Abstract
Hollow micro-/nanostructures with controllable shape, size, and composition are an intriguing class of porous materials with a promising potential for various applications. Metal-organic frameworks (MOFs) have been attractive as promising precursors for preparing carbon materials with various kinds of nanoartchitectures owing to the rich variety in their composition, morphology, and structure. Herein, we report a glucose-assisted hydrothermal method for directly transforming MOFs into hollow carbonaceous materials. During the hydrothermal reaction, the MOF particles (zeolitic imidazolate frameworks-8, ZIF-8) are decomposed, which is induced by the acid generated from the hydrolysis of glucose. At the same time, the species released from the decomposed MOF continuously diffuse out and react with the glucose-derived polymers, resulting in the formation of hollow Zn-containing carbonaceous composites. Following calcination at 900 °C and 500 °C under a nitrogen atmosphere, hollow carbon and zinc oxide/carbon (ZnO/C) materials can be obtained, respectively. The obtained ZnO/C materials with hollow interiors exhibit more active sites, which are supported by their superior electrochemical performance for supercapacitor applications. The proposed method in this work provides a pathway for synthesizing a variety of multicompositional inorganic hollow structures from MOFs, which would facilitate their potential use in practical applications.
| Original language | English |
|---|---|
| Pages (from-to) | 4401-4408 |
| Number of pages | 8 |
| Journal | Chemistry of Materials |
| Volume | 30 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2018 Jul 10 |
Bibliographical note
Funding Information:We thank the Ministry of Science and Technology (MOST) of Taiwan (105-2218-E-155-007; 105-2221-E-002-003-MY3; 105-2221-E-002-227-MY3; 105-2622-E-155-003-CC2) and the Aim for Top University Project at National Taiwan University (106R7828; 106R890702; 107L7828; 107L9008) for the funding support. This work was partially supported by the Australian Research Council (ARC) Future Fellow (Grant FT150100479) JSPS KAKENHI (Grants 17H05393 and 17K19044), and the research fund by the Suzuken Memorial Foundation, the Taishan Scholar Program of Shandong Province of China (ts20110829), and an International Energy Joint R&D Program (20168510011350) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Korean government. The authors thank New Innovative Technology (NIT) for helpful suggestions and discussions on materials fabrication.
Funding Information:
We thank the Ministry of Science and Technology (MOST) of Taiwan (105-2218-E-155-007; 105-2221-E-002-003-MY3; 105-2221-E-002-227-MY3; 105-2622-E-155-003-CC2) and the Aim for Top University Project at National Taiwan University (106R7828; 106R890702; 107L7828; 107L9008) for the funding support. This work was partially supported by the Australian Research Council (ARC) Future Fellow (Grant FT150100479), JSPS KAKENHI (Grants 17H05393 and 17K19044), and the research fund by the Suzuken Memorial Foundation, the Taishan Scholar Program of Shandong Province of China (ts20110829), and an International Energy Joint R&D Program (20168510011350) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Korean government. The authors thank New Innovative Technology (NIT) for helpful suggestions and discussions on materials fabrication.
Publisher Copyright:
© 2018 American Chemical Society.
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
- Materials Chemistry