“MXene-polymer composite” paper published on PNAS

The paper of “Flexible and conductive MXene films and nanocomposites with high capacitance”, by Chang E. Ren, Meng-qiang Zhao and our former group members Zheng Ling and James Giammarco, is on publication in the Proceedings of the National Academy of Sciences. This paper is the first ever report on composites based on MXenes- the new class of two-dimensional materials that we have been exploring with Prof. Barsoum’s group since 2011. This kind of composite films has an amazing combination of electrical, mechanical and electrochemical properties, and can challenge graphene-based or composite films/papers.

The paper can be found here.

Movie related to flexibility of the Mxene film is free to access via this link.

Drexel university presee release can be found here.

Media coverage on our PNAS paper:






Boris Dyatkin completed his research visit to Dalian University of Technology, China

Boris Dyatkin recently completed an 8-week research visit to Dalian University of Technology (DUT) in Dalian (Liaoning Province, China). He was the recipient of an International Research Fellowship, awarded by the The International Center for Materials Resarch (ICMR) at UC Santa Barbara. Boris worked with the Carbon Research Laboratory of Professor Qiu. His research focused on exploring fundamental properties of graphene aerogels and porous carbons and optimizing their structures for energy storage. He additionally delivered invited seminar talks at East China University of Science and Technology (ECUST) and Northwestern Polytechnical University (NWPU).

Group photo with material group at Dalian University of Technology
Group photo with material group at Dalian University of Technology
Invited talk
Invited talk
Working in Prof. Qui lab
Working in Prof. Qui lab
Dr. Gogotsi Discusses Lithium Batteries for Newsworks

Dr. Gogotsi Discusses Lithium Batteries for Newsworks

Drexel Prof. Yury Gogotsi (Marilyn D'Angelo/for NewsWorks)
NM Director Dr. Yury Gogotsi (Marilyn D’Angelo/for NewsWorks)

Following the explosion of a laptop’s lithium ion battery pack last weekend, Dr. Gogotsi spoke with Newsworks to explain the science of lithium batteries and the safety features that are designed for their use.

You can read about the discussion or listen to the full audio of the discussion on the Newsworks website.

Freshman Engineering Project Prototypes Electrochemical Flow Capacitor

Freshman Engineering Project Prototypes Electrochemical Flow Capacitor

Prototype of the electrochemical flow capacitor, assembled by Alex McBride, Conrad Schmidt, Sara Braun, Tapiwanashe Ndlovu and Grace Womack
Prototype of the electrochemical flow capacitor, assembled by Alex McBride, Conrad Schmidt, Sara Braun, Tapiwanashe Ndlovu and Grace Womack

Building on ideas first laid out by the Nanomaterials Group two years ago, a group of freshman engineering students assembled the first prototype of the electrochemical flow capacitor.

The students, from the departments of Materials Science and Engineering and Chemical and Biological Engineering, worked under the mentorship of NMG PhD student Kelsey Hatzell, whose work primarily focuses on the EFC. The students showed their prototype storing energy collected from a solar cell, as well as the EFC powering an LED.

The students created a video documenting their project. Watch it below or click here to view it on YouTube.



Congratulations to the team for their hard work and success!

McDonough Successfully Defends PhD Thesis

Congratulations to Dr. John (Jake) McDonough, who successfully defended his thesis, “Carbon Onions for Electrochemical Capacitors,” on June 11. (See Jake’s abstract below, or visit the Publications page for some of his published papers.)

Best wishes to Jake in his future endeavors!


Energy off the grid, whether it be generation, storage, or efficiency, is a worldwide problem that everyone can relate to, from a cell phone battery dying, to gas efficiency in a vehicle. An alternative system that is able to deliver much higher power than batteries is called an electric double layer capacitor (EDLC, also called supercapacitor or ultracapacitor). EDLCs are fundamentally different in their charge storage mechanism, which relies on the physical adsorption of ions on a high surface area material instead of chemical reactions. This system can deliver more than 10x the power density, be charged and discharged almost a million times, and has an excellent efficiency (~95%). The major obstacle is its lower energy density, with batteries having about 10x the energy density of an EDLC.

