{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,31]],"date-time":"2026-08-31T05:25:06Z","timestamp":1788153906368,"version":"build-2803163510"},"reference-count":52,"publisher":"Wiley","issue":"32","license":[{"start":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T00:00:00Z","timestamp":1776729600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T00:00:00Z","timestamp":1776729600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22171135"],"award-info":[{"award-number":["22171135"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22471235"],"award-info":[{"award-number":["22471235"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004608","name":"Natural Science Foundation of Jiangsu Province","doi-asserted-by":"publisher","award":["BK20231269"],"award-info":[{"award-number":["BK20231269"]}],"id":[{"id":"10.13039\/501100004608","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    The adsorptive separation of acetylene (C\n                    <jats:sub>2<\/jats:sub>\n                    H\n                    <jats:sub>2<\/jats:sub>\n                    ) from carbon dioxide (CO\n                    <jats:sub>2<\/jats:sub>\n                    ) at elevated temperatures presents a significant industrial challenge, yet offers substantial potential for energy savings. Here, we report a tunable\n                    <jats:italic>\u03c0<\/jats:italic>\n                    \u2010basic platform within a family of porous coordination polymers (PCPs), derived from\n                    <jats:bold>NTU\u201065<\/jats:bold>\n                    , a soft framework that exhibits C\n                    <jats:sub>2<\/jats:sub>\n                    H\n                    <jats:sub>2<\/jats:sub>\n                    \u2010specific gate\u2010opening behavior. Through systematic ligand functionalization with plana,\n                    <jats:italic>\u03c0<\/jats:italic>\n                    \u2010conjugated units, we precisely engineered the framework's pore chemistry. The optimal material,\n                    <jats:bold>NTU\u201065\u2010th<\/jats:bold>\n                    , confines C\n                    <jats:sub>2<\/jats:sub>\n                    H\n                    <jats:sub>2<\/jats:sub>\n                    via a dual chelation mode: its two carbon atoms engage with densely packed\n                    <jats:italic>\u03c0<\/jats:italic>\n                    systems, while its two hydrogen atoms interact with electronegative anions, generating a selective trapping effect, not observed for CO\n                    <jats:sub>2<\/jats:sub>\n                    . This mechanism, verified by modeling and In situ spectroscopy, creates a significant difference in binding energies. As a result,\n                    <jats:bold>NTU\u201065\u2010th<\/jats:bold>\n                    achieves both high C\n                    <jats:sub>2<\/jats:sub>\n                    H\n                    <jats:sub>2<\/jats:sub>\n                    uptake and promising C\n                    <jats:sub>2<\/jats:sub>\n                    H\n                    <jats:sub>2<\/jats:sub>\n                    \/CO\n                    <jats:sub>2<\/jats:sub>\n                    separation at 353\u00a0K, along with facile regeneration. This work demonstrates that precise pore chemistry modulation can overcome the trade\u2010off between affinity and selectivity at elevated temperature, offering a new route for advancing energy\u2010efficient separation materials.\n                  <\/jats:p>","DOI":"10.1002\/smll.73471","type":"journal-article","created":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T08:22:42Z","timestamp":1776759762000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Tunable\n                    <i>\u03c0<\/i>\n                    \u2010Basic Platforms in Porous Crystals for Enhanced C\n                    <sub>2<\/sub>\n                    H\n                    <sub>2<\/sub>\n                    \/CO\n                    <sub>2<\/sub>\n                    Separation at Elevated Temperature"],"prefix":"10.1002","volume":"22","author":[{"given":"Muyu","family":"Zhang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Materials\u2010Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University  Nanjing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lin","family":"Yin","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemistry and Utilization of Carbon\u2010Based Energy Resources College of Chemistry Xinjiang University  Urumqi China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Surya","family":"Abdumaimaiti","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemistry and Utilization of Carbon\u2010Based Energy Resources College of Chemistry Xinjiang University  Urumqi China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kui","family":"Tan","sequence":"additional","affiliation":[{"name":"Department of Chemistry University of North Texas  Denton Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1244-3522","authenticated-orcid":false,"given":"Ling","family":"Huang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemistry and Utilization of Carbon\u2010Based Energy Resources College of Chemistry Xinjiang University  Urumqi China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8218-1487","authenticated-orcid":false,"given":"Jingui","family":"Duan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Materials\u2010Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University  Nanjing China"},{"name":"State Key Laboratory of Chemistry and Utilization of Carbon\u2010Based Energy Resources College of Chemistry Xinjiang University  Urumqi China"},{"name":"Nanjing Tech University Suzhou Future Membrane Technology Innovation Center  Suzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,21]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1039\/C7CS00153C"},{"key":"e_1_2_8_3_1","doi-asserted-by":"crossref","unstructured":"H.HopfandB.Witulsk \u201cChapter 2\u2010 Functionalized Acetylenes in Organic Synthesis \u2010 The Case of the 1\u2010Cyano\u2010 and the 1\u2010Halogenoacetylenes.