Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing properties
The porous Co<sub>3</sub>O<sub>4</sub> hollow nanospheres were synthesized <i>via</i> hard template method by a carbon spheres templated strategy. The morphology and structure of materials were studied by SEM, XRD, FTIR, BET and XPS. The structure and gas sensing...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2019-01-01
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| Series: | Cailiao gongcheng |
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| Online Access: | http://jme.biam.ac.cn/CN/Y2019/V47/I1/50 |
| _version_ | 1828077138761220096 |
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| author | KAN Kan WANG Jue FU Dong Sementsov YURII SONG Mei-hui LIN Yu-fei SHI Ke-ying |
| author_facet | KAN Kan WANG Jue FU Dong Sementsov YURII SONG Mei-hui LIN Yu-fei SHI Ke-ying |
| author_sort | KAN Kan |
| collection | DOAJ |
| description | The porous Co<sub>3</sub>O<sub>4</sub> hollow nanospheres were synthesized <i>via</i> hard template method by a carbon spheres templated strategy. The morphology and structure of materials were studied by SEM, XRD, FTIR, BET and XPS. The structure and gas sensing properties of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres were controlled by changing the concentration of precursor and aging time. The results show that the Co<sub>3</sub>O<sub>4</sub> hollow nanospheres with diameter of 500nm composed by 40nm Co<sub>3</sub>O<sub>4</sub> nanoparticles can be synthesized with 0.1mol/L precursor and aging for 48h. The surface of nanospheres is porous structure. The synthesized Co<sub>3</sub>O<sub>4</sub> hollow nanospheres sensor have good gas response to 100×10<sup>-6</sup>-0.5×10<sup>-6</sup> NH<sub>3</sub> at room temperature. The gas sensitivity to 100×10<sup>-6</sup> NH<sub>3</sub> reaches 155.8% and the response time is 1.3s. The limit level of this gas sensor to NH<sub>3</sub> is 0.5×10<sup>-6</sup>. |
| first_indexed | 2024-04-11T02:24:59Z |
| format | Article |
| id | doaj.art-a003775008924e1ba6cb843edfe234d3 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:24:59Z |
| publishDate | 2019-01-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-a003775008924e1ba6cb843edfe234d32023-01-02T22:55:36ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812019-01-01471505710.11868/j.issn.1001-4381.2017.000114201901000114Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing propertiesKAN Kan0WANG Jue1FU Dong2Sementsov YURII3SONG Mei-hui4LIN Yu-fei5SHI Ke-ying6Institute of Advanced Technology, Heilongjiang Academy of Sciences, Harbin 150020, ChinaInstitute of Advanced Technology, Heilongjiang Academy of Sciences, Harbin 150020, ChinaInstitute of Advanced Technology, Heilongjiang Academy of Sciences, Harbin 150020, ChinaChuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Kyiv 03164, UkraineInstitute of Advanced Technology, Heilongjiang Academy of Sciences, Harbin 150020, ChinaSchool of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, ChinaSchool of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, ChinaThe porous Co<sub>3</sub>O<sub>4</sub> hollow nanospheres were synthesized <i>via</i> hard template method by a carbon spheres templated strategy. The morphology and structure of materials were studied by SEM, XRD, FTIR, BET and XPS. The structure and gas sensing properties of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres were controlled by changing the concentration of precursor and aging time. The results show that the Co<sub>3</sub>O<sub>4</sub> hollow nanospheres with diameter of 500nm composed by 40nm Co<sub>3</sub>O<sub>4</sub> nanoparticles can be synthesized with 0.1mol/L precursor and aging for 48h. The surface of nanospheres is porous structure. The synthesized Co<sub>3</sub>O<sub>4</sub> hollow nanospheres sensor have good gas response to 100×10<sup>-6</sup>-0.5×10<sup>-6</sup> NH<sub>3</sub> at room temperature. The gas sensitivity to 100×10<sup>-6</sup> NH<sub>3</sub> reaches 155.8% and the response time is 1.3s. The limit level of this gas sensor to NH<sub>3</sub> is 0.5×10<sup>-6</sup>.http://jme.biam.ac.cn/CN/Y2019/V47/I1/50Co<sub>3</sub>O<sub>4</sub>nanosphereNH<sub>3</sub>gas sensor |
| spellingShingle | KAN Kan WANG Jue FU Dong Sementsov YURII SONG Mei-hui LIN Yu-fei SHI Ke-ying Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing properties Cailiao gongcheng Co<sub>3</sub>O<sub>4</sub> nanosphere NH<sub>3</sub> gas sensor |
| title | Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing properties |
| title_full | Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing properties |
| title_fullStr | Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing properties |
| title_full_unstemmed | Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing properties |
| title_short | Preparation of Co<sub>3</sub>O<sub>4</sub> hollow nanospheres and gas sensing properties |
| title_sort | preparation of co sub 3 sub o sub 4 sub hollow nanospheres and gas sensing properties |
| topic | Co<sub>3</sub>O<sub>4</sub> nanosphere NH<sub>3</sub> gas sensor |
| url | http://jme.biam.ac.cn/CN/Y2019/V47/I1/50 |
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