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Cost-effective facilitated olefin transport membranes consisting of polymer/AgCF3SO3/Al(NO3)(3) with long-term stability

Title
Cost-effective facilitated olefin transport membranes consisting of polymer/AgCF3SO3/Al(NO3)(3) with long-term stability
Author
강용수
Keywords
POLYMER ELECTROLYTE MEMBRANES; SILVER IONS; OLEFIN/PARAFFIN SEPARATION; NANOPARTICLES; SALT; PERFORMANCE; AL(NO3)(3); COMPLEXES; MATRIX; AGNO3
Issue Date
2015-12
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MEMBRANE SCIENCE, v. 495, Page. 61-64
Abstract
Facilitated olefin transport membranes consisting of a polyvinylpyrrolidone (PVP)/AgCF3SO3/Al(NO3)(3) complex were prepared for the separation of a propylene/propane mixture. Very recently, Al(NO3)(3) was utilized to retard reduction of silver ions generated from AgBF4 In this study, the effect of Al(NO3)(3) on inhibiting the reduction of Ag+ ions generated from AgCF3SO3 was investigated, where AgCF3SO3 was used as a cost-effective alternative to AgBF4 in the olefin transport membranes. Incorporation of Al(NO3)(3) into the PVP/AgCF3SO3 complex membrane resulted in a selectivity of 5 and a permeance of 0.5 GPU for the separation of a propylene/propane mixture. Furthermore, the PVP/AgCF3SO3/Al(NO3)(3) complex membranes exhibited long-term stability even though AgCF3SO3 is easily reduced to silver nanoparticles. It was thus confirmed that Al(NO3)(3) played the role of a retardant for the reduction of Ag+ ions generated from AgCF3SO3 as well as from AgBF4. The coordination properties of the PVP/AgCF3SO3/Al(NO3)(3) complex membranes were characterized by X-ray photoelectron, Fourier transform (FT) infrared, and FT-Raman spectroscopy. (C) 2015 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0376738815300892?via%3Dihubhttp://hdl.handle.net/20.500.11754/30074
ISSN
0376-7388; 1873-3123
DOI
10.1016/j.memsci.2015.07.061
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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