介孔分子筛固载离子液体及其在催化有机反应中的应用

将离子液体固载于载体物质上,可提高其利用率,降低使用成本。固载离子液体的基本方法有浸渍法、键合法、溶胶-凝胶法等。本文综述了近年来用介孔分子筛固载离子液体以及将其用于催化有机反应的研究进展。     

The instability analysis of self-gravitation systems under the perturbation with orbital angular momentum

Based on plasma kinetic theory, the instabilities of self-gravitation systems under perturbation with orbital angular momentum(OAM) are investigated, and the concept of twisted Jeans mode is introduced to describe the new phenomenon. The result shows that the growth rate of the Jeans instability is enhanced with the OAM parameter increased, while the critical wave number is consistent with the classical Jeans critical value. It is expected that the present results would give more insight into th...