Boridene: Two-dimensional Mo4/3B2-x with ordered metal vacancies obtained by chemical exfoliation

Science ◽  
2021 ◽  
Vol 373 (6556) ◽  
pp. 801-805
Author(s):  
Jie Zhou ◽  
Justinas Palisaitis ◽  
Joseph Halim ◽  
Martin Dahlqvist ◽  
Quanzheng Tao ◽  
...  
Keyword(s):  
Transition Metal ◽  
2D Materials ◽  
Single Layer ◽  
Two Dimensional ◽  
Metal Boride ◽  
Metal Carbides ◽  
Experimental Realization ◽  
Chemical Exfoliation ◽  
Molybdenum Boride ◽  
Metal Vacancies

Extensive research has been invested in two-dimensional (2D) materials, typically synthesized by exfoliation of van der Waals solids. One exception is MXenes, derived from the etching of constituent layers in transition metal carbides and nitrides. We report the experimental realization of boridene in the form of single-layer 2D molybdenum boride sheets with ordered metal vacancies, Mo4/3B2-xTz (where Tz is fluorine, oxygen, or hydroxide surface terminations), produced by selective etching of aluminum and yttrium or scandium atoms from 3D in-plane chemically ordered (Mo2/3Y1/3)2AlB2 and (Mo2/3Sc1/3)2AlB2 in aqueous hydrofluoric acid. The discovery of a 2D transition metal boride suggests a wealth of future 2D materials that can be obtained through the chemical exfoliation of laminated compounds.

scholarly journals Electronic properties and applications of MXenes: a theoretical review

2017 ◽  
Vol 5 (10) ◽  
pp. 2488-2503 ◽  
Author(s):  
Mohammad Khazaei ◽  
Ahmad Ranjbar ◽  
Masao Arai ◽  
Taizo Sasaki ◽  
Seiji Yunoki
Keyword(s):  
Transition Metal ◽  
Electronic Properties ◽  
Materials Science ◽  
Science And Technology ◽  
Max Phase ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
Chemical Exfoliation

The recent chemical exfoliation of layered MAX phase compounds to novel two-dimensional transition metal carbides and nitrides, the so-called MXenes, has brought a new opportunity to materials science and technology.

scholarly journals Oxygen Functionalization-induced Crossover in the Tensile Properties of thinnest 2D Ti2C MXene

2021 ◽  
Author(s):  
Jianyang Wu ◽  
Hongzhi Yu ◽  
Ke Xu ◽  
Zhisen Zhang ◽  
Xuezheng Cao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Tensile Properties ◽  
Surface Functionalization ◽  
2D Materials ◽  
Critical Role ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Planar Surface ◽  
Transition Metal Carbides

Transition metal carbides/nitrides (MXenes) are a newly developing class of two-dimensional (2D) materials with technically robust properties that can be finely tuned by planar surface functionalization. Herein, the critical role...

scholarly journals Magnetic phase transition from paramagnetic in Nb2AlC-MAX to superconductivity-like diamagnetic in Nb2C-MXene: an experimental and computational analysis

RSC Advances ◽  
2020 ◽  
Vol 10 (43) ◽  
pp. 25669-25678 ◽  
Author(s):  
Zaheer Ud Din Babar ◽  
Jameela Fatheema ◽  
Nimrah Arif ◽  
M. S. Anwar ◽  
Sundus Gul ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Metal ◽  
Magnetic Phase Transition ◽  
Computational Analysis ◽  
Magnetic Phase ◽  
2D Materials ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
The Family

Transition metal carbides (TMCs) have recently emerged as competent members among the family of two-dimensional (2D) materials, owing to their promising applications.

scholarly journals MXenes: focus on optical and electronic properties and corresponding applications

Nanophotonics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1601-1620
Author(s):  
Yifan Wang ◽  
Yanheng Xu ◽  
Menglei Hu ◽  
Han Ling ◽  
Xi Zhu
Keyword(s):  
Energy Storage ◽  
Transition Metal ◽  
Electronic Properties ◽  
Gas Separation ◽  
2D Materials ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Research Groups ◽  
Transition Metal Carbides ◽  
Optical And Electronic Properties

