TY - JOUR
T1 - Short hydrogen-bond network confined on COF surfaces enables ultrahigh proton conductivity
AU - Shi, Benbing
AU - Pang, Xiao
AU - Li, Shunning
AU - Wu, Hong
AU - Shen, Jianliang
AU - Wang, Xiaoyao
AU - Fan, Chunyang
AU - Cao, Li
AU - Zhu, Tianhao
AU - Qiu, Ming
AU - Yin, Zhuoyu
AU - Kong, Yan
AU - Liu, Yiqin
AU - Zhang, Mingzheng
AU - Liu, Yawei
AU - Pan, Feng
AU - Jiang, Zhongyi
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2022/12/1
Y1 - 2022/12/1
N2 - The idea of spatial confinement has gained widespread interest in myriad applications. Especially, the confined short hydrogen-bond (SHB) network could afford an attractive opportunity to enable proton transfer in a nearly barrierless manner, but its practical implementation has been challenging. Herein, we report a SHB network confined on the surface of ionic covalent organic framework (COF) membranes decorated by densely and uniformly distributed hydrophilic ligands. Combined experimental and theoretical evidences have pointed to the confinement of water molecules allocated to each ligand, achieving the local enrichment of hydronium ions and the concomitant formation of SHBs in water-hydronium domains. These overlapped water-hydronium domains create an interconnected SHB network, which yields an unprecedented ultrahigh proton conductivity of 1389 mS cm−1 at 90 °C, 100% relative humidity.
AB - The idea of spatial confinement has gained widespread interest in myriad applications. Especially, the confined short hydrogen-bond (SHB) network could afford an attractive opportunity to enable proton transfer in a nearly barrierless manner, but its practical implementation has been challenging. Herein, we report a SHB network confined on the surface of ionic covalent organic framework (COF) membranes decorated by densely and uniformly distributed hydrophilic ligands. Combined experimental and theoretical evidences have pointed to the confinement of water molecules allocated to each ligand, achieving the local enrichment of hydronium ions and the concomitant formation of SHBs in water-hydronium domains. These overlapped water-hydronium domains create an interconnected SHB network, which yields an unprecedented ultrahigh proton conductivity of 1389 mS cm−1 at 90 °C, 100% relative humidity.
UR - https://www.nature.com/articles/s41467-022-33868-8
UR - http://www.scopus.com/inward/record.url?scp=85141145320&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-33868-8
DO - 10.1038/s41467-022-33868-8
M3 - Article
C2 - 36335107
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
ER -