Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection
Q1
Lưu vào:
| Tác giả chính: | |
|---|---|
| Đồng tác giả: | |
| Định dạng: | Bài Báo |
| Ngôn ngữ: | English |
| Nhà xuất bản: |
Sensors and Actuators B: Chemical
2021
|
| Chủ đề: | |
| Truy cập trực tuyến: | https://www.sciencedirect.com/science/article/abs/pii/S092540052100174X?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/1927 |
| Từ khóa: |
Thêm từ khóa
Không có từ khóa, Hãy là người đầu tiên đánh dấu biểu ghi này!
|
| id |
oai:localhost:PNK-1927 |
|---|---|
| record_format |
dspace |
| spelling |
oai:localhost:PNK-19272022-08-17T05:54:44Z Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection Phan, Hong Phuoc Nguyen, Ngoc Viet Le, Viet Thong Chu, Manh Hung Nguyen, Duc Hoa Nguyen, Van Duy Hoang, Si Hong Nguyen, Van Hieu ZnO/SnO2 Composite nanofibers Mixed nanofibers Nano-junction Q1 The design of hetero-nanojunctions can greatly amplify the gas-sensing performance of conventional metal oxide gas sensors. In this study, the composite nanofibers (NFs) of ZnO–SnO2 internal heterojunctions (HJs) and the mixed NFs of ZnO/SnO2 external HJs were realized by using the electrospinning technique. Then, the gas-sensing characteristics of the as-synthesized NFs toward H2S and NO2 gases were systematically investigated and compared. The effects of the internal and external nanojunctions of the hetero-NF-based gas sensors were also explored. Results showed that the ZnO–SnO2 composite NFs demonstrate a higher response than those of the ZnO/SnO2 mixed NFs, as well as bare ZnO and SnO2 NFs. Also, the cross responses of the hetero-NF sensors toward 200 ppm CO, 250 ppm H2, and 250 ppm NH3 were examined. The gas-sensing mechanism of the internal and external HJs of composite ZnO/SnO2 and mixed ZnO/SnO2 NFs was analyzed. The remarkable enhanced gas-sensing performance of hetero-NFs was mainly attributed to the formation of internal HJs. 2021-07-05T05:06:03Z 2021-07-05T05:06:03Z 2021 Article https://www.sciencedirect.com/science/article/abs/pii/S092540052100174X?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/1927 10.1016/j.snb.2021.129606 en application/pdf Sensors and Actuators B: Chemical |
| institution |
Digital Phenikaa |
| collection |
Digital Phenikaa |
| language |
English |
| topic |
ZnO/SnO2 Composite nanofibers Mixed nanofibers Nano-junction |
| spellingShingle |
ZnO/SnO2 Composite nanofibers Mixed nanofibers Nano-junction Phan, Hong Phuoc Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection |
| description |
Q1 |
| author2 |
Nguyen, Ngoc Viet |
| author_facet |
Nguyen, Ngoc Viet Phan, Hong Phuoc |
| format |
Article |
| author |
Phan, Hong Phuoc |
| author_sort |
Phan, Hong Phuoc |
| title |
Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection |
| title_short |
Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection |
| title_full |
Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection |
| title_fullStr |
Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection |
| title_full_unstemmed |
Comparative study on the gas-sensing performance of ZnO/SnO2 external and ZnO–SnO2 internal heterojunctions for ppb H2S and NO2 gases detection |
| title_sort |
comparative study on the gas-sensing performance of zno/sno2 external and zno–sno2 internal heterojunctions for ppb h2s and no2 gases detection |
| publisher |
Sensors and Actuators B: Chemical |
| publishDate |
2021 |
| url |
https://www.sciencedirect.com/science/article/abs/pii/S092540052100174X?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/1927 |
| _version_ |
1751856297366519808 |
| score |
8.887929 |