2026-05-31T22:54:35Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/180852026-02-03T12:31:18Zcom_10630_2254col_10630_37959

Single and solid solutions metal carboxyphosphonates as precursors for phosphorous-containing electrocatalysts López Vergara, Adrián El-Refaei, S.M. Russo, Patricia A. Vilchez, A Losilla, Enrique R. Porras-Vázquez, José Manuel Olivera-Pastor, Pascual Pinna, N Cabeza-Díaz, Aurelio Química inorgánica Co1-xFex-HPAA metal phosphonates were prepared and pyrolyzed under N2 and H2/Ar flows. The result-ing powders were structural and electrochemically characterised by XRD and CV, respectively. The ob-tained materials possess different structures depending on the temperature and pyrolysis atmosphere. Samples pyrolized in N2 at 1000 ºC are monophasic diphosphates, while phosphides form in H2/Ar at 850 ºC. Cyclic voltammetry studies indicate that the Co0.5Fe0.5HPAA sample, pyrolized in H2/Ar, exhibits the best behaviour, but further studies are needed to fully understand the role of graphene oxide and pyrazine. 2019-07-19T07:13:16Z 2019-07-19T07:13:16Z 2019 2019-07-19 conference output https://hdl.handle.net/10630/18085 eng HYCELTEC 2019 Barcelona, España 01/07/2019 http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional