Zhang Qing, Wu Zhengming, Lv Yuan, Li Yali, Zhao Yajing, Zhang Rui, Xiao Yushuang, Shi Xiaofei, Zhang Danrui, Hua Rui, Yao Jianlin, Guo Jun, Huang Rong, Cui Yi, Kang Zhenhui, Goswami Subhadip, Robison Lee, Song Kepeng, Li Xinghua, Han Yu, Chi Lifeng, Farha Omar K, Lu Guang
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.
Angew Chem Int Ed Engl. 2019 Jan 21;58(4):1123-1128. doi: 10.1002/anie.201808465. Epub 2018 Dec 17.
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.
在基底上制备具有可控厚度的金属有机框架（MOF）薄膜，对于许多实现功能集成和性能优化的应用而言愈发关键。在此，我们报道了一种简便的阴极沉积工艺，该工艺能够大面积制备厚度高度可调的沸石咪唑酯骨架（ZIF-8、ZIF-71和ZIF-67）均匀薄膜，厚度范围约为24纳米至数百纳米。重要的是，这种氧还原引发的阴极沉积不会导致还原金属（锌和钴）的电镀。在没有支持电解质的情况下，它也能经济高效地运行，并有助于在ZIF薄膜内构建明确的亚微米级异质结构。
