Research Areas
High power Redox Flow Batteries for Grid-Scale Energy Storage
Flow Battery electrode research focused on improving the electron transfer reactions at the electrode/electrolyte interface in order to improve voltage efficiency and enhance the power density characteristics. With these improvements the cost of Redox Flow Batteries can be drastically increased and made into a viable option for grid-scale energy storage for emerging alternative energy techniques.

High-energy density supercapacitor electrodes based on redox polymers
Supercapacitor electrode research is focused on understanding the interactions between conducting polymers, high-capacity redox materials, and carbon materials to enable the rational design of electrodes with high power and energy densities. Key structure-property relationships governing electrode performance are investigated.

Modulating electrochemical properties with responsive polymer electrolytes
Adaptive and responsive materials enable us to manipulate electrolyte properties (conductivity, ionic strength, pH) with temperature and control the activity electrochemical systems. Responsive electrolytes incorporate ionic groups, such as acetic acid, into a thermally-responsive polymer, such as PNIPAM.
For more information, see our paper in Advanced Materials DOI: 10.1002/adma.201103340

Roll-to-Roll (R2R) Synthesis of Carbon Nanotubes
Aligned forests of multiwall carbon nanotubes (MWNT) are grown using a low-temperature CVD method with a floating catalyst on aluminum foil substrates. MWNTs grown with this process exhibit comparable EDLC properties to batch-grown nanotubes. R2R synthesis allows for scalable manufacturing of carbon nanomaterials, which will enable their use in a wide range of applications.
For more information, see our paper in Nano Energy DOI: 10.1002/adma.201103340

Electroactive conducting polymer design for High-Capacity Redox Electrodes
A building block approach to conducting polymer synthesis is investigated using tradional electroactive polymers and redox moieties to improve the transport and energy storage properties of supercapacitor electrodes.
For more information, see our paper in the Journal of Materials Chemistry DOI: 10.1039/C2JM14545F

Self-assembly approaches to synthesizing porous electroactive polymer electrodes
The porosity and nanostructure of conducting polymer films is controlled using various self-assembly strategies. Well-defined three-dimensonal structures are important for various applications to control conductivity, ion-tranport and interfacial properties.

Low-cost, high-sensitivity chemi-resistor sensors with porous polymer electrodes
Controlling the porosity and film connectivity in ECP films will improve detection sensitivity through enhanced surface area for analyte adsorption and interaction. Furthermore, the integration of porous electrodes as the detection media can be used to achieve size exclusion responses and inhibit surface biofouling.
For more information, see our review articles in the Journal of Materials Chemistry DOI: 10.1039/B816386C and Materials Today DOI: 10.1016/S1369-7021(09)70247-0

Apparao M. Rao (Clemson)
Prabhakar R. Bandaru (UCSD)
Dale Huber (Sandia)
Dave Wheeler (Sandia)
Stephen H. Foulger (Clemson)
Anthony Guiseppi-Elie (Clemson)
Mark Thies (Clemson)
Alejandro Briseno (UMass)

Funding Sources