Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 20, Pages 9611-9617Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta10958f
Keywords
-
Funding
- National Natural Science Foundation of China [21231002, 21371029, 21571030, 91622108, 21671033]
- Open Research Fund of the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (Jilin University) [2015. 01]
Ask authors/readers for more resources
Proton conductivity is traditionally affected by proton concentration, mobility, hopping sites, etc. in metal-organic frameworks (MOFs). The influence of the profile of proton-conducting pathway has not been demonstrated due to lack of a suitable model. MIL-101 contains two types of tunnels with zigzag and linear profiles constructed by cages with different sizes. However, it is hard to construct an exclusive proton-conducting pathway with only one profile in MIL-101 because the introduced carriers usually locate without targeting a specific location. Keggin-type H3PW12O40 (HPW) has a unique nano size, which is between the window sizes of the cages in MIL-101, strong acidity, good stability, and abundant proton-hopping sites. Herein, two types of hydrogen bond networks were constructed by situating HPWs in the targeting pores of MIL-101. Linear pathways provide about 2.1-fold faster proton diffusion rates compared to zigzag pathways. Further modification of an HPW-impregnated MIL-101 with flexible polyamine resulted in a conductivity of 1.52 x 10(-2) S cm(-1).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available