Preparation, characterization and hydrogen storage studies of carbon nanotubes and their composites: A review

Rather, Sami‐ullah

doi:10.1016/j.ijhydene.2019.12.055

Cited by 154 publications

(42 citation statements)

References 142 publications

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“…Carbon nanotubes are physically and chemically stable, with high electrical conductivity and tensile strength more than times that of stainless steel [76]. The applications of carbon nanotubes are extensive and include their use in; composite plastic materials as electrically conductive fillers or for increasing composite strength; conductive paints and coatings; use in transistors for microelectronics and for semiconductors; energy storage; environmental applications; and for biosensors and medical devices [75,[77][78][79][80][81][82][83].…”

Section: Carbon Nanotubes From Waste Plasticsmentioning

confidence: 99%

Hydrogen and Carbon Nanotubes from Pyrolysis-Catalysis of Waste Plastics: A Review

Williams

2020

Waste Biomass Valor

183

108

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More than 27 million tonnes of waste plastics are generated in Europe each year representing a considerable potential resource. There has been extensive research into the production of liquid fuels and aromatic chemicals from pyrolysis-catalysis of waste plastics. However, there is less work on the production of hydrogen from waste plastics via pyrolysis coupled with catalytic steam reforming. In this paper, the different reactor designs used for hydrogen production from waste plastics are considered and the influence of different catalysts and process parameters on the yield of hydrogen from different types of waste plastics are reviewed. Waste plastics have also been investigated as a source of hydrocarbons for the generation of carbon nanotubes via the chemical vapour deposition route. The influences on the yield and quality of carbon nanotubes derived from waste plastics are reviewed in relation to the reactor designs used for production, catalyst type used for carbon nanotube growth and the influence of operational parameters.

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Section: Carbon Nanotubes From Waste Plasticsmentioning

confidence: 99%

Hydrogen and Carbon Nanotubes from Pyrolysis-Catalysis of Waste Plastics: A Review

Williams

2020

Waste Biomass Valor

183

108

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“…However, the potential shown in recent research projects is huge. Recent reviews of hydrogen storage in carbon nanomaterials can be found in [19,[26][27][28].…”

Section: Carbon Nanomaterialsmentioning

confidence: 99%

Comparison of Hydrogen Powertrains with the Battery Powered Electric Vehicle and Investigation of Small-Scale Local Hydrogen Production Using Renewable Energy

Handwerker

Wellnitz

Marzbani³

2021

Hydrogen

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Climate change is one of the major problems that people face in this century, with fossil fuel combustion engines being huge contributors. Currently, the battery powered electric vehicle is considered the predecessor, while hydrogen vehicles only have an insignificant market share. To evaluate if this is justified, different hydrogen power train technologies are analyzed and compared to the battery powered electric vehicle. Even though most research focuses on the hydrogen fuel cells, it is shown that, despite the lower efficiency, the often-neglected hydrogen combustion engine could be the right solution for transitioning away from fossil fuels. This is mainly due to the lower costs and possibility of the use of existing manufacturing infrastructure. To achieve a similar level of refueling comfort as with the battery powered electric vehicle, the economic and technological aspects of the local small-scale hydrogen production are being investigated. Due to the low efficiency and high prices for the required components, this domestically produced hydrogen cannot compete with hydrogen produced from fossil fuels on a larger scale.

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“…Similar to CNFs, carbon nanotubes (CNTs) are also considered a possible source of solid-state reversible hydrogen storage medium due to their high surface area, developed nanoporous texture, tunable properties, cage-like structure, chemical stability, and easy synthesis methods [67]. Compared to CNFs, CNTs have a simpler graphite-like structure, consisting of one or multiple graphene sheets rolled up to form filaments having a cylindrical shape.…”

Section: Graphene-derived Carbons: Carbon Nanotubes and Nanofibersmentioning

confidence: 99%

Characterization of Carbon Materials for Hydrogen Storage and Compression

Sdanghi

Canevesi

Celzard

et al. 2020

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Carbon materials have proven to be a suitable choice for hydrogen storage and, recently, for hydrogen compression. Their developed textural properties, such as large surface area and high microporosity, are essential features for hydrogen adsorption. In this work, we first review recent advances in the physisorption characterization of nanoporous carbon materials. Among them, approaches based on the density functional theory are considered now standard methods for obtaining a reliable assessment of the pore size distribution (PSD) over the whole range from narrow micropores to mesopores. Both a high surface area and ultramicropores (pore width < 0.7 nm) are needed to achieve significant hydrogen adsorption at pressures below 1 MPa and 77 K. However, due to the wide PSD typical of activated carbons, it follows from an extensive literature review that pressures above 3 MP are needed to reach maximum excess uptakes in the range of ca. 7 wt.%. Finally, we present the adsorption–desorption compression technology, allowing hydrogen to be compressed at 70 MPa by cooling/heating cycles between 77 and 298 K, and being an alternative to mechanical compressors. The cyclic, thermally driven hydrogen compression might open a new scenario within the vast field of hydrogen applications.

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Preparation, characterization and hydrogen storage studies of carbon nanotubes and their composites: A review

Cited by 154 publications

References 142 publications

Hydrogen and Carbon Nanotubes from Pyrolysis-Catalysis of Waste Plastics: A Review

Hydrogen and Carbon Nanotubes from Pyrolysis-Catalysis of Waste Plastics: A Review

Comparison of Hydrogen Powertrains with the Battery Powered Electric Vehicle and Investigation of Small-Scale Local Hydrogen Production Using Renewable Energy

Characterization of Carbon Materials for Hydrogen Storage and Compression

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