期刊
GREEN CHEMICAL ENGINEERING
卷 2, 期 1, 页码 96-103出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.gce.2020.11.003
关键词
Hydrogen separation; Asymmetric membranes; Porous support layers; Laser grooving; Water splitting
资金
- National Natural Science Foundation of China [22008231, 21776267]
- grants of Dalian National Laboratory for Clean Energy (DNL) [DNL180203]
- LiaoNing Revitalization Talents Program [XLYC1801004]
- Youth Innovation Promotion Association of the Chinese Academy of Sciences [Y201829]
Optimizing the structure of the porous support layer can improve the hydrogen separation performance of oxygen transport membranes, showing potential for practical applications.
Hydrogen separation through oxygen transport membranes (OTMs) has attracted much attention. Asymmetric membranes with thin dense layers provide low bulk diffusion resistances and high overall hydrogen separation performances. However, the resistance in the porous support layer (PSL) limits the overall separation performance significantly. Engineering the structure of the PSL is an appropriate way to enable fast gas transport and increase the separation performance. There is no relevant research on studying the influence of the PSL on hydrogen separation performance so far. Herein, we prepared Ce0.85Sm0.15O1.925 - Sm0.6Sr0.4Cr0.3Fe0.7O3-delta (SDC-SSCF) asymmetric membranes with straight grooves in PSL by tape-casting and laser grooving. A similar to 30% improvement in the hydrogen separation rate was achieved by grooving in the PSLs. It indicates that the grooves may reduce the concentration polarization resistance in PSL for the hydrogen separation process. This work provides a straight evidence on optimizing the structures of PSL for improving the hydrogen separation performance of the membrane reactors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据