Abstract
The development of nonenzymatic glucose sensors with favorable electrocatalytic activity and chemical stability is crucial in various fields. Therefore, in this study, we systematically investigate a series of ZIF-ZnxCo1-x materials (0 ≤ x ≤ 1) and demonstrate that the appropriate combination of Zn2+ and Co2+ within a metal-organic framework (MOF) delivers a promising platform for developing a glucose sensor with good glucose sensitivity and superior chemical stability. Herein, ZIF-Zn0.5Co0.5 was selected as the optimal glucose-sensing material owing to its high Co2+ content and well-preserved crystallinity and porosity after base treatment for 14 days. Remarkably, ZIF-Zn0.5Co0.5 showed superior electrocatalytic glucose-sensing performance compared to ZIF-67(Co) owing to its excellent chemical stability. The observed glucose-sensing performance was comparable to those of benchmark cobalt-based electrocatalysts. Furthermore, ZIF-Zn0.5Co0.5 exhibited excellent selectivity for glucose over possible interfering species, as well as reusability and electrochemical stability, thereby suggesting its potential applicability for nonenzymatic glucose sensing.
| Original language | English |
|---|---|
| Pages (from-to) | 11702-11709 |
| Number of pages | 8 |
| Journal | ACS Sustainable Chemistry and Engineering |
| Volume | 10 |
| Issue number | 35 |
| DOIs | |
| Publication status | Published - 2022 Sept 5 |
Bibliographical note
Funding Information:This work was supported by the National Research Foundation of Korea (NRF) grants funded by the Korea government (MSIT) (nos. 2020R1A5A1019131 and 2022R1A2B5B02002577).
Publisher Copyright:
© 2022 American Chemical Society.
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Environmental Chemistry
- Chemical Engineering(all)
- Renewable Energy, Sustainability and the Environment
