Monday, January 1, 2018

Encapsulation of homogeneous catalysts in mesoporous materials by diffusion limited ALD

Researches from the Chinese Academy of Sciences demonstrate ALD encapsulation of metal complexes into nanochannels of mesoporous materials is. The pore size of the hollow plug is precisely controlled on the sub-nanometer scale by the number of ALD cycles to fit various metal complexes with different molecular sizes. They claim that this ALD-assisted encapsulation method can be extended to the encapsulation of other homogeneous catalysts into different mesoporous materials for various heterogeneous reactions. Please find the paper below!
Beautiful TEM analysis of carbon nanofibers that have beencoated with 400 cycles TiO2 (supporting information, LINK)
Reference: Zhang, S., Zhang, B., Liang, H., Liu, Y., Qiao, Y. and Qin, Y. (2017), Encapsulation of Homogeneous Catalysts in Mesoporous Materials Using Diffusion-Limited Atomic Layer Deposition. Angew. Chem. Int. Ed.. doi: 10.1002/anie.201712010

Picture from Tweet above