"Modified" Liquid⁻Liquid Displacement Porometry and Its Applications in Pd-Based Composite Membranes.
"Modified" Liquid⁻Liquid Displacement Porometry and Its Applications in Pd-Based Composite Membranes.
复制标题
– 改性 – 液体 – 液体置换孔隙测定法及其在钯基复合膜中的应用
DOI：
10.3390/membranes8020029
复制
发表时间：
2018-06-08
期刊：
影响因子：
4.2
通讯作者：
Xu H
中科院分区：
文献类型：
--
作者：
Zheng L;Li H;Yu H;Kang G;Xu T;Yu J;Li X;Xu H
For H2 separation by Pd-based composite membranes, the pore mouth size distribution of the porous support immediately affects the quality of the deposited layer, including continuity and defect/pinhole formation. However, there is a lack of convenient and effective methods for characterization of pore mouth size of porous supports as well as of defect distribution of dense Pd-based composite membranes. Here we introduce a novel method by modifying conventional liquid–liquid displacement porometry. When the pore tunnels are filled with Liquid B and the outer surface is occupied by Liquid A, the reopening of the pore mouth depends on the pressure of Liquid B and the interfacial tension at the position of the pore mouth, from which the pore mouth size can be determined according to the Young–Laplace equation. Our experimental tests using this method with model samples show promising results, which are well supported by those obtained using FESEM (fild emission scanning electron microscope), AFM (atomic force microscope), and conventional liquid–liquid displacement porometry. This novel method can provide useful information for not only surface coatings on porous substrates but also for modification of dense membrane defects; thus, broad utilizations of this technique can be expected in future study.
登录
查看更多内容
影响因子：
3.7
作者：
Gijsbertsen-Abrahamse, AJ;Boom, RM;van der Padt, A
通讯作者：
van der Padt, A
影响因子：
7.2
作者：
Jabbari, A.;Ghasemzadeh, K.;Basile, A.
通讯作者：
Basile, A.
影响因子：
9.5
作者：
Piatkiewicz, W;Rosinski, S;Judycki, W
通讯作者：
Judycki, W
影响因子：
4.9
作者：
Tong, JH;Su, LL;Suda, H
通讯作者：
Suda, H
影响因子：
9.5
作者：
Reingruber, H.;Zankel, A.;Poelt, P.
通讯作者：
Poelt, P.