RT Journal Article
T1 Lithium-ion conduction in liquid-crystalline columnar Pd(II) nanoassemblies
A1 Cuerva de Alaiz, Cristian
A1 Caro Campos, Irene
A1 Cano Esquivel, María Mercedes
A1 Rodríguez Castellón, Enrique
A1 Kuhn, Alois
A1 García Alvarado, Flaviano
A1 Schmidt, Rainer
AB Liquid crystalline electrolytes are emerging as a promising class of functional materials for energy storage applications. They offer the ability to operate under anhydrous conditions without the presence of acids or flammable solvents, allowing high operating temperatures. Herein, the liquid crystalline phase of a bispyrazolate Pd(II) metallomesogen is used as a platform for Li-ion conduction, taking advantage of the existence of nanochannels in the hexagonal columnar mesophase. Li-doped liquid crystal composites have been prepared with different lithium content, and their mesomorphic properties and ionic conductivities were studied. It was found that the intercalation of lithium ions between molecules does not hinder the formation of the mesophase but rather extends the temperature range in which it is stable due to the existence of ion–dipole interactions between the lithium ions and the uncoordinated N-pyrazolic atoms, leading to lower melting and higher clearing temperatures. High Li-ion conductivity was found in the solid and liquid crystalline phases by complex impedance spectroscopy. The optimally doped composite with an 8:2 (metallomesogen:LiTFSI) molar ratio reaches conductivity values as high as 1.89 × 10–4 Ω–1 cm–1. The work presented is expected to pave the way for a promising class of liquid crystalline Li-ion electrolytes based on metallomesogens.
PB American Chemical Society
SN 1944-8244
YR 2025
FD 2025-06
LK https://hdl.handle.net/20.500.14352/124964
UL https://hdl.handle.net/20.500.14352/124964
LA eng
NO C. Cuerva, I. Caro-Campos, M. Cano, E. Rodríguez-Castellón, A. Khun, F. García-Alvarado, R. Schmidt. ACS Appl. Mater. Interfaces 2025, 17, 30, 42915–42924
NO ©2025 The Authors.CT19/23-INVM125
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación  (España)
NO European Commission
NO Ministerio de Trabajo y Economía Social (España)
DS Docta Complutense
RD 24 dic 2025