scholarly journals Mesoporous Carbon in the Global World

2017 ◽  
Vol 2 (1) ◽  
pp. 54
Author(s):  
Maria Ulfa
Keyword(s):  
Mesoporous Carbon ◽  
Soft Template ◽  
Template Method ◽  
Carbon Precursor ◽  
Fuel Production ◽  
Structure Form ◽  
Hard Template ◽  
Great Opportunity ◽  
Global World ◽  
Year 2000

This review provided information about the development of the synthesis aspect, preparation and application of mesoporous carbon in the global world based on research phenomenon on 100 mesoporous carbon papers published by Elsevier, ACS dan Springer during 25 year. Review results showed that researcher began to leave sucrose and switch to non-sucrose as carbon precursor. Researchers used sucrose about 90% in 1995-2000 and in 2010-2015 decrease to become 40%. Otherwise those using non-sucrose in 1995-2000 only 10%, recently increase to 60%. For the method used to synthesis the mesoporous carbon researcher prefer used soft template (about 75 %) before year 2000 and hard template (about 60%) in 2000-2010, but now the method used with soft templates, hard templates and combinations of both are balanced. From year 1995 until 2015 total researcher used sucrose as carbon precursor about 50% and researchers about 40% using hard template method, 35% using soft template method and the others using combination both of them. Structure form of the amorphous carbons are grown, from wormholes, cubic, until hexagonal, and modification to these fours forms. Physical properties such as pore size, surface area, and structural order were developed for better performance year to year. Mesoporous carbon application up to 60% were used in the fuel production and refineries, but the other using on the communication tenhnologies and medical areas. All of the mesoporous carbon in the global world shows that mesoporous carbon is a future material which has a great opportunity to develop especially in Indonesia and other developing countries. Indonesia have  various natural resources as a carbon source, so in the future Indonesia are expected as one of the countries of mesoporous carbon supplier<br /><p> </p>

Template Synthesis to Fabrication of 3D Ordered Hierarchical Materials

2012 ◽  
Vol 602-604 ◽  
pp. 1355-1358
Author(s):  
Ren Chun Yang ◽  
Feng Yun Ma ◽  
Ding Xing Tang
Keyword(s):  
Pore Structure ◽  
Template Synthesis ◽  
Colloidal Crystals ◽  
Hydrolysis Rate ◽  
Soft Template ◽  
Template Method ◽  
Hard Template ◽  
Hierarchical Materials ◽  
The Difference

To construct 3D ordered hierarchical materials, Si, Al and Ti colloids precursors were controlled prepared via dual template method in which the colloidal crystals and P123 acted as hard-template and soft-template, respectively. The results showed that ordered hierarchical SiO2, Al2O3 and TiO2 were successfully prepared. The difference of the structure of samples suggested that hydrolysis rate of the precursors play an important role on pore structure of the samples.

High lithium and sodium anodic performance of nitrogen-rich ordered mesoporous carbon derived from alfalfa leaves by a ball-milling assisted template method

2016 ◽  
Vol 4 (44) ◽  
pp. 17491-17502 ◽  
Author(s):  
Yongzhi Zhang ◽  
Yan Meng ◽  
Li Chen ◽  
Yong Guo ◽  
Dan Xiao
Keyword(s):  
Ball Milling ◽  
Mesoporous Carbon ◽  
Crude Protein ◽  
Ordered Mesoporous Carbon ◽  
Template Method ◽  
Carbon Precursor ◽  
Ordered Mesoporous

Alfalfa leaves rich in crude protein were used as a nitrogen-containing carbon precursor to prepare N-rich ordered mesoporous carbon (OMC) by a ball-milling assisted SBA-15 template method.

scholarly journals Review of Research on Template Methods in Preparation of Nanomaterials

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Yadian Xie ◽  
Duygu Kocaefe ◽  
Chunying Chen ◽  
Yasar Kocaefe
Keyword(s):  
Chemical Properties ◽  
Synthetic Methods ◽  
Soft Template ◽  
Template Method ◽  
Hard Template ◽  
Production Methods ◽  
Different Types ◽  
Physical And Chemical ◽  
Particle Size And Structure ◽  
And Chemical Properties

The nanomaterials have been widely used in various fields, such as photonics, catalysis, and adsorption, because of their unique physical and chemical properties. Therefore, their production methods are of utmost importance. Compared with traditional synthetic methods, the template method can effectively control the morphology, particle size, and structure during the preparation of nanomaterials, which is an effective method for their synthesis. The key for the template method is to choose different templates, which are divided into hard template and soft template according to their different structures. In this paper, the effects of different types of templates on the morphology of nanomaterials during their preparation are investigated from two aspects: hard template and soft template, combined with the mechanism of action.

scholarly journals g-C3N4: Properties, Pore Modifications, and Photocatalytic Applications

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 121
Author(s):  
Jiaqi Dong ◽  
Yue Zhang ◽  
Muhammad Irfan Hussain ◽  
Wenjie Zhou ◽  
Yingzhi Chen ◽  
...  
Keyword(s):  
Pore Structure ◽  
Active Sites ◽  
Soft Template ◽  
Template Method ◽  
Hard Template ◽  
Advantages And Disadvantages ◽  
Template Free ◽  
The Impact ◽  
Photocatalytic Applications ◽  
Hard Template Method

Graphitic carbon nitride (g-C3N4), as a polymeric semiconductor, is promising for ecological and economical photocatalytic applications because of its suitable electronic structures, together with the low cost, facile preparation, and metal-free feature. By modifying porous g-C3N4, its photoelectric behaviors could be facilitated with transport channels for photogenerated carriers, reactive substances, and abundant active sites for redox reactions, thus further improving photocatalytic performance. There are three types of methods to modify the pore structure of g-C3N4: hard-template method, soft-template method, and template-free method. Among them, the hard-template method may produce uniform and tunable pores, but requires toxic and environmentally hazardous chemicals to remove the template. In comparison, the soft templates could be removed at high temperatures during the preparation process without any additional steps. However, the soft-template method cannot strictly control the size and morphology of the pores, so prepared samples are not as orderly as the hard-template method. The template-free method does not involve any template, and the pore structure can be formed by designing precursors and exfoliation from bulk g-C3N4 (BCN). Without template support, there was no significant improvement in specific surface area (SSA). In this review, we first demonstrate the impact of pore structure on photoelectric performance. We then discuss pore modification methods, emphasizing comparison of their advantages and disadvantages. Each method’s changing trend and development direction is also summarized in combination with the commonly used functional modification methods. Furthermore, we introduce the application prospects of porous g-C3N4 in the subsequent studies. Overall, porous g-C3N4 as an excellent photocatalyst has a huge development space in photocatalysis in the future.

scholarly journals Facile synthesis of mesoporous carbon microspheres/graphene composites in situ for application in supercapacitors

RSC Advances ◽  
2019 ◽  
Vol 9 (55) ◽  
pp. 32258-32269 ◽  
Author(s):  
Jing Chen ◽  
Youliang Cheng ◽  
Qingling Zhang ◽  
Changqing Fang ◽  
Linlin Wu ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Carbon Sources ◽  
Thermal Reduction ◽  
Soft Template ◽  
Template Method ◽  
Electrochemical Performances ◽  
Carbon Microspheres ◽  
Facile Synthesis ◽  
Structure Directing Agent

MCMG were in situ synthesized via a soft template method and subsequent thermal reduction by using CTAB as structure-directing agent, AMP and GO as carbon sources. As-prepared MCMG samples exhibited excellent electrochemical performances.

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