从碱和碱土金属为基础的吸附剂的水分增强CO2解吸直接空气捕获

IF 4.8 2区化学 Q2 CHEMISTRY, PHYSICAL

Applied Catalysis A: General Pub Date : 2025-08-31 DOI:10.1016/j.apcata.2025.120535

Soosan Kim, Xiao Lin, Hanqi Yang, Robert J. Farrauto

{"title":"从碱和碱土金属为基础的吸附剂的水分增强CO2解吸直接空气捕获","authors":"Soosan Kim, Xiao Lin, Hanqi Yang, Robert J. Farrauto","doi":"10.1016/j.apcata.2025.120535","DOIUrl":null,"url":null,"abstract":"<div><div>This study demonstrates the performance of alkali and alkaline earth metal oxide -based solid sorbents, activated through catalytic pretreatment, for CO<sub>2</sub> capture under ambient conditions and its moisture enhanced desorption. The catalytic pretreatment hydrogenates the metal salt precursors to their alkaline oxides enhancing CO<sub>2</sub> adsorption capacities. Following pretreatment, moisture enhanced desorption of captured CO<sub>2</sub> was systematically examined for various sorbents supported on γ-Al<sub>2</sub>O<sub>3</sub>. Moisture enhances the desorption quantity and rate of all tested sorbents. Among the tested sorbents, Na<sub>2</sub>O stands out as the most effective demonstrating superior desorption ability from moisture generated at the vapor pressure of water at 20 °C (∼17 mmHg) avoiding the need for generating steam.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"707 ","pages":"Article 120535"},"PeriodicalIF":4.8000,"publicationDate":"2025-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Moisture-enhanced CO2 desorption from alkali and alkaline earth metal-based sorbents direct air capture\",\"authors\":\"Soosan Kim, Xiao Lin, Hanqi Yang, Robert J. Farrauto\",\"doi\":\"10.1016/j.apcata.2025.120535\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study demonstrates the performance of alkali and alkaline earth metal oxide -based solid sorbents, activated through catalytic pretreatment, for CO<sub>2</sub> capture under ambient conditions and its moisture enhanced desorption. The catalytic pretreatment hydrogenates the metal salt precursors to their alkaline oxides enhancing CO<sub>2</sub> adsorption capacities. Following pretreatment, moisture enhanced desorption of captured CO<sub>2</sub> was systematically examined for various sorbents supported on γ-Al<sub>2</sub>O<sub>3</sub>. Moisture enhances the desorption quantity and rate of all tested sorbents. Among the tested sorbents, Na<sub>2</sub>O stands out as the most effective demonstrating superior desorption ability from moisture generated at the vapor pressure of water at 20 °C (∼17 mmHg) avoiding the need for generating steam.</div></div>\",\"PeriodicalId\":243,\"journal\":{\"name\":\"Applied Catalysis A: General\",\"volume\":\"707 \",\"pages\":\"Article 120535\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2025-08-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Catalysis A: General\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926860X25004363\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis A: General","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926860X25004363","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

摘要

本研究展示了碱和碱土金属氧化物基固体吸附剂的性能，通过催化预处理活化，在环境条件下捕获CO2并增强其水分解吸。催化预处理使金属盐前驱体氢化成碱性氧化物，提高了对CO2的吸附能力。预处理后，系统地研究了γ-Al2O3负载的各种吸附剂对捕获的CO2的水分增强解吸作用。水分提高了所有测试吸附剂的解吸量和速率。在所测试的吸附剂中，Na2O表现出最有效的解吸能力，可以有效地解吸在20°C（~ 17 mmHg）水的蒸汽压下产生的水分，从而避免产生蒸汽。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Moisture-enhanced CO2 desorption from alkali and alkaline earth metal-based sorbents direct air capture

This study demonstrates the performance of alkali and alkaline earth metal oxide -based solid sorbents, activated through catalytic pretreatment, for CO₂ capture under ambient conditions and its moisture enhanced desorption. The catalytic pretreatment hydrogenates the metal salt precursors to their alkaline oxides enhancing CO₂ adsorption capacities. Following pretreatment, moisture enhanced desorption of captured CO₂ was systematically examined for various sorbents supported on γ-Al₂O₃. Moisture enhances the desorption quantity and rate of all tested sorbents. Among the tested sorbents, Na₂O stands out as the most effective demonstrating superior desorption ability from moisture generated at the vapor pressure of water at 20 °C (∼17 mmHg) avoiding the need for generating steam.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Applied Catalysis A: General 化学-环境科学

CiteScore

9.00

自引率

5.50%

发文量

415

审稿时长

24 days

期刊介绍： Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications. Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.