AbstractThe discovery of graphene, the first two-dimensional (2D) material, has caused an upsurge, as this kind of material revealed a tremendous potential of application in areas such as energy storage, electronics, and gas separation. MXenes are referred to as a family of 2D transition metal carbides, carbonitrides, and nitrides. After the synthesis of Ti3C2 from Ti3AlC2 in 2011, about 30 new compositions have been reported. These materials have been widely discussed, synthesized, and investigated by many research groups, as they have many advantages over traditional 2D materials. This review covers the structures of MXenes, discusses various synthesis routines, analyzes the properties, especially optical and electronic properties, and summarizes their applications and potential, which may give readers an overview of these popular materials.

scholarly journals Temperature-dependent mechanical properties of Tin+1CnO2 (n = 1, 2) MXene monolayers: a first-principles study

2020 ◽  
Vol 22 (6) ◽  
pp. 3414-3424 ◽  
Author(s):  
Rasoul Khaledialidusti ◽  
Babak Anasori ◽  
Afrooz Barnoush
Keyword(s):  
Mechanical Properties ◽  
Transition Metal ◽  
First Principles ◽  
2D Materials ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Temperature Dependent ◽  
Transition Metal Carbides ◽  
First Principles Study

Two-dimensional (2D) transition metal carbides, carbonitrides, and nitrides (named as MXenes) have become of the fastest growing family of 2D materials in terms of compositions and their applications in different areas.

Combined Healing and Doping of Transition Metal Dichalcogenides Through Molecular Functionalization

2021 ◽  
Author(s):  
Sai Manoj Gali ◽  
David Beljonne
Keyword(s):  
Transition Metal ◽  
Charge Transport ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Metal Dichalcogenides

Transition Metal Dichalcogenides (TMDCs) are emerging as promising two-dimensional (2D) materials. Yet, TMDCs are prone to inherent defects such as chalcogen vacancies, which are detrimental to charge transport. Passivation of...

Exploring the possibilities of two-dimensional transition metal carbides as anode materials for sodium batteries

2015 ◽  
Vol 17 (7) ◽  
pp. 5000-5005 ◽  
Author(s):  
Eunjeong Yang ◽  
Hyunjun Ji ◽  
Jaehoon Kim ◽  
Heejin Kim ◽  
Yousung Jung
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Electrochemical Properties ◽  
Anode Materials ◽  
Density Functional ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Functional Theory ◽  
Transition Metal Carbides ◽  
Sodium Batteries

MXenes are predicted to be a family of promising Na anode materials with desirable electrochemical properties using density functional theory.

scholarly journals Flame-retardant MXene/Polyimide Film with Outstanding Thermal and Mechanical Properties Based on the Secondary Orientation Strategy

2021 ◽  
Author(s):  
Yue Zhu ◽  
Qingyu Peng ◽  
Haowen Zheng ◽  
Fuhua Xue ◽  
Pengyang Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Transition Metal ◽  
Mechanical Performance ◽  
Polyimide Film ◽  
Polymeric Films ◽  
Two Dimensional ◽  
Thermal And Mechanical Properties ◽  
Metal Carbides ◽  
Transition Metal Carbides

With the development of multifunction and miniaturization in modern electronics, polymeric films with strong mechanical performance and high thermal conductivity are urgently needed. Two-dimensional transition metal carbides and nitrides (MXenes)...

First principles studies on electronic and contact properties of Single layer 2H-MoS2/1T'-MX2 heterojunctions

2022 ◽  
Author(s):  
Jiao Yu ◽  
Caijuan Xia ◽  
Zhengyang Hu ◽  
jianping Sun ◽  
Xiaopeng Hao ◽  
...  
Keyword(s):  
Transition Metal ◽  
First Principles ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Single Layer ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Transition Metal Chalcogenides

With in-plane heterojunction contacts between semiconducting 2H phase (as channel) and the metallic 1T' phase (as electrode), the two-dimensional (2D) transition metal chalcogenides (TMDs) field-effect transistors (FETs) have received much...

Inducing Liquid Crystallinity in Dilute MXene Dispersions for Facile Processing of Multifunctional Fibers

2022 ◽  
Author(s):  
Ken Aldren Aldren Usman ◽  
Jizhen Zhang ◽  
Ya Yao ◽  
Si Qin ◽  
Peter Lynch ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Transition Metal ◽  
Two Dimensional ◽  
Metal Carbides ◽  
Liquid Crystallinity ◽  
Transition Metal Carbides ◽  
Enhanced Properties

The liquid crystal (LC) phases of two-dimensional (2D) transition metal carbides/nitrides (MXenes) has enabled the production of their unique macro-architectures with ordered microstructure and enhanced properties. However, LC phases in...

Sign in / Sign up

Export Citation Format

Share Document