Surface activation inspires high performance of ultra-thin Pd membrane for hydrogen separation
文献类型：期刊论文
| 作者 | Zhu, Bo ; Tang, Chun H. ; Xu, Heng Y. ; Su, Dang S. ; Zhang, Jian ; Li, Hui |
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2017-03-15 |
| 卷号 | 526页码:138-146 |
| 关键词 | H-2 separation Pd-based membranes Microstructure and composition In-situ characterizations Gas-thermal treatment |
| ISSN号 | 0376-7388 |
| 通讯作者 | Su, DS ; Li, H (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China. ; Su, DS (reprint author), Max Planck Gesell, Fritz Haber Inst, Dept Inorgan Chem, Faradayweg 4-6, D-14195 Berlin, Germany. ; Su, DS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 1100016, Peoples R China. ; Zhang, J (reprint author), Chinese Acad Sci, Ningbo Inst Ind Technol, Ningbo 315201, Zhejiang, Peoples R China. |
| 中文摘要 | Pd-based membranes play a critical role in the field of hydrogen purification and small-scale hydrogen generation. The microstructure and composition of ultra-thin Pd membranes immediately determines their performance and stability, which are however complex and elusive. We applied for the first time a novel technique of environmental scanning electron microscopy (ESEM) together with EDS analysis for in-situ investigation of microstructure and composition of Pd composite membranes under gas-thermal treatment. It enables step by step analysis of the evolution process and offers more meticulous details compared to ex-situ technologies through analysis at exactly the same location of membrane samples. Here we observed the elimination of Pd crystallites as well as the homogenization/diffusion along the whole membrane surface following high T treatment under inert gas or H-2 atmosphere. Gradual evolution of microhillocks on Pd membrane surface was resulted due to alpha-beta phase transition or exposure to either O-2 or H2O, which can be effectively "smoothened" out during H-2 treatment. The exposure to steam exhibited a mild oxidation effect without pinhole formations, which appears a more appropriate surface cleaning process compared to air/oxygen treatment. A significant interlayer diffusion was revealed between Pd layer and ZrO2/alumina substrate in Hz/O-2/H2O atmosphere. |
| 学科主题 | Engineering, Chemical ; Polymer Science |
| 收录类别 | SCI |
| 资助信息 | 100-Talent Programme of Chinese Academy of Sciences (CAS, China); National Natural Science Foundation of China [51501177, 21306183] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78234]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Zhu, Bo,Tang, Chun H.,Xu, Heng Y.,et al. Surface activation inspires high performance of ultra-thin Pd membrane for hydrogen separation[J]. JOURNAL OF MEMBRANE SCIENCE,2017,526:138-146. |
| APA | Zhu, Bo,Tang, Chun H.,Xu, Heng Y.,Su, Dang S.,Zhang, Jian,&Li, Hui.(2017).Surface activation inspires high performance of ultra-thin Pd membrane for hydrogen separation.JOURNAL OF MEMBRANE SCIENCE,526,138-146. |
| MLA | Zhu, Bo,et al."Surface activation inspires high performance of ultra-thin Pd membrane for hydrogen separation".JOURNAL OF MEMBRANE SCIENCE 526(2017):138-146. |
入库方式： OAI收割
来源：金属研究所
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