Stable supercapacitor electrode based on two-dimensional high nucleus silver nano-clusters as a green energy source

2021 ◽  
Vol 50 (7) ◽  
pp. 2606-2615
Author(s):  
Jing Zhuge ◽  
Farzaneh Rouhani ◽  
Fahime Bigdeli ◽  
Xue-Mei Gao ◽  
Hamed Kaviani ◽  
...  
Keyword(s):  
Energy Source ◽  
Green Energy ◽  
Synthesis Methods ◽  
Two Dimensional ◽  
Supercapacitor Electrode ◽  
Nano Cluster

A novel 2D high nucleus silver nano-cluster was designed and synthesized by the combination of two synthesis methods (ultra-sonication and solvothermal) and was used as a supercapacitor electrode.

scholarly journals Emerging Technology for a Green, Sustainable Energy Promising Materials for Hydrogen Storage, from Nanotubes to Graphene—A Review

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2499
Author(s):  
Krzysztof Jastrzębski ◽  
Piotr Kula
Keyword(s):  
Energy Source ◽  
Hydrogen Storage ◽  
Mobile Applications ◽  
Emerging Technology ◽  
Green Energy ◽  
Point Of View ◽  
Energy Industry ◽  
Volumetric Density ◽  
Potential Use ◽  
Carbon Based

The energetic and climate crises should pose a challenge for scientists in finding solutions in the field of renewable, green energy sources. Throughout more than two decades, the search for new opportunities in the energy industry made it possible to observe the potential use of hydrogen as an energy source. One of the greatest challenges faced by scientists for the sake of its use as an energy source is designing safe, usable, reliable, and effective forms of hydrogen storage. Moreover, the manner in which hydrogen is to be stored is closely dependent on the potential use of this source of green energy. In stationary use, the aim is to achieve high volumetric density of the container. However, from the point of view of mobile applications, an extremely important aspect is the storage of hydrogen, using lightweight tanks of relatively high density. That is why, a focus of scientists has been put on the use of carbon-based materials and graphene as a perspective solution in the field of H2 storage. This review focuses on the comparison of different methods for hydrogen storage, mainly based on the carbon-based materials and focuses on efficiently using graphene and its different forms to serve a purpose in the future H2-based economy.

scholarly journals Recent advances in mode-locked fiber lasers based on two-dimensional materials

Nanophotonics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 2315-2340 ◽  
Author(s):  
Junli Wang ◽  
Xiaoli Wang ◽  
Jingjing Lei ◽  
Mengyuan Ma ◽  
Cong Wang ◽  
...  
Keyword(s):  
Fiber Lasers ◽  
2D Materials ◽  
Synthesis Methods ◽  
Two Dimensional ◽  
New Materials ◽  
Saturable Absorbers ◽  
Operating Wavelength ◽  
Recent Advances ◽  
Two Dimensional Materials ◽  
Diverse Mode

AbstractDue to the unique properties of two-dimensional (2D) materials, much attention has been paid to the exploration and application of 2D materials. In this review, we focus on the application of 2D materials in mode-locked fiber lasers. We summarize the synthesis methods for 2D materials, fiber integration with 2D materials and 2D materials based saturable absorbers. We discuss the performance of the diverse mode-locked fiber lasers in the typical operating wavelength such as 1, 1.5, 2 and 3 μm. Finally, a summary and outlook of the further applications of the new materials in mode-locked fiber lasers are presented.

