2026-06-01T04:52:58Zhttps://riuma.uma.es/rest/oai/request

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

00925njm 22002777a 4500 dc Cabeza-Díaz, Aurelio author Vílchez-Cózar, Álvaro author Pérez-Colodrero, Rosario Mercedes author Bazaga-García, Montse author Cañamero-Cebrián, Fernando author Olivera-Pastor, Pascual author 2023 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. https://hdl.handle.net/10630/27866 Catálisis Electrólisis Electrocatalytic properties of spray-drying-synthesized cobalt or nickel phosphonate-derived materials.