Imine-Linked Polymer Based Nitrogen-Doped Porous Activated Carbon for Efficient and Selective CO2 Capture

Nitrogen-doped porous activated carbon (PAC) has been fabricated via a facile heat-treatment and chemical activation of cocoon silk. The prepared PAC exhibits excellent ORR catalytic activity.

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Nitrogen-Doped Hierarchical Porous Activated Carbon Derived from Paddy for High-Performance Supercapacitors

Materials ◽

10.3390/ma14020318 ◽

2021 ◽

Vol 14 (2) ◽

pp. 318

Author(s):

Yudan Yuan ◽

Yi Sun ◽

Zhichen Feng ◽

Xingjian Li ◽

Ruowei Yi ◽

...

Keyword(s):

Activated Carbon ◽

Energy Density ◽

Specific Capacitance ◽

High Performance ◽

High Energy ◽

High Energy Density ◽

Scale Production ◽

Nitrogen Doped ◽

Hierarchical Porous ◽

Porous Activated Carbon

A facile and environmentally friendly fabrication is proposed to prepare nitrogen-doped hierarchical porous activated carbon via normal-pressure popping, one-pot activation and nitrogen-doping process. The method adopts paddy as carbon precursor, KHCO3 and dicyandiamide as the safe activating agent and nitrogen dopant. The as-prepared activated carbon presents a large specific surface area of 3025 m2·g−1 resulting from the synergistic effect of KHCO3 and dicyandiamide. As an electrode material, it shows a maximum specific capacitance of 417 F·g−1 at a current density of 1 A·g−1 and very good rate performance. Furthermore, the assembled symmetric supercapacitor presents a large specific capacitance of 314.6 F·g−1 and a high energy density of 15.7 Wh·Kg−1 at 1 A·g−1, maintaining 14.4 Wh·Kg−1 even at 20 A·g−1 with the energy density retention of 91.7%. This research demonstrates that nitrogen-doped hierarchical porous activated carbon derived from paddy has a significant potential for developing a high-performance renewable supercapacitor and provides a new route for economical and large-scale production in supercapacitor application.

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Recycling Biowaste to Synthesize Nitrogen-Doped Highly Porous Activated Carbon Scaffolds for Selenium Stuffing with Superior Electrochemical Properties

ACS Applied Energy Materials ◽

10.1021/acsaem.1c00066 ◽

2021 ◽

Author(s):

Muhammad Rashad ◽

Muhammad Asif

Keyword(s):

Activated Carbon ◽

Electrochemical Properties ◽

Nitrogen Doped ◽

Superior Electrochemical Properties ◽

Highly Porous ◽

Porous Activated Carbon

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Ultrahigh-CO2 Adsorption Capacity and CO2/N2 Selectivity by Nitrogen-Doped Porous Activated Carbon Monolith

Bulletin of the Chemical Society of Japan ◽

10.1246/bcsj.20190336 ◽

2020 ◽

Vol 93 (3) ◽

pp. 421-426 ◽

Cited By ~ 1

Author(s):

Akram A. Alabadi ◽

Haider A. Abbood ◽

Ammar S. Dawood ◽

Bien Tan

Keyword(s):

Activated Carbon ◽

Adsorption Capacity ◽

Co2 Adsorption ◽

Nitrogen Doped ◽

Carbon Monolith ◽

Co2 Adsorption Capacity ◽

Activated Carbon Monolith ◽

Porous Activated Carbon

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Nitrogen-Doped Graphene Iron-Based Particle Electrode Outperforms Activated Carbon in Three-Dimensional Electrochemical Water Treatment Systems

Water ◽

10.3390/w12113121 ◽

2020 ◽

Vol 12 (11) ◽

pp. 3121

Author(s):

Hosna Ghanbarlou ◽

Nikoline Loklindt Pedersen ◽

Morten Enggrob Simonsen ◽

Jens Muff

Keyword(s):

Activated Carbon ◽

Three Dimensional ◽

Cell Voltage ◽

Reduction Reaction ◽

Process Data ◽

Nitrogen Doped ◽

Pesticide Removal ◽

Optimal Value ◽

Nitrogen Doped Graphene ◽

Doped Graphene

The synergy between electrochemical oxidation and adsorption on particle electrodes was investigated in three-dimensional (3D) systems for p-nitrosodimethylaniline (RNO) decolorization and pesticide removal. A comparison was made between granular activated carbon (GAC) and a novel synthesized nitrogen-doped graphene-based particle electrode (NCPE). Experiments on RNO decolorization show that the synergy parameter of the 3D-NCPE system was improved 3000 times compared to the studied 3D-GAC system. This was due to the specific nanostructure and composition of the NCPE material. Nitrogen-doped graphene triggered an oxygen reduction reaction, producing hydrogen peroxide that simultaneously catalyzed on iron sites of the NCPEs to hydroxyl radicals following the electro-Fenton (EF) process. Data showed that in the experimental setup used for the study, the applied cell voltage required for the optimal value of the synergy parameter could be lowered to 5V in the 3D-NCPEs process, which is significantly better than the 15–20 V needed for synergy to be found in the 3D-GAC process. Compared to previous studies with 3D-GAC, the removal of pesticides 2,6 dichlorobenzamide (BAM), 2-methyl-4-chlorophenoxyaceticacid (MCPA), and methylchlorophenoxypropionic acid (MCPP) was also enhanced in the 3D-NCPE system.

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