期刊
NATURE COMMUNICATIONS
卷 12, 期 1, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/s41467-021-24571-1
关键词
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资金
- POSCO Science Fellowship of POSCO TJ Park Foundation
- Brain Korea21FOUR(BK21FOUR) [4199990514310]
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2019R1A5A8080326]
- Technology Innovation Program - Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20012463]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade Industry & Energy (MOTIE) of the Republic of Korea [20183010014470]
- Nano Convergence Foundation - Ministry of Science and ICT (MSIT, Korea) [170720000230]
- Ministry of Trade, Industry, and Energy (MOTIE, Korea) [170720000230]
- National Research Foundation (NRF) of the Korean Government (MSIT) [2020R1A2C301312711]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20012463] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2019R1A5A8080326] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The authors have developed a MiCS method for synthesizing high quality nanocatalyst-embedded C-MOF thin films efficiently, enhancing their performance and expanding their applications.
Conductive metal-organic framework (C-MOF) thin-films have a wide variety of potential applications in the field of electronics, sensors, and energy devices. The immobilization of various functional species within the pores of C-MOFs can further improve the performance and extend the potential applications of C-MOFs thin films. However, developing facile and scalable synthesis of high quality ultra-thin C-MOFs while simultaneously immobilizing functional species within the MOF pores remains challenging. Here, we develop microfluidic channel-embedded solution-shearing (MiCS) for ultra-fast (<= 5mm/s) and large-area synthesis of high quality nanocatalyst-embedded C-MOF thin films with thickness controllability down to tens of nanometers. The MiCS method synthesizes nanoscopic catalyst-embedded C-MOF particles within the microfluidic channels, and simultaneously grows catalyst-embedded C-MOF thin-film uniformly over a large area using solution shearing. The thin film displays high nitrogen dioxide (NO2) sensing properties at room temperature in air amongst two-dimensional materials, owing to the high surface area and porosity of the ultra-thin C-MOFs, and the catalytic activity of the nanoscopic catalysts embedded in the C-MOFs. Therefore, our method, i.e. MiCS, can provide an efficient way to fabricate highly active and conductive porous materials for various applications. The immobilization of catalysts within the pores of conductive metal-organic frameworks (C-MOFs) via facile and scalable methodologies remains challenging. Here the authors report a microfluidic channel-embedded solution shearing process that enables the high throughput, large-area, single-step preparation of Pt nanocatalyst-embedded C-MOF thin films.
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