Highly Cooperative CO2 Adsorption via a Cation Crowding Mechanism on a Cesium-Exchanged Phillipsite Zeolite.
Highly Cooperative CO2 Adsorption via a Cation Crowding Mechanism on a Cesium-Exchanged Phillipsite Zeolite.
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通过铯交换菲利普沸石上的阳离子拥挤机制实现高度协同的 CO2 吸附。
DOI:
10.1002/anie.202305816
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Choi HJ
中科院分区:
文献类型:
--
作者:
Choi HJ
An understanding of the CO2adsorption mechanisms on small‐pore zeolites is of practical importance in the development of more efficient adsorbents for the separation of CO2from N2or CH4. Here we report that the CO2isotherms at 25–75 °C on cesium‐exchanged phillipsite zeolite with a Si/Al ratio of 2.5 (Cs‐PHI‐2.5) are characterized by a rectilinear step shape: limited uptake at low CO2pressure (PCO2) is followed by highly cooperative uptake at a critical pressure, above which adsorption rapidly approaches capacity (2.0 mmol g−1). Structural analysis reveals that this isotherm behavior is attributed to the high concentration and large size of Cs+ions in dehydrated Cs‐PHI‐2.5. This results in Cs+cation crowding and subsequent dispersal at a critical loading of CO2, which allows the PHI framework to relax to its wide pore form and enables its pores to fill with CO2over a very narrow range of PCO2. Such a highly cooperative phenomenon has not been observed for other zeolites.
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DOI:
10.1021/acs.jpcc.1c08296.s002
发表时间:
2021
期刊:
The Journal of Physical Chemistry C
影响因子:
--
作者:
E. Bruce;V. Georgieva;M. Verbraeken;C. Murray;Ming;W. J. Casteel;Alessandro Turrina;S. Brandani;P. Wright
通讯作者:
P. Wright
影响因子:
8.6
作者:
Hwajun Lee;Jiho Shin;Wanuk Choi;Hyun June Choi;Taimin Yang;X. Zou;S. Hong
通讯作者:
S. Hong
影响因子:
62.1
作者:
Perez-Botella, Eduardo;Valencia, Susana;Rey, Fernando
通讯作者:
Rey, Fernando
DOI:
10.1007/s10450-018-9942-5
发表时间:
2018-04-01
影响因子:
3.3
作者:
Fraux, Guillaume;Boutin, Anne;Coudert, Francois-Xavier
通讯作者:
Coudert, Francois-Xavier
影响因子:
3.3
作者:
Vrabec, J;Stoll, J;Hasse, H
通讯作者:
Hasse, H