|
|
JAIST Repository >
School of Materials Science >
Articles >
Journal Articles >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10119/19947
|
| Title: | Influence of Humidity on Layer-by-Layer Growth and Structure in Coordination Networks |
| Authors: | Aoki, Kentaro
Matsuzawa, Toshitaka
Suetsugu, Kota
Hara, Mitsuo
Nagano, Shusaku
Nagao, Yuki |
| Issue Date: | 2024-04-01 |
| Publisher: | American Chemical Society |
| Magazine name: | Inorganic Chemistry |
| Volume: | 63 |
| Number: | 15 |
| Start page: | 6674 |
| End page: | 6682 |
| DOI: | 10.1021/acs.inorgchem.3c04526 |
| Abstract: | Metal–organic frameworks (MOFs) are promising materials because of their high designability of pores and functionalities. Especially, MOF thin films and their properties have been investigated toward the application in nanodevices. Typically, MOF thin films are fabricated using a bottom-up method such as layer-by-layer (LbL) growth in air. Because the water molecules can coordinate and replace with organic linkers during synthesis, humidity conditions will be expected to influence the LbL growth processes. In this study, we fabricated MOF thin films composed of Zn 2+, tetrakis-(4-carboxyphenyl)-porphyrin (TCPP), and 4,4’-bipyridyl (bpy) at 10% and 40% relative humidity (RH) conditions. Then we investigated the humidity effects on chemical compositions of TCPP and bpy, periodic structure, orientation, and surface morphology. At high RH, coordination replacement of water with the organic linkers becomes more competitive than that at low RH, resulting in a different TCPP:bpy composition ratio between the two RH conditions. Also, more frequent coordination replacements of water with the organic linkers at high RH led to formation of phases other than that observed at low RH, loss of growth orientation and rough surface. The findings clarified the importance of controlling RH condition during LbL growth to obtain the desired coordination networks. |
| Rights: | Kentaro Aoki, Toshitaka Matsuzawa, Kota Suetsugu, Mitsuo Hara, Shusaku Nagano, Yuki Nagao, Inorganic Chemistry, 2024,63, 15, 6674–6682. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright (c) American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.3c04526. |
| URI: | http://hdl.handle.net/10119/19947 |
| Material Type: | author |
| Appears in Collections: | c10-1. 雑誌掲載論文 (Journal Articles)
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| Y-NAGAO-M-0620-2.pdf | | 1429Kb | Adobe PDF | View/Open |
|
All items in DSpace are protected by copyright, with all rights reserved.
|
