2026-05-23T23:53:07Z https://archive.materialscloud.org/oai2d

oai:materialscloud.org:c01nz-npe23 2026-04-30T10:10:58Z openaire_data community-mcarchive

Guo, Yanan Jin, Wanqin Matsuyama, Hideto Guan, Kecheng Guo, Yuanyuan Dai, Liheng Zhang, Aiwen Li, Zhan Deng, Erda Nakagawa, Keizo Guo, Yanan Liu, Gongping Yoshioka, Tomohisa Jin, Wanqin Matsuyama, Hideto 2026-04-30 <p><span lang="EN-US">Solvent reverse osmosis is a pressure-driven</span><span lang="EN-US">, liquid-phase</span><span lang="EN-US"> process for separating solvent mixtures, offering </span><span lang="EN-US">a potential low-energy</span><span lang="EN-US"> alternative to thermal operations. Graphene oxide (GO) laminates provide tunable nanochannels to </span><span lang="EN-US">probe confined </span><span lang="EN-US">solvent transport, yet solvent–solvent separations remain underexplored due to solvation-induced structural instabilities and the small </span><span lang="EN-US">molecular sizes</span><span lang="EN-US">. Here we construct</span><span lang="EN-US"> solvent-stable,</span><span lang="EN-US"> supported GO nanochannel membranes </span><span lang="EN-US">that preserves integrity under pressurized solvents,</span><span lang="EN-US"> and tune interlayer confinement and surface polarity via controlled chemical reduction. Across 51 solvent systems and 5 distinct nanochannels, we demonstrate that separation is governed by coupled nanoconfinement and solvent affinity, where selective interfacial association can surpass simple size-exclusion expectations. Maximum permselectivity arises from balancing channel size with retained polarity, indicating that channel shrinking alone does not optimize performance. These findings identify channel surface chemistry as a key design factor for polarity-rich solvent systems and provide a framework for rationally tailoring nanochannels for complex solvent separations.</span></p> application/zip text/plain https://doi.org/10.24435/materialscloud:q6-76 oai:materialscloud.org:c01nz-npe23 mcid:2026.93 eng Materials Cloud https://archive.materialscloud.org/communities/mcarchive https://doi.org/10.24435/materialscloud:nt-34 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode reverse osmosis graphene solvent–solvent separation Solvent reverse osmosis beyond size exclusion in 2D nanochannel membranes info:eu-repo/semantics/other