Ultrastable Li-ion battery anodes by encapsulating SnS nanoparticles in sulfur-doped graphene bubble films

Nanoscale ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 3941-3949 ◽  
Author(s):  
Bing Zhao ◽  
Daiyun Song ◽  
Yanwei Ding ◽  
Juan Wu ◽  
Zhixuan Wang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Flake Graphite ◽  
Li Ion Battery ◽  
Doped Graphene ◽  
Li Ion

SnS nanoparticles are encapsulated into sulfur-doped graphene bubble film presenting a flake-graphite-like structure. The closely packed SnS@G composite shows much lower specific surface area, smaller irreversible Li+ consumption.

Fabrication of Mesoporous C60/Carbon Hybrids with 3D Porous Structure for Energy Storage Applications

2021 ◽  
Vol 21 (3) ◽  
pp. 1483-1492
Author(s):  
Arun V. Baskar ◽  
Jefrin M. Davidraj ◽  
Ajanya M. Ruban ◽  
Stalin Joseph ◽  
Gurwinder Singh ◽  
...  
Keyword(s):  
Specific Surface ◽  
Porous Structure ◽  
Surface Area ◽  
Specific Surface Area ◽  
Hybrid Materials ◽  
Current Density ◽  
Specific Capacity ◽  
3D Structure ◽  
Li Ion Battery ◽  
Li Ion

We report on the synthesis of 3D mesoporous fullerene/carbon hybrid materials with ordered porous structure and high surface area by mixing the solution of fullerene and sucrose molecules in the nanochannels of 3D mesoporous silica, KIT-6 via nanotemplating approach. The addition of sucrose molecules in the synthesis offers a thin layer of carbon between the fullerene molecules which enhances not only the specific surface area and the specific pore volume but also the conductivity of the hybrid materials. The prepared hybrids exhibit 3D mesoporous structure and show a much higher specific surface area than that of the pure mesoporous fullerene. The hybrids materials are used as the electrodes for supercapacitor and Li-ion battery applications. The optimised hybrid sample shows an excellent rate capability and a high specific capacitance of 254 F/g at the current density of 0.5 A/g, which is much higher than that of the pure mesoporous fullerene, mesoporous carbon, activated carbon and multiwalled carbon nanotubes. When used as the electrode for Li-ion battery, the sample delivers the largest specific capacity of 1067 mAh/g upon 50 cycles at the current density of 0.1 A/g with stability. These results reveal that the addition of carbon in the mesoporous fullerene with 3D structure makes a significant impact on the electrochemical properties of the hybrid samples, demonstrating their potential for applications in Li-ion battery and supercapacitor devices.

Hydrothermally Synthesized Li4Ti5O12 Nanotubes Anode Material with Enhanced Li-Ion Battery Performances

2019 ◽  
Vol 19 (11) ◽  
pp. 7387-7391 ◽  
Author(s):  
Xiao-Chong Zhao ◽  
Pan Yang ◽  
Tao Ding ◽  
Li-Jun Yang ◽  
Xianmin Mai ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Hollow Structure ◽  
High Specific Surface Area ◽  
High Rate ◽  
Li Ion Battery ◽  
Initial Discharge ◽  
Li Ion ◽  
Improved Performance

Hollow Li4Ti5O12 nanotubes were synthesized by stirring in a heated oil bath using P25 as titanium source and lithium hydroxide as lithium source. The as-prepared samples displayed a nanotube structure, with diameter of about 20~50 nm and length of 0.4 μm. The specific surface area of as-prepared samples reached 153.2 m2g−1. It is demonstrated that the Li4Ti5O12 nanotubes with improved performance can be obtained by hollow structure and high specific surface area. In consequence, it delivered a high reversible initial discharge capacity of 174.2 mAh g−1 at 0.5 C rate. A stable capacity of 170.9 mAh g−1 was delivered when the rate was reduced back to 0.5 C, suggesting good structural stability of the nanocable, high reversibility even after high rate charge– discharge, and good cycle stability. In addition, a capacity of 134.9 mAh g−1 and 98 mAhg−1 could be retained at a high rate of 5 C and 10 C, indicating excellent rate performances.

