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Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor
Herein, a facile fabrication process of ZnO-ZnFe(2)O(4) hollow nanofibers through one-needle syringe electrospinning and the following calcination process is presented. The various compositions of the ZnO-ZnFe(2)O(4) nanofibers are simply created by controlling the metal precursor ratios of Zn and F...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8782020/ https://www.ncbi.nlm.nih.gov/pubmed/35057117 http://dx.doi.org/10.3390/ma15020399 |
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author | Park, Kee-Ryung Kim, Ryun Na Song, Yoseb Kwon, Jinhyeong Choi, Hyeunseok |
author_facet | Park, Kee-Ryung Kim, Ryun Na Song, Yoseb Kwon, Jinhyeong Choi, Hyeunseok |
author_sort | Park, Kee-Ryung |
collection | PubMed |
description | Herein, a facile fabrication process of ZnO-ZnFe(2)O(4) hollow nanofibers through one-needle syringe electrospinning and the following calcination process is presented. The various compositions of the ZnO-ZnFe(2)O(4) 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-ZnFe(2)O(4) enables an enlarged surface area and increased gas sensing sites. In addition, the interface of ZnO and ZnFe(2)O(4) forms a p-n junction to improve gas response and to lower operation temperature. The optimized ZnO-ZnFe(2)O(4) has shown good H(2)S gas sensing properties of 84.5 (S = R(a)/R(g)) at 10 ppm at 250 °C with excellent selectivity. This study shows the good potential of p-n junction ZnO-ZnFe(2)O(4) on H(2)S detection and affords a promising sensor design for a high-performance gas sensor. |
format | Online Article Text |
id | pubmed-8782020 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87820202022-01-22 Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor Park, Kee-Ryung Kim, Ryun Na Song, Yoseb Kwon, Jinhyeong Choi, Hyeunseok Materials (Basel) Article Herein, a facile fabrication process of ZnO-ZnFe(2)O(4) hollow nanofibers through one-needle syringe electrospinning and the following calcination process is presented. The various compositions of the ZnO-ZnFe(2)O(4) 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-ZnFe(2)O(4) enables an enlarged surface area and increased gas sensing sites. In addition, the interface of ZnO and ZnFe(2)O(4) forms a p-n junction to improve gas response and to lower operation temperature. The optimized ZnO-ZnFe(2)O(4) has shown good H(2)S gas sensing properties of 84.5 (S = R(a)/R(g)) at 10 ppm at 250 °C with excellent selectivity. This study shows the good potential of p-n junction ZnO-ZnFe(2)O(4) on H(2)S detection and affords a promising sensor design for a high-performance gas sensor. MDPI 2022-01-06 /pmc/articles/PMC8782020/ /pubmed/35057117 http://dx.doi.org/10.3390/ma15020399 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Park, Kee-Ryung Kim, Ryun Na Song, Yoseb Kwon, Jinhyeong Choi, Hyeunseok Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor |
title | Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor |
title_full | Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor |
title_fullStr | Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor |
title_full_unstemmed | Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor |
title_short | Facile Fabrication of ZnO-ZnFe(2)O(4) Hollow Nanostructure by a One-Needle Syringe Electrospinning Method for a High-Selective H(2)S Gas Sensor |
title_sort | facile fabrication of zno-znfe(2)o(4) hollow nanostructure by a one-needle syringe electrospinning method for a high-selective h(2)s gas sensor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8782020/ https://www.ncbi.nlm.nih.gov/pubmed/35057117 http://dx.doi.org/10.3390/ma15020399 |
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