2026-06-05T17:22:03Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/278662026-02-03T11:56:48Zcom_10630_2254col_10630_37959

Electrocatalytic properties of spray-drying-synthesized cobalt or nickel phosphonate-derived materials. Cabeza-Díaz, Aurelio Vílchez-Cózar, Álvaro Pérez-Colodrero, Rosario Mercedes Bazaga-García, Montse Cañamero-Cebrián, Fernando Olivera-Pastor, Pascual Catálisis Electrólisis As a class of coordination polymers (CPs), metal phosphonates (MPs) are constructed by coordination bonds connecting metal sites and phosphonate (RPO32−) ligands, where the metal sites are dispersed uniformly at the atomic level. This feature facilitates the construction of OER/HER transition metal phosphide (TMP) pre-catalysts, making them very attractive precursors of Non-Precious Metal Electrocatalysts (NPMCs) [1, 2] In this work, we report the synthesis and crystal structures of several transition-metal phosphonates derived from the phosphonopropionic acid (PPA), [FexM1-x(HO3PCH2CH2COO)2(H2O)2; M=Co2+ or Ni2+; x= 0, 0.2]. These solids have been prepared for the first time by spray-drying synthesis directly on carbon paper (CP) (Scheme 1). Pyrolysis of spray-dried materials in 5%-H2/Ar led to TMP-based energy-conversion electrocatalysts. As compared with other conventional procedures, this synthetic methodology allowed to improve the water-splitting activity. 2023-10-18T08:59:26Z 2023-10-18T08:59:26Z 2023-10-18T08:59:26Z 2023 conference output https://hdl.handle.net/10630/27866 eng 4th International Conference on Phosphonate Chemistry, Science and Technology, 4-ICOPHOS2023 Heracklion, Creta (Grecia) Octubre, 2023 http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional