Synthesis and characteristics of CMK-3 modified with magnetite nanoparticles for application in hydrogen storage.
Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Univesidsad Tecnológica Nacional
Abstract
: In this work, we report the synthesis and
characterization of iron oxide nanoparticles supported
in nanostructured carbon (CMK-3). This material is
promising in the application of hydrogen adsorption
for energy storage. The material with iron oxide nano particles (Fe-CMK-3) was successfully synthesized and
characterized by X-ray diffraction, textural properties
analysis, transmission and scanning electron microsco py, X-ray photoelectron spectroscopy, and magnetiza tion studies. A large amount of the iron incorporated as
iron oxide nanoparticles was in the magnetite phase.
The incorporation of magnetite on the CMK-3 carbon
surface significantly improved the storage capacity of
hydrogen (4.45 wt% at 77 K and 10 bar) compared with
the CMK-3 framework alone (2.20 wt% at 77 K and
10 bar). The synthesized material is promising for hy drogen adsorption by weak bond forces (physisorption).
A hydrogen adsorption mechanism was proposed in
which the nanoparticles of magnetite have an important
role.
Description
Keywords
Magnetite, CMK-3, Hydrogen, Storage, Adsorption, Nanocomposites
Citation
Received: 4 may 2020/ Accepted:20 july 2020.
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