scholarly journals Research Progress of MoS2 Composite rGO Material in Gas Sensor

2021 ◽  
Vol 267 ◽  
pp. 02048
Author(s):  
Jiang Huaning ◽  
Wang Huaizhang ◽  
Liang Ting
Keyword(s):  
Gas Sensors ◽  
Materials Science ◽  
Single Layer ◽  
Reference Value ◽  
Research Progress ◽  
Single Layer Graphene ◽  
Two Dimensional ◽  
Preparation Methods ◽  
Two Dimensional Materials ◽  
Materials Used

Since the successful preparation of single-layer graphene in 2004, two-dimensional materials have gradually become one of the research hotspots in the field of materials science. However, due to the inevitable defects of intrinsic two-dimensional materials, researchers began to explore how to obtain more excellent two-dimensional materials. In this paper, the basic properties, preparation methods and application in gas sensors of MoS2/rGO composites are reviewed. This paper has a certain reference value for the research of two-dimensional materials used in gas sensors.

Research progress of gas sensors based on two-dimensional materials

2018 ◽  
Vol 35 (3) ◽  
pp. 221
Author(s):  
Han ZHANG ◽  
Jifei ZOU ◽  
Shaojuan LUO ◽  
Yang HUANG ◽  
Dianyuan FAN
Keyword(s):  
Gas Sensors ◽  
Research Progress ◽  
Two Dimensional ◽  
Two Dimensional Materials

scholarly journals Electrical Properties of Two-Dimensional Materials Used in Gas Sensors

Sensors ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 1295 ◽  
Author(s):  
Rafael Vargas-Bernal
Keyword(s):  
Electrical Properties ◽  
Crystalline Structure ◽  
Gas Sensors ◽  
Electronic Band Structure ◽  
Hexagonal Boron Nitride ◽  
Two Dimensional ◽  
Dispersion Energy ◽  
Electronic Band ◽  
Two Dimensional Materials ◽  
Materials Used

In the search for gas sensing materials, two-dimensional materials offer the possibility of designing sensors capable of tuning the electronic band structure by controlling their thickness, quantity of dopants, alloying between different materials, vertical stacking, and the presence of gases. Through materials engineering it is feasible to study the electrical properties of two-dimensional materials which are directly related to their crystalline structure, first Brillouin zone, and dispersion energy, the latter estimated through the tight-binding model. A review of the electrical properties directly related to the crystalline structure of these materials is made in this article for the two-dimensional materials used in the design of gas sensors. It was found that most 2D sensing materials have a hexagonal crystalline structure, although some materials have monoclinic, orthorhombic and triclinic structures. Through the simulation of the mathematical models of the dispersion energy, two-dimensional and three-dimensional electronic band structures were predicted for graphene, hexagonal boron nitride (h-BN) and silicene, which must be known before designing a gas sensor.

scholarly journals Synthesis of single layer graphene on Cu(111) by C60 supersonic molecular beam epitaxy

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 37982-37993 ◽  
Author(s):  
Roberta Tatti ◽  
Lucrezia Aversa ◽  
Roberto Verucchi ◽  
Emanuele Cavaliere ◽  
Giovanni Garberoglio ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Molecular Beam ◽  
Materials Science ◽  
Single Layer ◽  
Molecular Beams ◽  
Single Layer Graphene ◽  
Physical Processes ◽  
Supersonic Molecular Beam ◽  
Layer Graphene ◽  
High Kinetic Energy

High kinetic energy impacts between inorganic surfaces and molecular beams seeded by organics represent a fundamental tool in materials science, particularly when they activate chemical–physical processes leading to nanocrystals' growth.

scholarly journals Two-dimensional based hybrid materials for photocatalytic conversion of carbon dioxide into hydrocarbon fuels: A mini review

2021 ◽  
Vol 22 (1) ◽  
pp. 132-140
Author(s):  
Kannan Karthik ◽  
Devi Radhika ◽  
D. Gnanasangeetha ◽  
K. Gurushankar ◽  
Md Enamul Hoque
Keyword(s):  
Carbon Dioxide ◽  
Metal Oxide ◽  
Hybrid Materials ◽  
Environmental Sustainability ◽  
Materials Science ◽  
Two Dimensional ◽  
Carbon Dioxide Conversion ◽  
Two Dimensional Materials ◽  
The Impact ◽  
Material Composite

Carbon dioxide conversion to chemicals and fuels based on two-dimensional based hybrid materials will present a thorough discussion of the physics, chemistry, and electrochemical science behind the new and important area of materials science, energy, and environmental sustainability. The tremendous opportunities for two-dimensional based hybrid materials in the photocatalytic carbon dioxide conversion field come up from their huge number of applications. In the carbon dioxide conversion field, nanostructured metal oxide with a two-dimensional material composite system must meet assured design and functional criteria, as well as electrical and mechanical properties. The whole content of the proposed review is anticipated to build on what has been learned in elementary courses about synthesizing two-dimensional nanomaterials, metal oxide with composites, carbon dioxide conversion requirements, uses of two-dimensional materials with nanocomposites in carbon dioxide conversion as well as fuels and the major mechanisms involved during each application. The impact of hybrid materials and synergistic composite mixtures which are used extensively or show promising outcomes in the photocatalytic carbon dioxide conversion field will also be discussed.

The latest development of CoOOH two-dimensional materials used as OER catalysts

2020 ◽  
Vol 56 (98) ◽  
pp. 15387-15405
Author(s):  
Shengqi Zhang ◽  
Tao Yu ◽  
Hui Wen ◽  
Zhiyuan Ni ◽  
Yan He ◽  
...  
Keyword(s):  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Two Dimensional ◽  
Structure Activity ◽  
Two Dimensional Materials ◽  
Materials Used ◽  
Relationship Of

The influence of the structure–activity relationship of the two-dimensional CoOOH catalyst on the OER is analyzed from different angles.

scholarly journals Ab Initio Calculations of Ultrashort Carrier Dynamics in Two-Dimensional Materials: Valley Depolarization in Single-Layer WSe2

Nano Letters ◽  
2017 ◽  
Vol 17 (8) ◽  
pp. 4549-4555 ◽  
Author(s):  
Alejandro Molina-Sánchez ◽  
Davide Sangalli ◽  
Ludger Wirtz ◽  
Andrea Marini
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Single Layer ◽  
Carrier Dynamics ◽  
Two Dimensional ◽  
Two Dimensional Materials

scholarly journals Theoretical Prediction of the Structural and Electronic Properties of a Single Layer Graphene-like Two-dimensional Janus GaInSTe

2021 ◽  
Vol 37 (2) ◽  
Author(s):  
Nguyen Van Chuong ◽  
Nguyen Ngoc Hieu ◽  
Nguyen Van Hieu
Keyword(s):  
Electric Field ◽  
Band Gap ◽  
Electronic Properties ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Two Dimensional ◽  
Direct Band Gap ◽  
Structural And Electronic Properties ◽  
Direct Band ◽  
New Type

This paper constructs a new type of two-dimensional graphene-like Janus GaInSTe monolayer and systematically investigates its structural and electronic properties as well as the effect of external electric field using first-principles calculations. In the ground state, Janus GaInSTe monolayer is dynamically stable with no imaginary frequencies in its phonon spectrum and possesses a direct band gap semiconductor. The band gap of Janus GaInSTe monolayer can be tuned by applying an electric field, which leads the different transitions from semiconductor to metal, and from indirect to direct band gap. These findings show a great potential application of Janus GaInSTe material for designing next-generation devices.

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