期刊
NANO RESEARCH
卷 12, 期 2, 页码 437-440出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-018-2235-1
关键词
ultrathin nanosheet; metal-organic framework; Lewis acid site; Knoevenagel condensation
类别
资金
- National Key Basic Research Program of China [2014CB931801, 2016YFA0200700]
- National Natural Science Foundation of China [21890381, 21721002, 21475029, 21722102, 51672053, 21303029]
- Beijing Natural Science Foundation [2182087]
- Frontier Science Key Project of Chinese Academy of Sciences [QYZDJ-SSW-SLH038]
- K. C. Wong Education Foundation
- Youth Innovation Promotion Association CAS [2016036]
Ultrathin metal-organic framework (MOF) nanosheets are attracting great interest in catalysis due to their unique and intriguing two-dimensional (2D) features. Although many progresses have been achieved, it is still highly desirable to develop novel strategies for controllable synthesis of the well-defined ultrathin MOF nanosheets. Herein we report a polyvinylpyrrolidone (PVP)-assisted route to synthesize the ultrathin Ni-MOF nanosheets characteristic of 1.5 nm in thickness, in which PVP is reacted with 2-aminoterephthalic acid (H2BDC-NH2) via formation of C=N bond, followed by coordination with Ni2+ ions to form the ultrathin MOF nanosheets. Impressively, when used in the Knoevenagel condensation reactions of propane dinitrile with different aldehydes, ultrathin Ni-MOF nanosheets display the significantly enhanced catalytic activity and good stability in respect with the bulk Ni-MOF, mainly owing to the exposed active sites as well as facile mass transfer and diffusion of substrates and products.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据