Metal/metal oxide decorated graphene synthesis and application as supercapacitor: a review

Nandi, Debabrata; Mohan, Velram Balaji; Bhowmick, Anil K.; Bhattacharyya, Debes

doi:10.1007/s10853-020-04475-z

Cited by 119 publications

(36 citation statements)

References 108 publications

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“… 5 So, it is preferable to make composite by reinforcing agents to attain several improved properties. 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 …”

Section: Introductionmentioning

confidence: 99%

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Polymer composites from natural fibers and recycled waste surgical masks during COVID‐19 pandemic

et al. 2022

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The crucial role of face masks is highlighted in our day‐to‐day life during the COVID‐19 pandemic. Polypropylene (PP)‐based disposable face masks are widely used to hold back viral transmission. The discarded masks can create a huge burden of contamination on the environment. The purpose of this work is to recycle and reuse discarded masks to reduce environmental pollution. A simple and innovative technique to recycle surgical masks into composites of higher mechanical strength and antimicrobial properties is explored to reuse in packaging materials and cutleries. The surgical masks composed of PP fibers are recycled to use as a matrix material to reinforce with sisal and hemp fibers. The hot compression molding technique is used to sandwich the PP masks with natural fibers. The tensile strength of the composites is remarkably increased by 197% and 305% for sisal fiber composites and hemp fiber composites, respectively. The tensile elongation also increased to 574% for sisal fiber composites. The resulting composites exhibit notable antimicrobial properties against Staphylococcus aureus , a pathogen responsible for common staphylococcal food poisoning. The composites are found to be suitable to use as food contact cutleries and packaging materials.

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“… 5 So, it is preferable to make composite by reinforcing agents to attain several improved properties. 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 …”

Section: Introductionmentioning

confidence: 99%

“…Commonly, it is tough as well as costly to make identical goods as original ones through recycling 5 . So, it is preferable to make composite by reinforcing agents to attain several improved properties 6–18 …”

Section: Introductionmentioning

confidence: 99%

Polymer composites from natural fibers and recycled waste surgical masks during COVID‐19 pandemic

et al. 2022

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“…EDLCs produce a charge separation at the boundary between the electrode and electrolyte to store energy [8]. In contrast, pseudocapacitors rely on fast faradic reactions at the electrode surface to store energy [9]. Depending on the electrode material, supercapacitors primarily exhibit electric double-layer (EDL) or pseudocapacitive characteristics or a combination of both.…”

Section: Introductionmentioning

confidence: 99%

Recent Development in Vanadium Pentoxide and Carbon Hybrid Active Materials for Energy Storage Devices

et al. 2021

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With the increasing energy demand for portable electronics, electric vehicles, and green energy storage solutions, the development of high-performance supercapacitors has been at the forefront of energy storage and conversion research. In the past decade, many scientific publications have been dedicated to designing hybrid electrode materials composed of vanadium pentoxide (V2O5) and carbon nanomaterials to bridge the gap in energy and power of traditional batteries and capacitors. V2O5 is a promising electrode material owing to its natural abundance, nontoxicity, and high capacitive potential. However, bulk V2O5 is limited by poor conductivity, low porosity, and dissolution during charge/discharge cycles. To overcome the limitations of V2O5, many researchers have incorporated common carbon nanostructures such as reduced graphene oxides, carbon nanotubes, carbon nanofibers, and other carbon moieties into V2O5. The carbon components facilitate electron mobility and act as porous templates for V2O5 nucleation with an enhanced surface area as well as interconnected surface morphology and structural stability. This review discusses the development of various V2O5/carbon hybrid materials, focusing on the effects of different synthesis methods, V2O5/carbon compositions, and physical treatment strategies on the structure and electrochemical performance of the composite material as promising supercapacitor electrodes.

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“…In addition, the modified surface properties of doped carbon nanomaterials have been widely exploited for nanocomposite synthesis. Controlled surface energy and enhanced chemical reactivity of the carbonous surface resulting from heteroatom doping facilitate a straightforward hybridization with various heteroelemental materials, including monomers [ 5 ], polymers [ 6 ], metals [ 7 ] and metal oxides [ 8 ]. In this regard, intensive research efforts have been made to develop efficient methods for the incorporation of heteroatoms into the hexagonal graphene lattice, such as covalent chemistry or thermal treatment with heteroatom sources [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

N-Dopant-Mediated Growth of Metal Oxide Nanoparticles on Carbon Nanotubes

Lee

Lim

et al. 2021

Nanomaterials

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Metal oxide nanoparticles supported on heteroatom-doped graphitic surfaces have been pursued for several decades for a wide spectrum of applications. Despite extensive research on functional metal oxide nanoparticle/doped carbon nanomaterial hybrids, the role of the heteroatom dopant in the hybridization process of doped carbon nanomaterials has been overlooked. Here, the direct growth of MnOx and RuOx nanoparticles in nitrogen (N)-doped sites of carbon nanotubes (NCNTs) is presented. The quaternary nitrogen (NQ) sites of CNTs actively participate in the nucleation and growth of the metal nanoparticles. The evenly distributed NQ nucleation sites mediate the generation of uniformly dispersed <10 nm diameter MnOx and RuOx nanoparticles, directly decorated on NCNT surfaces. The electrochemical performance of the resultant hybridized materials was evaluated using cyclic voltammetry. This novel hybridization method using the dopant-mediated nucleation and growth of metal oxides suggests ways that heteroatom dopants can be utilized to optimize the structure, interface and corresponding properties of graphitic carbon-based hybrid materials.

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Metal/metal oxide decorated graphene synthesis and application as supercapacitor: a review

Cited by 119 publications

References 108 publications

Polymer composites from natural fibers and recycled waste surgical masks during COVID‐19 pandemic

Polymer composites from natural fibers and recycled waste surgical masks during COVID‐19 pandemic

Recent Development in Vanadium Pentoxide and Carbon Hybrid Active Materials for Energy Storage Devices

N-Dopant-Mediated Growth of Metal Oxide Nanoparticles on Carbon Nanotubes

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