\u201d inModern Acetylene Chemistry. First Ed. edited by P. J. Stang and F. Diederich Weinheim: 1995 VCH Verlagsgesellschaft mbH.","DOI":"10.1002\/9783527615278.ch02"},{"key":"e_1_2_8_4_1","unstructured":"K.WeissermelandH.\u2010J.Arpe \u201cChapter 8\u2010 Acetylene.\u201d inIndustrial organic chemistry. Fourth Ed. edited by K. Weissermel and H.\u2010J. Arpe Weinheim: 2003 WILEY\u2010VCH Verlag GmbH & Co. KGaA."},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.3390\/en7053484"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202425638"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11426\u2010022\u20101497\u20106"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1039\/D0QM00186D"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202014680"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aar6833"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586\u2010021\u201003627\u20108"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/s44286\u2010023\u201000004\u20102"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41563\u2010022\u201001237\u2010x"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.1c04946"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201806445"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aam7232"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.2c11365"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-022-04763-5"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aam7851"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41563\u2010019\u20100597\u20108"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41557\u2010022\u201000928\u2010x"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1230444"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature03852"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010021\u201027929\u20107"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202013965"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202100584"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202210415"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.3c01784"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202211523"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.1c10620"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202417183"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202506055"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-020-20489-2"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.aaf2458"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3SC00877K"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1039\/D5SC01755F"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3SC05489F"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.5b10491"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.7b03850"},{"key":"e_1_2_8_40_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.8b07563"},{"key":"e_1_2_8_41_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010025\u201065057\u20108"},{"key":"e_1_2_8_42_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201904160"},{"key":"e_1_2_8_43_1","doi-asserted-by":"publisher","DOI":"10.1039\/b313997m"},{"key":"e_1_2_8_44_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.3c10277"},{"key":"e_1_2_8_45_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.3c00515"},{"key":"e_1_2_8_46_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.7b05702"},{"key":"e_1_2_8_47_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202316792"},{"key":"e_1_2_8_48_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202011802"},{"key":"e_1_2_8_49_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202403421"},{"key":"e_1_2_8_50_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201908275"},{"key":"e_1_2_8_51_1","doi-asserted-by":"publisher","DOI":"10.1016\/0584\u20108539(69)80088\u20107"},{"key":"e_1_2_8_52_1","doi-asserted-by":"publisher","DOI":"10.1021\/j100199a011"},{"key":"e_1_2_8_53_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp206655y"}],"container-title":["Small"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.73471","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/smll.73471","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.73471","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,15]],"date-time":"2026-06-15T10:53:03Z","timestamp":1781520783000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/smll.73471"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,21]]},"references-count":52,"journal-issue":{"issue":"32","published-print":{"date-parts":[[2026,6]]}},"alternative-id":["10.1002\/smll.73471"],"URL":"https:\/\/doi.org\/10.1002\/smll.73471","archive":["Portico"],"relation":{},"ISSN":["1613-6810","1613-6829"],"issn-type":[{"value":"1613-6810","type":"print"},{"value":"1613-6829","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,21]]},"assertion":[{"value":"2026-03-18","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-04-13","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-04-21","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e73471"}}