Internal waves in a viscous atmosphere

1975 ◽  
Vol 72 (4) ◽  
pp. 773-786 ◽  
Author(s):  
W. L. Chang ◽  
T. N. Stevenson
Keyword(s):  
Energy Source ◽  
Incompressible Fluid ◽  
Internal Waves ◽  
Infinite Number ◽  
Similarity Solution ◽  
Small Amplitude ◽  
Horizontal Plane ◽  
Two Dimensional ◽  
The Waves ◽  
Isothermal Atmosphere

The way in which internal waves change in amplitude as they propagate through an incompressible fluid or an isothermal atmosphere is considered. A similarity solution for the small amplitude isolated viscous internal wave which is generated by a localized two-dimensional disturbance or energy source was given by Thomas & Stevenson (1972). It will be shown how summations or superpositions of this solution may be used to examine the behaviour of groups of internal waves. In particular the paper considers the waves produced by an infinite number of sources distributed in a horizontal plane such that they produce a sinusoidal velocity distribution. The results of this analysis lead to a new small perturbation solution of the linearized equations.

Preparation of a two-dimensional flexible MnO2/graphene thin film and its application in a supercapacitor

2016 ◽  
Vol 4 (27) ◽  
pp. 10618-10626 ◽  
Author(s):  
Zhimin Li ◽  
Yufeng An ◽  
Zhongai Hu ◽  
Ning An ◽  
Yadi Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Spin Coating ◽  
Hydrothermal Process ◽  
Graphene Film ◽  
Two Dimensional ◽  
Supercapacitor Electrode ◽  
Free Standing

A novel two-dimensional (2D) free standing and flexible MnO2/graphene film (MGF) supercapacitor electrode is successfully fabricated by a spin-coating and hydrothermal process.

scholarly journals Hierarchical structure N, O-co-doped porous carbon/carbon nanotube composite derived from coal for supercapacitors and CO2 capture

2020 ◽  
Vol 2 (2) ◽  
pp. 878-887 ◽  
Author(s):  
Jian Hao ◽  
Xiu Wang ◽  
Yanxia Wang ◽  
Xiaoyong Lai ◽  
Qingjie Guo ◽  
...  
Keyword(s):  
Energy Source ◽  
Carbon Nanotube ◽  
Energy Storage ◽  
Hierarchical Structure ◽  
Co2 Capture ◽  
Porous Carbon ◽  
Green Energy ◽  
Environmental Restoration ◽  
Carbon Nanotube Composite ◽  
Co Doped

The energy and environmental crises have forced us to search for a new green energy source and develop energy storage and environmental restoration technologies.

scholarly journals Enzyme Diversity of the Cellulolytic System Produced by Clostridium cellulolyticum Explored by Two-Dimensional Analysis: Identification of Seven Genes Encoding New Dockerin-Containing Proteins

2007 ◽  
Vol 189 (6) ◽  
pp. 2300-2309 ◽  
Author(s):  
Jean-Charles Blouzard ◽  
Caroline Bourgeois ◽  
Pascale de Philip ◽  
Odile Valette ◽  
Anne Bélaïch ◽  
...  
Keyword(s):  
Energy Source ◽  
Glycoside Hydrolase ◽  
Glycoside Hydrolases ◽  
Crystalline Cellulose ◽  
Two Dimensional ◽  
Specific Antibodies ◽  
Two Dimensional Electrophoresis ◽  
Clostridium Cellulolyticum ◽  
Genes Encoding ◽  
Dimensional Electrophoresis

ABSTRACT The enzyme diversity of the cellulolytic system produced by Clostridium cellulolyticum grown on crystalline cellulose as a sole carbon and energy source was explored by two-dimensional electrophoresis. The cellulolytic system of C. cellulolyticum is composed of at least 30 dockerin-containing proteins (designated cellulosomal proteins) and 30 noncellulosomal components. Most of the known cellulosomal proteins, including CipC, Cel48F, Cel8C, Cel9G, Cel9E, Man5K, Cel9M, and Cel5A, were identified by using two-dimensional Western blot analysis with specific antibodies, whereas Cel5N, Cel9J, and Cel44O were identified by using N-terminal sequencing. Unknown enzymes having carboxymethyl cellulase or xylanase activities were detected by zymogram analysis of two-dimensional gels. Some of these enzymes were identified by N-terminal sequencing as homologs of proteins listed in the NCBI database. Using Trap-Dock PCR and DNA walking, seven genes encoding new dockerin-containing proteins were cloned and sequenced. Some of these genes are clustered. Enzymes encoded by these genes belong to glycoside hydrolase families GH2, GH9, GH10, GH26, GH27, and GH59. Except for members of family GH9, which contains only cellulases, the new modular glycoside hydrolases discovered in this work could be involved in the degradation of different hemicellulosic substrates, such as xylan or galactomannan.

