More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid
A new hybrid proton exchange membrane (PEM) has been prepared from hydroxyl functionalized imidazolium ionic liquid (IL-OH), Nafion and nano-SiO2. The IL-OH, with a hydroxyl group that acts as both a proton acceptor and donor, forms strong hydrogen bonds with both Nafion and nano-SiO2, resulting in...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/33649/ |
| _version_ | 1848794673731076096 |
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| author | Li, Yan Shi, Yan Mehio, Nada Tan, Mingsheng Wang, Zhiyong Hu, Xiaohong Chen, George Z. Dai, Sheng Jin, Xianbo |
| author_facet | Li, Yan Shi, Yan Mehio, Nada Tan, Mingsheng Wang, Zhiyong Hu, Xiaohong Chen, George Z. Dai, Sheng Jin, Xianbo |
| author_sort | Li, Yan |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A new hybrid proton exchange membrane (PEM) has been prepared from hydroxyl functionalized imidazolium ionic liquid (IL-OH), Nafion and nano-SiO2. The IL-OH, with a hydroxyl group that acts as both a proton acceptor and donor, forms strong hydrogen bonds with both Nafion and nano-SiO2, resulting in an effective hydrogen bond network in the ternary membrane. Such an anhydrous hydrogen-bond network, which is unknown previously, endows the PEMs with higher proton conductivity, greater thermal stability and surprisingly a more robust mechanical performance than PEMs consisting of conventional ionic liquids. The resulting PEMs have a tensile strength that is more than twice as strong as recast Nafion and an anhydrous ionic conductivity of ∼55 mS cm−1 at temperatures above 160 °C, with a proton transfer number of ∼0.9. A laboratory assembled H2–O2 fuel cell employing this new PEM delivered a power density of 340 and 420 mW cm−2 at 160 and 180 °C, respectively. |
| first_indexed | 2025-11-14T19:19:56Z |
| format | Article |
| id | nottingham-33649 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:19:56Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-336492020-05-04T17:58:32Z https://eprints.nottingham.ac.uk/33649/ More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid Li, Yan Shi, Yan Mehio, Nada Tan, Mingsheng Wang, Zhiyong Hu, Xiaohong Chen, George Z. Dai, Sheng Jin, Xianbo A new hybrid proton exchange membrane (PEM) has been prepared from hydroxyl functionalized imidazolium ionic liquid (IL-OH), Nafion and nano-SiO2. The IL-OH, with a hydroxyl group that acts as both a proton acceptor and donor, forms strong hydrogen bonds with both Nafion and nano-SiO2, resulting in an effective hydrogen bond network in the ternary membrane. Such an anhydrous hydrogen-bond network, which is unknown previously, endows the PEMs with higher proton conductivity, greater thermal stability and surprisingly a more robust mechanical performance than PEMs consisting of conventional ionic liquids. The resulting PEMs have a tensile strength that is more than twice as strong as recast Nafion and an anhydrous ionic conductivity of ∼55 mS cm−1 at temperatures above 160 °C, with a proton transfer number of ∼0.9. A laboratory assembled H2–O2 fuel cell employing this new PEM delivered a power density of 340 and 420 mW cm−2 at 160 and 180 °C, respectively. Elsevier 2016-08-01 Article PeerReviewed Li, Yan, Shi, Yan, Mehio, Nada, Tan, Mingsheng, Wang, Zhiyong, Hu, Xiaohong, Chen, George Z., Dai, Sheng and Jin, Xianbo (2016) More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid. Applied Energy, 175 . pp. 451-458. ISSN 0306-2619 Proton exchange membranes; Hydroxyl ionic liquids; Hydrogen-bonds; Nafion; Intermediate-temperature fuel cells http://dx.doi.org/10.1016/j.apenergy.2016.03.075 doi:10.1016/j.apenergy.2016.03.075 doi:10.1016/j.apenergy.2016.03.075 |
| spellingShingle | Proton exchange membranes; Hydroxyl ionic liquids; Hydrogen-bonds; Nafion; Intermediate-temperature fuel cells Li, Yan Shi, Yan Mehio, Nada Tan, Mingsheng Wang, Zhiyong Hu, Xiaohong Chen, George Z. Dai, Sheng Jin, Xianbo More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid |
| title | More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid |
| title_full | More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid |
| title_fullStr | More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid |
| title_full_unstemmed | More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid |
| title_short | More sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of Nafion/nano-silica/hydroxyl ionic liquid |
| title_sort | more sustainable electricity generation in hot and dry fuel cells with a novel hybrid membrane of nafion/nano-silica/hydroxyl ionic liquid |
| topic | Proton exchange membranes; Hydroxyl ionic liquids; Hydrogen-bonds; Nafion; Intermediate-temperature fuel cells |
| url | https://eprints.nottingham.ac.uk/33649/ https://eprints.nottingham.ac.uk/33649/ https://eprints.nottingham.ac.uk/33649/ |