanomaterials2079-49912020-06-01106118210.3390/nano10061182Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas AdsorptionAndrea Domán0Szilvia Klébert1János Madarász2György Sáfrán3Ying Wang4Krisztina László5Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Budafoki út 8., H-1521 Budapest, HungaryInstitute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Eötvös Loránd Research Network, Magyar tudósok körútja 2., H-1117 Budapest, HungaryDepartment of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt. Gellért tér 4., H-1521 Budapest, HungaryResearch Institute for Technical Physics and Materials Science, Eötvös Loránd Research Network, Konkoly Thege M. út 29-33., H-1121 Budapest, HungaryCollege of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, ChinaDepartment of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Budafoki út 8., H-1521 Budapest, HungaryAmong microporous storage materials copper benzene-1,3,5-tricarboxylate (CuBTC MOF, Cu<sub>3</sub>(BTC)<sub>2</sub> or HKUST-1) holds the greatest potential for clean energy gases. However, its usefulness is challenged by water vapor, either in the gas to be stored or in the environment. To determine the protection potential of graphene oxide (GO) HKUST-1@GO composites containing 0–25% GO were synthesized and studied. In the highest concentration, GO was found to strongly affect HKUST-1 crystal growth in solvothermal conditions by increasing the pH of the reaction mixture. Otherwise, the GO content had practically no influence on the H<sub>2</sub>, CH<sub>4</sub> and CO<sub>2</sub> storage capacities, which were very similar to those from the findings of other groups. The water vapor resistance of a selected composite was compared to that of HKUST-1. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric (TG/DTG) and N<sub>2</sub> adsorption techniques were used to monitor the changes in the crystal and pore structure. It was found that GO saves the copper–carboxyl coordination bonds by sacrificing the ester groups, formed during the solvothermal synthesis, between ethanol and the carboxyl groups on the GO sheets.https://www.mdpi.com/2079-4991/10/6/1182MOFHKUST-1GOcompositeadsorption gas storagewater vapor |
| spellingShingle | Andrea Domán Szilvia Klébert János Madarász György Sáfrán Ying Wang Krisztina László Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas Adsorption Nanomaterials MOF HKUST-1 GO composite adsorption gas storage water vapor |
| title | Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas Adsorption |
| title_full | Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas Adsorption |
| title_fullStr | Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas Adsorption |
| title_full_unstemmed | Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas Adsorption |
| title_short | Graphene Oxide Protected Copper Benzene-1,3,5-Tricarboxylate for Clean Energy Gas Adsorption |
| title_sort | graphene oxide protected copper benzene 1 3 5 tricarboxylate for clean energy gas adsorption |
| topic | MOF HKUST-1 GO composite adsorption gas storage water vapor |
| url | https://www.mdpi.com/2079-4991/10/6/1182 |
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