The low energy density of EDLCs has caused most research groups in the field to focus on improving this property. Unfortunately, it is a fundamental problem with the system, and may never be solved. For this reason, it is the goal of this work to further increase the power capabilities of EDLCs, approaching that of electrolytic capacitors, by exploring a new material, called carbon onions, or onion-like carbon (OLC). Never before has a thesis been focused solely on developing OLC for EDLC applications. OLC in its raw form has major advantages over traditional porous materials for EDLCs: it is nonporous allowing for exceptional charge- discharge rates, which translates into power densities more than 10x higher than traditional EDLC materials, although at the expense of a lower energy density.

This work focuses on understanding the effect of annealing conditions and precursor material on the OLC transformation mechanism and kinetics. The resulting structure and physical properties of OLC are correlated with electrochemical properties as OLC is used in EDLC electrodes. The capacitance of OLC was increased through chemical alteration of its surface and by coating the surface with redox active molecules. The unique structure of OLC allows for novel uses of the material with ionic liquid electrolytes and as a conductive additive to conventional EDLC materials.

Dr. Gogotsi Interviewed by MRS TV before Kavli Lecture

Dr. Gogotsi Interviewed by MRS TV before Kavli Lecture

Dr. Gogotsi with MRS President Dr. Tia Benson Tolle
Dr. Gogotsi with MRS President Dr. Tia Benson Tolle

NMG director Dr. Yury Gogotsi was selected to give the Fred Kavli Distinguished Lectureship in Nanoscience at the 2014 Spring MRS meeting. MRS TV featured an interview with Dr. Gogotsi about his talk, titled “Not Just Graphene — the Wonderful World of Carbon.” See the interview now on YouTube.

Dr. Gogotsi’s Kavli Lecture will be available via the MRS OnDemand service in mid-May.

NMG Members at MRS Meeting in San Francisco

Several members of the Nanomaterials Group are in San Francisco this week for the Materials Research Society Meeting. A list of presentations (including the Fred Kavli lecture, being delivered by Dr. Yury Gogotsi) and posters from the group is below.


Monday 04/21/14

7-8 p.m.

Fred Kavli Distinguished Lectureship in Nanoscience

Marriott Marquis, Yerba Buena Level, Salon 7

Yury Gogotsi, Drexel University


Tuesday 04/22/14

9:00 AM – *PP1.02

Nanodiamond-Containing Polymer-Matrix Composites

Vadym  N  Mochalin1 2, Ioannis  Neitzel3 1 2, Yury  Gogotsi1 2.


Tuesday 04/22/14

3:00 PM – *O3.04

Ion Intercalation into 2D Titanium Carbide Based MXenes: Applications for Electrochemical Energy Storage

Maria  R.  Lukatskaya1, Chang  E.  Ren1, Olha  Mashtalir1, Yohan  Dall’Agnese1 2, Michael  Naguib1, Patrice  Simon2, Michel  W.  Barsoum1, Yury  Gogotsi1.


Wednesday 04/23/14

8:30 AM – PP4.01

Adsorption and Release of Drugs on Nanodiamond

James  Giammarco1 2, Vadym  N  Mochalin1 2, Amanda  Pentecost1 2, Yury  Gogotsi1 2.


Wednesday 04/23/14

11:45 AM – R4.10

Knitted Electrochemical Capacitors From Carbon-Welded Cellulose Yarns

Kristy  Jost1 2 3, David  P.  Durkin4, Chelsea  Knittel3, Luke  Haverhals6, Hugh  De Long5, Paul  C.  Trulove4, Yury  Gogotsi1 2, Genevieve  Dion3.


