Operando mechanistic and dynamic studies of N/P co-doped hard carbon nanofibers for efficient sodium storage

2021 ◽  
Author(s):  
Liaoliao Wang ◽  
Juan Wang ◽  
Dickon H. L. Ng ◽  
Sheng Li ◽  
Bobo Zou ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Hard Carbon ◽  
In Situ Raman ◽  
Dynamic Studies ◽  
Sodium Storage ◽  
Co Doped ◽  
Defective Sites

In-situ Raman and electrochemical results reveal that Na+ adsorb on the surface/defective sites of the N/P-HCNF and insert randomly into its turbostratic nanodomains in a dilute state without the staging...

Sulfur and phosphorus co-doped hard carbon derived from oak seeds enabled reversible sodium spheres filling and plating for ultra-stable sodium storage

2021 ◽  
Vol 851 ◽  
pp. 156791
Author(s):  
Juan Ding ◽  
Yue Zhang ◽  
Yudai Huang ◽  
Xingchao Wang ◽  
Ying Sun ◽  
...  
Keyword(s):  
Hard Carbon ◽  
Sodium Storage ◽  
Co Doped

scholarly journals Co9S8 activated N/S co-doped carbon tubes in situ grown on carbon nanofibers for efficient oxygen reduction

RSC Advances ◽  
2017 ◽  
Vol 7 (55) ◽  
pp. 34763-34769 ◽  
Author(s):  
Fang Wang ◽  
Ting Liu ◽  
Yaofang Guo ◽  
Wenzhen Li ◽  
Ji Qi ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Oxygen Reduction ◽  
Carbon Nanofibers ◽  
Carbon Nanofiber ◽  
Environment Friendly ◽  
Co Doped

Herein, we report a facile and environment-friendly route for the preparation of Co9S8 activated N/S co-doped carbon tubes (denoted as Co9S8@N/S–CT) in situ grown on a carbon nanofiber network derived from bacterial cellulose.

Sodium storage in hard carbon with curved graphene platelets as the basic structural units

2019 ◽  
Vol 7 (7) ◽  
pp. 3327-3335 ◽  
Author(s):  
Ke Wang ◽  
Yaobin Xu ◽  
Yuan Li ◽  
Vinayak Dravid ◽  
Jinsong Wu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Hard Carbon ◽  
Structural Units ◽  
Transmission Electron ◽  
Graphene Platelets ◽  
Sodium Storage

The mechanism of sodium storage in hard carbon has been revealed by in situ transmission electron microscopy.

Regulating the Interlayer Spacings of Hard Carbon Nanofibers Enables Enhanced Pore Filling Sodium Storage

Small ◽  
2021 ◽  
pp. 2105303
Author(s):  
Congcong Cai ◽  
Yongan Chen ◽  
Ping Hu ◽  
Ting Zhu ◽  
Xinyuan Li ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Hard Carbon ◽  
Pore Filling ◽  
Sodium Storage

“In-Situ Raman Spectroscopy of Electronic Processes in Fullerene Thin Films

2002 ◽  
Vol 725 ◽  
Author(s):  
S.B. Phelan ◽  
B.S. O'Connell ◽  
G. Farrell ◽  
G. Chambers ◽  
H.J. Byrne
Keyword(s):  
Thin Film ◽  
Indium Tin Oxide ◽  
Low Temperatures ◽  
In Situ Raman Spectroscopy ◽  
State Reduction ◽  
In Situ Raman ◽  
Linear Behavior ◽  
Current Voltage ◽  
Solid State Reduction

AbstractThe current voltage characteristics of C60 thin film sandwich structures fabricated by vacuum deposition on indium tin oxide (ITO) with an aluminium top electrode are presented and discussed. A strongly non-linear behavior and a sharp increase in the device conductivity was observed at relatively low voltages (∼2V), at both room and low temperatures (20K). At room temperature the system is seen to collapse, and in situ Raman measurements indicate a solid state reduction of the fullerene thin film to form a polymeric state. The high conductivity state was seen to be stable at elevated voltages and low temperatures. This state is seen to be reversible with the application of high voltages. At these high voltages the C60 film was seen to sporadically emit white light at randomly localized points analogous to the much documented Electroluminescence in single crystals.

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