N-rich porous carbon catalysts with huge surface area from bean curd activated by K2CO3

2021 ◽  
Author(s):  
Chengfeng Yi ◽  
Lushuang Zhang ◽  
Ganghua Xiang ◽  
Xiaoyan Chen ◽  
Na Cheng ◽  
...  
Keyword(s):  
Surface Area ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Porous Structures ◽  
Nitrogen Doped ◽  
The Past ◽  
Structures And Properties ◽  
Hierarchical Porous ◽  
Carbon Catalysts ◽  
Nitrogen Doped Carbon

Nitrogen–doped carbon materials with hierarchical porous structures have attracted mountainous attentions in the field of catalysis owing to their special structures and properties in the past decades. In this study,...

Facile synthesis of nitrogen-doped carbon materials with hierarchical porous structures for high-performance supercapacitors in both acidic and alkaline electrolytes

2019 ◽  
Vol 7 (21) ◽  
pp. 13154-13163 ◽  
Author(s):  
Yuntong Li ◽  
Ling Liu ◽  
Yuzhe Wu ◽  
Tong Wu ◽  
Haiyang Wu ◽  
...  
Keyword(s):  
High Performance ◽  
Carbon Materials ◽  
Porous Structures ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Alkaline Electrolytes ◽  
Nitrogen Doped Carbon

Hierarchical porous nitrogen-doped carbon materials possess an outstanding supercapacitance performance in both acidic and alkaline electrolytes.

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.

scholarly journals High-performance electrocatalyst based on polyazine derived mesoporous nitrogen-doped carbon for oxygen reduction reaction

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29555-29563
Author(s):  
Songlin Zhao ◽  
Fushan Chen ◽  
Qunfeng Zhang ◽  
Lingtao Meng
Keyword(s):  
Renewable Energy ◽  
Oxygen Reduction Reaction ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Energy Conversion Systems ◽  
Nitrogen Doped Carbon

Nitrogen-doped porous carbon materials have high potential in metal-free electrocatalysts, which is essential for several renewable energy conversion systems.

scholarly journals Nitrogen-Doped Porous Carbon Materials Derived from Graphene Oxide/Melamine Resin Composites for CO2 Adsorption

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5293
Author(s):  
Like Ouyang ◽  
Jianfei Xiao ◽  
Housheng Jiang ◽  
Shaojun Yuan
Keyword(s):  
Graphene Oxide ◽  
Surface Area ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Co2 Adsorption ◽  
Formaldehyde Resin ◽  
Batch Adsorption ◽  
Nitrogen Doped ◽  
Porous Carbon Materials ◽  
Adsorption Sites

CO2 adsorption in porous carbon materials has attracted great interests for alleviating emission of post-combustion CO2. In this work, a novel nitrogen-doped porous carbon material was fabricated by carbonizing the precursor of melamine-resorcinol-formaldehyde resin/graphene oxide (MR/GO) composites with KOH as the activation agent. Detailed characterization results revealed that the fabricated MR(0.25)/GO-500 porous carbon (0.25 represented the amount of GO added in wt.% and 500 denoted activation temperature in °C) had well-defined pore size distribution, high specific surface area (1264 m2·g−1) and high nitrogen content (6.92 wt.%), which was mainly composed of the pyridinic-N and pyrrolic-N species. Batch adsorption experiments demonstrated that the fabricated MR(0.25)/GO-500 porous carbon delivered excellent CO2 adsorption ability of 5.21 mmol·g−1 at 298.15 K and 500 kPa, and such porous carbon also exhibited fast adsorption kinetics, high selectivity of CO2/N2 and good recyclability. With the inherent microstructure features of high surface area and abundant N adsorption sites species, the MR/GO-derived porous carbon materials offer a potentially promising adsorbent for practical CO2 capture.

Synthesis of ultrahigh-surface-area nitrogen-doped porous carbon materials from carboxymethyl cellulose based protic polyanion ionic liquids for high performance supercapacitors

2020 ◽  
Vol 4 (7) ◽  
pp. 3418-3427 ◽  
Author(s):  
Zaiquan Li ◽  
Qinqin Xu ◽  
Lin Zhang ◽  
Xia Wang ◽  
Feng He ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Surface Area ◽  
Porous Carbon ◽  
Carboxymethyl Cellulose ◽  
High Performance ◽  
Carbon Materials ◽  
Polycarboxylic Acid ◽  
Nitrogen Doped ◽  
Porous Carbon Materials ◽  
Supercapacitor Performance

Carboxymethyl cellulose was used as a sustainable polycarboxylic acid to prepare polyprotic ionic liquids, which were successfully used as precursors for the synthesis of ultrahigh-surface-area N-doped porous carbon materials with excellent supercapacitor performance.

Accurately manipulating hierarchical flower-like Fe2P@CoP@nitrogen-doped carbon spheres as an efficient carrier material of Pt-based catalyst

Nanoscale ◽  
2021 ◽  
Author(s):  
Fei Xie ◽  
Mengyu Gan ◽  
Li Ma
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Catalytic Performance ◽  
Effective Strategy ◽  
Large Specific Surface Area ◽  
Carbon Spheres ◽  
Nitrogen Doped ◽  
Porous Catalysts ◽  
Hierarchical Porous ◽  
Nitrogen Doped Carbon

Fabrication of hierarchical porous catalysts with large specific surface area and tunable architecture provides an effective strategy to promote the catalytic performance of Pt-based catalysts. Herein, we design and construct...

Performance of Partially Exfoliated Nitrogen-Doped Carbon Nanotubes Wrapped with Hierarchical Porous Carbon in Electrolytes

ChemSusChem ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1664-1677 ◽  
Author(s):  
Sandhya Rani Mangisetti ◽  
Baraneedharan Pari ◽  
Kamaraj M ◽  
Sundara Ramaprabhu
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
Hierarchical Porous Carbon ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Nitrogen Doped Carbon
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