期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 8, 页码 2768-2772出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201510812
关键词
anion separation; cationic frameworks; ion exchange; metal-organic frameworks
资金
- National Science Foundation, Division of Materials Research [1309347]
- W. M. Keck Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1309347] Funding Source: National Science Foundation
Cationic frameworks can selectively trap anions through ion exchange, and have applications in ion chromatography and drug delivery. However, cationic frameworks are much rarer than anionic or neutral ones. Herein, we propose a concept, preemptive coordination ( PC), for targeting positively charged metal-organic frameworks (P-MOFs). PC refers to proactive blocking of metal coordination sites to preclude their occupation by neutralizing ligands such as OH-. We use 20 MOFs to show that this PC concept is an effective approach for developing P-MOFs whose high stability, porosity, and anion-exchange capability allow immobilization of anionic nucleotides and coenzymes, in addition to charge-and size-selective capture or separation of organic dyes. The CO2 and C2H2 uptake capacity of 117.9 cm(3) g(-1) and 148.5 cm(3) g(-1), respectively, at 273 K and 1 atm, is exceptionally high among cationic framework materials.
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