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Inside Cover: Direct Imaging of Atomic Permeation Through a Vacancy Defect in the Carbon Lattice (Angew. Chem. Int. Ed. 51/2020)
Author(s) -
Cao Kecheng,
Skowron Stephen T.,
Stoppiello Craig T.,
Biskupek Johannes,
Khlobystov Andrei N.,
Kaiser Ute
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202014392
Subject(s) - vacancy defect , permeation , carbon nanotube , transmission electron microscopy , materials science , palladium , lattice (music) , carbon fibers , chemical physics , crystallography , nanotechnology , molecular physics , chemistry , membrane , catalysis , physics , composite material , composite number , biochemistry , acoustics
Atomic vacancies in graphenic lattices can be applied as sieve pores for sieving atoms, ions, and molecules. In their Communication on page 22922, A. Khlobystov, U. Kaiser, and co‐workers report the direct observation of the permeation of single palladium atoms passing one‐by‐one through a vacancy defect in a single‐walled carbon nanotube by transmission electron microscopy. The curvature of the carbon lattice drives the permeation in the direction from the concave to the convex side of the membrane due to the differences in metal–carbon bonding between opposite sides.