Oxygen‐Assisted Cathodic Deposition of Zeolitic Imidazolate Frameworks with Controlled Thickness

作     者：Qing Zhang Zhengming Wu Yuan Lv Yali Li Yajing Zhao Rui Zhang Yushuang Xiao Xiaofei Shi Danrui Zhang Rui Hua Jianlin Yao Jun Guo Rong Huang Yi Cui Zhenhui Kang Subhadip Goswami Lee Robison Kepeng Song Xinghua Li Yu Han Lifeng Chi Omar K. Farha Guang Lu 

作者机构：Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Joint International Research Laboratory of Carbon-Based Functional Materials and Devices Soochow University 199 Ren'ai Road Suzhou 215123 China College of Chemistry Chemical Engineering and Materials Science Institution Soochow University 199 Ren'ai Road Suzhou 215123 China Analysis and Testing Center Soochow University 199 Ren'ai Road Suzhou 215123 China Vacuum Interconnected Nanotech Workstation Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences 398 Ruoshui Road Suzhou 215123 China Department of Chemistry Northwestern University Evanston IL 60208 USA Advanced Membranes and Porous Materials Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia 

出 版 物：《Angewandte Chemie》 

年 卷 期：2018年第131卷第4期

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 

主　　题：Dünne Filme Elektrochemie Metall-organische Gerüststrukturen Sauerstoffreduktion Zeolithische Imidazolatgerüste 

摘      要：Processing metal–organic frameworks (MOFs) as films with controllable thickness on a substrate is increasingly crucial for many applications to realize function integration and performance optimization. Herein, we report a facile cathodic deposition process that enables the large‐area preparation of uniform films of zeolitic imidazolate frameworks (ZIF‐8, ZIF‐71, and ZIF‐67) with highly tunable thickness ranging from approximately 24 nm to hundreds of nanometers. Importantly, this oxygen‐reduction‐triggered cathodic deposition does not lead to the plating of reduced metals (Zn and Co). It is also operable cost‐effectively in the absence of supporting electrolyte and facilitates the construction of well‐defined sub‐micrometer‐sized heterogeneous structures within ZIF films.