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Herein, a novel aliphatic Zr\u2010based nanocluster, ZJU\u2010527(Zr), was synthesized from low\u2010cost citric acid. It exhibits a specific surface area of 174.24 m\n                    <jats:sup>2<\/jats:sup>\n                    \/g, an S\u2010shaped channel (4.52\u20135.13 \u00c5), and excellent stability over a pH range of 3\u201312. CO\n                    <jats:sub>2<\/jats:sub>\n                    adsorption on ZJU\u2010527(Zr) is well maintained after five cycles, owing to its excellent chemical and thermal stability. ZJU\u2010527(Zr) exhibits excellent humidity resistance, with dynamic CO\n                    <jats:sub>2<\/jats:sub>\n                    adsorption remaining nearly unchanged (7.05 cm\n                    <jats:sup>3<\/jats:sup>\n                    \/g at dry and 5.17 cm\n                    <jats:sup>3<\/jats:sup>\n                    \/g at 80% RH). For a CO\n                    <jats:sub>2<\/jats:sub>\n                    \/N\n                    <jats:sub>2<\/jats:sub>\n                    (\n                    <jats:italic>v\/v<\/jats:italic>\n                    , 15\/85) mixture, it has excellent ideal adsorbed solution theory selectivity of 200.60 and dynamic separation coefficients (29.90 at dry, 21.27 at 80% relative humidity (RH)). During Ar purging, CO\n                    <jats:sub>2<\/jats:sub>\n                    is readily desorbed from the S\u2010shaped channel in both CO\n                    <jats:sub>2<\/jats:sub>\n                    \/N\n                    <jats:sub>2<\/jats:sub>\n                    and CO\n                    <jats:sub>2<\/jats:sub>\n                    \/C\n                    <jats:sub>2<\/jats:sub>\n                    H\n                    <jats:sub>4<\/jats:sub>\n                    systems, due to its low isosteric heat of adsorption (20.64\u00a0kJ\/mol). Thus, ZJU\u2010527(Zr) is a promising candidate for CO\n                    <jats:sub>2<\/jats:sub>\n                    adsorption and separation, with easy desorption and effective regeneration.\n                  <\/jats:p>","DOI":"10.1002\/smll.74929","type":"journal-article","created":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T10:27:35Z","timestamp":1787308055000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Novel Aliphatic Zr\u2010Based Nanocluster With S\u2010Shaped Channel for CO\n                    <sub>2<\/sub>\n                    Adsorption and Separation Under Humid Condition"],"prefix":"10.1002","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1910-8110","authenticated-orcid":false,"given":"Laigang","family":"Hu","sequence":"first","affiliation":[{"name":"State Key Laboratory of Soil Pollution Control and Safety College of Environmental and Resource Sciences Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education Zhejiang University  Hangzhou China"},{"name":"Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University\u2010Hangzhou Global Scientific and Technological Innovation Center  Hangzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenning","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Soil Pollution Control and Safety College of Environmental and Resource Sciences Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education Zhejiang University  Hangzhou China"},{"name":"Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University\u2010Hangzhou Global Scientific and Technological Innovation Center  Hangzhou 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Process and Control Zhejiang University\u2010Hangzhou Global Scientific and Technological Innovation Center  Hangzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ling","family":"Jiang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Soil Pollution Control and Safety College of Environmental and Resource Sciences Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education Zhejiang University  Hangzhou China"},{"name":"Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University\u2010Hangzhou Global Scientific and Technological Innovation Center  Hangzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mengxue","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Soil Pollution Control and Safety College of Environmental and Resource Sciences Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education Zhejiang University  Hangzhou China"},{"name":"Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University\u2010Hangzhou Global Scientific and Technological Innovation Center  Hangzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chaogang","family":"Xing","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Soil Pollution Control and Safety College of Environmental and Resource Sciences Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education Zhejiang University  Hangzhou China"},{"name":"Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University\u2010Hangzhou Global Scientific and Technological Innovation Center  Hangzhou China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiting","family":"Yue","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Soil Pollution Control and Safety 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