scholarly journals Polymer-Derived Nitrogen-Doped Carbon Nanosheet Cluster and Its Application for Water Purification

Macromol ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 84-93
Author(s):  
Xiaoyan Yu ◽  
Ting Zheng ◽  
Srikanth Pilla
Keyword(s):  
Rhodamine B ◽  
Condensation Reaction ◽  
Surface Condition ◽  
High Surface ◽  
High Surface Area ◽  
Sheet Thickness ◽  
Nitrogen Doped ◽  
Surface Areas ◽  
Specific Surface Areas ◽  
Nitrogen Doped Carbon

A series of nitrogen-doped carbons (NCs) were prepared by the pyrolysis (300–900 °C) of crystalline polyazomethine (PAM) synthesized via a facile condensation reaction in methanol solvent. The controlled solvent evaporation resulted in PAM crystals in the form of nanosheet clusters with a sheet thickness of ~50 nm. Such architecture was maintained after pyrolysis, obtaining porous CNs of high specific surface areas of up to 700 m2/g. The resulting NCs were used as absorbents to remove aromatic Rhodamine B from water. The NC that pyrolyzed at 750 °C exhibited the highest adsorption capacity (0.025 mg/mg), which is attributed to its high surface area and surface condition.

Direct Synthesis of Nitrogen-Doped Carbon Nanosheets with High Surface Area and Excellent Oxygen Reduction Performance

Langmuir ◽  
2014 ◽  
Vol 30 (27) ◽  
pp. 8238-8245 ◽  
Author(s):  
Qiao Liu ◽  
Youxin Duan ◽  
Qiuping Zhao ◽  
Fuping Pan ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Surface Area ◽  
Direct Synthesis ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Surfactant-Templated Synthesis of Modified Porous Clay Heterostructure (PCH)

2008 ◽  
Vol 55-57 ◽  
pp. 317-320 ◽  
Author(s):  
K. Srithammaraj ◽  
Rathanawan Magaraphan ◽  
H. Manuspiya
Keyword(s):  
Pore Volume ◽  
Pore Diameter ◽  
Condensation Reaction ◽  
High Surface ◽  
High Surface Area ◽  
Bentonite Clay ◽  
Directed Assembly ◽  
Average Pore Diameter ◽  
Average Pore ◽  
Surface Areas

Porous Clay Heterostructures (PCHs) have been prepared by the surfactant-directed assembly of mesostructured silica within the two-dimensional interlayer galleries of clays. The PCH is an interesting material to use as entrapping system such as ethylene scavenger, owing to its high surface area with uniform and specific pore size. In the present work, the PCH was synthesized within the galleries of Na-bentonite clay by the polymerization of tetraethoxysilane (TEOS) in the presence of surfactant micelles. In addition, a mesoporous clay with organic-inorganic hybrid (HPCH) is modified via co-condensation reaction of TEOS with methyltriethoxysilane (MTS) to enhance hydrophobicity of PCH material for entrapping system. According to pore characterization, PCHs have surface areas of 421-551 m2/g, an average pore diameter in the supermicropore to small mesopore range of 4.79-5.02 nm, and a pore volume of 0.57-0.66 cc/g while HPCHs have surface areas of 533-966 m2/g, an average pore diameter of 4.28-6.38 nm, and a pore volume of 0.42-0.77cc/g.

scholarly journals Fabrication of monodisperse nitrogen-doped carbon double-shell hollow nanoparticles for supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (33) ◽  
pp. 20694-20699 ◽  
Author(s):  
Juyoung Yun ◽  
Jaemoon Jun ◽  
Jungsup Lee ◽  
Jaehoon Ryu ◽  
Kisu Lee ◽  
...  
Keyword(s):  
Current Density ◽  
Electrode Material ◽  
Nitrogen Doping ◽  
High Surface ◽  
High Surface Area ◽  
High Specific Capacitance ◽  
Hollow Nanoparticles ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
A Current

A supercapacitor based on nitrogen-doped carbon double shell hollow nanoparticles as the electrode material exhibited a high specific capacitance of 202 F g−1at a current density of 0.5 A g−1due to high surface area and nitrogen-doping.

