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. 2023 Sep 21;22(11):1387–1393. doi: 10.1038/s41563-023-01669-z

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — a, Schematic of a 2DZIF film supported on NG reinforced with PTMSP. b, H₂, CO₂, N₂ and CH₄ permeances of the support film (PTMSP-reinforced NG) and the supported 2DZIF film. The error bar is the standard deviation from three samples and the centre of each error bar represents the average data from three samples (Supplementary Table 7). c, 2DZIF membrane separation performance for an equimolar H₂/N₂ mixed feed. d, Comparison of the H₂/N₂ separation performance of 2DZIF membranes with the state of the art (Supplementary Table 8). GO, CMP, HOF and BNG refer to graphene oxide, conjugated microporous polymers, hydrogen-bonded organic frameworks, and boron nitride and graphene nanosheet, respectively.