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Synthesis of Hierarchical Porous Metals Using Ionic‐Liquid‐Based Media as Solvent and Template
Author(s) -
Kang Xinchen,
Sun Xiaofu,
Ma Xiaoxue,
Zhang Pei,
Zhang Zhanrong,
Meng Qinglei,
Han Buxing
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201706188
Subject(s) - ionic liquid , solvent , porosity , porous medium , chemical engineering , ionic bonding , materials science , nanotechnology , chemistry , organic chemistry , catalysis , ion , engineering , composite material
It was found that nanodomains existed in the ionic liquid (IL)‐based ternary system containing IL 1‐ethyl‐3‐methylimidazole tetrafluoroborate (EmimBF 4 ), IL 1‐decyl‐3‐methylimidazole nitrate (DmimNO 3 ) and water, and the size distribution of the domains varied continuously with the composition of the solution. A strategy to synthesize hierarchical porous metals using IL‐based media as solvent and template is proposed, and the hierarchical porous Ru and Pt metals were prepared by the assembly of metal clusters of about 1.5 nm using this new method. It is demonstrated that the metals have micropores and mesopores, and the size distribution is tuned by controlling the composition of the solution. Porous Ru was used for a series of hydrogenation reactions. It has an outstanding catalytic performance owing to its special morphology and structure.