Two-dimensional metallic carbon allotrope with multiple rings for ion batteries

2021 ◽  
Author(s):  
Zishuang Cheng ◽  
Xiaoming Zhang ◽  
Hui Zhang ◽  
Jianbo Gao ◽  
Heyan Liu ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Diffusion Rate ◽  
Two Dimensional ◽  
Carbon Allotrope ◽  
Carbon Allotropes ◽  
Multiple Rings

Two-dimensional (2-D) materials, especially carbon allotropes, have larger storage capacity and faster diffusion rate due to their unique structures and are usually used in ion batteries. Recently, a new stable...

Twin T-graphene: a new semiconducting 2D carbon allotrope

2020 ◽  
Vol 22 (18) ◽  
pp. 10286-10294 ◽  
Author(s):  
Debaprem Bhattacharya ◽  
Debnarayan Jana
Keyword(s):  
Two Dimensional ◽  
Carbon Allotrope ◽  
Carbon Allotropes ◽  
Significant Interest

Two dimensional carbon allotropes with multiple atomic layers have attracted significant interest recently.

A new two-dimensional all-sp3 carbon allotrope with indirect band gap and superior carrier mobility

2021 ◽  
Author(s):  
Xing Yang ◽  
Yuwei Wang ◽  
Ruining Xiao ◽  
Tao Wen ◽  
Yulin Shen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Band Gap ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
Carbon Allotrope ◽  
Carbon Allotropes ◽  
Indirect Band Gap

The success of fascinating graphene has motivated much interest in exploiting new two-dimensional (2D) carbon allotropes with excellent electronic and mechanical properties such as graphdiyne and penta-graphene. However, there is...

Two dimensional Dirac carbon allotropes from graphene

Nanoscale ◽  
2014 ◽  
Vol 6 (2) ◽  
pp. 1113-1118 ◽  
Author(s):  
Li-Chun Xu ◽  
Ru-Zhi Wang ◽  
Mao-Sheng Miao ◽  
Xiao-Lin Wei ◽  
Yuan-Ping Chen ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Carbon Allotropes

scholarly journals PAI-graphene: A new topological semimetallic two-dimensional carbon allotrope with highly tunable anisotropic Dirac cones

Carbon ◽  
2020 ◽  
Vol 170 ◽  
pp. 477-486 ◽  
Author(s):  
Xin Chen ◽  
Adrien Bouhon ◽  
Linyang Li ◽  
François M. Peeters ◽  
Biplab Sanyal
Keyword(s):  
Two Dimensional ◽  
Carbon Allotrope

scholarly journals Chirality in curved polyaromatic systems

2017 ◽  
Vol 46 (6) ◽  
pp. 1643-1660 ◽  
Author(s):  
Michel Rickhaus ◽  
Marcel Mayor ◽  
Michal Juríček
Keyword(s):  
Gaussian Curvature ◽  
Carbon Allotrope ◽  
Carbon Allotropes ◽  
Negative Gaussian Curvature ◽  
Helical Chirality

Chiral non-planar polyaromatic systems that display zero, positive or negative Gaussian curvature are analysed and their potential to ‘encode’ chirality of larger sp2-carbon allotropes is evaluated. Shown is a hypothetical peanut-shaped carbon allotrope, where helical chirality results from the interplay of various curvature types.

scholarly journals Nanoribbons with Non-Alternant Topology from Fusion of Polyazulene: Carbon Allotropes Beyond Graphene

2019 ◽  
Author(s):  
Qitang Fan ◽  
Daniel Martin-Jimenez ◽  
Daniel Ebeling ◽  
Claudio K. Krug ◽  
Lea Brechmann ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Low Temperature ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Scanning Probe ◽  
Two Dimensional ◽  
Reaction Step ◽  
Functional Theory ◽  
Carbon Allotropes ◽  
Temperature Scanning

Various two-dimensional (2D) carbon allotropes with non-alternant topologies, such as pentaheptites and phagraphene, have been proposed. Predictions indicate that these metastable carbon polymorphs, which contain odd-numbered rings, possess unusual (opto)electronic properties. However, none of these materials has been achieved experimentally due to synthetic challenges. In this work, by using on-surface synthesis, nanoribbons of the non-alternant graphene allotropes, phagraphene and tetra-penta-hepta(TPH)-graphene have been obtained by dehydrogenative C-C coupling of 2,6-polyazulene chains. These chains were formed in a preceding reaction step via on-surface Ullmann coupling of 2,6-dibromoazulene. Low-temperature scanning probe microscopies with CO-functionalized tip and density functional theory calculations have been used to elucidate their structural properties. <br>

scholarly journals Carbon Allotrope-Based Optical Fibers for Environmental and Biological Sensing: A Review

