Imperial College London

Dr Becky Greenaway

Faculty of Natural SciencesDepartment of Chemistry

Senior Lecturer
 
 
 
//

Contact

 

r.greenaway Website

 
 
//

Location

 

401CMolecular Sciences Research HubWhite City Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Giri:2015:10.1038/nature16072,
author = {Giri, N and Del, Popolo MG and Melaugh, G and Greenaway, RL and Raetzke, K and Koschine, T and Pison, L and Gomes, MFC and Cooper, AI and James, SL},
doi = {10.1038/nature16072},
journal = {Nature},
pages = {216--220},
title = {Liquids with permanent porosity},
url = {http://dx.doi.org/10.1038/nature16072},
volume = {527},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Porous solids such as zeolites1 and metal–organic frameworks2,3 are useful in molecular separation and in catalysis, but their solid nature can impose limitations. For example, liquid solvents, rather than porous solids, are the most mature technology for post-combustion capture of carbon dioxide because liquid circulation systems are more easily retrofitted to existing plants. Solid porous adsorbents offer major benefits, such as lower energy penalties in adsorption–desorption cycles4, but they are difficult to implement in conventional flow processes. Materials that combine the properties of fluidity and permanent porosity could therefore offer technological advantages, but permanent porosity is not associated with conventional liquids5. Here we report free-flowing liquids whose bulk properties are determined by their permanent porosity. To achieve this, we designed cage molecules6,7 that provide a well-defined pore space and that are highly soluble in solvents whose molecules are too large to enter the pores. The concentration of unoccupied cages can thus be around 500 times greater than in other molecular solutions that contain cavities8,9,10, resulting in a marked change in bulk properties, such as an eightfold increase in the solubility of methane gas. Our results provide the basis for development of a new class of functional porous materials for chemical processes, and we present a one-step, multigram scale-up route for highly soluble ‘scrambled’ porous cages prepared from a mixture of commercially available reagents. The unifying design principle for these materials is the avoidance of functional groups that can penetrate into the molecular cage cavities.
AU - Giri,N
AU - Del,Popolo MG
AU - Melaugh,G
AU - Greenaway,RL
AU - Raetzke,K
AU - Koschine,T
AU - Pison,L
AU - Gomes,MFC
AU - Cooper,AI
AU - James,SL
DO - 10.1038/nature16072
EP - 220
PY - 2015///
SN - 0028-0836
SP - 216
TI - Liquids with permanent porosity
T2 - Nature
UR - http://dx.doi.org/10.1038/nature16072
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000364396700041&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://www.nature.com/articles/nature16072
VL - 527
ER -