Metal telluride nanosheets by scalable solid lithiation and exfoliation

• 成果类型: Article
• 署名作者: Zhang, Liangzhu; Yang, Zixuan; Feng, Shun; Guo, Zhuobin; Jia, Qingchao; Zeng, Huidan; Ding, Yajun; Das, Pratteek; Bi, Zhihong; Ma, Jiaxin; Fu, Yunqi; Wang, Sen; Mi, Jinxing; Zheng, Shuanghao; Li, Mingrun; Sun, Dong-Ming; Kang, Ning; Wu, Zhong-Shuai; Cheng, Hui-Ming
• 署名单位: Chinese Academy of Sciences; Dalian Institute of Chemical Physics, CAS; East China University of Science & Technology; East China University of Science & Technology; Peking University; Peking University; Chinese Academy of Sciences; Institute of Metal Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Chinese Academy of Sciences; Shenzhen Institute of Advanced Technology, CAS; Shenzhen University of Advanced Technology
• 刊物名称: Nature
• ISSN/ISSBN: 0028-3950
• DOI: 10.1038/s41586-024-07209-2
• 发表日期: 2024-04-11
• 关键词: phase

摘要

Transition metal tellurides (TMTs) have been ideal materials for exploring exotic properties in condensed-matter physics, chemistry and materials science(1,2,3). Although TMT nanosheets have been produced by top-down exfoliation, their scale is below the gram level and requires a long processing time, restricting their effective application from laboratory to market(4,5,6,7,8). We report the fast and scalable synthesis of a wide variety of MTe2 (M = Nb, Mo, W, Ta, Ti) nanosheets by the solid lithiation of bulk MTe2 within 10 min and their subsequent hydrolysis within seconds. Using NbTe2 as a representative, we produced more than a hundred grams (108 g) of NbTe2 nanosheets with 3.2 nm mean thickness, 6.2 mu m mean lateral size and a high yield (>80%). Several interesting quantum phenomena, such as quantum oscillations and giant magnetoresistance, were observed that are generally restricted to highly crystalline MTe2 nanosheets. The TMT nanosheets also perform well as electrocatalysts for lithium-oxygen batteries and electrodes for microsupercapacitors (MSCs). Moreover, this synthesis method is efficient for preparing alloyed telluride, selenide and sulfide nanosheets. Our work opens new opportunities for the universal and scalable synthesis of TMT nanosheets for exploring new quantum phenomena, potential applications and commercialization.