Synthesis and characteristics of CMK-3 modified with magnetite nanoparticles for application in hydrogen storage
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RESEARCH PAPER
Synthesis and characteristics of CMK-3 modified with magnetite nanoparticles for application in hydrogen storage Lisandro F. Venosta & Juliana M. Juárez & Oscar A. Anunziata & Paula G. Bercoff & Marcos B. Gómez Costa Received: 4 May 2020 / Accepted: 20 July 2020 # Springer Nature B.V. 2020
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 nanoparticles (Fe-CMK-3) was successfully synthesized and characterized by X-ray diffraction, textural properties analysis, transmission and scanning electron microscopy, X-ray photoelectron spectroscopy, and magnetization 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 hydrogen adsorption by weak bond forces (physisorption). A hydrogen adsorption mechanism was proposed in which the nanoparticles of magnetite have an important role.
L. F. Venosta : J. M. Juárez (*) : O. A. Anunziata : M. B. Gómez Costa Centro de Investigación en Nanociencia y Nanotecnología (NANOTEC), Facultad Regional Córdoba, Universidad Tecnológica Nacional, Maestro López y Cruz Roja, 5016 Córdoba, Argentina e-mail: [email protected] L. F. Venosta : P. G. Bercoff Facultad de Matemática, Astronomía, Física y Computación (FAMAF), Universidad Nacional de Córdoba, IFEG, CONICE, Medina Allende s/n, Ciudad Universitaria, Córdoba, Argentina
Keywords Magnetite . CMK-3 . Hydrogen . Storage . Adsorption . Nanocomposites
Introduction In the past decades, many researchers have paid special attention to hydrogen storage, because it is an effective, cheap, and clean energy carrier with a nominal capacity of 243 kJ/mol. It can be used not only for fuel cell vehicles but also in portable devices. The main advantage of hydrogen as a perfect substitute to fossil resources is that it tackles both energy and environmental problems at the same time (Froudakis 2011; Dutta 2014; Satyapal et al. 2007; Armoli and Balzani 2011; Liu et al. 2010). Even though hydrogen has a high heating value per unit mass, it is renewing, it is eco-friendly, and it has a kinetics for adsorption-desorption that can be considered simple, a viable H2 storage system is critical. Among the disadvantages, storage and transport problems must be solved (Langmi et al. 2014). Therefore, the current scientific challenge is to design a lightweight, low-cost nanostructured material that can be used as a “hydrogen sponge,” with a reversible hydrogen uptake at room temperature (Wang et al. 2010). Different materials such as zeolites, activated carbons, and MOFs have been widely studied in this field of application (Liu et al. 2007;
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