Facet engineering in metal organic frameworks to improve their electrochemical activity for water oxidation
2020
Wan, Jiawei | Liu, Di | Xiao, Hai | Rong, Hongpan | Guan, Sheng | Xie, Feng | Wang, Dingsheng | Li, Yadong
The facet effect has been well demonstrated for nanocrystal catalysis, however it is rarely revealed in metal organic frameworks (MOFs). Herein, we present a facile way to construct 2D zeolitic imidazolate framework-67 (ZIF-67) with dominant exposure of the (002) facets. We discovered that the ZIF-67 (002) facet exhibited the highest catalytic activity for oxygen evolution reaction (OER) among the (002), (011), and (111) facets. Moreover, this facet engineering is also available for ZIF-8 nanocrystals.
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