Facile Incorporation of Au Nanoparticles into an Unusual Twofold Entangled Zn(II)-MOF with Nanocages for Highly Efficient CO<sub>2</sub> Fixation under Mild Conditions WuYun-Long YangGuo-Ping ChengShan QianJinjie FanDaidi WangYao-Yu 2019 Herein, a new porous Zn­(II)-based metal–organic framework (MOF <b>1</b>) has been prepared, the structure of which featured a twofold entangled motif based on two typical secondary building units (SBUs). The gas sorption studies indicated that MOF <b>1</b> may be explored as a useful platform to encapsulate metallic nanoparticles. Then the Au@<b>1</b> composite has been prepared via a facile incorporation method without extra reducing agents. The Au@<b>1</b> composite has been fully characterized by HRTEM, SEM-EDX, PXRD, gas sorption, XPS, ICP, etc. Catalytic experiments showed that the Au@<b>1</b> composite had a perfect catalytic performance in CO<sub>2</sub> fixation for epoxides with different substituents under mild conditions.