Microwave plasma-induced graphene-sheet fibers from waste coffee grounds

2015 ◽  
Vol 3 (28) ◽  
pp. 14545-14549 ◽  
Author(s):  
Zhipeng Wang ◽  
Hironori Ogata ◽  
Shingo Morimoto ◽  
Masatsugu Fujishige ◽  
Kenji Takeuchi ◽  
...  
Keyword(s):  
Graphene Sheet ◽  
Microwave Plasma ◽  
Excellent Performance ◽  
Electrochemical Conversion ◽  
Coffee Grounds ◽  
Potential Applications ◽  
And Storage

Microwave plasma-induced graphene-sheet fibers from waste coffee grounds showed potential applications for electrochemical conversion and storage with excellent performance.

A systematic computational investigations of water splitting and N2 reduction reaction performances of monolayer MBenes

2021 ◽  
Author(s):  
Yuwen Cheng ◽  
Jisheng Mo ◽  
Yongtao Li ◽  
Yan Song ◽  
Yumin Zhang
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Water Splitting ◽  
Density Functional ◽  
Reduction Reaction ◽  
Functional Theory ◽  
Energy Conversion And Storage ◽  
Metal Borides ◽  
Potential Applications ◽  
And Storage

Recently, transition metal borides (MBenes, analogous to MXenes) have been attracted interest due to their potential applications in energy conversion and storage. In this work, we performed density functional theory...

A New Application of Hollow Nanosilica Added to Modified Polypropylene to Prepare Nanocomposite Films

NANO ◽  
2021 ◽  
pp. 2150117
Author(s):  
Xu Li ◽  
Ying-Jun Zhang ◽  
Chi-Hui Tsou ◽  
Yi-Hua Wen ◽  
Chin-San Wu ◽  
...  
Keyword(s):  
Food Packaging ◽  
Nanocomposite Films ◽  
X Ray Diffraction ◽  
Hollow Silica ◽  
Barrier Materials ◽  
Water Vapor Barrier ◽  
Potential Applications ◽  
And Storage ◽  
Food Packaging Films ◽  
Thermal Stability Of

Since the inception of research on hollow silica, the use of hollow nanosilica (HNS) as additives in barrier materials has not been reported. In this study, we evaluated the capacity of HNS as an additive in modified polypropylene (MPP). According to X-ray diffraction (XRD), the crystallinity, tensile strength, and thermal stability of MPP/HNS nanocomposite containing 0.1[Formula: see text]phr HNS approached maximum values. Moreover, the nanocomposite had the best performance in terms of water vapor barrier and oxygen resistance. The reasons for the improvement in barrier performance were discussed. Scanning electron microscopy revealed that HNS at a low content dispersed well in MPP. In conclusion, the synthesized HNS can be used as an additive in barrier materials, and it would have potential applications in the fields of food packaging films and storage containers or materials.

Polysaccharides from new zealand native plants: A review of their structure, properties, and potential applications

2020 ◽  
Author(s):  
Susan Carnachan ◽  
Tracey Bell ◽  
Simon Hinkley ◽  
Ian Sims
Keyword(s):  
New Zealand ◽  
Water Soluble ◽  
Composition And Structure ◽  
Structures And Properties ◽  
Wide Range ◽  
Potential Applications ◽  
Food Applications ◽  
Year 2000 ◽  
And Storage ◽  
Structure Properties

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Water-soluble, non-starch polysaccharides fromplants are used commercially in a wide range of food and non-food applications. The increasing range of applications for natural polysaccharides means that there is growing demand for plant-derived polysaccharides with different functionalities. The geographical isolation of New Zealand and its unique flora presents opportunities to discover new polysaccharides with novel properties for a range of applications. This review brings together data published since the year 2000 on the composition and structure of exudate gums, mucilages, and storage polysaccharides extracted from New Zealand endemic land plants. The structures and properties of these polysaccharides are compared with the structures of similar polysaccharides from other plants. The current commercial use of these polysaccharides is reviewed and their potential for further exploitation discussed.

Polysaccharides from new zealand native plants: A review of their structure, properties, and potential applications

2020 ◽  
Author(s):  
Susan Carnachan ◽  
Tracey Bell ◽  
Simon Hinkley ◽  
Ian Sims
Keyword(s):  
New Zealand ◽  
Water Soluble ◽  
Composition And Structure ◽  
Structures And Properties ◽  
Wide Range ◽  
Potential Applications ◽  
Food Applications ◽  
Year 2000 ◽  
And Storage ◽  
Structure Properties

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Water-soluble, non-starch polysaccharides fromplants are used commercially in a wide range of food and non-food applications. The increasing range of applications for natural polysaccharides means that there is growing demand for plant-derived polysaccharides with different functionalities. The geographical isolation of New Zealand and its unique flora presents opportunities to discover new polysaccharides with novel properties for a range of applications. This review brings together data published since the year 2000 on the composition and structure of exudate gums, mucilages, and storage polysaccharides extracted from New Zealand endemic land plants. The structures and properties of these polysaccharides are compared with the structures of similar polysaccharides from other plants. The current commercial use of these polysaccharides is reviewed and their potential for further exploitation discussed.

Fiber-based multifunctional nickel phosphide electrodes for flexible energy conversion and storage

2016 ◽  
Vol 4 (24) ◽  
pp. 9691-9699 ◽  
Author(s):  
Zheye Zhang ◽  
Shasha Liu ◽  
Jian Xiao ◽  
Shuai Wang
Keyword(s):  
Chemical Compositions ◽  
Nickel Phosphide ◽  
Nanoparticle Arrays ◽  
Excellent Performance ◽  
Nickel Nanoparticle ◽  
Hierarchically Porous Structure ◽  
Commercial Carbon ◽  
Energy Conversion And Storage ◽  
And Storage ◽  
Electrodeposition Of Nickel

Fiber-based multifunctional nickel phosphide electrodes have been successfully prepared by facile electrodeposition of nickel nanoparticle arrays on a commercial carbon fiber followed by low-temperature phosphidation. With the synergistic effect from the hierarchically porous structure and chemical compositions, the resultant electrodes exhibit excellent performance for overall water-splitting electrocatalysis and flexible supercapacitors.

AN INDEX THEOREM FOR GRAPHENE

2007 ◽  
Vol 21 (30) ◽  
pp. 5113-5120 ◽  
Author(s):  
JIANNIS K. PACHOS ◽  
MICHAEL STONE
Keyword(s):  
Graphene Sheet ◽  
Good Description ◽  
Index Theorem ◽  
Continuous Limit ◽  
Zero Energy ◽  
Arbitrary Geometry ◽  
Numerical Studies ◽  
Topological Quantum ◽  
Potential Applications ◽  
Topological Quantum Computation

We consider a graphene sheet folded in an arbitrary geometry, compact or with nanotube-like open boundaries. In the continuous limit, the Hamiltonian takes the form of the Dirac operator, which provides a good description of the low energy spectrum of the lattice system. We derive an index theorem that relates the zero energy modes of the graphene sheet with the topology of the lattice. The result coincides with analytical and numerical studies for the known cases of fullerene molecules and carbon nanotubes, and it extends to more complicated molecules. Potential applications to topological quantum computation are discussed.

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