Thông tin tài liệu


Nhan đề : 
Anion Defects Engineering of Ternary Nb-Based Chalcogenide Anodes Toward High-Performance Sodium-Based Dual-Ion Batteries
Tác giả : 
Yangjie, Liu
Min, Qiu
Xiang, Hu
Năm xuất bản : 
2023
Nhà xuất bản : 
Springer
Tóm tắt : 
Sodium-based dual-ion batteries (SDIBs) have gained tremendous attention due to their virtues of high operating voltage and low cost, yet it remains a tough challenge for the development of ideal anode material of SDIBs featuring with high kinetics and long durability. Herein, we report the design and fabrication of N-doped carbon film-modified niobium sulfur–selenium (NbSSe/NC) nanosheets architecture, which holds favorable merits for Na+ storage of enlarged interlayer space, improved electrical conductivity, as well as enhanced reaction reversibility, endowing it with high capacity, high-rate capability and high cycling stability. The combined electrochemical studies with density functional theory calculation reveal that the enriched defects in such nanosheets architecture can benefit for facilitating charge transfer and Na+ adsorption to speed the electrochemical kinetics. The NbSSe/NC composites are studied as the anode of a full SDIBs by pairing the expanded graphite as cathode, which shows an impressively cyclic durability with negligible capacity attenuation over 1000 cycles at 0.5 A g−1, as well as an outstanding energy density of 230.6 Wh kg−1 based on the total mass of anode and cathode.
Mô tả: 
CC BY
URI: 
https://link.springer.com/article/10.1007/s40820-023-01070-0
https://dlib.phenikaa-uni.edu.vn/handle/PNK/8036
Bộ sưu tập
OER - Kỹ thuật điện; Điện tử - Viễn thông
XEM MÔ TẢ

31

XEM TOÀN VĂN

10

Danh sách tệp tin đính kèm: