Electrospun carbon nanofibers containing Co-TiC nanoparticles-like superficial protrusions as a catalyst for H2 gas production from ammonia borane complex

Al-Enizi, Abdullah M.; Brooks, Robert; Abutaleb, Ahmed; El-Halwany, M.M.; El‐Newehy, Mohamed H.; Yousef, Ayman

doi:10.1016/j.ceramint.2017.08.135

Cited by 22 publications

(15 citation statements)

References 65 publications

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“…The characterizations of the prepared catalyst showed the fabrication of smooth a nonbeaded NFs contained Co, Cr7C3, and C. The calcination has not influenced the N morphology due to the polycondensation characteristics of the utilized metal and me [96] with permission from Elsevier.…”

Section: Cocr7c3-supported C Nanofibersmentioning

confidence: 99%

“…Titanium carbide (TiC) is one of the promising catalytic carbides due to its chemical and mechanical stability and excellent physical and catalytic properties. Even though TiC has been synthesized and tested for different catalytic reactions, such as the electro-oxidation of AB and NH 3 BH 3 , its synthesis requires extremely high temperatures (up to 1500 °C) to ensure the reaction between the C source and Ti precursor [ 96 ].…”

Section: Carbon Nfs As a Catalytic Support For Ab Hydrolysis Reactionmentioning

confidence: 99%

“…Aymen et al have prepared electrospun cobalt–titanium carbide–carbon NFs (Co–TiC–C NFs) at relatively low temperatures using ES, followed by calcination [ 96 ]. Co was used for three different reasons.…”

Section: Carbon Nfs As a Catalytic Support For Ab Hydrolysis Reactionmentioning

confidence: 99%

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Catalytic and Photocatalytic Electrospun Nanofibers for Hydrogen Generation from Ammonia Borane Complex: A Review

Abutaleb

2021

Polymers

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Hydrogen (H2) is a promising renewable energy source that can replace fossil fuels since it can solve several environmental and economic issues. However, the widespread usage of H2 is constrained by its storage and safety issues. Many researchers consider solid materials with an excellent capacity for H2 storage and generation as the solution for most H2-related issues. Among solid materials, ammonia borane (abbreviated hereafter as AB) is considered one of the best hydrogen storage materials due to its extraordinary H2 content and small density. However, the process must be conducted in the presence of efficient catalysts to obtain a reasonable amount of generated H2. Electrospun nanofibrous catalysts are a new class of efficient catalysts that involves the usage of polymers. Here, a comprehensive review of the ceramic-supported electrospun NF catalysts for AB hydrolysis is presented, with a special focus on catalytic and photolytic performance and preparation steps. Photocatalytic AB hydrolysis was discussed in detail due to its importance and promising results. AB photocatalytic hydrolysis mechanisms under light were also explained. Electrospun catalysts show excellent activity for AB hydrolysis with good recyclability. Kinetics studies show that the AB hydrolysis reaction is independent of AB concentration and the first-order reaction of NF catalysts.

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Section: Cocr7c3-supported C Nanofibersmentioning

confidence: 99%

Section: Carbon Nfs As a Catalytic Support For Ab Hydrolysis Reactionmentioning

confidence: 99%

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Catalytic and Photocatalytic Electrospun Nanofibers for Hydrogen Generation from Ammonia Borane Complex: A Review

Abutaleb

2021

Polymers

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“…Al-Enizi et al [234] reported an improvement in the generation of hydrogen gas through the hydrolysis of ammonia borane complex by the use of carbon fibers decorated with Co-TiC nanoparticles-like superficial protrusions (Figure 30b) prepared through a one-step electrospinning approach.…”

Section: Hydrogen Production By Photo-assisted Electro-chemical Watermentioning

confidence: 99%

Electrospun Nanomaterials for Energy Applications: Recent Advances

Santangelo

2019

Applied Sciences

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Electrospinning is a simple, versatile, cost-effective, and scalable technique for the growth of highly porous nanofibers. These nanostructures, featured by high aspect ratio, may exhibit a large variety of different sizes, morphologies, composition, and physicochemical properties. By proper post-spinning heat treatment(s), self-standing fibrous mats can also be produced. Large surface area and high porosity make electrospun nanomaterials (both fibers and three-dimensional fiber networks) particularly suitable to numerous energy-related applications. Relevant results and recent advances achieved by their use in rechargeable lithium- and sodium-ion batteries, redox flow batteries, metal-air batteries, supercapacitors, reactors for water desalination via capacitive deionization and for hydrogen production by water splitting, as well as nanogenerators for energy harvesting, and textiles for energy saving will be presented and the future prospects for the large-scale application of electrospun nanomaterials will be discussed.

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“…Metal and metal oxide (M/MO) nanoparticles (NPs) have excellent catalytic properties [1,2,3,4,5]. However, M/MO NPs cause high-pressure drop in fixed-bed systems.…”

Section: Introductionmentioning

confidence: 99%

Polarized Catalytic Polymer Nanofibers

2019

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Molecular scale modifications were achieved by spontaneous polarization which is favored in enhancements of β-crystallization phase inside polyvinylidene fluoride (PVDF) nanofibers (NFs). These improvements were much more effective in nano and submicron fibers compared to fibers with relatively larger diameters. Metallic nanoparticles (NPs) supported by nanofibrous membranes opened new vistas in filtration, catalysis, and serving as most reliable resources in numerous other industrial applications. In this research, hydrogenation of phenol was studied as a model to test the effectiveness of polarized PVDF nanofiber support embedded with agglomerated palladium (Pd) metallic nanoparticle diameters ranging from 5–50 nm supported on polymeric PVDF NFs with ~200 nm in cross-sectional diameters. Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Atomic Force Microscopy (AFM), Energy Dispersive X-Ray Spectroscopy (EDX), Fourier Transform Infrared Spectroscopy (FTIR) and other analytical analysis revealed both molecular and surface morphological changes associated with polarization treatment. The results showed that the fibers mats heated to their curie temperature (150 °C) increased the catalytic activity and decreased the selectivity by yielding substantial amounts of undesired product (cyclohexanol) alongside with the desired product (cyclohexanone). Over 95% phenol conversion with excellent cyclohexanone selectivity was obtained less than nine hours of reaction using the polarized PVDF nanofibers as catalytic support structures.

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Electrospun carbon nanofibers containing Co-TiC nanoparticles-like superficial protrusions as a catalyst for H2 gas production from ammonia borane complex

Cited by 22 publications

References 65 publications

Catalytic and Photocatalytic Electrospun Nanofibers for Hydrogen Generation from Ammonia Borane Complex: A Review

Catalytic and Photocatalytic Electrospun Nanofibers for Hydrogen Generation from Ammonia Borane Complex: A Review

Electrospun Nanomaterials for Energy Applications: Recent Advances

Polarized Catalytic Polymer Nanofibers

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