A Summary of C2N Theoretical Research on Two-Dimensional Porous Materials

2021 ◽  
Vol 09 (03) ◽  
pp. 71-79
Author(s):  
程程 孔
Keyword(s):  
Porous Materials ◽  
Theoretical Research ◽  
Two Dimensional

Two-Dimensional Model for Simulating Shock-Wave Interaction with Rigid Porous Materials

AIAA Journal ◽  
2003 ◽  
Vol 41 (4) ◽  
pp. 663-673 ◽  
Author(s):  
G. Malamud ◽  
D. Levi-Hevroni ◽  
A. Levy
Keyword(s):  
Shock Wave ◽  
Porous Materials ◽  
Wave Interaction ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Shock Wave Interaction ◽  
Two Dimensional Model

scholarly journals The Hyperspherical Functions of a Derivative

2010 ◽  
Vol 2010 ◽  
pp. 1-17
Author(s):  
Nenad Cakic ◽  
Duško Letic ◽  
Branko Davidovic
Keyword(s):  
Numerical Experiment ◽  
Degrees Of Freedom ◽  
Recurrent Relation ◽  
Theoretical Research ◽  
Two Dimensional ◽  
The Third ◽  
Graphical Presentation

We present the results of theoretical research of the generalized hypersherical function (HS) by generalizing two known functions related to the sphere hypersurface and hypervolume and the recurrent relation between them. By introducing two-dimensional degrees of freedomkandn(and the third, radiusr), we develop the derivative functions for all three arguments and the possibilities of their use. The symbolical evolution, numerical experiment, and graphical presentation of functions are realized using the Mathcad Professional and Mathematica softwares.

Theoretical research on a two-dimensional phoxonic crystal liquid sensor by utilizing surface optical and acoustic waves

2016 ◽  
Vol 242 ◽  
pp. 123-131 ◽  
Author(s):  
Tian-Xue Ma ◽  
Yue-Sheng Wang ◽  
Chuanzeng Zhang ◽  
Xiao-Xing Su
Keyword(s):  
Acoustic Waves ◽  
Theoretical Research ◽  
Two Dimensional ◽  
Surface Optical

A universal model for predicting the effective shear modulus of two-dimensional porous materials

2017 ◽  
Vol 110 ◽  
pp. 59-67 ◽  
Author(s):  
Zaoyang Guo ◽  
Lei Wang ◽  
Yang Chen ◽  
Lingli Zheng ◽  
Zhenjun Yang ◽  
...  
Keyword(s):  
Shear Modulus ◽  
Porous Materials ◽  
Universal Model ◽  
Two Dimensional ◽  
Effective Shear Modulus

Novel Two‐Dimensional Porous Materials for Electrochemical Energy Storage: A Minireview

2020 ◽  
Vol 20 (9) ◽  
pp. 922-935
Author(s):  
Lei Mao ◽  
Xun Zhao ◽  
Huayu Wang ◽  
Hong Xu ◽  
Li Xie ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Materials ◽  
Electrochemical Energy Storage ◽  
Two Dimensional ◽  
Electrochemical Energy

scholarly journals Emerging 2D Materials and Their Van Der Waals Heterostructures

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 579 ◽  
Author(s):  
Antonio Di Bartolomeo
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
State Of The Art ◽  
2D Materials ◽  
Van Der Waals ◽  
Functional Materials ◽  
Building Blocks ◽  
Theoretical Research ◽  
Two Dimensional ◽  
Tremendous Amount

Two-dimensional (2D) materials and their van der Waals heterojunctions offer the opportunity to combine layers with different properties as the building blocks to engineer new functional materials for high-performance devices, sensors, and water-splitting photocatalysts. A tremendous amount of work has been done thus far to isolate or synthesize new 2D materials as well as to form new heterostructures and investigate their chemical and physical properties. This article collection covers state-of-the-art experimental, numerical, and theoretical research on 2D materials and on their van der Waals heterojunctions for applications in electronics, optoelectronics, and energy generation.

