Angew. Chem. Int. Ed. : Oxygen‐Assisted Cathodic Deposition of Zeolitic Imidazolate Frameworks with Controlled Thickness

Date:2018-11-25Keywords:Metal–organic frameworksView:1288

OxygenAssisted Cathodic Deposition of Zeolitic Imidazolate Frameworks with Controlled Thickness

Authors :

Qing Zhang,1,+ Zhengming Wu,1,+ Yuan Lv,Yali Li,Yajing Zhao,Rui Zhang,Yushuang Xiao,Xiaofei Shi,Danrui Zhang,Rui Hua,1Jianlin Yao,Jun Guo,3Rong Huang,Yi Cui,Zhenhui Kang,1 Subhadip Goswami,Lee Robison,Kepeng Song,Xinghua Li,Yu Han,6 Lifeng Chi,1,Omar K. Farha,5,Guang Lu1,*

Insititutes :

1 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 DevicesSoochow University199 Ren’ai Road, Suzhou215123, China

2 College of Chemistry, Chemical Engineering and Materials Science Institution, Soochow University199 Ren’ai Road, Suzhou215123, China

3 Analysis and Testing Center, Soochow University199 Ren’ai Road, Suzhou215123China

Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences398 Ruoshui Road, Suzhou, 215123, China

Department of Chemistry, Northwestern University Evanston, IL,60208USA

Advanced Membranes and Porous Materials Center, PhysicalSciences and Engineering Division, King Abdullah University of Science and Technology (KAUST)Thuwal, 23955-6900, Saudi Arabia

Abstract :

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 facilec athodic 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 submicrometer-sized heterogeneous structures within ZIF films.

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