Journal ArticleDOI
Preparation of High-Purity V2C MXene and Electrochemical Properties as Li-Ion Batteries
Fanfan Liu,Jie Zhou,Shuwei Wang,Bingxin Wang,Cai Shen,Libo Wang,Qianku Hu,Qing Huang,Aiguo Zhou +8 more
TLDR
In this article, a novel high-purity V2C MXene two-dimensional carbide, was successfully synthesized by etching V2AlC with sodium fluoride and hydrochloric acid at 90°C for 72 h.Abstract:
A novel high-purity V2C MXene two-dimensional carbide, was successfully synthesized by etching V2AlC with sodium fluoride and hydrochloric acid at 90°C for 72 h. From the analysis of X-ray diffraction, energy dispersive spectra, and X-ray photoelectron spectroscopy, the purity of as-synthesized V2C MXene was >90 wt% with a few impurities of Na5Al3F14 and V2AlC. The V2C MXene made by this method was much purer than those made by HF etching at room temperature. The as-prepared V2C MXene showed excellent electrochemical properties as anode of lithium-ion batteries. The capacity can be 260 mAh g−1 if discharged under 370 mA g−1. The capacity was increased with charge cycles at high charge rate (500 mA g−1). It was suggested that V2C with high purity can be promising anode material with excellent performance.read more
Citations
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Applications of 2D MXenes in energy conversion and storage systems
Jinbo Pang,Rafael G. Mendes,Rafael G. Mendes,Alicja Bachmatiuk,Alicja Bachmatiuk,Alicja Bachmatiuk,Liang Zhao,Huy Q. Ta,Thomas Gemming,Hong Liu,Hong Liu,Zhongfan Liu,Zhongfan Liu,Mark H. Rümmeli,Mark H. Rümmeli,Mark H. Rümmeli +15 more
TL;DR: The potential of MXenes for the photocatalytic degradation of organic pollutants in water, such as dye waste, is addressed, along with their promise as catalysts for ammonium synthesis from nitrogen.
Journal ArticleDOI
Recent Advances in Layered Ti 3 C 2 T x MXene for Electrochemical Energy Storage
TL;DR: This Review seeks to provide a rational and in-depth understanding of the relation between the electrochemical performance and the nanostructural/chemical composition of Ti3 C2 Tx, which will promote the further development of 2D MXenes in energy-storage applications.
Journal ArticleDOI
MXene and MXene-based composites: synthesis, properties and environment-related applications
TL;DR: In this paper, the synthesis and properties of two-dimensional transition metal carbides, carbonitrides, and nitrides have been summarized and highlighted in environment-related applications and challenges and perspectives for future research are also outlined.
Journal ArticleDOI
MXene: an emerging two-dimensional material for future energy conversion and storage applications
TL;DR: In this article, the authors discuss how 2D transition metal carbides have emerged as efficient and economical nanomaterials for future energy applications and highlight the promising potential of these materials in energy conversion and storage applications, such as water electrolyzers, lithium ion batteries and supercapacitors.
Journal ArticleDOI
The Computational 2D Materials Database: high-throughput modeling and discovery of atomically thin crystals
Sten Haastrup,Mikkel Strange,Mohnish Pandey,Thorsten Deilmann,Per Simmendefeldt Schmidt,N. F. Hinsche,Morten Niklas Gjerding,Daniele Torelli,Peter Mahler Larsen,Anders C. Riis-Jensen,Jakob Gath,Karsten Wedel Jacobsen,Jens Jørgen Mortensen,Thomas Olsen,Kristian Sommer Thygesen +14 more
TL;DR: The Computational 2D Materials Database (C2DB) as discussed by the authors is a large-scale database of 2D materials and van der Waals heterostructures, including tens of thousands of materials.
References
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Building better batteries
TL;DR: Researchers must find a sustainable way of providing the power their modern lifestyles demand to ensure the continued existence of clean energy sources.
Journal ArticleDOI
Nanostructured materials for advanced energy conversion and storage devices
Antonino S. Aricò,Peter G. Bruce,Bruno Scrosati,Jean-Marie Tarascon,Jean-Marie Tarascon,Walter van Schalkwijk +5 more
TL;DR: This review describes some recent developments in the discovery of nanoelectrolytes and nanoeLECTrodes for lithium batteries, fuel cells and supercapacitors and the advantages and disadvantages of the nanoscale in materials design for such devices.
Journal ArticleDOI
Two‐Dimensional Nanocrystals Produced by Exfoliation of Ti 3 AlC 2
Michael Naguib,Murat Kurtoglu,Volker Presser,Jun Lu,Junjie Niu,Min Heon,Lars Hultman,Yury Gogotsi,Michel W. Barsoum +8 more
TL;DR: 2D nanosheets, composed of a few Ti 3 C 2 layers and conical scrolls, produced by the room temperature exfoliation of Ti 3 AlC 2 in hydrofl uoric acid are reported, which opens a door to the synthesis of a large number of other 2D crystals.
Journal ArticleDOI
Conductive two-dimensional titanium carbide ‘clay’ with high volumetric capacitance
TL;DR: This capacitance report reports a method of producing two-dimensional titanium carbide ‘clay’ using a solution of lithium fluoride and hydrochloric acid that offers a much faster route to film production as well as the avoidance of handling hazardous concentrated hydrofluoric acid.
Journal ArticleDOI
Two-dimensional transition metal carbides.
Michael Naguib,Olha Mashtalir,Joshua Carle,Volker Presser,Jun Lu,Lars Hultman,Yury Gogotsi,Michel W. Barsoum +7 more
TL;DR: Evidence is presented for the exfoliation of the following MAX phases by the simple immersion of their powders, at room temperature, in HF of varying concentrations for times varying between 10 and 72 h followed by sonication.