CIMTEC 2014 - 13th International Conference on Modern Materials and Technologies in Montecatini Terme, Tuscany, Italy, June 8 to 19, 2014.

CIMTEC 2014 - 13th International Conference on Modern Materials and Technologies -was held in Montecatini Terme, Tuscany, Italy, June 8 to 19, 2014.

 CIMTEC 2014 consisted of the 13th International Ceramics Congress (June 8-13) and of the 6th Forum on New Materials (June 15-19), each of them including a number of Symposia, Special Sessions, and Conferences.

As a major long standing event for the international materials community, CIMTEC again gathered together a large and qualified audience of materials scientists, physicists, chemists and engineers as well as of experts of a wide range of the most demanding application areas of modern materials, from the molecular and nanoscales to large complex integrated systems.

CIMTEC 2014

Nanomaterials Group from Drexel Nanomaterials Institute of Drexel University, USA, lead by professor Yury Gogotsi visited International Conference on Modern Materials and Technologies CIMTEC 2014 in Montecatini Terme, to take part in the 13th International Ceramics Congress and the 6th Forum on New Materials.

13th International Ceramics Congress, June 8-13 2014

SYMPOSIUM CG

PROGRESS IN NANO-LAMINATED TERNARY CARBIDES AND NITRIDES (MAX PHASES) AND DERIVATIVES THERE OF (MXENES)

CG:HP02 Optical and Electronic Properties of Two-dimensional Ti3C2 Epitaxial Thin Films (Hot Poster)
J. HALIM1,2,3, M.R. Lukatskaya1,2, K.M. Cook1,2, Jun Lu3, C.R. Smith1,2,L.-A. Näslu nd3, S.J. May1, L. Hultman3, Y. Gogotsi1,2, P. Eklu nd3, M.W.Barsoum1, 1Dept. of Materials Science & Engineering, Drexel University,Philadelphia, PA, USA; 2A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA, USA, Dept. of Materials Science & Engineering, Drexel University, Philadelphia, PA, USA; 3Thin Film Physics Division, Dept. of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden

Abstract

Since the discovery of graphene, two-dimensional (2D) materials receive growing interest because of their unique properties as compared to their bulk counterparts. Although graphene has garnered the lion’s share of this attention, other 2D materials beyond MoS2 and BN are being sought out. Recently, a new family of 2D materials of early transition metal carbides and carbonitrides (Ti2C, Ti3C2, Ti3CN, V2C, Nb2C, Ta4C3 and more) known as MXenes has been discovered. Herein we show the fabrication of a 2D epitaxial Ti3C2 thin film, formed by the selective etching of Al from magnetron sputter-grown Ti3AlC2.

The optical transmittance, electrical resistivity, and magnetoresistance of the films were also measured. These data show that the films are up to ~ 90% transparent in the visible to infrared range, and that metallic-like conductive behavior is exhibited down to ~ 100 K. At temperatures below 100 K, resistivity of the films increased with decreasing temperature and magnetoresistance proved to be negative, due to a weak localization phenomenon characteristic of 2D films. These results illustrate the potential for the use of Ti3C2 thin films as transparent conductive electrodes, as well as in electrical, photonic and sensing applications.

CG-5:IL01 MXenes: 2D hosts for Ions in Electrochemical Energy Storage Systems M. Naguib, M. Lukatskaya, o. Mashtalir, Y. Gogotsi, M. Barsoum, Department of Materials science & engineering, and A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, Pa, USA

Abstract

Recently we developed a new family of two-dimensional (2D) early transition metal carbides and carbonitrides, that we labeled MXenes. MXenes are produced by selective etching of the A-group layers from MAX phases. The latter is a large family of ternary layered metal carbides and/or nitrides. The etching process is carried out in an aqueous hydrofluoric acid. Thus, the as synthesized MXenes surface is terminated by O, OH and/or F. To date the following MXenes have been produced: Ti3C2, Ti2C, V2C, Nb2C, Ta4C3, TiNbC, (V0.5Cr0.5)3C2, and Ti3CN. Unlike conventional transition metal carbides, MXenes were found to be promising electrode materials in lithium-ions batteries (LIBs).

