Double-Layer Structured CO2 Adsorbent Functionalized with Modified Polyethyleneimine for High Physical and Chemical Stability
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeon, Sunbin | - |
dc.contributor.author | Jung, Hyunchul | - |
dc.contributor.author | Kim, Sung Hyun | - |
dc.contributor.author | Lee, Ki Bong | - |
dc.date.accessioned | 2021-09-02T10:04:02Z | - |
dc.date.available | 2021-09-02T10:04:02Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-06-27 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/74891 | - |
dc.description.abstract | CO2 capture using polyethyleneimine (PEI)-impregnated silica adsorbents has been receiving a lot of attention. However, the absence of physical stability (evaporation and leaching of amine) and chemical stability (urea formation) of the PEI-impregnated silica adsorbent has been generally established. Therefore, in this study, a double-layer impregnated structure, developed using modified PEI, is newly proposed to enhance the physical and chemical stabilities of the adsorbent. Epoxy-modified PEI and diepoxide-crosslinked PEI were impregnated via a dry impregnation method in the first and second layers, respectively. The physical stability of the double-layer structured adsorbent was noticeably enhanced when compared to the conventional adsorbents with a single layer. In addition to the enhanced physical stability, the result of simulated temperature swing adsorption cycles revealed that the double-layer structured adsorbent presented a high potential working capacity (3.5 mmol/g) and less urea formation under CO2-rich regeneration conditions. The enhanced physical and chemical stabilities as well as the high CO2 working capacity of the double-layer structured adsorbent were mainly attributed to the second layer consisting of diepoxide-cross-linked PEI. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | CARBON-DIOXIDE CAPTURE | - |
dc.subject | METAL-ORGANIC FRAMEWORKS | - |
dc.subject | CO2-INDUCED DEGRADATION | - |
dc.subject | THERMAL-STABILITY | - |
dc.subject | SUPPORTED AMINES | - |
dc.subject | HIGH-CAPACITY | - |
dc.subject | ADSORPTION | - |
dc.subject | SILICA | - |
dc.subject | PERFORMANCE | - |
dc.subject | SORBENTS | - |
dc.title | Double-Layer Structured CO2 Adsorbent Functionalized with Modified Polyethyleneimine for High Physical and Chemical Stability | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Sung Hyun | - |
dc.contributor.affiliatedAuthor | Lee, Ki Bong | - |
dc.identifier.doi | 10.1021/acsami.8b01749 | - |
dc.identifier.scopusid | 2-s2.0-85049206065 | - |
dc.identifier.wosid | 000437811400021 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.10, no.25, pp.21213 - 21223 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 10 | - |
dc.citation.number | 25 | - |
dc.citation.startPage | 21213 | - |
dc.citation.endPage | 21223 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | CARBON-DIOXIDE CAPTURE | - |
dc.subject.keywordPlus | METAL-ORGANIC FRAMEWORKS | - |
dc.subject.keywordPlus | CO2-INDUCED DEGRADATION | - |
dc.subject.keywordPlus | THERMAL-STABILITY | - |
dc.subject.keywordPlus | SUPPORTED AMINES | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | SILICA | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SORBENTS | - |
dc.subject.keywordAuthor | CO2 capture | - |
dc.subject.keywordAuthor | polyethyleneimine | - |
dc.subject.keywordAuthor | amine modification | - |
dc.subject.keywordAuthor | double-layer structure | - |
dc.subject.keywordAuthor | stability | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.