Bin Xu: MXene Materials: Preparation, Properties and Energy Storage Applications
MXene material was discovered in 2011, is one of the most concerned two-dimensional nanomaterials after graphene, rapid development in recent years, has become the forefront of materials, energy, catalysis, environmental protection, sensing and many other fields of research. Introduction to MXene materials Two-dimensional transition metal carbides, nitrides or carbon nitrides, namely MXene materials, are A new class of two-dimensional n
Preparation, properties and application of MXene/ polymer films
As a new two-dimensional material, transition metal carbon/nitride (MXene) has been reported for the first time since 2011, and has quickly attracted the attention of scientific researchers because of its excellent properties. MXene is composed of n+1 layer of transition metal atoms (M) and n layer of carbon or nitrogen (X) atoms, and its general formula can be written as Mn+1XnTx, where n is 1, 2 or 3, representing the atomic arrangement types of three MXene materials, T refers to the functional group bonded to the surface of the material. Due to the rich chemical composition of the sys
Prog. Mater. Sci. (IF:48.165) | 2D MXene and carbon
The importance of carbon, one of the most important elements of life, is self-evident. Since the Paleolithic era, humans have tried to use carbon to meet our most basic needs. Today, scientists have successfully developed full-dimensional carbon materials, from 0D carbon quantum dots, 1D carbon nanotubes or bands, 2D graphene and 3D carbon foam, and so on, have been widely used in many fields. Therefore, carbon materials also play an extremely important ro
Prog. Mater. Sci. (IF:48.165) | 2D MXene and carbon
The importance of carbon, one of the most important elements of life, is self-evident. Since the Paleolithic era, humans have tried to use carbon to meet our most basic needs. Today, scientists have successfully developed full-dimensional carbon materials, from 0D carbon quantum dots, 1D carbon nanotubes or bands, 2D graphene and 3D carbon foam, and so on, have been widely used in many fields. Therefore, carbon materials also play an extremely important role in the world we l
April 7-9 "2023 8th National Energy Storage Science and Technology Conference"
The 8th National Energy Storage Science and Technology Conference, co-sponsored by Jilin University, Energy Storage Engineering Committee of Chemical Society of China, Electric Energy Storage Committee of Chinese Society of Electrical Engineering, and Chemical Industry Press Co., Ltd. has been held in Changchun Wuhuan International Hotel from April 7th to 9th, 2023. The theme of the conference is "Key Science and Technology for Energy Storage under the Dual Carbon Target". Thi
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Ultra-high-rate pseudocapacitive energy storage in two-dimensional transition metal carbides
(Nature Energy, 2017,DOI:10.1038/nenergy.2017.105) Two-dimensional transition metal carbides (MXenes) can provide higher volume and area capacitance than carbon, conductive polymers or transition metal oxides at sweeping speeds beyond those of conventional double-layer capacitors. The researchers confirmed that different electrode design strategies affect the capacitance of Mxene close to the theoretical voltage window, and also showed that the extended voltage window can be obtained not only in glassy carbon, but also in other fluid collector applications. The macroporous e
Yury Gogotsi's New book NATURE!!
Following an article on Ti3C2 published in Science last year, Yury Gogotsi, an ultra-high volume-specific capacity Ti3C2 supercapacitor, reported in Nautre this year. Previous Science has only been able to achieve high volume specific energy in thin film form. This work provides a method to produce a two-dimensional material called Play-doh, which can be made into a variety of shapes on demand while maintaining its ultra-high volume specific energy, promising for industrial applications. Safe and powerful energy storage devices are becoming increasingly important. Charging
Synthesis and Electrochemical Properties of Two-Dimensional Hafnium Carbide.
The preparation of MXenes is mainly obtained by selective etching of Al atoms in MAX phase material with Al A position in HF acid, NH4HF2 solution, LiF and HCl mixture solution and low eutectic mixed salt medium. Since it is difficult for transition metals Zr and Hf to form MAX phase with A as Al, there is no report on MXenes materials of Zr and Hf series up to now. Compared with Zr series materials, Hf lamellar carbide is more difficult to obtain a single phase, the researchers based on the solution method of tuning unit cell in the thinking of the layer, the introduction of a small amount of
MXene molecular sieving membranes for highly efficient gas separation
(Nat. Commun.,2017,DOI: 10.1038/s41467-017-02529-6) This paper introduces a two-dimensional lamellar molecular sieve membrane MXene with highly ordered subnano channels. The abundant and evenly distributed end groups on the surface of MXene nanosheets are used to support the formation of highly ordered two-dimensional
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Jilin Yiyi Science and Technology Co., Ltd. will take physical, chemical and life sciences as the core of basic science, stimulate future scientific research and the transformation of related achievements, stimulate the research and development of cutting-edge materials, promote the development of energy, environment and medical career new opportunities, to meet the better future life with science. "11"is dedicated to the development of future science.Physical,chemistry,and biology were
Current status and future development of heat treatment technology for metal materials
Metal materials and various scientific activities as well as economic society has a close connection, the development of human society to today. With the progress of The Times and the development of science and technology, metal substitutes have been constantly developed, and the heat treatment technology of metal materials has also been improved unprecedentedly. The following will briefly describe and analyze its development status and future development direction. Key words: Heat treatment technology of metal materials; The status quo. The development direction
Zhang Fang, head of the organizing committee of the competition and president of Jiangsu New Material Industry Association, said that from the competition projects, advanced carbon material technology in the overall speed up the pace of product performance optimization and commercialization. The "synthetic high thermal conductivity graphite cooling film" overcomes many shortcomings such as the inability of the traditional process to obtain a complete single graphite film and unstable product performance, and opens a new expansion space for the graphene cooling pro
Nano-metallic materials: Advances and challenges
More than 40 years ago, scientists realized that disordered structures in real materials cannot be ignored. Many of the NEWLY discovered PHYSICAL EFFECTS, SUCH as certain phase transitions, quantum SIZE EFFECTS, and RELATED TRANSPORT PHENOMENA, OCCUR ONLY in ordered solids containing defects. In fact, if the crystal area of polycrystal characteristic scale (grain diameter or domain or film thickness) reaches a certain characteristic length (such as electronic wavelength, the mean free path, coherent length, correlation length, etc.), the performance of the materia
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MXenes at the Frontier of the 2D Materials World
Yury Gogotsi Department of Materials Science and Engineering, and A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA 19104, USA E-mail: Gogotsi@drexel.edu Abstract: The family of 2D transition metal carbides and nitrides (MXenes) has been expanding rapidly since the discovery of Ti3C2 in 2011[1]. Approximately 30 different MXenes have been synthesized, and the structure and properties of numerous other MXenes have been predicted using density functional theory (D
2D transition metal carbide (MXene) thin film for EMI shielding
Chong Min Koo Materials Architecturing Research Center, Korea Institute of Science and Technology KU-KIST Graduate School of Converging Science and Technology, Korea University E-mail: koo@kist.re.kr Abstract: MXenes are a family of 2D transition metal carbides, nitrides, and carbonitrides with the general formula Mn1XnTx (n = 1, 2, or 3; M = transition metal, e.g. Ti, Nb, Mo; X = C and/or N; T = surface termination, e.g. – OH, –F, –O). Unlike other 2D materia
Masashi OKUBO The University of Tokyo, Japan E-mail: m-okubo@chemsys.t.u-tokyo.ac.jp Abstract: The development of efficient electrochemical energy storage (EES) devices is an important sustainability issue to realize green electrical grids. The metal carbide/nitride nanosheets termed MXene discovered in 2011 are a promising class of electrode materials for advanced EES devic
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