Electrochemical storage mechanism of sodium in carbon materials: a study from soft carbon to hard carbon

Carbon ◽  
2021 ◽  
Author(s):  
Dejian Cheng ◽  
Xiuqing Zhou ◽  
Huanying Hu ◽  
Zhenghui Li ◽  
Jun Chen ◽  
...  
2018 ◽  
Vol 3 (12) ◽  
pp. 2851-2857 ◽  
Author(s):  
M. Anji Reddy ◽  
M. Helen ◽  
Axel Groß ◽  
Maximilian Fichtner ◽  
Holger Euchner

2016 ◽  
Vol 40 (12) ◽  
pp. 9986-9992 ◽  
Author(s):  
Xin-Yi Zhao ◽  
Xue Bai ◽  
Wei Yang ◽  
Dong Shen ◽  
Huan Yang ◽  
...  

MnO nanoparticles coated with pitch-derived soft carbon exhibit greatly enhanced electrochemical performance compared to those coated with glucose-derived hard carbon.


2020 ◽  
Vol 7 (19) ◽  
pp. 4010-4015
Author(s):  
Yanchun Xue ◽  
Mingyue Gao ◽  
Mengrong Wu ◽  
Dongqin Su ◽  
Xingmei Guo ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (70) ◽  
pp. 44296-44302 ◽  
Author(s):  
Weiwei Jiang ◽  
Mengqiang Wu ◽  
Fei Liu ◽  
Jian Yang ◽  
Tingting Feng

Asphalt-derived and glucose-derived carbon proved to be soft carbon-coating (SCC) and hard carbon-coating (HCC), and it was found that LFP/SCC showed a superior performance in capacity and rate capability than that of LFP/HCC.


2021 ◽  
Author(s):  
Kemeng Ji ◽  
Kailong Hu ◽  
Yuhao Shen ◽  
Yoshikazu Ito ◽  
Cheng Liu ◽  
...  

Abstract Neither of the two widely used staging models in the long history of intercalation chemistry, namely the classical Rüdorff-Hofmann model proposed in 1938 and the pleated-layer domain-modified one in 1969, can explain the intercalation reaction phenomena and mechanism logically. Taking the landmark potassium-intercalation reaction of graphite as a model case and two advanced monolithic graphitic/graphenic carbon foams as model electrodes, here we have revealed that the electrochemical storage of potassium in graphitic/graphenic carbon (as that of lithium) obeys a simple interlayered centroid intercalation (ICIC) rule to achieve the staged potassium intercalation into each graphitic interlayer: C → KC72 → KC24 → KC8. Moreover, judging from the typical potassium-storage behaviors and crystal texture of graphitic electrodes, nitrogen doping and pre-embedded K atoms would enable incoming K+ ions to perform fast pseudocapacitive diffusion in graphitic gallery. This study not only makes clear the basic K-storage mechanism and phenomena in graphitic carbon, but also establishes a more reasonable ICIC model for intercalation chemistry, and thus may help open a new research era for this field as well as graphite-based metal-ion batteries.


2021 ◽  
Vol 10 (4) ◽  
pp. 08-12
Author(s):  
C. Thevamirtha ◽  
Sherin Monichan ◽  
P. Mosae Selvakumar

Plant-based carbon materials are a high-demand source nowadays, as they are low-cost, eco-friendly, easily available, and sustainable.  Borassus flabellifer (Palmyra palm) is a gift of nature that gives numerous benefits, as all parts of the tree can be used for multiple purposes. Palmyraculture is the practice of cultivating Palmyra palms and utilizing them to live a self-reliant life in working towards sustainable development. Due to the advancement of technology, Borassus flabellifer is used to synthesize carbon materials, including hard carbon, carbon nanodots, charcoal, and activated carbon.  These carbon materials can be used in electrochemistry as anode materials, biosensing, bioimaging, catalysts, and water purification. This review mainly focuses on the carbon materials derived from the Borassus flabellifer, their applications in various fields, and further aspects that have to be considered.


Sign in / Sign up

Export Citation Format

Share Document