Frequency characteristics of defect states in a two-dimensional phononic crystal with slit structure

2016 ◽  
Vol 30 (06) ◽  
pp. 1650025 ◽  
Author(s):  
X. P. Wang ◽  
P. Jiang ◽  
T. N. Chen ◽  
K. P. Yu
Keyword(s):  
Band Gap ◽  
Power Transmission ◽  
Phononic Crystal ◽  
Slit Width ◽  
Band Gaps ◽  
Theoretical Research ◽  
Two Dimensional ◽  
Defect States ◽  
Band Frequency ◽  
Practical Applications

In this paper, the defect state and band gap characteristics in a two-dimensional slit structure phononic crystal, consisting of slotted steel tubes embedded in an air matrix, are investigated theoretically and experimentally. Using the finite element method and supercell technique, the dispersion relationships and power transmission spectra of the slit structures are calculated. The vibration modes of the band gap edges are analyzed to clarify the mechanism of the generation of the band gaps. Additionally, the influence of the slit width on the band gaps in slit structure is investigated. The slit width was found to influence the band gaps; this is critical to understand for practical applications. Based on this finding, a method to form defect scatterers by changing the slit width of a single central scatterer, or one row of scatterers, in the perfect PC was developed. Defect bands can be induced by creating defects inside the original complete band gaps. The frequency can then be tuned by changing the slit width of defect scatterers. Meanwhile, the relationship between point defect and line defect is investigated. Finally, we verify the results of theoretical research by experiments. These results will help in fabricating devices such as acoustic filters and waveguides whose band frequency can be modulated.

scholarly journals MAGNETISM IN GRAPHENE SYSTEMS

NANO ◽  
2008 ◽  
Vol 03 (06) ◽  
pp. 433-442 ◽  
Author(s):  
ERJUN KAN ◽  
ZHENYU LI ◽  
JINLONG YANG
Keyword(s):  
Electronic Structures ◽  
Materials Science ◽  
Graphene Nanoribbons ◽  
Localized States ◽  
Theoretical Research ◽  
Two Dimensional ◽  
Spin Filter ◽  
Comprehensive Review ◽  
One Dimensional ◽  
Half Metal

Graphene has attracted great interest in materials science, owing to its novel electronic structures. Recently, magnetism discovered in graphene-based systems has opened up the possibility of their spintronics application. This paper provides a comprehensive review of the magnetic behaviors and electronic structures of graphene systems, including two-dimensional graphene, one-dimensional graphene nanoribbons, and zero-dimensional graphene nanoclusters. Theoretical research suggests that such metal-free magnetism mainly comes from the localized states or edges states. By applying an external electric field, or by chemical modification, we can turn the zigzag nanoribbon systems into half metal, thus obtaining a perfect spin filter.

scholarly journals Direct observation of the Mottness and p-d orbital hybridization in epitaxial monolayer α-RuCl3

2021 ◽  
Author(s):  
Zhongjie Wang ◽  
Lu Liu ◽  
Haoran Zheng ◽  
Meng Zhao ◽  
Ke Yang ◽  
...  
Keyword(s):  
Density Functional ◽  
Pyrolytic Graphite ◽  
Density Functional Theory Calculations ◽  
Quantum Spin ◽  
Bulk Phase ◽  
Theoretical Research ◽  
Graphite Substrate ◽  
Scanning Tunneling ◽  
Two Dimensional ◽  
Tunneling Microscopy

Abstract α-RuCl3, with abundant studies in its bulk phase, has shown the promising potential to approach the two-dimensional Kitaev honeycomb model and to realize the consequential quantum spin liquids. In this material, some ingredients spark off the hunting of quantum spin liquid states: the localized magnetic moments on each Ru3+ ion guaranteed by the Mottness, the Kitaev-type interaction originating from the superexchange path over the p-d bonds, and the nearly two-dimensional nature of the van der Waals coupled honeycomb layers. Here, we worked out the growth art of α-RuCl3 monolayer on highly oriented pyrolytic graphite substrate for the first time, and then studied its electronic structure, particularly the delicate orbital occupations. Through scanning tunneling microscopy and spectroscopy study, the bonding configurations are justified by the features of pronounced t2g-pπ and eg-pσ hybridization, and the Mott nature is unveiled by an ~ 0.6 eV full gap at the Fermi level located in the t2g-pπ level. Our experimental results agree well with the density functional theory calculations of the monolayer system. In accordance with previous theoretical research, the epitaxial monolayer α-RuCl3 system holds high tunability comparing to its bulk phase and provides a novel platform to explore the Kitaev physics.

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