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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b02493
|2 doi
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|a pubmed24n0967.xml
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|a (DE-627)NLM290287405
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|a (NLM)30395474
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a He, Hui
|e verfasserin
|4 aut
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| 245 |
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|a Structure Design of Low-Temperature Regenerative Hyperbranched Polyamine Adsorbent for CO2 Capture
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 28.01.2019
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|a Date Revised 28.01.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a A novel low-temperature regenerative hydroxy-functionalized hyperbranched polyamine adsorbent (0.16OH-HBPA) for CO2 capture was readily prepared using glutaraldehyde to cross-link amino-terminated hyperbranched polymers (HBP) and functionalized with glycidol, followed by the reduction of the imino groups of 0.16OH-HBPA to alkyl aminos using NaBH4. Here, the HBP has been prepared through the one-pot reaction between pentaethylenehexamine and methyl acrylate. The as-prepared 0.16OH-HBPA adsorbent showed a high adsorption capacity (4.05 mmol/g) for CO2 (concentration, 10%) in the presence of water at 25 °C, and the alkyl amino utilization efficiency reached 73%. More importantly, the CO2-adsorbed 0.16OH-HBPA showed excellent regenerative performance at low temperatures (85 °C, under pure CO2 gas) due to the introduced hydroxyl that can cooperatively adsorb CO2 via the amino groups to form stable carbamic acid. This process suppressed the formation of open-chain urea and cyclic urea and could overcome the disadvantages of high regeneration temperatures (≥90 °C, under pure inert gas) of CO2-adsorbed traditional solid amine adsorbents
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Tang, Hanying
|e verfasserin
|4 aut
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|a Chen, Xingjuan
|e verfasserin
|4 aut
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| 700 |
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|a Hou, Xudong
|e verfasserin
|4 aut
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|a Zhou, Xiaochong
|e verfasserin
|4 aut
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|a Chen, Hong
|e verfasserin
|4 aut
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|a Wu, Shanyan
|e verfasserin
|4 aut
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|a Wang, Shuangfei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 34(2018), 47 vom: 27. Nov., Seite 14169-14179
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:34
|g year:2018
|g number:47
|g day:27
|g month:11
|g pages:14169-14179
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|u http://dx.doi.org/10.1021/acs.langmuir.8b02493
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