Cation-selective layered silicon oxide membranes for power generation
Sungsoon Kim,
Minwoo Lee,
Sangjin Choi,
Jongbum Won,
Taehoon Kim,
Taeyoung Kim,
Jihong Bae,
Wooyoung Shim
Affiliations
Sungsoon Kim
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Minwoo Lee
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Sangjin Choi
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Jongbum Won
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Taehoon Kim
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Taeyoung Kim
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Jihong Bae
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Department of Materials Science and Engineering, Yonsei University , Seoul 120-749, Republic of Korea; Center for Multi-Dimensional Materials, Yonsei University , Seoul 03722, Republic of Korea
Inorganic two-dimensional membranes offer a new approach to modulating mass transport at the nanoscale. These membranes, which can harness the van der Waals gap as a nanochannel and address persistent challenges in organic membranes, are limited to a few material libraries, such as graphene, graphene oxide, molybdenum disulfide, and boron nitride. Here we report for the first time the development of cation-selective layered silicon oxide membranes, in which the nanochannels, specifically the van der Waals gap, can allow cation diffusion flux to generate an electromotive force for a long time. Considering the abundance and well-known properties of silicon oxide, this inorganic membrane can provide a promising route for membrane separation in a variety of applications.
