High capacity gas storage in corrugated porous graphene with a specific surface area-lossless tightly stacking manner

2012 ◽  
Vol 48 (54) ◽  
pp. 6815 ◽  
Author(s):  
Guoqing Ning ◽  
Chenggen Xu ◽  
Liang Mu ◽  
Guangjin Chen ◽  
Gang Wang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Capacity ◽  
Gas Storage ◽  
Porous Graphene

Enteromorpha based porous carbons activated by zinc chloride for supercapacitors with high capacity retention

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16575-16581 ◽  
Author(s):  
Mingbo Wu ◽  
Peng Li ◽  
Yang Li ◽  
Jun Liu ◽  
Yang Wang
Keyword(s):  
Specific Surface ◽  
Specific Capacitance ◽  
Surface Area ◽  
Specific Surface Area ◽  
Zinc Chloride ◽  
Porous Carbon ◽  
High Capacity ◽  
Porous Carbons ◽  
Capacity Retention

Porous carbons were prepared from enteromorpha with ZnCl2 as active reagent. The prepared porous carbon with a specific surface area of 1651 m2 g−1 exhibited a specific capacitance of 206 F g−1 and capacity retention of 93% even after 5000 cycles.

scholarly journals Ag-Modified LiMn2O4 Cathode for Lithium-Ion Batteries: Coating Functionalization

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5194 ◽  
Author(s):  
Somia M. Abbas ◽  
Ahmed M. Hashem ◽  
Ashraf E. Abdel-Ghany ◽  
Eman H. Ismail ◽  
Mário Kotlár ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Capacity ◽  
Lithium Ion ◽  
Capacity Retention ◽  
Limn2o4 Cathode ◽  
Calcination Atmosphere ◽  
Insulating Phase

In this work, the properties of silver-modified LiMn2O4 cathode materials are revisited. We study the influence of calcination atmosphere on the properties of the Ag-coated LiMn2O4 (Ag/LMO) and highlight the silver oxidation. The effect of the heat treatment in vacuum is compared with that in air by the characterization of the structure, specific surface area, Li transport properties and electrochemical performance of Ag/LMO composites. Surface analyses (XPS and Raman spectroscopy) show that the nature of the coating (~3 wt.%) differs with the calcination atmosphere: Ag/LMO(v) calcined in vacuum displays Ag nanospheres and minor AgO content on its surface (specific surface area of 4.1 m2 g−1), while Ag/LMO(a) treated in air is mainly covered by the AgO insulating phase (specific surface area of 0.6 m2 g−1). Electrochemical experiments emphasize that ~3 wt.% Ag coating is effective to minimize the drawbacks of the spinel LiMn2O4 (Mn dissolution, cycling instability, etc.). The Ag/LMO(v) electrode shows high capacity retention, good cyclability at C/2 rate and capacity fade of 0.06% per cycle (in 60 cycles).

Microporous Polycarbazole with High Specific Surface Area for Gas Storage and Separation

2012 ◽  
Vol 134 (14) ◽  
pp. 6084-6087 ◽  
Author(s):  
Qi Chen ◽  
Min Luo ◽  
Peter Hammershøj ◽  
Ding Zhou ◽  
Ying Han ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Gas Storage ◽  
High Specific Surface Area

Hierarchically porous graphene for batteries and supercapacitors

2018 ◽  
Vol 42 (8) ◽  
pp. 5634-5655 ◽  
Author(s):  
Shimeles T. Bulbula ◽  
Yi Lu ◽  
Ying Dong ◽  
Xiao-Yu Yang
Keyword(s):  
Thermal Conductivity ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Specific Capacity ◽  
Large Specific Surface Area ◽  
Storage Devices ◽  
Porous Graphene ◽  
Hierarchical Porous ◽  
Electrochemical Storage

Hierarchical porous graphene based materials are explored for their application as electrochemical storage devices due to their large specific surface area, high electrical and thermal conductivity, and excellent specific capacity.

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