4th International Symposium on Enhanced Electrochemical Capacitors, ISEE'Cap, 2015

4th International Symposium on Enhanced Electrochemical Capacitors, ISEE'Cap Conference 2015

alt

After Nantes in 2009, Poznan in 2011 and Taormina in 2013, the 4th edition of the International Symposium on Enhanced Electrochemical Capacitors, ISEE'Cap15, was held in Montpellier (France) on June 8-12 2015. The main objective of ISEE'Cap15 was to gather the most renowned international experts together with non-specialist engineers and researchers who share interest in electrochemical capacitors, including:

  • Electrochemical Double Layer Capacitors, electrode materials and mechanisms
  • Pseudocapacitors, electrode materials and mechanisms
  • New concepts, new devices and new fabrication processes in supercapacitors
  • Asymetric and hybrid devices
  • Electrolytes and interfaces
  • Characterization techniques, in-situ and in-operando methods
  • Modelling of phenomena and systems
  • Devices, system integration and applications

As for the previous events in the series, the symposium was preceded by a half-day tutorial session with four lectures given by P. Simon, W. Sugimoto, T. Brousse and J. Miller on a updated state of the art in the field.

At the 4th International Symposium on Enhanced Electrochemical Capacitors, ISEE'Cap in poster session B.Dyatkin, Drexel University (USA) presented the results of joint work describing high capacitance of coarse-grained carbide-derived carbon particles.

High Capacitance of Coarse-Grained Carbide-Derived Carbon Particles

B. Dyatkin,a O. Gogotsi,b Y. Zozuly,b B. Malinovskiy,b P. Simon,c and Y. Gogotsia

 a A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA, USA b Materials Research Centre, Kyiv, Ukraine c CIRIMAT, CNRS & Université Paul Sabatier, Toulouse, France

High Capacitance of Coarse-Grained Carbide-Derived Carbon ParticlesMost conventional supercapacitor electrode materials implement micrometer (1-10um) or nanometer (5-100 nm) size carbon particles with finely tuned porosities and high accessible specific surface areas. We present a novel internal surface area electrode with 50-100 um diameter particles, a finely tuned microporosity, a specific surface area in excess of 1800 m2/g, and high capacitive performance. We obtained these carbide-derived carbon (CDC) materials via Cl2 etching of large titanium carbide particles at 800°C and subsequently annealing them with H2 at 600ºC.

The carbon particles, which retained their coarse-grained structure, exhibited a narrow pore size distribution (dav=0.67 nm) that allowed for electrosorption of organic electrolytes and room temperature ionic liquids. Electrochemical testing using tetraethylammonium tetrafluoroborate (Net4+)(BF4-) solvated in acetonitrile showcased low ionic resistance, capacitance exceeding 120F/g (at 10mV/s), and high rate handling capability that allowed the material to store 60F/g at 1V/S charge/discharge rate.

We evaluated the performance of this carbon material using 1-ethyl-3-methylimidazolium bis(trifliuoromethylsulfonyl)imide ((EMlm+)(TFSI-)) in neat and solvated configurations. Despite the viscous nature of the electrolyte, the material displayed over 110 F/g charge storage densities in a solvent-free state and 140 F/g while solvated in acetonitrile at 10mV/s sweep rate. Furthermore, neat RTIL electrolyte extended the voltage window of the material above 3.0 V, displaying little electrochemical breakdown and improving the materials operational capability and energy density.

alt

In addition to displaying high capacitance, dense, coare-grained carbon electrodes offer a less expensive supercapacitor fabrication approach and maximize the electrodes mass loading. We further explore the fundamental properties of his novel model system by mechanically milling or vacuum annealing the material to explore the influence of pore length and surface defects on fundamental properties of ion electrosorption in supercapacitors.

Source: www.iseecap2015.org

 

News from MRC.ORG.UA

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.

 
Beijing University of Chemical Technology awarded prof. Yury Gogotsi, Drexel University (USA) the title of Honorary Professor

Honorary Professor appointment ceremony at the Beijing University of Chemical TechnologyBeijing University of Chemical Technology have decided to award prof. Yury Gogotsi, Drexel University (USA) the title of Honorary Professor based on his distinguished academic accomplishments. 

 
Prof. Yury Gogotsi became the winner of 2016 Nano Energy Award!

prof. Yury Gogotsi, Drexel UniversityNano Energy Award was presented to prof. Yury Gogotsi at 2016 Nanoenergy and Nanosystems Conference, which was held in Beijing on 13-15 July 2016.

 
Professor Yury Gogotsi, director of Drexel Nanomaterials Institute, Drexel University, USA, and director of Materials Research Centre Oleksiy Gogotsi visited Jilin University in Changchun, China

meeting at Jilin UniversityProfessor Yury Gogotsi, director of Drexel Nanomaterials Institute, Drexel University, USA, and director of Materials Research Centre Oleksiy Gogotsi visited Jilin University in Changchun, China, to meet research partners and discuss work questions and joint cooperation.

 
Yury Gogotsi gave a seminar lecture on Two-Dimensional Carbides and Nitrides (MXenes) and Their Applications in Energy Storage, Jilin University, China

Director of Materials Research Centre Oleksiy Gogotsi visited interesting seminar lecture of Prof. Yury Gogotsi on MXenes for the students of Jilin University.

June 16, 2016 prof. Yury Gogotsi gave a seminar lecture on Two-Dimensional Carbides and Nitrides (MXenes) and Their Applications in Energy Storage for the sudents and researchers of Jilin University, Changchun, China.

 
Nature Conference on Materials for Energy 2016

altProf.Yury Gogotsi at the Nature Journals’ Materials for Energy conference gave a talk on Synthesis, Properties And Energy Storage Applications of Two-Dimensional Carbides (Mxenes) in Wuhan University of Technology Conference Centre, Wuhan, China

 
Congratulations to Prof. Gogotsi on winning the 2016 Nano Energy Award

prof. Yury Gogotsi, Drexel UniversityThe award will be presented to prof. Yury Gogotsi at the Nanoenergy and Nanosystems 2016 conference, which will be held in Beijing between 13-15 July 2016.

 
Congratulations to professor Yury Gogotsi for being named a Thomson Reuters 2015 Highly Cited Researcher!

altProfessor Yury Gogotsi have been listed in the 2015 World’s Most Influential Scientific Minds.