MXenes showed an excellent ability to handle cycling rates that are considerably faster than commercial graphite anodes can handle in LIBs (up to 40C). MXenes can also be used in electrochemical capacitors. At >300 F/cm3, the volumetric capacitance of MXenes was superior to that of activated carbon – the material of choice at this time. Herein we report on the latest progress in synthesis and use of MXenes as hosts for ions in electrochemical energy storage systems.

6th Forum on New Materials, June 15-19 2014

 Symposium FC
Electrochemical Energy Storage Systems: the Next Evolution

FC-2:L05  Effect of Cation on Diffusion Coefficient of Ionic Liquids at Onion-like Carbon Electrodes
K. VAN AKEN1, J.K. MCDONOUGH1, SONG LI2, GUANG FENG2, S.M. CHATHOTH3, 5, E. MAMONTOV3, P.F. FULVIO4, P.T. CUMMINGS2, SHENG DAI4, Y. GOGOTSI1, 1Department of Materials Science and Engineering & A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA, USA; 2Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA; 3Chemical and Engineering Materials Division, Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN, USA; 4Chemical Science Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA; 5Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China

Abstract

While most supercapacitors are limited in their performance by the electrolyte stability, using neat ionic liquids (ILs) can expand the voltage window and temperature range of operation. Three different techniques were used to investigate the characteristics of three ILs in a comprehensive approach for a new field of electrolytes. Exohedral onion-like carbon (OLC) was chosen as the electrode material, allowing the behavior of ILs to be investigated without the influence of the carbon structure. In this study, ILs with bis(trifluoromethylsulfonyl)imide as anion were investigated as the electrolyte in OLC-based electrochemical capacitors.

To probe the effect of cations on the electrochemical performance of supercapacitors, three different cations were used: 1-ethyl-3-methylimidazolium, 1-hexyl-3-methylimidazolium, and 1,6-bis(3-methylimidazolium-1-yl). A series of electrochemical characterization tests were performed. Diffusion coefficients were measured using electrochemical impedance spectroscopy and correlated with quasielastic neutron scattering and molecular dynamics simulation. The IL with the smaller sized cation had a larger diffusion coefficient, leading to higher capacitance at faster cycling rates. Electrolyte performance was also correlated with increasing temperature.

 Source: www.cimtec-congress.org

Related Items:

12th International Ceramics Congress CIMTEC 2010, Montecatini Terme, Florence, Italy 6-18, June 2010

CIMTEC 2010Alexey Gogotsi represented Materials Research Centre at CIMTEC 2010 with a poster presentation on Nanomanufactoring in Disсlosing Materials at Nanoscale: Synthesis and Applications of Photocatalytically Active Titania Nanoparticles ...

 

 

 

News from MRC.ORG.UA

Researcers from Drexel University have developed a recipe that can turn electrolyte solution into a safeguard against the chemical process that leads to battery-related disasters

Recipe for Safer Batteries — Just Add DiamondsResearchers described a process by which nanodiamonds — tiny diamond particles 10,000 times smaller than the diameter of a hair — curtail the electrochemical deposition, called plating, that can lead to hazardous short-circuiting of lithium ion batteries.

 
Triangle Talks with Yury Gogotsi

alt

Yury Gogotsi is a researcher in the Drexel University Nanomaterials Group. He and his colleagues discovered a series of novel materials known as MXenes. 

 
Yury Gogotsi is the most influential scientist of modern Ukraine

altThe life of Yury Gogotsi is a constant back and forth between the top laboratories in the world, writing articles in the best scientific journals and research materials that can change the world around them. 

 
Professor Yury Gogotsi , Drexel University, USA, received an Honorary Doctorate from Frantsevich Institute for Problems of Materials Science, National Academy of Science of Ukraine, Kiev, Ukraine, June 20, 2017.

Deputy Directors of IPMS NAS professors Dr. Ragulya, Dr. Baglyuk, Mr. Zavorotnyi, Honorary Professor of IPMS NASU Yury Gogotsi,  Scientific Secretary Dr. Kartuzov and Dr. Firstov Professor Yury Gogotsi , Drexel University, USA,  received an Honorary Doctorate from Frantsevich Institute for Problems of Materials Science, National Academy of Science of Ukraine.

 
Professor Yury Gogotsi was speaking about nanotechnology in energy storage at the World Science Festival 2017

Professor Yury Gogotsi at World Science Festival 2017Join world-class nanoscientists and environmental leaders to explore how the capacity to harness molecules and atoms is accelerating spectacular inventions — including light-weight “wonder materials,” vital energy-storage technologies, and new sources of renewable energy — which promise to redefine the very future of energy.

