A Metal-Free Organic-Inorganic Aqueous Flow Battery for Massive Electrochemical Energy Storage

摘要: No Slide Title Page 1 A Metal-Free Organic-Inorganic Aqueous Flow Battery for Massive Electrochemical Energy Storage Brian Huskinson1, Michael P. Marshak1, Changwon Suh2, Süleyman Er2, Michael R. Gerhardt1, Cooper J. Galvin1, Xudong Chen2, Alán Aspuru-Guzik2, Roy G. Gordon1,2 & Michael J. Aziz1 1 Harvard School of Engineering & Applied Sciences 2 Dept. of Chemistry & Chemical Biology, Harvard University E-MRS symposium CC: 27 May 2014 Page 2 What is a Quinone? Page 3 Quinones/Hydroquinones: Reversible Quan, Sanchez, Wasylkiw, Smith, “Voltammetry of Quinones in Unbuffered Aqueous Solution...”, JACS 129, 12847 (2007) proton and electron addition reactions with known and estimated pK a ’s QH parabenzoquinone hydroquinone OH OH O– O– OH O– O O OH+ OH+ OH+ O Q QQ2- QH- QH+ QH 2 2+ QH 2 QH 2 + -e- +H+ -e- -e-e- -e-e- +H+ +H+ +H+ +H+ +H+ ~ -7 < -7 4.1 ~ -1 4.1 …