Wednesday 04/23/14

4:00 PM – PP5.07

Atomistic Modeling of Nanodiamond Solvation

Vadym  N  Mochalin1 2.


Friday 04/25/14

9:30 AM – O9.05

Expanded Voltage Window in An Aqueous-Based Asymmetric Manganese-Dioxide/Activated Carbon Suspension Electrode System

Kelsey  Bridget  Hatzell1 2, Lei  Fan1 2, Majid  Beidaghi1 2, Chris  Dennison3 2, Ekaterina  Pomerantseva1, E. Caglan  Kumbur3, Yury  Gogotsi1 2.


Friday 04/25/14

2:45 PM – N10.06

Mixtures of Ionic Liquids and Organic Solvents as Electrolytes for Electrochemical Capacitors

Katherine  Van Aken1, Majid  Bedaighi1, Mayumi  Nishida2, Yury  Gogotsi1.


Friday 04/25/14

4:15 PM – N10.10

Three-Dimensional Structures of Nb2O5/Graphene As High Rate Electrodes for Li-Ion Capacitors

Majid  Beidaghi1, Chuanfang  Zhang1, Ryan  Maloney2, Bruce  Dunn2, Yury  Gogotsi1.



Tuesday 04/22/14

8:00 PM – NN3.15

Cation Intercalation and High Volumetric Capacitance of Two-Dimensional Titanium Carbide

Maria  R.  Lukatskaya1, Chang  E.  Ren1, Olha  Mashtalir1, Yohan  Dall’Agnese1 2, Michael  Naguib1, Patrice  Simon2, Michel  W.  Barsoum1, Yury  Gogotsi1.


Tuesday 04/22/14

8:00 PM – LL5.22

Optical and Electronic Properties of Two-Dimensional Ti3C2 Epitaxial Thin Films

Joseph  Halim1 2 3, Maria  Lukatskaya1 2, Kevin  Cook1 2, Jun  Lu3, Cole  Smith1, Lars-Ake  Naeslund3, Steve  May1, Lars  Hultman3, Yury  Gogotsi1 2, Per  Eklund3, Michel  Barsoum1.


Tuesday 04/22/14

8:00 PM – PP3.05

Surface Chemistry and Adsorption on Nanodiamonds

Vadym  N  Mochalin1 2, James  Giammarco1 2, Yury  Gogotsi1 2.


Wednesday 04/23/14

8:00 PM – NN6.48

Synthesis of Two-Dimensional Transition Metal Carbides and Their Application as Electrode Materials for Lithium Ion Batteries

Michael  Naguib1 2, Joseph  Halim1 2 3, Jun  Lu3, Kevin  M  Cook1 2, Lars  Hultman3, Michel  W.  Barsoum1, Yury  Gogotsi1 2.


Thursday 04/24/14

8:00 PM – N8.60

Effects of Surface Chemistry and Graphitization on Ion Dynamics, Electrolyte Stability, and Double Layer Capacitance

Boris  Dyatkin1, Kevin  Cook1, Majid  Beidaghi1, Vadym  Mochalin1, Yury  Gogotsi1.



Collaborator presentations


Oral presentation


Thursday 04/24/14


8:30 AM – *O6.02

Supercapacitors Based on Ionic Liquid Electrolytes: Materials and Systems

Wan-Yu  Tsai1, Pierre Louis  Taberna1, Yury  Gogotsi2, Patrice  Simon1.

1,  Materials Sciences, University Paul Sabatier Toulouse III, Toulouse, France; 2,  Materials Science, University Paul Sabatier Toulouse III, Toulouse, 31400, France.


Poster Presentation


Thursday 04/24/14


8:00 PM – O8.77

MXenes as High Capacity Electrodes Materials for Metal (Li, Na, K, Ca)-Ion Batteries

Dequan  Er1, Junwen  Li1, Michael  Naguib2, Michel  Barsoum2, Yury  Gogotsi2, Vivek  B.  Shenoy1.