Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66)
Several zirconium-based metal–organic frameworks (Zr-MOFs) have been synthesized using ammonium hydroxide as an additive in the synthesis process. Their physicochemical properties have been characterized by N2 adsorption/desorption, XRD, SEM, FTIR, and TGA, and their application in CO2 adsorption wa...
| Main Authors: | , , |
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| Format: | Journal Article |
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RSC Publishing
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/17387 |
| _version_ | 1848749453117227008 |
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| author | Abid, Hussein Ang, Ming Wang, Shaobin |
| author_facet | Abid, Hussein Ang, Ming Wang, Shaobin |
| author_sort | Abid, Hussein |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Several zirconium-based metal–organic frameworks (Zr-MOFs) have been synthesized using ammonium hydroxide as an additive in the synthesis process. Their physicochemical properties have been characterized by N2 adsorption/desorption, XRD, SEM, FTIR, and TGA, and their application in CO2 adsorption was evaluated. It was found that addition of ammonium hydroxide produced some effects on the structure and adsorption behavior of Zr-MOFs. The pore size and pore volume of Zr-MOFs were enhanced with the additive, however, specific surface area of Zr-MOFs was reduced. Using an ammonium hydroxide additive, the crystal size of Zr-MOF was reduced with increasing amount of the additive. All the samples presented strong thermal stability. Adsorption tests showed that capacity of CO2 adsorption on the Zr-MOFs under standard conditions was reduced due to decreased micropore fractions. However, modified Zr-MOFs had significantly lower adsorption heat. The adsorption capacity of carbon dioxide was increased at high pressure, reaching 8.63 mmol g−1 at 987 kPa for Zr-MOF-NH4-2. |
| first_indexed | 2025-11-14T07:21:10Z |
| format | Journal Article |
| id | curtin-20.500.11937-17387 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:21:10Z |
| publishDate | 2012 |
| publisher | RSC Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-173872017-09-13T15:43:06Z Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66) Abid, Hussein Ang, Ming Wang, Shaobin Several zirconium-based metal–organic frameworks (Zr-MOFs) have been synthesized using ammonium hydroxide as an additive in the synthesis process. Their physicochemical properties have been characterized by N2 adsorption/desorption, XRD, SEM, FTIR, and TGA, and their application in CO2 adsorption was evaluated. It was found that addition of ammonium hydroxide produced some effects on the structure and adsorption behavior of Zr-MOFs. The pore size and pore volume of Zr-MOFs were enhanced with the additive, however, specific surface area of Zr-MOFs was reduced. Using an ammonium hydroxide additive, the crystal size of Zr-MOF was reduced with increasing amount of the additive. All the samples presented strong thermal stability. Adsorption tests showed that capacity of CO2 adsorption on the Zr-MOFs under standard conditions was reduced due to decreased micropore fractions. However, modified Zr-MOFs had significantly lower adsorption heat. The adsorption capacity of carbon dioxide was increased at high pressure, reaching 8.63 mmol g−1 at 987 kPa for Zr-MOF-NH4-2. 2012 Journal Article http://hdl.handle.net/20.500.11937/17387 10.1039/c2nr30244f RSC Publishing restricted |
| spellingShingle | Abid, Hussein Ang, Ming Wang, Shaobin Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66) |
| title | Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66) |
| title_full | Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66) |
| title_fullStr | Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66) |
| title_full_unstemmed | Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66) |
| title_short | Effects of ammonium hydroxide on the structure and gas adsorption of nanosized Zr-MOFs (UiO-66) |
| title_sort | effects of ammonium hydroxide on the structure and gas adsorption of nanosized zr-mofs (uio-66) |
| url | http://hdl.handle.net/20.500.11937/17387 |