title: An Organic Catalyst for Li-O2 Batteries: Dilithium Quinone-1,4-Dicarboxylate.
abstract: Solid organic electrocatalysts have hardly been tested in Li-O2 batteries. Here, a new solid organic electrocatalyst, dilithium quinone-1,4-dicarboxylate (Li2 C8 H2 O6 ) is presented, which is expected to overcome the shortcomings of inorganic catalysts. The function-oriented synthesis is low cost and low polluting. The electrocatalytic performance is evaluated by following the degradation of Li2 O2 during the charge process in a Li-O2 cell through in situ XRD and operando synchrotron radiation powder XRD (SR-PXD) measurements. The results indicate that the electrocatalytic activity of Li2 C8 H2 O6 is similar to that of commercial Pt. The Li2 O2 decomposition in a cell with Li2 C8 H2 O6 catalyst follows a pseudo-zero-order reaction, virtually without any side reactions. These results provide an insight into the development of new organic catalysts for the oxygen evolution reaction (OER) in Li-O2 batteries.
authors.affiliation: Department of Chemistry-Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala (Sweden).
authors.forename: Jia
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Chemistry-Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala (Sweden).
authors.forename: Stéven
authors.initials: S
authors.lastname: Renault
authors.affiliation: Department of Chemistry-Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala (Sweden).
authors.forename: Daniel
authors.initials: D
authors.lastname: Brandell
authors.affiliation: Department of Chemistry-Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala (Sweden).
authors.forename: Torbjörn
authors.initials: T
authors.lastname: Gustafsson
authors.affiliation: Department of Chemistry-Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala (Sweden).
authors.forename: Kristina
authors.initials: K
authors.lastname: Edström
authors.affiliation: Department of Chemistry-Ångström Laboratory, Uppsala University, Box 538, 751 21 Uppsala (Sweden). jiefang.zhu@kemi.uu.se.
authors.forename: Jiefang
authors.initials: J
authors.lastname: Zhu
mesh_terms: D002384:Catalysis; D011211:Electric Power Supplies; D004566:Electrodes; D008094:Lithium / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D010087:Oxides; D008094:Lithium
keywords: batteries; energy conversion; kinetics; lithium; x-ray diffraction