Two‐Dimensional‐on‐Three‐Dimensional Metal‐Organic Frameworks for Photocatalytic H2 Production

A MOF‐on‐MOF heterostructure is attractive in material science because of its potential combined effects in catalysis. However, precisely controlling the growth pattern at the metal–organic framework (MOF) nucleation stage to manipulate the metallic composition and structure dimensionality remain a...

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Vydáno v:Angewandte Chemie International Edition Ročník 61; číslo 40; s. e202211031 - n/a
Hlavní autoři: Wang, Yang, Zhang, Zhiyong, Li, Jing, Yuan, Yiwen, Yang, Jun, Xu, Wei, An, Pengfei, Xi, Shibo, Guo, Jianping, Liu, Bo, Li, Jianfeng
Médium: Journal Article
Jazyk:angličtina
Vydáno: Weinheim Wiley Subscription Services, Inc 04.10.2022
Vydání:International ed. in English
Témata:
2D-on-3D MOF
Anti-Epitaxial Growth
Cadmium
Catalysis
Copper
Epitaxial growth
Growth patterns
H2 Production
Heterostructures
Metal-organic frameworks
Nucleation
Photocatalysis
Polyvinylpyrrolidone
Seeds
“Dimensionality-Hybrid” Effect
ISSN:1433-7851, 1521-3773, 1521-3773
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Shrnutí:A MOF‐on‐MOF heterostructure is attractive in material science because of its potential combined effects in catalysis. However, precisely controlling the growth pattern at the metal–organic framework (MOF) nucleation stage to manipulate the metallic composition and structure dimensionality remain a challenge. Herein, we introduce a polyvinylpyrrolidone‐assist kinetic‐control strategy to achieve the “anti‐epitaxial growth” pattern of a foreign MOF nucleus on the (111) facets of UiO‐66‐NH2 octahedron seeds, and construct diverse two‐dimensional‐on‐three‐dimensional (2D‐on‐3D) MOF heterostructures (2D‐on‐3D Cu, Zn, Cd, Co, and Ni). Notably, the 2D‐on‐3D Cu exhibits a unique “dimensionality‐hybrid” effect in photocatalysis which led to a significant photoactivity enhancement over those of the traditional “dimensionality‐identical” 2D, 3D and 3D‐on‐3D MOF structures. The synthesis of two‐dimensional‐on‐three‐dimensional (2D‐on‐3D) metal–organic framework (MOF) heterostructures is achieved for the first time. In photocatalytic H2 production, the 2D‐on‐3D MOF shows a unique “dimensionality‐hybrid” effect, which led to a significant photoactivity enhancement over those of the traditional “dimensionality‐identical” 2D, 3D, and 3D‐on‐3D MOF structures.
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ISSN:1433-7851
1521-3773
1521-3773
DOI:10.1002/anie.202211031