Eutectic CsHSO 4 -Coordination Polymer Glasses with Superprotonic Conductivity.

Autor: Ma N; Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan., Horike N; Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan., Lombardo L; Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan., Kosasang S; Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan., Kageyama K; Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan., Thanaphatkosol C; Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand., Kongpatpanich K; Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand., Otake KI; Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan., Horike S; Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.; Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.; Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand.
Jazyk: angličtina
Zdroj: Journal of the American Chemical Society [J Am Chem Soc] 2022 Oct 12; Vol. 144 (40), pp. 18619-18628. Date of Electronic Publication: 2022 Oct 03.
DOI: 10.1021/jacs.2c08624
Abstrakt: Superprotonic phase transition in CsHSO 4 allows fast protonic conduction, but only at temperatures above the transition temperature of 141 °C ( T c ). Here, we preserve the superprotonic conductivity of CsHSO 4 by forming a binary CsHSO 4 -coordination polymer glass system, showing eutectic melting. Their anhydrous proton conductivities below T c are at least 3 orders of magnitude higher than CsHSO 4 without compromising conductivity at higher temperatures or the need for humidification, reaching 6.3 mS cm -1 at 180 °C. The glass also introduces processability to the conductor, as its viscosity below 10 3 Pa·s can be achieved at 65 °C. Solid-state NMR and X-ray pair distribution functions reveal the oxyanion exchanges and the origin of the preserved conductivity. Finally, we demonstrate the preparation of a micrometer-scale thin-film proton conductor showing low resistivity with high transparency (transmittance >85% between 380-800 nm).
Databáze: MEDLINE
Externí odkaz: