{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T17:54:04Z","timestamp":1788976444952,"version":"build-2803163510"},"reference-count":26,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2025,11,17]],"date-time":"2025-11-17T00:00:00Z","timestamp":1763337600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"published-print":{"date-parts":[[2026,1,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Efficient hydrogen purification from methanol steam reforming (MSR) faces challenges due to H\n                    <jats:sub>2<\/jats:sub>\n                    \/CO\n                    <jats:sub>2<\/jats:sub>\n                    kinetic diameter overlap and energy\u2010intensive traditional methods. Here, we report a biomimetic hourglass\u2010shaped covalent organic framework (COF) membrane via sequential spray coating of opposite charged COF nanosheets, mimicking aquaporin\u2010like hierarchical channels. The sandwich structure (large\u2010pore sulfonated COF outer layers, narrow\u2010pore guanidinium COF middle layer) enables dual\u2010functionality: outer TpBD\u2010SO\n                    <jats:sub>3<\/jats:sub>\n                    H layers perform as the diffusion chamber (2.5\u00a0nm pores) and protective layer, whereas the middle TpTGCl layer (0.8\u00a0nm pores) traps CO\n                    <jats:sub>2<\/jats:sub>\n                    via strong electrostatic interactions. The membrane achieves a H\n                    <jats:sub>2<\/jats:sub>\n                    permeance of 2833 GPU and H\n                    <jats:sub>2<\/jats:sub>\n                    \/CO\n                    <jats:sub>2<\/jats:sub>\n                    selectivity of 21, surpassing the 2008 Robeson upper bound. Spray coating enables scalable fabrication of 5000 cm\n                    <jats:sup>2<\/jats:sup>\n                    defect\u2010free membranes on porous substrate with high mechanical stability and chemical resistance (mass loss\u00a0&lt;\u00a00.3% in 150\u00a0\u00b0C methanol). Separation process simulations show a two\u2010stage system boosts H\n                    <jats:sub>2<\/jats:sub>\n                    purity to 96.7% with 94.3% recovery, outperforming pressure swing adsorption (PSA) in efficiency and energy consumption. This modular design offers a sustainable, scalable solution for industrial hydrogen purification and gas separation.\n                  <\/jats:p>","DOI":"10.1002\/anie.202512716","type":"journal-article","created":{"date-parts":[[2025,11,17]],"date-time":"2025-11-17T09:09:40Z","timestamp":1763370580000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Large\u2010Area COF Membrane with Hourglass\u2010Shaped Nanochannels for Enhanced Hydrogen Separation"],"prefix":"10.1002","volume":"65","author":[{"given":"Xiaohe","family":"Tian","sequence":"first","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keming","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangyu","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haishan","family":"Huan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zheyu","family":"Huang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chengyu","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yueyangchao","family":"Yu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianhe","family":"Gu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1790-7149","authenticated-orcid":false,"given":"Shaofei","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemo and Biosensing College of Chemistry and Chemical Engineering Hunan University  Changsha 410082 China"},{"name":"Greater Bay Area Institute for Innovation Hunan University  Guangzhou 511340 China"},{"name":"Research Institute of Hunan University in Chongqing  Chongqing 404100 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,11,17]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1039\/D4CS00551A"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcatb.2024.124710"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2025.159660"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijhydene.2021.07.097"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijhydene.2021.11.041"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pmatsci.2024.101324"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3CS00285C"},{"key":"e_1_2_7_8_1","first-page":"2056","volume":"53","author":"Daumke O.","year":"2025","journal-title":"Nat. Rev. Mol. Cell Biol."},{"key":"e_1_2_7_9_1","first-page":"2897","volume":"514","author":"Zhang Y.","year":"2025","journal-title":"Chem. Eng. J."},{"key":"e_1_2_7_10_1","volume":"35","author":"Liu L. Z.","year":"2023","journal-title":"Adv. Mater."},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202420477"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201708048"},{"key":"e_1_2_7_13_1","volume":"35","author":"Liang C.","year":"2025","journal-title":"Adv. Funct. 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