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

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number014010
JournalJPhys Energy
Issue number1
Publication statusPublished - 2023 Jan 1

Bibliographical note

Funding Information:
This research was supported by Creative Materials Discovery Program through the National Research Foundation (NRF) of Korea funded by Ministry of Science and ICT (2018M3D1A1058793). This work was also supported by the Technology Innovation Program (20013621, Center for Super Critical Material Industrial Technology) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea).

Publisher Copyright:
© 2022 The Author(s). Published by IOP Publishing Ltd.

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Energy(all)
  • Materials Chemistry


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