化学
星团(航天器)
扩展X射线吸收精细结构
吸附
连接器
氧烷
金属有机骨架
金属
限制
缺少数据
有机化学
吸收光谱法
谱线
吸附
工程类
物理
机器学习
操作系统
机械工程
量子力学
程序设计语言
计算机科学
天文
作者
Xiao Feng,Himanshu Sekhar Jena,Chidharth Krishnaraj,Daniel Arenas Esteban,Karen Leus,Guangbo Wang,Jiamin Sun,Martina Rüscher,Janis Timoshenko,Beatriz Roldán Cuenya,Sara Bals,Pascal Van Der Voort
摘要
The differentiation between missing linker defects and missing cluster defects in MOFs is difficult, thereby limiting the ability to correlate materials properties to a specific type of defects. Herein, we present a novel and easy synthesis strategy for the creation of solely "missing cluster defects" by preparing mixed-metal (Zn, Zr)-UiO-66 followed by a gentle acid wash to remove the Zn nodes. The resulting material has the reo UiO-66 structure, typical for well-defined missing cluster defects. The missing clusters are thoroughly characterized, including low-pressure Ar-sorption, iDPC-STEM at a low dose (1.5 pA), and XANES/EXAFS analysis. We show that the missing cluster UiO-66 has a negligible number of missing linkers. We show the performance of the missing cluster UiO-66 in CO2 sorption and heterogeneous catalysis.
科研通智能强力驱动
Strongly Powered by AbleSci AI