RT Conference Proceedings
T1 Proton conductivity properties of novel tin(II) phosphonates
A1 Cañamero-Cebrián, Fernando
A1 Cabeza-Díaz, Aurelio
A1 Vílchez-Cózar, Álvaro
A1 Bazaga-García, Montse
A1 Ramírez-Losilla, Enrique
A1 Olivera-Pastor, Pascual
A1 Pérez-Colodrero, Rosario Mercedes
K1 Cristalografía - Congresos
AB Metal phosphonates (MPs), a subclass of coordination polymers, may exhibit acidic groups such as P-OH, SO3H, COOH, N+-H, etc. Combining these features with interesting metals make them highly appealing in the field of fuel cells and electrolysers as potential proton conductors [1,2].In this communication, we report the synthesis, characterization, and proton conduction properties of a series of Sn2+ hydroxyphosphonoacetates with a different water content, obtained at RT, 80 ºC and 150 ºC. The anhydrous 150 ºC-synthesized phase crystallizes in the monoclinic system, s.g. P 21/n. Its crystal structure, solved ab initio from laboratory powder X-ray diffraction data, is composed of distorted pyramidal Sn2+ polyhedra connected through the oxygen atoms from the phosphonate, hydroxyl, and carboxylic groups of the ligand (Figure 1). The proton conductivity was found to increase with the water content. A study of the possible effect of hydrated amorphous phases on proton conductivity is underway.
YR 2024
FD 2024-01-16
LK https://hdl.handle.net/10630/29616
UL https://hdl.handle.net/10630/29616
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech;PID2019-110249RB-I00/AEI/10.13039/501100011033; TED2021–129836B-I00/AEI/10.13039/501100011033/Unión Europea NextGenerationEU/PRTR (MICIU,Spain);P20-00416 (Junta de Andalucia, Spain/FEDER)
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026