In this presentation we will show that, by emphasizing physical organic chemistry, molecular engineering is a powerful strategy to develop high performance redox active molecules for flow battery application. We will discuss the development of pH neutral aqueous organic redox flow batteries (AORFBs) employing water-soluble redox active molecules including viologen, ferrocene, TEMPO, and Ferrocyanide.[1-5] Particularly, the chemistry and battery performance of two electron storage viologen molecules will be highlighted. In addition, our effort in developing non-aqueous organic redox flow batteries (NAORFBs) will be also covered.
References: (1) Hu, B.; DeBruler C., Rhodes, Z.; Liu, T. L., J. Amer. Chem. Soc., 2017, 1207-1214. (2) Liu, T.;* Wei, X.; Nie, Z.; Vince, S.; Wang, W. Adv. Energy Mat. 2016. (3) B. Hu, C. Seefeldt, C. DeBruler, T. L. Liu, J. Mater. Chem. A 2017, DOI: 10.1039/C1037TA06573F. (4) Filed US Patents covering applications of water-soluble viologen, ferrocene derivatives, and TEMPO for RFBs. (5) Luo, J.; Sam, A.; Hu, B.; DeBruler, C.; Wei, X.; Wang, W.; Liu, T. L. Nano Energy 2017, ASAP. (6) DeBruler, C.; Hu, B.; Moss, J.; Liu, X.; Luo, J.; Sun, Y.; Liu, T. L. Chem 2017, ASAP.
Biography: Dr. Tianbiao Leo Liu received his Ph.D from Texas A&M University in 2009, served as staff scientist at Pacific Northwest National Laboratory from 2013 to 2015, and is currently an assistant professor at Utah State University. His research is broadly spread on energy and green chemistry including electrocatalysis, electrochemical energy storage, and environmentally benign chemical transformations.