Título:
|
Mn3O4@CoMn2O4-CoxOy nanoparticles : partial cation exchange synthesis and electrocatalytic properties toward the oxygen reduction and evolution reactions
|
Autor/a:
|
Luo, Zhishan; Irtem, Erdem; Ibañez, María; Nafria Soler, Raquel; Martí Sanchez, Sara; Genç, Aziz; de la Mata, María; Liu, Yu; Cadavid, Doris; Llorca Piqué, Jordi; Arbiol, Jordi; Andreu, Teresa; Morante Lleonart, Joan Ramon; Cabot Codina, Andreu
|
Otros autores:
|
Institut de Recerca en Energía de Catalunya; Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia |
Abstract:
|
Mn3O4@CoMn2O4 nanoparticles (NPs) were produced at low temperature and ambient atmosphere using a one -pot two-step synthesis protocol involving the cation exchange of Mn by Co in preformed Mn3O4 NPs. Selecting the proper cobalt precursor, the nucleation of CoxOy crystallites at the Mn3O4@a CoMn2O4 surface could be simultaneously promoted to form Mn3O4@CoMn2O4-CoxOy NPs. Such heterostructured NPs were investigated for oxygen reduction and evolution reactions (ORR, OER) in alkaline solution. Mn3O4@ CoMn2O4-Cox0y NPs with [Co]/[Mn] = 1 showed low overpotentials of 0.31 Vat(-3) mA.cm(-2) and a small Tafel slope of 52 mV.dec(-1) for ORR, and overpotentials of 0.31 V at 10 mA |
Abstract:
|
Peer Reviewed |
Materia(s):
|
-Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica -Cations--chemistry -Nanoparticles -ORR -OER -manganese oxide -cobalt oxide -colloidal -electrocatalysis -cation exchange -TEMPERATURE-PROGRAMMED REDUCTION -ZINC-AIR BATTERIES -N-DOPED CARBON -WATER OXIDATION -CATALYTIC-ACTIVITY -BIMETALLIC CATALYSTS -Cations -Nanopartícules |
Derechos:
|
|
Tipo de documento:
|
Artículo - Versión presentada Artículo |
Compartir:
|
|