Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd Membranes
Although hydrogen sulfide (H2S) was always a negative factor leading to the reduction of hydrogen permeability of palladium (Pd) membranes, its proper application could result in a positive effect. In this study, pure Pd membranes were firstly reacted with H2S at 23–450 °C, and the...
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| Format: | Article |
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MDPI AG
2018-05-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/11/5/1127 |
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| author | Wei Feng Qingyuan Wang Xiaodong Zhu Qingquan Kong Jiejie Wu Peipei Tu |
| author_facet | Wei Feng Qingyuan Wang Xiaodong Zhu Qingquan Kong Jiejie Wu Peipei Tu |
| author_sort | Wei Feng |
| collection | DOAJ |
| description | Although hydrogen sulfide (H2S) was always a negative factor leading to the reduction of hydrogen permeability of palladium (Pd) membranes, its proper application could result in a positive effect. In this study, pure Pd membranes were firstly reacted with H2S at 23–450 °C, and then treated by redox reactions. Afterwards, the hydrogen permeability was tested under different reaction conditions using a hydrogen penetrant testing device. Moreover, both products and morphology changes occurred on the Pd membrane surface were analyzed using XRD, XPS and SEM. The results showed that H2S was dissociated to produce sulfides at 23 °C. With a rise of temperature, a regular change took place in the reaction products, morphology of the Pd membrane surface and hydrogen permeability. Adsorbed impurities such as sulfides and free carbon on the Pd membrane surface were removed by the redox treatment. The hydrogen permeability was improved by about 80% for the Pd membrane material subjected to the treatment method stated the above against the untreated one. |
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| id | doaj.art-f9fa6b8fed064686afb70b5dbf6e62d9 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T01:45:30Z |
| publishDate | 2018-05-01 |
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| series | Energies |
| spelling | doaj.art-f9fa6b8fed064686afb70b5dbf6e62d92022-12-22T02:19:35ZengMDPI AGEnergies1996-10732018-05-01115112710.3390/en11051127en11051127Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd MembranesWei Feng0Qingyuan Wang1Xiaodong Zhu2Qingquan Kong3Jiejie Wu4Peipei Tu5Advanced Research Institute, Chengdu University, Chengdu 610106, ChinaAdvanced Research Institute, Chengdu University, Chengdu 610106, ChinaAdvanced Research Institute, Chengdu University, Chengdu 610106, ChinaAdvanced Research Institute, Chengdu University, Chengdu 610106, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100083, ChinaAdvanced Research Institute, Chengdu University, Chengdu 610106, ChinaAlthough hydrogen sulfide (H2S) was always a negative factor leading to the reduction of hydrogen permeability of palladium (Pd) membranes, its proper application could result in a positive effect. In this study, pure Pd membranes were firstly reacted with H2S at 23–450 °C, and then treated by redox reactions. Afterwards, the hydrogen permeability was tested under different reaction conditions using a hydrogen penetrant testing device. Moreover, both products and morphology changes occurred on the Pd membrane surface were analyzed using XRD, XPS and SEM. The results showed that H2S was dissociated to produce sulfides at 23 °C. With a rise of temperature, a regular change took place in the reaction products, morphology of the Pd membrane surface and hydrogen permeability. Adsorbed impurities such as sulfides and free carbon on the Pd membrane surface were removed by the redox treatment. The hydrogen permeability was improved by about 80% for the Pd membrane material subjected to the treatment method stated the above against the untreated one.http://www.mdpi.com/1996-1073/11/5/1127Pd membranehydrogenpermeabilitysurfaceredoxreaction |
| spellingShingle | Wei Feng Qingyuan Wang Xiaodong Zhu Qingquan Kong Jiejie Wu Peipei Tu Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd Membranes Energies Pd membrane hydrogen permeability surface redoxreaction |
| title | Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd Membranes |
| title_full | Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd Membranes |
| title_fullStr | Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd Membranes |
| title_full_unstemmed | Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd Membranes |
| title_short | Influence of Hydrogen Sulfide and Redox Reactions on the Surface Properties and Hydrogen Permeability of Pd Membranes |
| title_sort | influence of hydrogen sulfide and redox reactions on the surface properties and hydrogen permeability of pd membranes |
| topic | Pd membrane hydrogen permeability surface redoxreaction |
| url | http://www.mdpi.com/1996-1073/11/5/1127 |
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