TY - JOUR
T1 - Solvent-Free Synthesis of Hollow Carbon Nanostructures for Efficient Sodium Storage
AU - Feng, Shihao
AU - Li, Kun
AU - Hu, Ping
AU - Cai, Congcong
AU - Liu, Jinfeng
AU - Li, Xinyuan
AU - Zhou, Liang
AU - Mai, Liqiang
AU - Su, Bao Lian
AU - Liu, Yong
N1 - Publisher Copyright:
© 2023 American Chemical Society
PY - 2023/11/28
Y1 - 2023/11/28
N2 - The structural characteristics of hollow carbon nanostructures (HCNs) result in intriguing physicochemical properties and various applications, especially for electrochemical energy storage applications. However, the currently solvent-based template methods to prepare HCNs are still far from meeting the facile, environment-friendly, and scalable demand. Herein, we explored a general and facile solvent-free block copolymer self-assembly approach to prepare various hollow hard carbon nanostructures, including hollow carbon nanofibers, hollow carbon Janus nanotadpoles, hollow carbon spheres, etc. It was found that the obtained HCNs possess abundant active sites, fast pathways for electrons/ions transport, and superior electronic conducting connectivity, which are promising for efficient electrochemical energy storage. Typically, the resultant hollow carbon nanofibers with a thick-walled tube deliver a high reversible capacity (431 mAh g-1) and excellent rate performance (259 mAh g-1 at 800 mA g-1) for sodium ion storage. This intelligent solvent-free block copolymer self-assembly method would inspire the design of hollow hard carbon-based nanostructures for advanced applications in various energy conversion and storage.
AB - The structural characteristics of hollow carbon nanostructures (HCNs) result in intriguing physicochemical properties and various applications, especially for electrochemical energy storage applications. However, the currently solvent-based template methods to prepare HCNs are still far from meeting the facile, environment-friendly, and scalable demand. Herein, we explored a general and facile solvent-free block copolymer self-assembly approach to prepare various hollow hard carbon nanostructures, including hollow carbon nanofibers, hollow carbon Janus nanotadpoles, hollow carbon spheres, etc. It was found that the obtained HCNs possess abundant active sites, fast pathways for electrons/ions transport, and superior electronic conducting connectivity, which are promising for efficient electrochemical energy storage. Typically, the resultant hollow carbon nanofibers with a thick-walled tube deliver a high reversible capacity (431 mAh g-1) and excellent rate performance (259 mAh g-1 at 800 mA g-1) for sodium ion storage. This intelligent solvent-free block copolymer self-assembly method would inspire the design of hollow hard carbon-based nanostructures for advanced applications in various energy conversion and storage.
KW - block polymer
KW - hollow carbon nanostructures
KW - self-assembly
KW - sodium ion battery
KW - solvent-free method
UR - http://www.scopus.com/inward/record.url?scp=85178116088&partnerID=8YFLogxK
U2 - 10.1021/acsnano.3c09328
DO - 10.1021/acsnano.3c09328
M3 - Article
C2 - 37955561
AN - SCOPUS:85178116088
SN - 1936-0851
VL - 17
SP - 23152
EP - 23159
JO - ACS nano
JF - ACS nano
IS - 22
ER -