Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of pd composite membranes | |
Zheng, Lei1,2; Li, Hui1; Xu, Tianying1; Bao, Feng1; Xu, Hengyong1 | |
刊名 | International journal of hydrogen energy |
2016-11-02 | |
卷号 | 41期号:41页码:18522-18532 |
关键词 | Palladium composite membranes Defect distribution analysis Guidance for the selection of particle sizes Strong adhesion Durability |
ISSN号 | 0360-3199 |
通讯作者 | Li, hui(hui.li@dicp.ac.cn) |
英文摘要 | Pd composite membranes show great potential in several important fields, such as high purity h-2 separation and production, due to unique permeability to hydrogen and its isotopes. however, the significant defect formation on palladium membranes and following decline in h-2 selectivity resulted from either preparation process or thermal/chemical stability issues exist as a great challenge for their commercial applications. the currently existing techniques for defect repair of pd composite membranes show either high complexity or limited effect thus limiting their practical applications. in this study, we presented a novel approach, i.e., strongly adhesive and high temperature resistant silicate gel (htrsg)/ceramic particles, in combination with home-developed "modified" liquid liquid displacement porometry (mlldp) for defect size distribution analysis, where the latter can provide important guidance for the selection of appropriate particles sizes. the experimental results with thin pd membranes indicated significant improvement in h-2 permselectivity without decreasing h2 permeance after defect repair treatment. moreover, silicate gel exhibits great durability under high temperature conditions. this approach features high simplicity, effectiveness and low cost, and is especially suitable for on-site repair of spent membranes in future applications. in addition, it is universal for defect repair of other inorganic membranes, and can also be used for the sealing of membrane modules. (c) 2016 hydrogen energy publications llc. published by elsevier ltd. all rights reserved. |
WOS关键词 | PORE-SIZE ; MICROPOROUS MEMBRANES ; HYDROGEN SEPARATION ; THIN ; DISTRIBUTIONS ; POROSIMETRY ; SURFACE ; TUBE ; FLUX ; AG |
WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
WOS类目 | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000385598300022 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2374941 |
专题 | 中国科学院大学 |
通讯作者 | Li, Hui |
作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Lei,Li, Hui,Xu, Tianying,et al. Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of pd composite membranes[J]. International journal of hydrogen energy,2016,41(41):18522-18532. |
APA | Zheng, Lei,Li, Hui,Xu, Tianying,Bao, Feng,&Xu, Hengyong.(2016).Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of pd composite membranes.International journal of hydrogen energy,41(41),18522-18532. |
MLA | Zheng, Lei,et al."Defect size analysis approach combined with silicate gel/ceramic particles for defect repair of pd composite membranes".International journal of hydrogen energy 41.41(2016):18522-18532. |
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