scholarly journals Synthesis of mesoporous ceria using metal- and halogen-free ordered mesoporous carbon as a hard template

2019 ◽  
Vol 1 (12) ◽  
pp. 4772-4782 ◽  
Author(s):  
Farzeen Sakina ◽  
Juan Manuel Muñoz-Ocaña ◽  
Ainuona Bouziane ◽  
Miguel Lopez-Haro ◽  
Richard T. Baker
Keyword(s):  
Electron Microscopy ◽  
Mesoporous Carbon ◽  
Free Carbon ◽  
Ordered Mesoporous Carbon ◽  
Hard Template ◽  
Carbon Template ◽  
Ordered Mesoporous ◽  
Halogen Free

Nanostructure of ordered mesoporous ceria nanocast from a metal- and halogen-free carbon template determined by physisorption, electron microscopy and tomography.

ELECTROCHEMICAL PERFORMANCE OF ORDERED MESOPOROUS CARBON MODIFIED BY OXIDATIVE TREATMENT WITH AQUEOUS NITRIC ACID

2016 ◽  
Vol 78 (3-2) ◽  
Author(s):  
Nur Izzatie Hannah Razman ◽  
Salasiah Endud ◽  
Izan Izwan Misnon ◽  
Zainab Ramli
Keyword(s):  
Electron Microscopy ◽  
Nitric Acid ◽  
Electrochemical Performance ◽  
Mesoporous Carbon ◽  
Nitrogen Adsorption ◽  
Ordered Mesoporous Carbon ◽  
Replication Process ◽  
Oxidative Treatment ◽  
Ordered Mesoporous ◽  
Aqueous Nitric Acid

In this study, ordered mesoporous carbon (OMC) was prepared via nano-casting method by using Santa Barbara Amorphous (SBA)-15 as a template and sucrose as a carbon precursor. The OMC was subsequently oxidized with aqueous nitric acid and referred as MOMC. The physicochemical properties of OMC and MOMC were determined using nitrogen adsorption–desorption analyser, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR). The results proved that the carbon replication process was successful. The electrochemical performance tests were carried out using cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) in 1 M KOH electrolyte for 1000 cycles. After oxidative treatment, the specific surface area and pore volume of OMC decreased but the specific capacitance of the electrode material has significantly increased from 117      F g–1 to 344 F g–1 at a scan rate of 10 mV s–1.   

High Efficient Photoreduction CO2 with H2O on Metal Cu-Modified Graphitic Ordered Mesoporous Carbon Supported TiO2 Catalysts under Simulated Solar

2014 ◽  
Vol 906 ◽  
pp. 39-44
Author(s):  
Cheng Li Zhang ◽  
Shi Fei Kang ◽  
Qian Yu Zhang ◽  
Xi Li
Keyword(s):  
Electron Microscopy ◽  
Mesoporous Carbon ◽  
Nitrogen Adsorption ◽  
High Specific Surface Area ◽  
Ordered Mesoporous Carbon ◽  
Solar Irradiation ◽  
Transmission Electron Microscopy Analysis ◽  
Ordered Mesoporous ◽  
High Efficient ◽  
Electron Microscopy Analysis

Cu-modified graphitic ordered mesoporous carbon supported TiO2 catalyst was synthesized based on a hard template method. X-ray diffraction, nitrogen adsorption-desorption, scanning electron microscopy and transmission electron microscopy analysis techinques were used to characterize the sample. It was observed that copper and anatase TiO2 nanoparticles were well dispersed in the Cu-modified mesoporous graphitic carbon, and the resulting composite with ordered mesostructure and high specific surface area exhibited an exceptionally high activity in the photocatalytic reduction of CO2 with H2O under simulated solar irradiation.

A Facile Way to Synthesize Ordered Mesoporous Carbon Replicated by Mesoporous Silicas

2007 ◽  
Vol 121-123 ◽  
pp. 69-73
Author(s):  
Wei Hua Shen ◽  
Jian Lin Shi ◽  
Yu Fang Zhu
Keyword(s):  
Molecular Sieves ◽  
Furfuryl Alcohol ◽  
Mesoporous Carbon ◽  
Ordered Mesoporous Carbon ◽  
Mesoporous Silicas ◽  
Hard Template ◽  
Xrd Pattern ◽  
Ordered Mesoporous ◽  
One Step ◽  
N2 Sorption

High ordered mesoporous carbon molecular sieves designated as CMK-3 and CMK-5 was synthesized using mesoporous silica SBA-15 as hard template, pre-polymerized furfuryl alcohol as a carbon souse by one-step impregnation. The effect of the furfuryl alcohol to silicas ratio have been investigated. XRD pattern, N2 sorption, FE-SEM, TEM, TG-DSC was used to characterize the property of the product. These results show that the CMK-3 and CMK-5 type mesoporous carbon can be controlled and facilely obtained.

Pore Size Control of Ordered Mesoporous Carbons and Adsorption Performance of Dye Molecules

2014 ◽  
Vol 548-549 ◽  
pp. 38-42
Author(s):  
Yang Cao ◽  
Jian Zhong Zhu ◽  
Ying Ding ◽  
Gang Han ◽  
Rong Liang Fan ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Mesoporous Carbon ◽  
Selective Adsorption ◽  
Size Control ◽  
Ordered Mesoporous Carbon ◽  
Assembly Method ◽  
Ordered Mesoporous

Different kinds of mesoporous carbon materials can be obtained through the use of different templates or control condition. The study describes the adsorption behavior of dyes such as rhodamine B, methylthionine chloride and reactive red from aqueous solution using ordered mesoporous carbon in different pore size distribution. In this study, the method of controlling the aperture of ordered mesoporous carbon is changing the mass ratio of the revised template and carbon source. Ordered mesoporous carbon was synthesized with the evaporation induced self-assembly method in different proportion of template agent (F127) and phenolic resin and employed to evaluate the effects of initial concentration, contact time, pH and temperature on the removal of dye solution in batch experiments. The samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption-desorption. These analyses reveal that the mesoporous carbon have ordered structure. The experimental results indicated the ordered mesoporous carbon in different pore size distribution showed significant differences in the adsorption of different dyes and it was provided with an excellent selective adsorption.

Dual-template synthesis of ordered mesoporous carbon/Fe2O3nanowires: high porosity and structural stability for supercapacitors

2015 ◽  
Vol 3 (43) ◽  
pp. 21501-21510 ◽  
Author(s):  
Junkai Hu ◽  
Malachi Noked ◽  
Eleanor Gillette ◽  
Fudong Han ◽  
Zhe Gui ◽  
...  
Keyword(s):  
Structural Stability ◽  
Template Synthesis ◽  
Mesoporous Carbon ◽  
Ordered Mesoporous Carbon ◽  
High Porosity ◽  
Hard Template ◽  
Ordered Mesoporous ◽  
Template Methods ◽  
Dual Template Synthesis

Dual-templated OMCNWs present the advantages of soft- & hard-template methods, leading to a structure-induced capacitance improvement of Fe2O3nanoparticles.

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