Nitrogen-doped porous carbon with complicated architecture and superior K+ storage performance

2021 ◽  
Author(s):  
Yongsheng Zhou ◽  
Yingchun Zhu ◽  
Bingshe Xu ◽  
Xueji Zhang
Keyword(s):  
Surface Area ◽  
Functional Groups ◽  
Porous Carbon ◽  
Interlayer Spacing ◽  
Large Surface Area ◽  
Hierarchically Porous ◽  
Nitrogen Doped ◽  
Storage Performance ◽  
Porous Architecture

Benefiting from the synthetic effects of the hierarchically porous architecture, rich nitrogen functional groups, large surface area, and enlarged interlayer spacing, the obtained CHTT-N exhibited superior K+ storage performance.

Ultrahigh-surface-area nitrogen-doped hierarchically porous carbon materials derived from chitosan and betaine hydrochloride sustainable precursors for high-performance supercapacitors

2019 ◽  
Vol 3 (5) ◽  
pp. 1215-1224 ◽  
Author(s):  
Jian Cheng ◽  
Qinqin Xu ◽  
Xia Wang ◽  
Zaiquan Li ◽  
Fuzhong Wu ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Surface Area ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Hierarchically Porous ◽  
Nitrogen Doped ◽  
Porous Carbon Materials ◽  
Betaine Hydrochloride

A biobased polyelectrolyte was prepared and used successfully as a precursor for the fabrication of N-doped hierarchically porous carbon materials with tunable electrochemical properties in supercapacitors.

A novel eutectic solvent precursor for efficiently preparing N-doped hierarchically porous carbon nanosheets with unique surface functional groups and micro-pores towards dual-carbon lithium-ion capacitors

2021 ◽  
Author(s):  
Kaixiang Zou ◽  
Yuanfu Deng ◽  
Weijing Wu ◽  
Shiwei Zhang ◽  
Guohua Chen
Keyword(s):  
Functional Groups ◽  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Surface Functional Groups ◽  
Carbon Nanosheets ◽  
Hierarchically Porous ◽  
Li Ion ◽  
Unique Surface

High performance carbon-based materials are ideal electrode materials for Li-ion capacitors (LICs), but there are still many challenges such as the complicated preparation preocesses, high cost and low yield. Also,...

scholarly journals Effect of Air Oxidation on Texture, Surface Properties and Dye Adsorption of Wood-Derived Porous Carbon Materials

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1675 ◽  
Author(s):  
Suhong Ren ◽  
Liping Deng ◽  
Bo Zhang ◽  
Yafang Lei ◽  
Haiqing Ren ◽  
...  
Keyword(s):  
Surface Area ◽  
Functional Groups ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Dye Adsorption ◽  
Carbon Surface ◽  
Air Oxidation ◽  
Activation Temperature ◽  
Porous Carbon Materials ◽  
Hierarchical Porous

Hierarchical porous carbon materials made from cork were fabricated using a facile and green method combined with air activation, without any templates and chemical agents. The influence of air activation on the texture and other surface characteristics of the carbon materials were evaluated by various characterization techniques. Results indicate that air oxidation can effectively improve the surface area and the hierarchical porous structure of carbon materials, as well as increase the number of oxygen-containing functional groups on the carbon surface. The specific surface area and the pore volume of the carbon material activated by air at 450 °C (C800-M450) can reach 580 m2/g and 0.379 cm3/g, respectively. These values are considerably higher than those for the non-activated material (C800, 376 m2/g, 0.201 cm3/g). The contents of the functional groups (C–O, C=O and O–H) increased with rising activation temperature. After air activation, the adsorption capacity of the carbon materials for methylene blue (MB) and methyl orange (MO) was increased from 7.7 and 6.4 mg/g for C800 to 312.5 and 97.1 mg/g for C800-M450, respectively. The excellent dye removal of the materials suggests that the porous carbon obtained from biomass can be potentially used for wastewater treatment.

Cellulose-derived nitrogen-doped hierarchically porous carbon for high-performance supercapacitors

Cellulose ◽  
2018 ◽  
Vol 26 (2) ◽  
pp. 1195-1208 ◽  
Author(s):  
Peng Song ◽  
XiaoPing Shen ◽  
XiaoMei He ◽  
KaiHui Feng ◽  
LiRong Kong ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Hierarchically Porous ◽  
Nitrogen Doped

N-Doped porous carbon nanotubes: synthesis and application in catalysis

2017 ◽  
Vol 53 (5) ◽  
pp. 929-932 ◽  
Author(s):  
Zhenzhen Yang ◽  
Zhenghui Liu ◽  
Hongye Zhang ◽  
Bo Yu ◽  
Yanfei Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
Hydrogen Transfer ◽  
Catalytic Efficiency ◽  
Oxidation Reactions ◽  
Hierarchically Porous ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Hierarchically porous nitrogen-doped carbon nanotubes were prepared; they exhibited high catalytic efficiency for C–H arylation, hydrogen transfer and oxidation reactions.

scholarly journals Ultrafine MoO2 nanoparticles encapsulated in a hierarchically porous carbon nanofiber film as a high-performance binder-free anode in lithium ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (64) ◽  
pp. 37556-37561
Author(s):  
Xin Chen ◽  
Guojun Gao ◽  
Zhipeng Wu ◽  
Jun Xiang ◽  
Xiaoqiang Li ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Hierarchically Porous ◽  
Storage Performance ◽  
Porous Carbon Nanofiber ◽  
Binder Free ◽  
Nanofiber Film ◽  
Li Storage

A novel binder-free LIB anode made of ultrafine MoO2 nanoparticles encapsulated in hierarchically porous carbon nanofibers exhibits high Li-storage performance.

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