Postsynthesis Modification of a Porous Coordination Polymer by LiCl To Enhance H⁺ Transport

Abstract

A Ca²⁺ porous coordination polymer with 1D channels was functionalized by the postsynthesis addition of LiCl to enhance the H⁺ conductivity. The compound showed over 10^–2 S cm^–1 at 25 °C and 20% relative humidity. Pulse-field gradient NMR elucidated that the fast H⁺ conductivity was achieved by the support of Li⁺ ion movements in the channel