Inward growth of superthin TiC skin on carbon nanotube framework as stable cathode support for Li-O-2 batteries
文献类型：期刊论文
| 作者 | Yang, CS; Sun, Z; Cui, ZH; Jianga, FL; Denga, JW; Zhang, T |
| 刊名 | ENERGY STORAGE MATERIALS
 |
| 出版日期 | 2020-09-01 |
| 页码 | 59 |
| ISSN号 | 2405-8297 |
| DOI | 10.1016/j.ensm.2020.04.018 |
| 文献子类 | Article |
| 英文摘要 | The rational design and synthetic route to fabricate stable air cathode supports, which combine high electron conductivity and desirable superoxide anion radical species (O2-)-against stability, remain critical but still challenging for sustainable Li-O-2 batteries. Herein, a method of inward vapor-solid growth is proposed to prepare superthin TiC skin on mull-walled carbon nanotubes framework (MWNTs) as stable support (TiC/MWNTs) for air cathodes. By adjusting reaction temperature and time, the sp2-hybrid carbon walls of MWNTs are transformed into dense TiC skins layer by layer from outside to inside. The thickness of the transformed TiC skin can be controlled at a superthin nanosized magnitude of 3 nm. Benefiting from the seamless TiC surface layer, the TiC/MWNTs possesses both the advantages of MWNTs framework (light mass and high electronic conductivity) and TiC skin (excellent O2--against stability). Besides, by loading the catalyst of Ru nanoparticles on the obtained TiC/MWNTs support, the Li-O-2 battery exhibits long-term cyclability (90 cycles) with little by-products (Li2CO3). The inward growth method is demonstrated to be also effective for graphene sheets and the conventional carbon blacks of Ketjenblack (KB). This achievement provides a new approach for surface enhancement of carbon electrodes from universal electrolyte corrosion problems. |
| WOS关键词 | LITHIUM-OXYGEN BATTERY ; ELECTRODE ; FILMS ; EFFICIENCY ; COMPOSITE ; SOLVENTS ; CATALYST ; ANODE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27797]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Yang, CS,Sun, Z,Cui, ZH,et al. Inward growth of superthin TiC skin on carbon nanotube framework as stable cathode support for Li-O-2 batteries[J]. ENERGY STORAGE MATERIALS,2020:59. |
| APA | Yang, CS,Sun, Z,Cui, ZH,Jianga, FL,Denga, JW,&Zhang, T.(2020).Inward growth of superthin TiC skin on carbon nanotube framework as stable cathode support for Li-O-2 batteries.ENERGY STORAGE MATERIALS,59. |
| MLA | Yang, CS,et al."Inward growth of superthin TiC skin on carbon nanotube framework as stable cathode support for Li-O-2 batteries".ENERGY STORAGE MATERIALS (2020):59. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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