scholarly journals Recent Advances in MXene Nanocomposite-Based Biosensors

Biosensors ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 185 ◽  
Author(s):  
Jinho Yoon ◽  
Minkyu Shin ◽  
Joungpyo Lim ◽  
Ji-Young Lee ◽  
Jeong-Woo Choi
Keyword(s):  
Inorganic Compounds ◽  
High Sensitivity ◽  
High Conductivity ◽  
Optical Biosensors ◽  
Electrochemical Biosensors ◽  
Synthesis Methods ◽  
Two Dimensional ◽  
Recent Advances ◽  
Sensitivity And Selectivity

The development of advanced biosensors with high sensitivity and selectivity is one of the most demanded concerns in the field of biosensors. To meet this requirement, up until now, numerous nanomaterials have been introduced to develop biosensors for achieving high sensitivity and selectivity. Among the latest nanomaterials attracting attention, MXene is one of the best materials for the development of biosensors because of its various superior properties. MXenes are two-dimensional inorganic compounds with few atomic layers that possess excellent characteristics including high conductivity and superior fluorescent, optical, and plasmonic properties. In this review, advanced biosensors developed on the basis of the MXene nanocomposite are discussed with the selective overview of recently reported studies. For this, introduction of the MXene including the definition, synthesis methods, and its properties are discussed. Next, MXene-based electrochemical biosensors and MXene-based fluorescent/optical biosensors are provided, which are developed on the basis of the exceptional properties of the MXene nanocomposite. This review will suggest the direction for use of the Mxene nanocomposite to develop advanced biosensors with high sensitivity and selectivity.

scholarly journals Two-Dimensional Tellurium: Progress, Challenges, and Prospects

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhe Shi ◽  
Rui Cao ◽  
Karim Khan ◽  
Ayesha Khan Tareen ◽  
Xiaosong Liu ◽  
...  
Keyword(s):  
Field Effect Transistors ◽  
2D Materials ◽  
Environmental Stability ◽  
Synthesis Methods ◽  
Two Dimensional ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Energy Harvesting Devices ◽  
Further Development ◽  
Piezoelectric Devices

AbstractSince the successful fabrication of two-dimensional (2D) tellurium (Te) in 2017, its fascinating properties including a thickness dependence bandgap, environmental stability, piezoelectric effect, high carrier mobility, and photoresponse among others show great potential for various applications. These include photodetectors, field-effect transistors, piezoelectric devices, modulators, and energy harvesting devices. However, as a new member of the 2D material family, much less known is about 2D Te compared to other 2D materials. Motivated by this lack of knowledge, we review the recent progress of research into 2D Te nanoflakes. Firstly, we introduce the background and motivation of this review. Then, the crystal structures and synthesis methods are presented, followed by an introduction to their physical properties and applications. Finally, the challenges and further development directions are summarized. We believe that milestone investigations of 2D Te nanoflakes will emerge soon, which will bring about great industrial revelations in 2D materials-based nanodevice commercialization.

Two-dimensional vanadium carbide (V2CT ) MXene as supercapacitor electrode in seawater electrolyte

2020 ◽  
Vol 31 (4) ◽  
pp. 984-987 ◽  
Author(s):  
Hongtian He ◽  
Qixun Xia ◽  
Bingxin Wang ◽  
Libo Wang ◽  
Qianku Hu ◽  
...  
Keyword(s):  
Vanadium Carbide ◽  
Two Dimensional ◽  
Supercapacitor Electrode
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