Different functional groups functionalized hexagonal boron nitride (h-BN) nanoparticles and multi-walled carbon nanotubes (MWCNT) for hydrogen storage

Doğan, Mehmet; Selek, Ayşe; Turhan, Onur; Kızılduman, Berna Koçer; Bi̇ci̇l, Zeynep

doi:10.1016/j.fuel.2021.121335

Cited by 50 publications

(13 citation statements)

References 37 publications

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“…Compared to the epoxy nanocomposite containing 0.1 wt% h‐BN presented in Figure 3d, it can be observed that microcracks increase. The reason for this is that at low reinforcement ratios, microcracks absorb the fracture energy in the elongation direction thanks to a certain amount of h‐BN particles and prevent the expansion of the cracks 45 . Similarly, comparing Figures 3e,f reveals that agglomerations in the structure increased with the increase of nanomaterials in hybrid structures, and therefore, rougher surfaces were obtained in the epoxy matrix.…”

Section: Resultsmentioning

confidence: 85%

Physical and mechanical properties of graphene and h‐Boron nitride reinforced hybrid aerospace grade epoxy nanocomposites

Öztürkmen,

Öz,

Dilsiz

2023

J of Applied Polymer Sci

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Varying graphene nanoplatelet (GNP) and hexagonal boron nitride (h‐BN) based fillers were integrated to an aerospace grade epoxy resin typically used as matrix to obtain or repair structural parts of aerospace platforms. The three‐roll milling approach was used for this purpose. Five cycles were performed for the mixing while the gap between rollers was 50 μm. Microstructure and thermal properties of the nanocomposites were studied. Moreover, mechanical and transport (electrical as well as thermal) performances were investigated. Results show that certain fillers yield multifunctional properties, that is, enhanced flexural strength by up to 69% in combination with high electrical conductivities with orders of magnitude of approximately and improved thermal conductivities up to 9.3%. For instance, the hybrid nanocomposite sample produced with 0.5 wt% GNP and 0.5 wt% h‐BN added to the epoxy matrix exhibits an electrical conductivity which increased fold, a flexural strength increased by 69% and thermal conductivity increased by 7% in comparison the neat epoxy. Hence, in this study it was demonstrated that these properties can be engineered and tuned effectively for aerospace applications like lightweight avionic chassis which have specific requirements like thermal and electric conductivity which naturally leads to the possible usage of GNP and h‐BN in an epoxy. Correspondingly, presented results are of relevance for novel thermal interface materials with tailored electrical properties.

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Section: Resultsmentioning

confidence: 85%

Physical and mechanical properties of graphene and h‐Boron nitride reinforced hybrid aerospace grade epoxy nanocomposites

Öztürkmen,

Öz,

Dilsiz

2023

J of Applied Polymer Sci

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“…To further enhance the adsorption capacity, surface modifications and composite formation with metal/ metal-oxides are desirable for a strong substratehydrogen interaction. [77,78] In a study, Ni-decorated MWCNTs were examined at a pressure (4-20 bars) and room temperature. The maximum H 2 uptake exhibited was 0.298 wt% at 20 bars.…”

Section: Carbon-based Materialsmentioning

confidence: 99%

Recent Advances and Reliable Assessment of Solid‐State Materials for Hydrogen Storage: A Step Forward toward a Sustainable H₂ Economy