Coassembly and high ORR performance of monodisperse Pt nanocrystals with a mesopore-rich nitrogen-doped graphene aerogel

2017 ◽  
Vol 5 (33) ◽  
pp. 17544-17548 ◽  
Author(s):  
Beibei Xie ◽  
Yong Zhang ◽  
Renjie Zhang
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Large Specific Surface Area ◽  
Graphene Aerogel ◽  
N Content ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Pt Nanocrystals

Monodisperse Pt nanocrystals in NGA with a large specific surface area and high N content yield high ORR performance.

Impact of the Specific Surface Area on the Memory Effect in Li-Ion Batteries: The Case of Anatase TiO2

2014 ◽  
Vol 4 (17) ◽  
pp. 1400829 ◽  
Author(s):  
Edyta Madej ◽  
Fabio La Mantia ◽  
Wolfgang Schuhmann ◽  
Edgar Ventosa
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Memory Effect ◽  
Specific Surface Area ◽  
Anatase Tio2 ◽  
Li Ion Batteries ◽  
Li Ion

A Method for Synthesis of Nitrogen-Doped Graphene with High Specific Surface Area

2020 ◽  
Vol 495 (1) ◽  
pp. 159-165
Author(s):  
V. V. Chesnokov ◽  
A. S. Chichkan ◽  
D. A. Svintsitskiy ◽  
E. Yu. Gerasimov ◽  
V. N. Parmon
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Specific Surface Area ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

A powerful approach to fabricate nitrogen-doped graphene sheets with high specific surface area

2012 ◽  
Vol 14 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Shin-Yi Yang ◽  
Kuo-Hsin Chang ◽  
Yuan-Li Huang ◽  
Ying-Feng Lee ◽  
Hsi-Wen Tien ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Specific Surface Area ◽  
Graphene Sheets ◽  
Nitrogen Doped ◽  
Powerful Approach ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

scholarly journals Nitrogen-Doped Porous Carbon Derived From Bimetallic Zeolitic Imidazolate Frameworks For Electrochemical Li+/Na+ Storage

2021 ◽  
Author(s):  
Shuai Dong ◽  
Jiewu Cui ◽  
Dongbo Yu ◽  
Zhongnan Cao ◽  
Cuiping Yu ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Molar Ratio ◽  
Zeolitic Imidazolate Frameworks ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
N Doping ◽  
Li Ion

Abstract Porous carbon is regarded as one of the most promising anode candidates for Li-ion battery and Na-ion battery. We herein demonstrate a series of nitrogen-doped porous carbon (NPC) by simply carbonizing bimetallic ZnCo-containing zeolitic imidazolate frameworks (ZnCo-ZIFs). The nitrogen content, specific surface area, pore size distribution and microstructure of prepared NPC are balanced by adjusting Zn2+/Co2+ molar ratio of ZnCo-ZIFs and carbonization process parameters. It is found that the optimized ZnCo-ZIF-derived NPC shows promise for electrochemical Li+/Na+ storage, which could be attributed to the hierarchical porous structure, large specific surface area and relatively high N-doping content.

A novel NiCo2O4 anode morphology for lithium-ion batteries

2015 ◽  
Vol 3 (22) ◽  
pp. 11970-11975 ◽  
Author(s):  
Tao Li ◽  
Xinhai Li ◽  
Zhixing Wang ◽  
Huajun Guo ◽  
Yan Li
Keyword(s):  
Electrochemical Performance ◽  
Specific Surface ◽  
Lithium Ion Batteries ◽  
Surface Area ◽  
Specific Surface Area ◽  
Anode Materials ◽  
Lithium Ion ◽  
High Specific Surface Area ◽  
Li Ion Batteries ◽  
Li Ion

Wrinkled NiCo2O4 particles with a high specific surface area showed superior electrochemical performance as anode materials for Li-ion batteries.

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