RT Conference Proceedings
T1 Exploiting Multifunctionality of M2+ (M=Co2+, Ni2+) Phosphides for Electrocatalysis toward HER, OER and ORR
A1 Pérez-Colodrero, Rosario Mercedes
A1 Bazaga-García, Montse
A1 Vílchez-Cózar, Álvaro
A1 Olivera-Pastor, Pascual
A1 Cabeza-Díaz, Aurelio
AB INTRODUCTIONThe scarcity and high cost of Pt and Ru/Ir-based noble metal electrocatalysts forces to design alternativelow-cost and efficient materials for sustainable energy storage and conversion technologies1. Amongthem, phosphorus-containing coordination polymers, such as metal phosphonates and phosphinates,have emerged as potential precursors of transition-metal phosphide (TMP) electrocatalysts2.EXPERIMENTAL STUDYPyrolysis under 5%H2-Ar atmosphere at different temperatures. Electrocatalytic performances were investigatedtoward Oxygen Evolution Reaction (OER), Oxygen Reduction Reaction (ORR) and Hydrogen EvolutionReaction (HER).RESULTS AND DISCUSSIONIn this research-work, we report the synthesis and crystal structure of several families of divalent metal (Co2+,Ni2+) derived from the (2-carboxyethyl)(phenyl)phosphinic acid (CEPPA)3 and etidronic acid4. These solids wereused as precursor of metal phosphides (M2P/MP) by thermal reduction under 5%H2-Ar atmosphere at differenttemperatures and their electrocatalytic performances were investigated toward OER, ORR and HER. Therelationship between M/P molar ratios and/or the M2+ coordination environment in the precursor structures andthe electrocatalytic activity of the prepared metal phosphides will be discussed. The presence/absence of N-dopedcarbon graphitic matrix in the final materials will be also studied
YR 2022
FD 2022-07
LK https://hdl.handle.net/10630/24874
UL https://hdl.handle.net/10630/24874
LA eng
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026