Nazir

Rehman

Hussain

et al. 2022

Advanced Sustainable Systems

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Moreover, burning fossil fuels intensifies the emission of greenhouse gases causing catastrophic climatic change. [1] Therefore, an alternative renewable energy with no greenhouse gases emission is highly needed. In this framework, hydrogen (H 2 ) is considered as a promising candidate for carbon-free energy production. [2] Additionally, H 2 is inexhaustibly abundant in nature and endowed with the intriguing features such as the lightest weight in the periodic table and generates high chemical energy of 142 MJ kg −1 per unit mass; about three times greater than the energy produced (47 MJ kg −1 ) by burning hydrocarbons. [3,4] Therefore, continuous efforts are being devoted to replace the conventional liquid hydrocarbon-driven socioeconomic system to hydrogen economy, which embraces the generation of H 2 , its storage, and ultimately energy transfer. [5] However, finding the efficient and economical means of H 2 storage is still a major challenge to be addressed before the practical implication of hydrogen economy. Generally, H 2 can be stored by different strategies including liquefaction method, [6] compression in gas cylinders, [7] adsorption on solid-state materials, [8] solid form as chemical hydrides, [9] and using metastable alloys which can absorb/desorb H 2 with faster kinetics at low temperature. [10] For the onboard applications, H 2 storage capacities should fulfill the goals set by the

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“…The catalyst has exhibited a mass activity value of 933.3 mA/mg Pt [127]. Dogan et al [128] introduced hexagonal-based boron nitrite with a conducting polymer supported MWCNT (h-BN-Ph-NH-CO-MWCNT) composite by coupling, acylation, and oxidation routes. The electrode materials have high van der Waals interactions with hydrogen, the acyl group playing an important role in enhancing their electrocatalytic activities.…”

Section: Multi-walled Carbon Nanotube-based Electrode Materialsmentioning

confidence: 99%

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

et al. 2022

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Carbon-based nanocomposites have developed as the most promising and emerging materials in nanoscience and technology during the last several years. They are microscopic materials that range in size from 1 to 100 nanometers. They may be distinguished from bulk materials by their size, shape, increased surface-to-volume ratio, and unique physical and chemical characteristics. Carbon nanocomposite matrixes are often created by combining more than two distinct solid phase types. The nanocomposites that were constructed exhibit unique properties, such as significantly enhanced toughness, mechanical strength, and thermal/electrochemical conductivity. As a result of these advantages, nanocomposites have been used in a variety of applications, including catalysts, electrochemical sensors, biosensors, and energy storage devices, among others. This study focuses on the usage of several forms of carbon nanomaterials, such as carbon aerogels, carbon nanofibers, graphene, carbon nanotubes, and fullerenes, in the development of hydrogen fuel cells. These fuel cells have been successfully employed in numerous commercial sectors in recent years, notably in the car industry, due to their cost-effectiveness, eco-friendliness, and long-cyclic durability. Further; we discuss the principles, reaction mechanisms, and cyclic stability of the fuel cells and also new strategies and future challenges related to the development of viable fuel cells.

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Different functional groups functionalized hexagonal boron nitride (h-BN) nanoparticles and multi-walled carbon nanotubes (MWCNT) for hydrogen storage

Cited by 50 publications

References 37 publications

Physical and mechanical properties of graphene and h‐Boron nitride reinforced hybrid aerospace grade epoxy nanocomposites

Physical and mechanical properties of graphene and h‐Boron nitride reinforced hybrid aerospace grade epoxy nanocomposites

Recent Advances and Reliable Assessment of Solid‐State Materials for Hydrogen Storage: A Step Forward toward a Sustainable H₂ Economy

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

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Different functional groups functionalized hexagonal boron nitride (h-BN) nanoparticles and multi-walled carbon nanotubes (MWCNT) for hydrogen storage

Cited by 50 publications

References 37 publications

Physical and mechanical properties of graphene and h‐Boron nitride reinforced hybrid aerospace grade epoxy nanocomposites

Physical and mechanical properties of graphene and h‐Boron nitride reinforced hybrid aerospace grade epoxy nanocomposites

Recent Advances and Reliable Assessment of Solid‐State Materials for Hydrogen Storage: A Step Forward toward a Sustainable H2 Economy

Recent Developments in Carbon-Based Nanocomposites for Fuel Cell Applications: A Review

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Product

Resources

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Recent Advances and Reliable Assessment of Solid‐State Materials for Hydrogen Storage: A Step Forward toward a Sustainable H₂ Economy