Optimized synthesis of nitrogen-doped carbon with extremely high surface area for adsorption and supercapacitor

2021 ◽  
Vol 538 ◽  
pp. 147961
Author(s):  
Baogen Liu ◽  
Rui Shi ◽  
Ruofei Chen ◽  
Chunhao Wang ◽  
Ke Zhou ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Synthesis of Dense Mesoporous Silica with High Surface Area by Hydrothermal Hot-Pressing (HHP) Method

2007 ◽  
Vol 124-126 ◽  
pp. 1833-1836 ◽  
Author(s):  
Mari Takimura ◽  
Hidezumi Nagata ◽  
Yuki Yamasaki ◽  
Atsushi Nakahira
Keyword(s):  
Mesoporous Silica ◽  
Specific Surface ◽  
Surface Area ◽  
Hot Pressing ◽  
High Surface ◽  
High Surface Area ◽  
Surface Areas ◽  
Mesopore Structure ◽  
Subsequent Calcination ◽  
Specific Surface Areas

In this study, the synthesis of the bulky and dense mesoporous silica such as FSM was attempted by a hydrothermal hot-pressing (HHP) with a surfactant as a template and a subsequent calcination. According to TEM observation, the dense bulks obtained by HHP had a hexagonal mesopore structure. Also, these dense FSM bulks possessed high specific surface areas. Furthermore, Ag-supported dense FSM bulks were successfully synthesized by HHP with Ag salt and a subsequent calcination in H2. Thus, this HHP method is useful for synthesizing dense bulks and simultaneous supporting novel metals such as Ag on bulky FSM.

Metastable FeCN2@Nitrogen-Doped Carbon with High Pseudocapacitance as Anode Material for Sodium Ion Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
hui qi ◽  
Chen Xu Zhao ◽  
Jianfeng Huang ◽  
Chaozheng He ◽  
Lin Tang ◽  
...  
Keyword(s):  
Surface Area ◽  
Anode Material ◽  
High Surface ◽  
High Surface Area ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Severe Problem ◽  
Nitrogen Doped ◽  
Fast Charging ◽  
Nitrogen Doped Carbon

Pseudocapacitive material provides a good solution for fast charging anodes of sodium ion batteries (SIB). However, high surface area induced pseudocapacitive materials are faced with a severe problem of low...

scholarly journals Preparation of Nitrogen-Doped Carbon Materials from Monosodium Glutamate and Application in Reduction of p-Nitrophenol

2018 ◽  
Vol 13 (1) ◽  
pp. 89
Author(s):  
Ke-ying Cai ◽  
Ying Mei Zhou ◽  
Peng Wang ◽  
Huan Li ◽  
Yan Li ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Carbon Materials ◽  
Monosodium Glutamate ◽  
High Surface ◽  
High Surface Area ◽  
Heterogeneous Reactions ◽  
X Ray ◽  
Nitrogen Doped ◽  
Bismuth Nanoparticles ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbons (NCs) as supports for metal catalysts used in heterogeneous reactions are increasingly being investigated. In this work, NCs were prepared from monosodium glutamate (MSG) by direct carbonization, which were used as supporters to prepare Bi/NC catalysts. The Bi/NC catalysts were characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM), and nitrogen adsorption isotherm. The results indicate that nitrogen was doped in the formation of pyridinic N, pyrrolic N, and graphitic N. The NCs possess high surface area (~652 m2/g) and uniform mesopore size (~2.11 nm). Bismuth nanoparticles (NPs) dispersed uniformly in NC with diameter of 10-20 nm. The catalytic performances were investigated using the reduction of 4-nitrophenol (4-NP) with excess potassium borohydride as a model reaction, the results indicating that the Bi/NC catalysts have higher activity and better reusability than the Bi/AC catalyst. Under the following conditions: 100 mL of 4-NP (2 mM), 0.03 g of 3%Bi/NC, n(KBH4) : n(4-NP) = 40:1, and at room temperature, the rate constant k can reach 0.31 min-1. Copyright © 2018 BCREC Group. All rights reservedReceived: 28th July 2017; Revised: 1st September 2017; Accepted: 7th September 2017; Available online: 22nd January 2018; Published regularly: 2nd April 2018How to Cite: Cai, K.Y., Zhou, Y.M., Wang, P., Li, H., Li, Y., Tao, W. (2018). Preparation of Nitrogen-Doped Carbon Materials from Monosodium Glutamate and Application in Reduction of p-Nitrophenol. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (1): 89-96 (doi:10.9767/bcrec.13.1.1428.89-96) 

Nitrogen-doped carbon aerogels with high surface area for supercapacitors and gas adsorption

2018 ◽  
Vol 16 ◽  
pp. 1-7 ◽  
Author(s):  
Fan-Yue Zeng ◽  
Zhu-Yin Sui ◽  
Shan Liu ◽  
Hai-Peng Liang ◽  
Han-Hui Zhan ◽  
...  
Keyword(s):  
Surface Area ◽  
Gas Adsorption ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Aerogels ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon
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