Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection
Porous sea urchin-like nickel-doped ZnO with various nickel contents and high specific surface area were synthesized using a solution method followed by calcination. The nickel-doped ZnO products consisted of numerous porous nanoleaves. The Ni content in these products ranged from 5% to 20%. The Ni...
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| Format: | Article |
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MDPI AG
2023-04-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/11/4/223 |
| _version_ | 1797605908327432192 |
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| author | Haibo Ren Huaipeng Weng Xumeng Dong Jiarui Huang Sang Woo Joo |
| author_facet | Haibo Ren Huaipeng Weng Xumeng Dong Jiarui Huang Sang Woo Joo |
| author_sort | Haibo Ren |
| collection | DOAJ |
| description | Porous sea urchin-like nickel-doped ZnO with various nickel contents and high specific surface area were synthesized using a solution method followed by calcination. The nickel-doped ZnO products consisted of numerous porous nanoleaves. The Ni content in these products ranged from 5% to 20%. The Ni dopants in the ZnO lattice were verified by X-ray diffraction and X-ray photoelectron spectroscopy. The sensors based on nickel-doped ZnO sea urchins showed superior sensing performance for some volatile organic compounds (VOCs). ZnO sea urchins with 10% nickel doping exhibited the best gas-sensing performance, including a low working temperature, short response/recovery time, and high sensor response. In particular, the 10% Ni-doped ZnO sea urchin sensor exhibited a response of 84.4 with response/recovery times of 17/20 s towards 100 ppm formaldehyde vapor. These superior sensing behaviors were attributed mainly to a suitable Ni content with high content of oxygen defects, small nanocrystals, and a porous hierarchical structure with a high specific surface area. |
| first_indexed | 2024-03-11T05:07:45Z |
| format | Article |
| id | doaj.art-1e30ec96136143be994c3b9e741b38dd |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-11T05:07:45Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-1e30ec96136143be994c3b9e741b38dd2023-11-17T18:44:37ZengMDPI AGChemosensors2227-90402023-04-0111422310.3390/chemosensors11040223Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound DetectionHaibo Ren0Huaipeng Weng1Xumeng Dong2Jiarui Huang3Sang Woo Joo4School of Materials Science and Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Materials Science and Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Materials Science and Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaKey Laboratory of Functional Molecular Solids of the Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, ChinaSchool of Mechanical Engineering, Yeungnam University, Gyeongsan 712749, Gyeoungbuk, Republic of KoreaPorous sea urchin-like nickel-doped ZnO with various nickel contents and high specific surface area were synthesized using a solution method followed by calcination. The nickel-doped ZnO products consisted of numerous porous nanoleaves. The Ni content in these products ranged from 5% to 20%. The Ni dopants in the ZnO lattice were verified by X-ray diffraction and X-ray photoelectron spectroscopy. The sensors based on nickel-doped ZnO sea urchins showed superior sensing performance for some volatile organic compounds (VOCs). ZnO sea urchins with 10% nickel doping exhibited the best gas-sensing performance, including a low working temperature, short response/recovery time, and high sensor response. In particular, the 10% Ni-doped ZnO sea urchin sensor exhibited a response of 84.4 with response/recovery times of 17/20 s towards 100 ppm formaldehyde vapor. These superior sensing behaviors were attributed mainly to a suitable Ni content with high content of oxygen defects, small nanocrystals, and a porous hierarchical structure with a high specific surface area.https://www.mdpi.com/2227-9040/11/4/223zinc oxidenickel dopingzinc hydroxide carbonatenanoleafgas sensorvolatile organic compounds |
| spellingShingle | Haibo Ren Huaipeng Weng Xumeng Dong Jiarui Huang Sang Woo Joo Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection Chemosensors zinc oxide nickel doping zinc hydroxide carbonate nanoleaf gas sensor volatile organic compounds |
| title | Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection |
| title_full | Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection |
| title_fullStr | Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection |
| title_full_unstemmed | Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection |
| title_short | Nickel-Doped ZnO Porous Sea Urchin Nanostructures with Various Amounts of Oxygen Defects for Volatile Organic Compound Detection |
| title_sort | nickel doped zno porous sea urchin nanostructures with various amounts of oxygen defects for volatile organic compound detection |
| topic | zinc oxide nickel doping zinc hydroxide carbonate nanoleaf gas sensor volatile organic compounds |
| url | https://www.mdpi.com/2227-9040/11/4/223 |
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