{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T08:10:49Z","timestamp":1791360649638,"version":"4.3.1"},"reference-count":40,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2020,12,31]],"date-time":"2020-12-31T00:00:00Z","timestamp":1609372800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51373019"],"award-info":[{"award-number":["51373019"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>As carbon dioxide (CO2) adsorbents, porous materials with high specific surface areas and abundant CO2-philic groups always exhibit high CO2 capacities. Based on this consensus, a category of oxygen-rich macroporous carbon foams was fabricated from macroporous resorcinol-formaldehyde resins (PRFs), which were obtained via an oil-in-water concentrated emulsion. By the active effect of potassium hydroxide (KOH) at high temperatures, the resultant carbon foams (ACRFs) possessed abundant micropores with rich oxygen content simultaneously. At the same time, most of the ACRFs could retain the marcoporous structure of their precursor. It is found that porosity of ACRFs was mainly determined by carbonization temperature, and the highest specific surface areas and total pore volume of ACRFs could reach 2046 m2\/g and 0.900 cm3\/g, respectively. At 273 K, ACRFs showed highest CO2 capacity as 271 mg\/g at 1 bar and 91.5 mg at 15 kPa. Furthermore, it is shown that the ultra-micropore volume was mainly responsible for the CO2 capacities of ACRFs at 1 bar, and CO2 capacities at 15 kPa were mainly affected by the oxygen content. It is also found that the presence of macropores would accelerate ACRFs adsorbing CO2. This study provides ideas for designing a porous CO2 adsorbent.<\/jats:p>","DOI":"10.3390\/ma14010173","type":"journal-article","created":{"date-parts":[[2020,12,31]],"date-time":"2020-12-31T20:18:47Z","timestamp":1609445927000},"page":"173","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Construction of Oxygen-Rich Carbon Foams for Rapid Carbon Dioxide Capture"],"prefix":"10.3390","volume":"14","author":[{"given":"Cheng","family":"Duan","sequence":"first","affiliation":[{"name":"Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Beijing 100029, China"},{"name":"State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, <email>mijg@mail.buct.edu.cn<\/email>"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Zou","sequence":"additional","affiliation":[{"name":"Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhongjie","family":"Du","sequence":"additional","affiliation":[{"name":"Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianguo","family":"Mi","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, <email>mijg@mail.buct.edu.cn<\/email>"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaxi","family":"Han","sequence":"additional","affiliation":[{"name":"Huanqiu Contracting &amp; Engineering Co., Ltd., Huanqiu Corporation, Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9185-2908","authenticated-orcid":false,"given":"Chen","family":"Zhang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Beijing 100029, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,12,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2855","DOI":"10.1002\/adma.201505004","article-title":"Covalent organic frameworks for CO2 capture","volume":"28","author":"Zeng","year":"2016","journal-title":"Adv. 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