 
MXenes are at the forefront of 2D materials research

alt

Research of 2D MXenes is prominently featured in an article in Chemical & Engineering News - bulletin of the American Chemical Society that goes in hard copy to more than 150,000 subscribers. No doubt, MXenes are at the forefront of 2D materials research.

 
IDEATION Seminars: A New Platform for Innovation Management, Promotion, Licensing, Technology Transfer and Commercialization, June 7 at 14:30, KPI, Kyiv

altSpeakers:  Victor Korsun and Douglas Graham

 
Nano Iguana became a 1st place winner at 2017 MRS Science as Art Competition

Entry Nano Iguana became a 1st place winner at Science as Art Competition 2017: Nano-anatase (TiO2) crystals decorating graphene-like carbon, fabricated by oxidizing 2d Ti3C2 MXene powder, presented by A. J. Drexel Nanotechnology Institute and Department of Materials Science  and Engineering, Drexel University, USAResearch team from Drexel University lead by professor Yury Gogotsi produced an award-wining entry and became the 1st place winner in Science as Art competition at 2017 MRS Spring meeting in Phoenix.

 
1st Africa Energy Materials conference, 28 – 31 March 2017, Pretoria, South Africa

1st Africa Energy Materials conference On the first day of the conference, on March 28, the conference participants had an opportunity to attend a plenary lecture "Two-Dimensional Materials for High Rate and High-energy Density Storage" by invited plenary speaker professor Yury Gogotsi, Distinguished University Professor and Trustee Chair of Materials Science and Engineering at Drexel University, and Director of the A.J. Drexel Nanomaterials Institute 

 
Workshop “Nanomaterials – based innovative engineering solution to ensure sustainable safeguard to indoor air “ NANOGUARD2AR 27-28 February, Lisbon, Portugal

altThe goal of the workshop is to attract the most recognized academic experts in the field of Innovative Nanomaterials for Environmental Application to share their knowledge and expertise on nanomaterials, nanoengineering and green building concepts.

 
MATERIAL WITNESSES — RESEARCHERS AROUND THE WORLD ARE DELVING INTO DREXEL’S 2D MXENE

Researchers from the A.J. Drexel Nanomaterials Institute have been studying MXene for nearly half a decade. (L-R): Olekisy Gogotsi (Director of Materials Research Center, Ukraine), Gabriel Scull, Babak Anasori, Mohamed Alhabeb, Yury Gogotsi.

More than twenty 2D carbides, nitrides and carbonitrides of transition metals (MXenes) have been synthesized and studied, and dozens more predicted to exist. Highly electrically conductive MXenes show promise in electrical energy storage, electromagnetic interference shielding, electrocatalysis, plasmonics and other applications.

 
Prof. Gogotsi has been included in the list of ISI Highly Cited researchers for the 3rd year in the row

altProf. Gogotsi has been named among Highly Cited Researchers 2016, representing worlds most influential scientific minds

 
Appointment ceremony of Honorary professorship for prof. Yury Gogotsi, Jilin University, Changchun, China on October 20, 2016

Honorary professor of Jilin University Yury Gogotsi  and Li Yuanyuan, President of Jilin University, academician of the Chinese Academy of Engineering

The official appointment ceremony of Honorary professorship for Dr. Yury Gogotsi took place in a ceremonial atmosphere at Jilin University, Changchun, Jilin Province, China on October 20, 2016.

 
12th IUPAC International Conference on Novel Materials and their Synthesis (NMS-XII)

12th IUPAC International Conference on Novel Materials and their Synthesis (NMS-XII)12th IUPAC International Conference on Novel Materials and their Synthesis (NMS-XII), is held during 14-19 October, 2016 at Hunan Agriculture University together with Nanjing Tech University, Fudan University and University of Technology, Sydney.

 
Cleaning up electromagnetic pollution by containing the emissions with a thin coating of a nanomaterial called MXene

MXene is a nanomaterial that is both thin and light, but also has the unique ability to block and absorb electromagnetic radiation, which makes it the perfect for use as shielding in electronics devices.

 According to the authors, when electromagnetic waves come in contact with MXene, some are immediately reflected from its surface, while others pass through the surface but they lose energy amidst the material’s atomically thin layers.