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In Situ Generation and Stabilization of Accessible Cu/Cu 2 O Heterojunctions inside Organic Frameworks for Highly Efficient Catalysis
Author(s) -
Chen Kai,
Ling JiaLong,
Wu ChuanDe
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201913811
Subject(s) - metal organic framework , catalysis , furfuryl alcohol , furfural , materials science , acrylate , noble metal , copper , chemical engineering , metal , polymerization , ligand (biochemistry) , oxide , chemistry , organic chemistry , copolymer , polymer , composite material , metallurgy , adsorption , engineering , biochemistry , receptor
Heterostructural metal/metal oxides are the very promising substituents of noble‐metal catalysts; however, generation and further stabilization of accessible metal/metal oxide heterojunctions are very difficult. A strategy to encapsulate and stabilize Cu/Cu 2 O nanojunctions in porous organic frameworks in situ is developed by tuning the acrylate contents in copper‐based metal–organic frameworks (Cu‐MOFs) and the pyrolytic conditions. The acrylate groups play important roles on improving the polymerization degree of organic frameworks and generating and stabilizing highly dispersed and accessible Cu/Cu 2 O heteronanojunctions. As a result, pyrolysis of the MOF ZJU‐199, consisting of three acrylates per ligand, generates abundant heterostructural Cu/Cu 2 O discrete domains inside porous organic matrices at 350 °C, demonstrating excellent catalytic properties in liquid‐phase hydrogenation of furfural into furfuryl alcohol, which are much superior to the non‐noble metal‐based catalysts.