Ultra-small Mo2C nanodots encapsulated in nitrogen-doped porous carbon for pH-universal hydrogen evolution: insights into the synergistic enhancement of HER activity by nitrogen doping and structural defects

2019 ◽  
Vol 7 (9) ◽  
pp. 4734-4743 ◽  
Author(s):  
Weiwei Han ◽  
Lulu Chen ◽  
Biao Ma ◽  
Jun Wang ◽  
Weiyu Song ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Porous Carbon ◽  
Nitrogen Doping ◽  
Synthesis Method ◽  
Carbon Layer ◽  
Structural Defects ◽  
One Pot ◽  
Structure Defects ◽  
Nitrogen Doped ◽  
Synergistic Enhancement

A facile one-pot synthesis method was used. The synergistic effect of nitrogen doping and structure defects on the carbon layer leaded to the high HER activity.

Biomass based nitrogen-doped structure-tunable versatile porous carbon materials

2017 ◽  
Vol 5 (25) ◽  
pp. 12958-12968 ◽  
Author(s):  
Xin Zhou ◽  
Penglei Wang ◽  
Yagang Zhang ◽  
Lulu Wang ◽  
Letao Zhang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Porous Carbons ◽  
One Pot ◽  
Nitrogen Doped ◽  
Porous Carbon Materials ◽  
Surface Areas ◽  
Cellulose Carbamate ◽  
Specific Surface Areas

Hierarchical nitrogen-doped porous carbons (HNPCs) with tunable pore structures and ultrahigh specific surface areas were designed and prepared from sustainable biomass precursor cellulose carbamate via simultaneous carbonization and activation by a facile one-pot approach.

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.

scholarly journals Synthesis of polypyrrole/nitrogen-doped porous carbon matrix composite as the electrode material for supercapacitors

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Minzhen Feng ◽  
Wei Lu ◽  
Yun Zhou ◽  
Ranran Zhen ◽  
Hongmei He ◽  
...  
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Porous Carbon ◽  
Synthesis Method ◽  
Carbon Matrix ◽  
Structure Characterization ◽  
Koh Activation ◽  
Nitrogen Doped ◽  
Matrix Surface ◽  
Capacitance Performance

Abstract Polypyrrole complex nitrogen-doped porous carbon matrix (PPy/N-PCM) was synthesized by a simple two-step method. Firstly, graphene oxide was prepared by the modified Hummers method. Secondly, Polypyrrole was compounded on the graphene oxide substrate, and the carbon matrix with a high specific surface area was obtained through high-temperature carbonization and KOH activation, and polypyrrole was used as a nitrogen source for the final nitrogen-doped composite material. The structure characterization of the carbon matrix and the final composite material shows that the carbon matrix surface has obvious porous structure, and the polypyrrole nanospheres grow uniformly on the porous carbon matrix surface. The electrochemical evaluation show that the prepared PPy/N-PCM has excellent supercapacitor performance, and its specific capacitance can reach 237.5 F g−1. When the current density reaches 10 A g−1, it has good cycle stability (the capacitance retention after 1000 charge and discharge is 88.53% of the initial capacitance value, which is better than pure PPy-60.76% and PPy/rGO-C-71.84%). The excellent capacitance performance, good-looking micro-morphology and simple synthesis method of the PPy/N-PCM provide the possibility for its commercialization.

scholarly journals Micro-Structure Determines the Intrinsic Property Difference of Bio-Based Nitrogen-Doped Porous Carbon—A Case Study

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1765
Author(s):  
Yingfang Jiang ◽  
Yanxia Liu ◽  
Yagang Zhang ◽  
Yidan Chen ◽  
Xingjie Zan
Keyword(s):  
Porous Carbon ◽  
Carbon Materials ◽  
Raw Materials ◽  
Low Cost ◽  
Synthesis Method ◽  
Intrinsic Property ◽  
Nitrogen Doped ◽  
Surface Areas ◽  
Cottonseed Hull ◽  
And Performance

Biomass-derived porous carbon materials have drawn considerable attention due to their natural abundance and low cost. In this work, nitrogen-doped porous carbons with high nitrogen content and large surface areas were designed and prepared from cottonseed hull and cattail. The two plant-based biomass compositions are similar, but the structures are very different, generating distinctly different property and performance of the prepared carbon materials. NRPC-112 has good electrochemical properties, while CN800 has good adsorption properties. By comparing the microstructure differences between the two starting materials, it was found that the structure of the raw materials would significantly affect the properties and performance of the materials. The work provided an important theoretical basis and reference for the selection of bio-resources for preparing carbon material. It is also important for choosing the appropriate synthesis method, process optimization, and application scenarios.

scholarly journals Controllable synthesis of three-dimensional nitrogen-doped hierarchical porous carbon and its application in the detection of lead

RSC Advances ◽  
2019 ◽  
Vol 9 (33) ◽  
pp. 18902-18908 ◽  
Author(s):  
Runying Dai ◽  
Xue Ma ◽  
Quan Xu ◽  
Limin Lu
Keyword(s):  
High Temperature ◽  
Porous Carbon ◽  
Three Dimensional ◽  
Temperature Treatment ◽  
High Temperature Treatment ◽  
Hierarchical Porous Carbon ◽  
Controllable Synthesis ◽  
One Pot ◽  
Nitrogen Doped ◽  
Hierarchical Porous

In this study, gelatin-based microcapsules were first proposed as a carbon source for the synthesis of nitrogen-doped hierarchical porous carbon (N-HPC) via a facile one-pot high-temperature treatment.

Highly Nitrogen-Doped Porous Carbon Nanosheets Electrocatalyst from Ethylenediaminetetraacetic Acid Ferric Sodium Salt for Oxygen Reduction Reaction

2020 ◽  
Vol 12 (3) ◽  
pp. 317-323
Author(s):  
Yong Liu ◽  
Tao Wang ◽  
Guo Gong ◽  
Yong Zhang
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Ethylenediaminetetraacetic Acid ◽  
Synthesis Method ◽  
Structural Features ◽  
Reduction Reaction ◽  
Carbon Nanosheets ◽  
Nitrogen Doped

Fuel cells have the great prospect in energy storage technology from the perspective of energy conservation and ecological protection. However, oxygen reduction reaction (ORR) always proceeds sluggishly leads to limited performance. Choosing an excellent ORR electrocatalyst is considered to be an effective strategy. Herein, we have presented an easy synthesis method to prepare highly nitrogen-doped porous carbon nanosheets (HNPC) electrocatalysts. The as-synthesized HNPC electrocatalysts delivered excellent catalytic properties by 4e– transfer pathway with extremely few HO2–, due to excellent compositional characteristics (highly N doping) and structural features (porosity). It provides some guidance for the synthesis of excellent electrocatalysts, which will have certain significance for the development of fuel cells.

scholarly journals MOF-templated cobalt nanoparticles embedded in nitrogen-doped porous carbon: a bifunctional electrocatalyst for overall water splitting

2019 ◽  
Vol 1 (6) ◽  
pp. 2293-2302 ◽  
Author(s):  
Karabi Nath ◽  
Kousik Bhunia ◽  
Debabrata Pradhan ◽  
Kumar Biradha
Keyword(s):  
Water Splitting ◽  
Porous Carbon ◽  
Cobalt Nanoparticles ◽  
One Pot ◽  
Bifunctional Electrocatalyst ◽  
Nitrogen Doped ◽  
Overall Water Splitting

A carboxylate based 3D-anionic MOF-derived bifunctional electrocatalyst was fabricated for overall water splitting through a one-pot carbonization technique.

scholarly journals Facile one-pot synthesis of magnetic nitrogen-doped porous carbon for high-performance bilirubin removal from BSA-rich solution

RSC Advances ◽  
2017 ◽  
Vol 7 (4) ◽  
pp. 2081-2091 ◽  
Author(s):  
Chun-Fang Ma ◽  
Qiang Gao ◽  
Jing Zhou ◽  
Qi-Xuan Chen ◽  
Bo Han ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Adsorption Properties ◽  
One Pot ◽  
Nitrogen Doped ◽  
One Pot Synthesis ◽  
Rich Solution

A magnetic nitrogen-doped porous carbon was facilely prepared and exhibited superior adsorption properties for BSA-boned bilirubin.

Co-CeOx nanoparticles anchored on a nitrogen-doped carbon nanosheet: a synergistic effect for highly efficient hydrolysis of sodium borohydride

2021 ◽  
Author(s):  
Longhua Yao ◽  
Xiugang Li ◽  
Wenfang Peng ◽  
Qilu Yao ◽  
Jianhui Xia ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Sodium Borohydride ◽  
Porous Carbon ◽  
Catalytic Performance ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Nitrogen Doped Carbon ◽  
Hydrolysis Of

Amorphous and electron-rich Co-CeOx nanoparticles anchored on a N-doped porous carbon nanosheet show remarkable catalytic performance for the hydrolysis of sodium borohydride.

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