Cold plasma-Metal Organic Framework (MOF)-177 breathable system for atmospheric remediation
Cold plasma-Metal Organic Framework (MOF)-177 breathable system for atmospheric remediation
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DOI：
10.1016/j.jcou.2021.101642
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发表时间：
2021-07-14
影响因子：
7.7
通讯作者：
Carreon, Maria L.
中科院分区：
文献类型：
--
作者：
Gorky, Fnu;Nambo, Apolo;Carreon, Maria L.
从大气中直接捕获CO2和CH 4以稳定空气中的浓度从而控制全球变暖的工作正在加速。目前正在继续努力开发和优化不同的技术，用于从工业排放场所捕获和隔离这些温室气体。在这项工作中，我们采用MOF-177作为标准温度和压力条件下的有效CO2和CH 4吸附剂。我们证明了解吸下的气体研究时，采用温和的等离子体脉冲的他的可能性。此外，我们进行了甲烷合成甲醇分别使用O2和CO2作为氧化剂在MOF 177的存在下。我们观察到当使用M0 F-177时，在（5：1）（CH 4：O2）流量比为23.5%和甲醇选择性为17.65%下，CH 4 + O2系统的最高转化率。而在相同条件下，（5：1）（CH 4：O2）流量比对于甲烷转化率为18.4%，对于甲醇选择性为11.68%。我们期望对低温等离子体环境下的吸附-反应系统的初步了解可以导致未来的大气修复技术。
The direct capture of CO2 and CH4 from the atmosphere to stabilize the concentrations in the air to control global warming is accelerating. There are continued efforts to develop and optimize different technologies for capture and sequestration of these greenhouse gases from industrial emission sites. In this work we employed MOF-177 as an efficient CO2 and CH4 adsorbent at standard temperature and pressure conditions. We demonstrated the possibility of desorbing the gases under study when employing gentle plasma pulses of He. Moreover, we performed the synthesis of methanol from CH4 using O2 and CO2 as oxidants respectively in the presence of MOF177. We observed the highest conversion for the CH4 + O2 system when employing the MOF-177 at (5:1) (CH4: O2) flow ratio of 23.5 % and methanol selectivity of 17.65 %. While the best performance for the CH4 + CO2 system at the same conditions i.e., (5:1) (CH4: O2) flow ratio was 18.4 % for the methane conversion and 11.68 % for the selectivity towards methanol. We expect this preliminary understanding of the adsorption-reaction system under non-thermal plasma environment can lead to future atmospheric remediation technologies.