期刊
CHEMICAL SCIENCE
卷 8, 期 11, 页码 7560-7565出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7sc03067c
关键词
-
资金
- 973 Project [2014CB845602]
- NSFC [21290173, 21473260, 91622109, 21731007]
- National Postdoctoral Program for Innovative Talents [BX201600195]
The pore size and framework flexibility of hosts are of vital importance for molecular recognition and related applications, but accurate control of these parameters is very challenging. We use the slight difference of metal ion size to achieve continuous hundredth-nanometer pore-size adjustments and drastic flexibility modulations in an ultramicroporous metal-organic framework, giving controllable N-2 adsorption isotherm steps, unprecedented/reversed loading-dependence of H-2 adsorption enthalpy, quadrupole-moment sieving of C2H2/CO2, and an exceptionally high working capacity for C2H2 storage under practical conditions (98 times that of an empty cylinder). In situ single-crystal X-ray diffraction measurements and multilevel computational simulations revealed the importance of pore-surface pockets, which utilize their size and electrostatic potential to smartly recognize the molecular sizes and quadruple moments of gas molecules to control their accessibility to the strongest adsorption sites.
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