气候变化领域集成服务门户(CCPortal): Dendritic silver self-assembly in molten-carbonate membranes for efficient carbon dioxide capture

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DOI	10.1039/c9ee03497h
	Dendritic silver self-assembly in molten-carbonate membranes for efficient carbon dioxide capture
	McNeil L.A.; Mutch G.A.; Iacoviello F.; Bailey J.J.; Triantafyllou G.; Neagu D.; Miller T.S.; Papaioannou E.I.; Hu W.; Brett D.J.L.; Shearing P.R.; Metcalfe I.S.
发表日期	2020
ISSN	17545692
起始页码	1766
结束页码	1775
卷号	13 期号:6
英文摘要	Membranes for CO2 capture should offer high permeant fluxes to keep membrane surface area small and material requirements low. Ag-supported, dual-phase, molten-carbonate membranes routinely demonstrate the highest CO2 fluxes in this class of membrane. However, using Ag as a support incurs high cost. Here, the non-equilibrium conditions of permeation were exploited to stimulate the self-assembly of a percolating, dendritic network of Ag from the molten carbonate. Multiple membrane support geometries and Ag incorporation methods were employed, demonstrating the generality of the approach, while X-ray micro-computed tomography confirmed that CO2 and O2 permeation stimulated self-assembly. We report the highest flux of Ag-supported molten-salt membranes to date (1.25 ml min-1 cm-2 at 650 °C) and ultrahigh permeability (9.4 × 10-11 mol m-1 s-1 Pa-1), surpassing the permeability requirement for economically-competitive post-combustion CO2 capture, all whilst reducing the membrane-volume-normalised demand for Ag by one order of magnitude. © The Royal Society of Chemistry.
英文关键词	Carbon dioxide; Carbonation; Computerized tomography; Membranes; Permeation; Self assembly; Carbon dioxide capture; Dendritic networks; Incorporation method; Material requirements; Membrane supports; Membrane surface; Nonequilibrium conditions; X ray micro-computed tomography; Silver compounds
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189641
作者单位	School of Engineering, Newcastle University, Merz Court, Newcastle Upon Tyne, NE1 7RU, United Kingdom; Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London, WC1E 7JE, United Kingdom
推荐引用方式 GB/T 7714	McNeil L.A.,Mutch G.A.,Iacoviello F.,et al. Dendritic silver self-assembly in molten-carbonate membranes for efficient carbon dioxide capture[J],2020,13(6).
APA	McNeil L.A..,Mutch G.A..,Iacoviello F..,Bailey J.J..,Triantafyllou G..,...&Metcalfe I.S..(2020).Dendritic silver self-assembly in molten-carbonate membranes for efficient carbon dioxide capture.Energy & Environmental Science,13(6).
MLA	McNeil L.A.,et al."Dendritic silver self-assembly in molten-carbonate membranes for efficient carbon dioxide capture".Energy & Environmental Science 13.6(2020).