Zheng-Yong Yuan, Yao Xiao, Xiao-Qing Yang, Chuan-Qi Feng
{"title":"Zn₃V₃O8的合成、掺杂及电化学性能","authors":"Zheng-Yong Yuan, Yao Xiao, Xiao-Qing Yang, Chuan-Qi Feng","doi":"10.1166/jnn.2021.19532","DOIUrl":null,"url":null,"abstract":"<p><p>The Zn₃V₃O<sub>8</sub> was synthesized by solvothermal method combined with heat treatment using Zn(NO₃)₃ · 6H₂O and NH₄VO₃ as raw materials. The Zn₃V₃O<sub>8</sub> was doped by Co<sup>2+</sup> to form Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub>. The samples were characterized by X-ray diffraction and scanning electron microscopy techniques. Electrochemical tests showed that the initial discharge specific capacity for Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub> was 640.4 mAh·g<sup>-1</sup> when the current density was 100 mA·g<sup>-1</sup>, which was higher than that of pure Zn₃V₃O<sub>8</sub> (563.5 mAh · g<sup>-1</sup>). After 80 cycles, the discharge specific capacity of Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub> could maintain at 652.2 mAh · g<sup>-1</sup>, which was higher than that of pure Zn₃V₃O<sub>8</sub> (566.8 mAh·g<sup>-1</sup>) under same condition. The Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub> owned better rate performances than those of pure Zn₃V₃O<sub>8</sub> also. The related modification mechanisms were discussed in this paper.</p>","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"6120-6125"},"PeriodicalIF":0.0000,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis, Doping and Electrochemical Properties of Zn₃V₃O<sub>8</sub>.\",\"authors\":\"Zheng-Yong Yuan, Yao Xiao, Xiao-Qing Yang, Chuan-Qi Feng\",\"doi\":\"10.1166/jnn.2021.19532\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The Zn₃V₃O<sub>8</sub> was synthesized by solvothermal method combined with heat treatment using Zn(NO₃)₃ · 6H₂O and NH₄VO₃ as raw materials. The Zn₃V₃O<sub>8</sub> was doped by Co<sup>2+</sup> to form Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub>. The samples were characterized by X-ray diffraction and scanning electron microscopy techniques. Electrochemical tests showed that the initial discharge specific capacity for Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub> was 640.4 mAh·g<sup>-1</sup> when the current density was 100 mA·g<sup>-1</sup>, which was higher than that of pure Zn₃V₃O<sub>8</sub> (563.5 mAh · g<sup>-1</sup>). After 80 cycles, the discharge specific capacity of Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub> could maintain at 652.2 mAh · g<sup>-1</sup>, which was higher than that of pure Zn₃V₃O<sub>8</sub> (566.8 mAh·g<sup>-1</sup>) under same condition. The Zn<sub>2.88</sub>Co<sub>0.12</sub>V₃O<sub>8</sub> owned better rate performances than those of pure Zn₃V₃O<sub>8</sub> also. The related modification mechanisms were discussed in this paper.</p>\",\"PeriodicalId\":16417,\"journal\":{\"name\":\"Journal of nanoscience and nanotechnology\",\"volume\":\"21 12\",\"pages\":\"6120-6125\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of nanoscience and nanotechnology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1166/jnn.2021.19532\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of nanoscience and nanotechnology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1166/jnn.2021.19532","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Synthesis, Doping and Electrochemical Properties of Zn₃V₃O8.
The Zn₃V₃O8 was synthesized by solvothermal method combined with heat treatment using Zn(NO₃)₃ · 6H₂O and NH₄VO₃ as raw materials. The Zn₃V₃O8 was doped by Co2+ to form Zn2.88Co0.12V₃O8. The samples were characterized by X-ray diffraction and scanning electron microscopy techniques. Electrochemical tests showed that the initial discharge specific capacity for Zn2.88Co0.12V₃O8 was 640.4 mAh·g-1 when the current density was 100 mA·g-1, which was higher than that of pure Zn₃V₃O8 (563.5 mAh · g-1). After 80 cycles, the discharge specific capacity of Zn2.88Co0.12V₃O8 could maintain at 652.2 mAh · g-1, which was higher than that of pure Zn₃V₃O8 (566.8 mAh·g-1) under same condition. The Zn2.88Co0.12V₃O8 owned better rate performances than those of pure Zn₃V₃O8 also. The related modification mechanisms were discussed in this paper.
期刊介绍:
JNN is a multidisciplinary peer-reviewed journal covering fundamental and applied research in all disciplines of science, engineering and medicine. JNN publishes all aspects of nanoscale science and technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, theory and computation, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology.