31 Dec 23:50
by Ruo Zhao,
Zibin Liang,
Song Gao,
Ce Yang,
Bingjun Zhu,
Junliang Zhao,
Chong Qu,
Ruqiang Zou,
Qiang Xu
An energetic metal–organic framework (EMOF) with pre‐imbedded transition‐metal ions serves as a precursor for the fabrication of large carbon networks with hierarchical pores and atomically dispersed metal sites (ADMSs). In their Communication on https://doi.org/10.1002/anie.201811126page 1975 ff., Q. Xu, R. Zou, and co‐workers describe the high‐temperature carbonization of this material: the zinc‐based triazole‐rich nanoparticles puff up to form sub‐millimeter‐scale carbon networks, while the pre‐imbedded transition‐metal ions are transformed into active ADMSs.
12 Jan 22:34
by Yifu Yu, Xue-Jun Wu, Meiting Zhao, Qinglang Ma, Junze Chen, Bo Chen, Melinda Sindoro, Jian Yang, Shikui Han, Qipeng Lu, Hua Zhang
Abstract
The incorporation of metal–organic frameworks (MOFs) into membrane-shaped architectures is of great importance for practical applications. The currently synthesized MOF-based membranes show many disadvantages, such as poor compatibility, low dispersity, and instability, which severely limit their utility. Herein, we present a general, facile, and robust approach for the synthesis of MOF-based composite membranes through the in situ growth of MOF plates in the channels of anodized aluminum oxide (AAO) membranes. After being used as catalysis reactors, they exhibit high catalytic performance and stability in the Knoevenagel condensation reaction. The high catalytic performance might be attributed to the intrinsic structure of MOF-based composite membranes, which can remove the products from the reaction zone quickly, and prevent the aggregation and loss of catalysts during reaction and recycling process.
A MOF reactor: A general, facile, and robust approach is presented for the preparation of MOF-based composite membranes through the in situ growth of MOF plates in the channels of anodized aluminum oxide membranes. The MOF-based composite membranes were used as membrane catalysis reactors, and showed excellent catalytic performance and stability in the Knoevenagel condensation.
