التفاصيل البيبلوغرافية
| العنوان: |
Facile Fabrication of ZnO-ZnFe2O4 Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H2S Gas Sensor |
| المؤلفون: |
Kee-Ryung Park, Ryun Na Kim, Yoseb Song, Jinhyeong Kwon, Hyeunseok Choi |
| المصدر: |
Materials; Volume 15; Issue 2; Pages: 399 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2022 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
ZnO, ZnFe 2 O 4, hollow nanostructure, electrospinning, H 2 S, gas sensor |
| الوصف: |
Herein, a facile fabrication process of ZnO-ZnFe2O4 hollow nanofibers through one-needle syringe electrospinning and the following calcination process is presented. The various compositions of the ZnO-ZnFe2O4 nanofibers are simply created by controlling the metal precursor ratios of Zn and Fe. Moreover, the different diffusion rates of the metal oxides and metal precursors generate a hollow nanostructure during calcination. The hollow structure of the ZnO-ZnFe2O4 enables an enlarged surface area and increased gas sensing sites. In addition, the interface of ZnO and ZnFe2O4 forms a p-n junction to improve gas response and to lower operation temperature. The optimized ZnO-ZnFe2O4 has shown good H2S gas sensing properties of 84.5 (S = Ra/Rg) at 10 ppm at 250 °C with excellent selectivity. This study shows the good potential of p-n junction ZnO-ZnFe2O4 on H2S detection and affords a promising sensor design for a high-performance gas sensor. |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
Smart Materials; https://dx.doi.org/10.3390/ma15020399 |
| DOI: |
10.3390/ma15020399 |
| الاتاحة: |
https://doi.org/10.3390/ma15020399 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.FD982E1E |
| قاعدة البيانات: |
BASE |