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 2046 ◽  
Author(s):  
Stephanie Hui Kit Yap ◽  
Kok Ken Chan ◽  
Swee Chuan Tjin ◽  
Ken-Tye Yong
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
High Sensitivity ◽  
Optical Fiber Sensors ◽  
Functional Coating ◽  
Fiber Sensors ◽  
Carbon Allotrope ◽  
Carbon Allotropes ◽  
Sensing Technology ◽  
Wide Range

Recently, carbon allotropes have received tremendous research interest and paved a new avenue for optical fiber sensing technology. Carbon allotropes exhibit unique sensing properties such as large surface to volume ratios, biocompatibility, and they can serve as molecule enrichers. Meanwhile, optical fibers possess a high degree of surface modification versatility that enables the incorporation of carbon allotropes as the functional coating for a wide range of detection tasks. Moreover, the combination of carbon allotropes and optical fibers also yields high sensitivity and specificity to monitor target molecules in the vicinity of the nanocoating surface. In this review, the development of carbon allotropes-based optical fiber sensors is studied. The first section provides an overview of four different types of carbon allotropes, including carbon nanotubes, carbon dots, graphene, and nanodiamonds. The second section discusses the synthesis approaches used to prepare these carbon allotropes, followed by some deposition techniques to functionalize the surface of the optical fiber, and the associated sensing mechanisms. Numerous applications that have benefitted from carbon allotrope-based optical fiber sensors such as temperature, strain, volatile organic compounds and biosensing applications are reviewed and summarized. Finally, a concluding section highlighting the technological deficiencies, challenges, and suggestions to overcome them is presented.

Theoretical prediction of a new two-dimensional carbon allotrope and NDR behaviour of its one-dimensional derivatives

2013 ◽  
Vol 15 (48) ◽  
pp. 21001 ◽  
Author(s):  
Bikash Mandal ◽  
Sunandan Sarkar ◽  
Anup Pramanik ◽  
Pranab Sarkar
Keyword(s):  
Theoretical Prediction ◽  
Two Dimensional ◽  
Carbon Allotrope ◽  
One Dimensional

Tunable energy storage capacity of two-dimensional Ti3C2Tx modified by a facile two-step pillaring strategy for high performance supercapacitor electrodes

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21981-21989 ◽  
Author(s):  
Yahui Li ◽  
Yanan Deng ◽  
Jianfeng Zhang ◽  
Ye Han ◽  
Weiwei Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Storage Capacity ◽  
Two Dimensional ◽  
Energy Storage Capacity

This paper proposed to tailor the layer microstructures of two-dimensional Ti3C2Txvia a facile Li+ pre-pillaring and successive pillaring strategy by various cations.

scholarly journals A New Class of Scandium Carbide Nanosheet

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jing Wang ◽  
Tian-Tian Liu ◽  
Chen-Ling Li ◽  
Ying Liu
Keyword(s):  
First Principles ◽  
Density Functional ◽  
Storage Capacity ◽  
Two Dimensional ◽  
Primitive Cell ◽  
Hydrogen Storage Capacity ◽  
Functional Theory ◽  
Average Binding Energy ◽  
New Class ◽  
Hydrogen Molecules

Abstract A new class of two-dimensional scandium carbide nanosheet has been identified by using first-principles density functional theory. It has a primitive cell of Sc3C10, in which there are two pentagonal carbon rings surrounded by one scandium octagon. Being as the precussor of Volleyballene Sc20C60 and ScC nanotubes, the Sc3C10 nanosheet is exceptionally stable. By rolling up this Sc3C10 sheet, a series of stable ScC nanotubes have been obtained. All the nanotubes studied have been found to be metallic. Furthermore, the hydrogen storage capacity of the ScC nanotubes has been explored. The calculated results show that one unit of the (0,3) ScC nanotube can adsorb a maximum of 51 hydrogen molecules, reaching up to a 6.25 wt% hydrogen gravimetric density with an average binding energy of 0.23 eV/H2.

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