Abstract
An imaging method for ionic channels in proton exchange membranes in wet conditions is reported. The ionic channels were replicated by the electrodeposition of nickel and then observed using scanning electron microscopy (SEM). The fidelity of the replica to the channels was confirmed by comparison of the SEM image of the nickel deposit to the transmission electron microscopy and atomic force microscopy image of the ionic channels using a sulfonated hydrocarbon block copolymer membrane, which keeps continuous ionic channels even in dry condition. By use of this method, the morphology of the ionic channels in a Nafion membrane in wet conditions was successfully observed. The nickel replica showed a continuous network of 5−10 nm wide channels, which is close to the reported value estimated using small-angle X-ray spectroscopy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
