A one-step carbonization route towards nitrogen-doped porous carbon hollow spheres with ultrahigh nitrogen content for CO2 adsorption

2015 ◽  
Vol 51 (62) ◽  
pp. 12423-12426 ◽  
Author(s):  
Yu Wang ◽  
Houbing Zou ◽  
Shangjing Zeng ◽  
Ying Pan ◽  
Runwei Wang ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Porous Carbon ◽  
Co2 Adsorption ◽  
High Surface ◽  
Hollow Spheres ◽  
High Surface Area ◽  
Nitrogen Sources ◽  
Nitrogen Doped ◽  
One Step ◽  
Carbon Hollow Spheres

N-doped porous carbon hollow spheres with an ultrahigh nitrogen content of 15.9 wt% and a high surface area of 775 m2 g−1 were prepared using MF nanospheres as hard templates and nitrogen sources.

Cellulose generated-microporous carbon nanosheets with nitrogen doping

RSC Advances ◽  
2014 ◽  
Vol 4 (18) ◽  
pp. 9126-9132 ◽  
Author(s):  
Wenzhong Shen ◽  
Tuoping Hu ◽  
Weibin Fan
Keyword(s):  
Surface Area ◽  
Porous Carbon ◽  
Pore Volume ◽  
Nitrogen Doping ◽  
High Surface ◽  
High Surface Area ◽  
Structural Features ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Adsorption Performance

Nanosheet porous carbon with high surface area and pore volume, unique compositional and structural features endow the nitrogen-doped porous carbon nanosheets with superior CO2 adsorption performance.

Synthesis of nitrogen-doped porous carbon with superior performance as efficient supercapacitor electrodes from hazardous oily sludge waste

2019 ◽  
Vol 12 (04) ◽  
pp. 1950060
Author(s):  
Xiaoyu Li ◽  
Zhenbo Wang ◽  
Mingyang Zhang ◽  
Bin Li ◽  
Zhiqiang Gong ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
High Surface ◽  
High Surface Area ◽  
Superior Performance ◽  
Oily Sludge ◽  
Koh Activation ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Sludge Waste

Nitrogen-doped porous carbon (NPC) for high-performance supercapacitors has been synthesized from oily sludge waste by using KOH activation combined with in situ nitrogen doping method. The NPC possesses a hierarchical porous structure with high surface area of 2514.7[Formula: see text]m2[Formula: see text]g[Formula: see text], large pore volume of 2.383[Formula: see text]cm3 g[Formula: see text] and nitrogen content of 4.32%. The NPC-based electrode can deliver an outstanding capacitance of 414.2[Formula: see text]F[Formula: see text]g[Formula: see text] at 0.5[Formula: see text]A[Formula: see text]g[Formula: see text] and a good capacitance rate performance of 307.5[Formula: see text]F[Formula: see text]g[Formula: see text] (74.2% retention) at 50[Formula: see text]A[Formula: see text]g[Formula: see text]. Moreover, the NPC exhibits an excellent cycling stability with little loss of capacitance after 5000 cycles at 5[Formula: see text]A[Formula: see text]g[Formula: see text].

scholarly journals The synergistic effect of oxygen-containing functional groups on CO2 adsorption by the glucose–potassium citrate-derived activated carbon

RSC Advances ◽  
2018 ◽  
Vol 8 (68) ◽  
pp. 38965-38973 ◽  
Author(s):  
Baogen Liu ◽  
Haoyang Li ◽  
Xianchen Ma ◽  
Ruofei Chen ◽  
Shaobin Wang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Source ◽  
Synergistic Effect ◽  
Porous Carbon ◽  
Potassium Hydroxide ◽  
Co2 Adsorption ◽  
High Surface ◽  
High Surface Area ◽  
Potassium Citrate ◽  
Effect Of Oxygen

A high surface area activated carbon which was prepared by an innovative approach using glucose as a carbon source and neutral potassium citrate as an activator was compared with the porous carbon using corrosive potassium hydroxide as activator.

Nitrogen-Doped High Surface Area Carbon as Efficient Electrode Material for Supercapacitors

NANO ◽  
2016 ◽  
Vol 11 (07) ◽  
pp. 1650076 ◽  
Author(s):  
Kanjun Sun ◽  
Qian Yang ◽  
Guohu Zhao ◽  
Hui Peng ◽  
Guofu Ma ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
Electrode Material ◽  
High Surface ◽  
High Surface Area ◽  
Polyaspartic Acid ◽  
Element Analysis ◽  
Nitrogen Doped ◽  
One Step ◽  
Adsorption Desorption

Polyaspartic acid-based nitrogen-doped porous carbon (N-PC) has been prepared by one-step activation and carbonization of polyaspartic acid at 800[Formula: see text]C in N2 atmosphere. The morphologies and structures of products are characterized by X-ray diffraction, element analysis, scanning electron microscopy and N2 adsorption–desorption. The characterizations show that the morphologies and structures of the N-PC deeply depend on the additive amount of activating agent. The as-prepared activated carbon possesses irregular surface morphology with high surface area in the range of 1600–1800[Formula: see text]m2 g[Formula: see text]. Furthermore, the activated carbon possesses proper amount of micropore and mesopore structures. As an electrode material for supercapacitors, the specific capacitance of N-PC is as high as 265[Formula: see text]F g[Formula: see text] at a current density of 0.5[Formula: see text]A g[Formula: see text], and it also exhibits good cyclability (retains about 93% initial capacitance after 5000 cycles).

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