气候变化领域集成服务门户(CCPortal): High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target

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DOI	10.1039/c9ee01238a
	High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target
	He G.; Huang S.; Villalobos L.F.; Zhao J.; Mensi M.; Oveisi E.; Rezaei M.; Agrawal K.V.
发表日期	2019
ISSN	1754-5692
起始页码	3305
结束页码	3312
卷号	12 期号:11
英文摘要	Membrane-based postcombustion carbon capture can reduce the capture penalty in comparison to absorbent-based separation. To realize this, high-performance membranes are urgently needed with a CO2 permeance exceeding 1000 gas permeation units or GPU, and a CO2/N2 mixture separation factor exceeding 20. Here, we report a new class of organic-inorganic hybrid membranes based on single-layer graphene with a selective layer thinner than 20 nm. For this, the impermeable graphene lattice is exposed to oxygen plasma leading to a high percentage of vacancy defects (porosity up to 18.5%) and is then functionalized with CO2-philic polymeric chains. Treating a gas stream mimicking flue gas, the hybrid membranes yield a six-fold higher CO2 permeance (6180 GPU with a CO2/N2 separation factor of 22.5) than the performance target. Membranes prepared with a combination of optimized graphene porosity, pore size, and functional groups yield a CO2 permeance up to 11 790 GPU. Other membranes yield a CO2/N2 selectivity up to 57.2. This journal is © The Royal Society of Chemistry.
语种	英语
scopus关键词	Carbon capture; Carbon dioxide; Graphene; organic-inorganic materials; Polymers; Pore size; Separation; Graphene lattices; Mixture separation factors; Organic-inorganic hybrid membranes; Performance targets; Post-combustion carbon captures; Selective layers; Separation factors; Vacancy Defects; Gas permeable membranes; carbon; carbon sequestration; lattice dynamics; membrane; performance assessment; plasma; polymer
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162494
作者单位	Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, Switzerland; Institute of Chemical Sciences and Engineering (ISIC), EPFL, Sion, Switzerland; Innovation Interdisciplinary Centre for Electron Microscopy (CIME), EPFL, Lausanne, Switzerland
推荐引用方式 GB/T 7714	He G.,Huang S.,Villalobos L.F.,et al. High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target[J],2019,12(11).
APA	He G..,Huang S..,Villalobos L.F..,Zhao J..,Mensi M..,...&Agrawal K.V..(2019).High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target.Energy and Environmental Science,12(11).
MLA	He G.,et al."High-permeance polymer-functionalized single-layer graphene membranes that surpass the postcombustion carbon capture target".Energy and Environmental Science 12.11(2019).