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Rapid Commun."],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Selective carbon dioxide (CO\u2082)\u00a0capture from industrial processes is vital for reducing emissions associated with fossil fuel combustion. Achieving both high CO\u2082 adsorption capacity and excellent CO\u2082\/N\u2082 selectivity, however, remains a significant challenge. In this study, a novel strategy is introduced that integrates porosity engineering using various cross\u2010linkers\u2014dimethoxymethane (F),\n                    <jats:italic>p<\/jats:italic>\n                    \u2010dichloroxylene (D), and dibromomethane (B)\u2014with post\u2010synthetic modifications to incorporate nitro (\u2500NO\u2082) and amino (\u2500NH\u2082) functional groups into the polymer matrix. Nitration of hyper\u2010cross\u2010linked polymer based on dimethoxymethane (HCP\u2010F) yields HCP\u2010F\u2010NO\u2082, which, upon reduction, produces the amine\u2010functionalized framework HCP\u2010F\u2010NH\u2082. Both HCP\u2010F\u2010NO\u2082 and HCP\u2010F\u2010NH\u2082 demonstrate relatively high CO\u2082 uptake. Despite its lower surface area (784 m\n                    <jats:sup>2<\/jats:sup>\n                    g\u207b\u00b9) compared to HCP\u2010F\u2010NO\u2082 (1066 m\n                    <jats:sup>2<\/jats:sup>\n                    g\u207b\u00b9), HCP\u2010F\u2010NH\u2082 exhibits superior CO\u2082\/N\u2082 selectivity of 100, compared to 70 for HCP\u2010F\u2010NO\u2082. Furthermore, ideal adsorbed solution theory\u00a0(IAST) selectivity calculations at 298 K and 1\u00a0bar for 15:85 CO\n                    <jats:sub>2<\/jats:sub>\n                    \/N\n                    <jats:sub>2<\/jats:sub>\n                    confirm enhanced CO\n                    <jats:sub>2<\/jats:sub>\n                    \/N\n                    <jats:sub>2<\/jats:sub>\n                    selectivity after post\u2010synthetic modification, with HCP\u2010F\u2010NH\n                    <jats:sub>2<\/jats:sub>\n                    reaching the highest value (64), breakthrough experiments at 298\u00a0K with 3\u00a0mL min\n                    <jats:sup>\u22121<\/jats:sup>\n                    flow rate validate increased CO\n                    <jats:sub>2<\/jats:sub>\n                    retention, while regeneration tests confirm structural stability and recyclability, reinforcing the potential of functionalized HCPs for CO\n                    <jats:sub>2<\/jats:sub>\n                    capture applications.\n                  <\/jats:p>","DOI":"10.1002\/marc.202500020","type":"journal-article","created":{"date-parts":[[2025,4,7]],"date-time":"2025-04-07T15:51:35Z","timestamp":1744041095000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Porosity Engineering and Functionalization of Hyper\u2010Cross\u2010Linked Polymers for Highly Selective CO\n                    <sub>2<\/sub>\n                    Adsorption"],"prefix":"10.1002","volume":"46","author":[{"given":"Yahya","family":"Alemin","sequence":"first","affiliation":[{"name":"Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology  Wuhan 430074 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Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology  Wuhan 430074 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui","family":"Gao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure School of Chemistry and Chemical Engineering Huazhong University of Science and Technology  Wuhan 430074 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-4637-6075","authenticated-orcid":false,"given":"Bien","family":"Tan","sequence":"additional","affiliation":[{"name":"Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure School of 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