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Fabrication of Polybenzimidazole/Palladium Nanoparticles Hollow Fiber Membranes for Hydrogen Purification
Author(s) -
Villalobos Luis Francisco,
Hilke Roland,
Akhtar Faheem Hassan,
Peinemann KlausViktor
Publication year - 2018
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201701567
Subject(s) - membrane , materials science , palladium , spinning , polymer , chemical engineering , nanoparticle , fabrication , fiber , selectivity , layer (electronics) , imidazole , nanotechnology , polymer chemistry , catalysis , composite material , organic chemistry , chemistry , medicine , biochemistry , alternative medicine , pathology , engineering
A novel scheme to fabricate polybenzimidazole (PBI) hollow fiber membranes with a thin skin loaded with fully dispersed palladium nanoparticles is proposed for the first time. Palladium is added to the membrane during the spinning process in the form of ions that coordinate to the imidazole groups of the polymer. This is attractive for membrane production because agglomeration of nanoparticles is minimized and the high‐cost metal is incorporated in only the selective layer—where it is required. Pd‐containing membranes achieve three orders of magnitude higher H 2 permeances and a twofold improvement in H 2 /CO 2 selectivity compared to pure PBI hollow fiber membranes.