RT Conference Proceedings
T1 Synthesis and characterisation of TiP2O7 derived from Ti(IV) aminotris(methylenephosphonate) as proton conductor for intermediate temperature fuel cells
A1 Galindo-Larrahondo, Jorge Armando
A1 Cañamero-Cebrián, Fernando
A1 Vílchez-Cózar, Álvaro
A1 Bazaga-García, Montse
A1 Pérez-Colodrero, Rosario Mercedes
A1 Ramírez-Losilla, Enrique
A1 Olivera-Pastor, Pascual
A1 Cabeza-Díaz, Aurelio
K1 Compuestos organofosforados
K1 Electrólisis
AB Metal phosphonates, built up of phosphonate linkers bonded to metal ions, havegarnered significant attention due to their hybrid organic-inorganic frameworks andproperties as proton-conducting materials, which make them promising candidates forproton exchange membranes in fuel cells (PEMFCs). Specifically, tetravalent metalpyrophosphates are attractive for fuel cells working in intermediate temperatures(ITFCs), between 100 and 300 ºC.In this study, we present the synthesis and characterization of a new titanium(IV)aminotris(methylenephosphonate), Ti[(HO₃PCH₂)(O₃PCH₂)NH(CH₂PO₃)]·2H₂O (Ti-ATMP), which, upon calcination at 600 °C in air, leads to the formation of crystallineTiP₂O₇ (Ti-ATMP@600). Proton conductivities, measured at 90 °C and 95% relativehumidity (RH), were 1.6·10⁻³ S·cm⁻¹, for Ti-ATMP, and 2.3 × 10-³ S·cm⁻¹, for Ti-ATMP@600, respectively. The activation energy values (E < 0.3 eV) indicate a aGrotthuss proton transfer mechanism for both materials. Currently, Ti-ATMP@600compound is being tested as electrolyte in ITFCs at operating conditions.
YR 2025
FD 2025
LK https://hdl.handle.net/10630/39827
UL https://hdl.handle.net/10630/39827
LA eng
NO Spanish Ministry of Economy, Industry and Competitiveness
NO University of Malaga under Plan Propio de Investigación
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026