{"title":"利用双电子反应构建导电的 PTh 促进 NaTi2(PO4)3 纳米复合材料，用于钠储能","authors":"Yanmei Zuo, Deqi Huang, Zhifang Zuo","doi":"10.1016/j.ssi.2024.116643","DOIUrl":null,"url":null,"abstract":"<div><p>As a new negative material for sodium-ion batteries, NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> has received great attention because of its excellent safety, abundant natural resources, low toxicity and two-electron reactions. However, the pure NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> anode material displays a bad conductivity, resulting in an inferior electrochemical performance for sodium energy storage. In this work, we introduce a good route to fabricate the conductive PTh-promoted NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@PTh) composite with superior rate property and superior cycle stability for the first time. In this fabricated material, the conductive PTh layer has been successfully coated on the NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> nanoparticles. Compared to NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>, the prepared NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@PTh anode possesses better cycle stability and higher capacity. It shows the capacity of 129.5 mAh g<sup>−1</sup> at 0.1C and presents the high capacity retention of around 98.3% at 10C over 300 cycles. Therefore, this fabricated NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@PTh nanocomposite can be employed as the novel negative electrode in sodium-ion storage.</p></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"414 ","pages":"Article 116643"},"PeriodicalIF":3.0000,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Construction of conductive PTh-promoted NaTi2(PO4)3 nanocomposite with two-electron reactions for sodium energy storage\",\"authors\":\"Yanmei Zuo, Deqi Huang, Zhifang Zuo\",\"doi\":\"10.1016/j.ssi.2024.116643\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>As a new negative material for sodium-ion batteries, NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> has received great attention because of its excellent safety, abundant natural resources, low toxicity and two-electron reactions. However, the pure NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> anode material displays a bad conductivity, resulting in an inferior electrochemical performance for sodium energy storage. In this work, we introduce a good route to fabricate the conductive PTh-promoted NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@PTh) composite with superior rate property and superior cycle stability for the first time. In this fabricated material, the conductive PTh layer has been successfully coated on the NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> nanoparticles. Compared to NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>, the prepared NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@PTh anode possesses better cycle stability and higher capacity. It shows the capacity of 129.5 mAh g<sup>−1</sup> at 0.1C and presents the high capacity retention of around 98.3% at 10C over 300 cycles. Therefore, this fabricated NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@PTh nanocomposite can be employed as the novel negative electrode in sodium-ion storage.</p></div>\",\"PeriodicalId\":431,\"journal\":{\"name\":\"Solid State Ionics\",\"volume\":\"414 \",\"pages\":\"Article 116643\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-07-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solid State Ionics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167273824001917\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Ionics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167273824001917","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Construction of conductive PTh-promoted NaTi2(PO4)3 nanocomposite with two-electron reactions for sodium energy storage
As a new negative material for sodium-ion batteries, NaTi2(PO4)3 has received great attention because of its excellent safety, abundant natural resources, low toxicity and two-electron reactions. However, the pure NaTi2(PO4)3 anode material displays a bad conductivity, resulting in an inferior electrochemical performance for sodium energy storage. In this work, we introduce a good route to fabricate the conductive PTh-promoted NaTi2(PO4)3 (NaTi2(PO4)3@PTh) composite with superior rate property and superior cycle stability for the first time. In this fabricated material, the conductive PTh layer has been successfully coated on the NaTi2(PO4)3 nanoparticles. Compared to NaTi2(PO4)3, the prepared NaTi2(PO4)3@PTh anode possesses better cycle stability and higher capacity. It shows the capacity of 129.5 mAh g−1 at 0.1C and presents the high capacity retention of around 98.3% at 10C over 300 cycles. Therefore, this fabricated NaTi2(PO4)3@PTh nanocomposite can be employed as the novel negative electrode in sodium-ion storage.
期刊介绍：
This interdisciplinary journal is devoted to the physics, chemistry and materials science of diffusion, mass transport, and reactivity of solids. The major part of each issue is devoted to articles on:
(i) physics and chemistry of defects in solids;
(ii) reactions in and on solids, e.g. intercalation, corrosion, oxidation, sintering;
(iii) ion transport measurements, mechanisms and theory;
(iv) solid state electrochemistry;
(v) ionically-electronically mixed conducting solids.
Related technological applications are also included, provided their characteristics are interpreted in terms of the basic solid state properties.
Review papers and relevant symposium proceedings are welcome.
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