Promoting the formation of Co (III) electrocatalyst with diamond anodes
作者： F Escalona-Durán , M Muñoz-Morales , FL Souza , C Sáez , P Cañizares
DOI: 10.1016/J.JELECHEM.2021.115007
关键词: Electrocatalyst 、 Electrode 、 Electrolysis 、 Anode 、 Diamond 、 Cyclic voltammetry 、 Inorganic chemistry 、 Chemistry 、 Dielectric spectroscopy 、 Cobalt
摘要: Abstract In this work, the catalytic effect of electrode substrate on electrochemical oxidation cobalt (II) using boron doped diamond (BDD) anodes was studied. A significant increase Co (III) formation observed in BDD coatings tantalum (91.43% at around 90 min galvanostatic electrolysis), with respect to Si-BDD anode, which only attained a poorer conversion (8.33%) after applying same electric charge. Electrochemical impedance spectroscopy showed that Ta/BDD has lower charge-transfer resistance for (II)/Co(III) metallic pair and process is controlled by diffusion towards surface, due its rapid adsorption interface. This further confirmed cyclic voltammetry (CV) where electrodeposition surface obviously if we compare it Si/BDD anode. difference behavior, caused coating deposited, opens line research improve efficiency mediated electrolytic treatments based use Co, important industrial applications treatment many pollutants including volatile organic compounds (VOCs).
sci-hub.st 参考文章(19)
PA Michaud, M Panizza, L Ouattara, T Diaco, G Foti, Ch Comninellis, Electrochemical oxidation of water on synthetic boron-doped diamond thin film anodes Journal of Applied Electrochemistry. ,vol. 33, pp. 151- 154 ,(2003) , 10.1023/A:1024084924058
Muthuraman Govindan, Ramu Adam Gopal, Il Shik Moon, Efficient removal of gaseous trichloroethylene by continuous feed electro-scrubbing using a new homogeneous heterobimetallic electro-catalyst Chemical Engineering Journal. ,vol. 308, pp. 1145- 1153 ,(2017) , 10.1016/J.CEJ.2016.09.137
A. V. Novak, V. R. Novak, D. I. Smirnov, Evolution of surface morphology during the growth of amorphous and polycrystalline silicon films Journal of Surface Investigation-x-ray Synchrotron and Neutron Techniques. ,vol. 11, pp. 1014- 1021 ,(2017) , 10.1134/S1027451017050317
Dino Klotz, Daniel A. Grave, Hen Dotan, Avner Rothschild, Empirical Analysis of the Photoelectrochemical Impedance Response of Hematite Photoanodes for Water Photo-oxidation Journal of Physical Chemistry Letters. ,vol. 9, pp. 1466- 1472 ,(2018) , 10.1021/ACS.JPCLETT.8B00096
Salatiel W. da Silva, Emma M.O. Navarro, Marco A.S. Rodrigues, Andréa M. Bernardes, Valentín Pérez-Herranz, The role of the anode material and water matrix in the electrochemical oxidation of norfloxacin Chemosphere. ,vol. 210, pp. 615- 623 ,(2018) , 10.1016/J.CHEMOSPHERE.2018.07.057
Marina Fomina, Vladimir Koshuro, Vyacheslav Papshev, Igor Rodionov, Aleksandr Fomin, Surface morphology data of tantalum coatings obtained by electrospark alloying. Data in Brief. ,vol. 20, pp. 1409- 1414 ,(2018) , 10.1016/J.DIB.2018.09.028
Zilong Liu, Hongji Li, Mingji Li, Cuiping Li, Lirong Qian, Lin Su, Baohe Yang, Preparation of polycrystalline BDD/Ta electrodes for electrochemical oxidation of organic matter Electrochimica Acta. ,vol. 290, pp. 109- 117 ,(2018) , 10.1016/J.ELECTACTA.2018.09.058
Inmaculada Moraleda, Salvador Cotillas, Javier Llanos, Cristina Sáez, Pablo Cañizares, Laurent Pupunat, Manuel A. Rodrigo, Can the substrate of the diamond anodes influence on the performance of the electrosynthesis of oxidants? Journal of Electroanalytical Chemistry. ,vol. 850, pp. 113416- ,(2019) , 10.1016/J.JELECHEM.2019.113416
Christos Comninellis, Electrocatalysis in the electrochemical conversion/combustion of organic pollutants for waste water treatment Electrochimica Acta. ,vol. 39, pp. 1857- 1862 ,(1994) , 10.1016/0013-4686(94)85175-1
Elena Guinea, Francesc Centellas, Enric Brillas, Pablo Cañizares, Cristina Sáez, Manuel A. Rodrigo, Electrocatalytic properties of diamond in the oxidation of a persistant pollutant Applied Catalysis B: Environmental. ,vol. 89, pp. 645- 650 ,(2009) , 10.1016/J.APCATB.2009.01.028