Preparation and Hydrogen Storage Characteristics of Surfactant-Modified Graphene

Abstract

As the depletion of traditional fossil fuels and environmental pollution become serious problems for human society, researchers are actively looking for renewable energy sources. Since hydrogen energy is considered a clean, efficient, and renewable alternative energy source, it is regarded as the most promising option. In this context, how to store hydrogen safely and efficiently has become the major challenge that hinders the actual application. To fill this gap, this paper proposes to utilize surfactant-modified graphene for hydrogen storage. Through a modified Hummers’ method and ultrasonic stripping, this study proposes to prepare graphene from graphite oxide with NaBH4. The surfactant sodium dodecyl benzene sulfonate (SDBS) was used as a dispersant during the reduction process to produce dispersion-stabilized graphene suspensions. Then, to investigate the characteristics of the graphene suspensions, X-ray diffraction (XRD), SEM, TEM, Fourier transform infrared (FT-IR), Raman, XPS, TG, and N2 adsorption–desorption tests were conducted. Finally, analytical models for hydrogen adsorption were investigated with Langmuir and Freundlich fittings. The results show that the application of SDBS can effectively reduce the agglomeration among graphene monolayers and increase the specific surface area of graphene, and that the adsorption behavior is consistent with the Freundlich adsorption model, and is a physical process.

Carbon‐based nanocomposites in solid‐state hydrogen storage technology: An overview

“…Hence, proper hydrogen storage should be characterized by significantly low energy waste, high energy density, and excessive reliability. 46 The exploitation of hydrogen fuel has great relevance in the reduction of the greenhouse effect. As a potential strength source to attain maximum efficiencies, it is necessary to store hydrogen fuel.…”

“…For example, economic 43,44 and infrastructure development 45 in the production and storage of energy from inexhaustible sources rely on hydrogen fuel. Hence, proper hydrogen storage should be characterized by significantly low energy waste, high energy density, and excessive reliability 46 . The exploitation of hydrogen fuel has great relevance in the reduction of the greenhouse effect.…”

Impact of Polymers on Magnesium-Based Hydrogen Storage Systems

“…The safe and efficient technique is to store the hydrogen in the solid state of material-based hydrogen storage systems [77,78]. In material-based hydrogen storage systems, the hydrogen can be stored in two forms: (i) physical adsorption on the material and (ii) stored through chemical bonds [79,80]. Among the different hydrogen storage materials, magnesium (Mg) has been considered one of the excellent materials for hydrogen storage material because of its different forms in hydrides [81][82][83][84].…”

The electronic structures of non-metal (N, S) doped cobalt phosphide catalysts and the catalytic mechanism for the hydrogen evolution reaction of ammonia borane: a theoretical study

“…Therefore, generation of hydrogen safely and efficiently remains to be a major challenge towards the widespread use of hydrogen energy. 4–6…”

“…Therefore, generation of hydrogen safely and efficiently remains to be a major challenge towards the widespread use of hydrogen energy. [4][5][6] Ammonia borane (NH 3 BH 3 , AB) is considered as the most appropriate candidate compound for hydrogen storage due to its non-toxicity, high hydrogen content, good stability at room temperature, easy storage and transportation, ease of releasing hydrogen, and reversible dehydrogenation reaction. [7][8][9][10] Therefore, catalytic decomposition of NH 3 BH 3 is believed to be one of the most optimal methods for hydrogen generation.…”