scholarly journals Preparation of Graphene Materials and Their Applications in the Field of Electrochemistry

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Qing Liao ◽  
Tingting Song
Keyword(s):  
Electrochemical Method ◽  
Carbon Nanomaterials ◽  
Preparation Method ◽  
Chemical Properties ◽  
Modern Society ◽  
Physical And Chemical Properties ◽  
New Materials ◽  
New Type ◽  
Physical And Chemical ◽  
And Chemical Properties

In the development of modern society, many new materials and technologies have been integrated into the development of various industries. As a new type of two-dimensional carbon nanomaterials, graphene has great advantages in physical and chemical properties and is widely used in various fields of development. Among them, the electrochemical method is one of the important ways to prepare graphene materials, which has the characteristics of quickness and environmental protection, and can effectively produce a large amount of high-quality graphene and its composite materials. Based on this, the paper introduces the preparation method of graphene materials and studies the application of graphene materials in the field of electrochemistry.

Carbon Dots: Synthesis, Properties and Biomedical Applications

2021 ◽  
Author(s):  
Guili Ge ◽  
Lin Li ◽  
Dan Wang ◽  
Mingjian Chen ◽  
Zhaoyang Zeng ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Biomedical Applications ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Synthesis Properties ◽  
New Type ◽  
Low Toxicity ◽  
Good Biocompatibility ◽  
Physical And Chemical ◽  
And Chemical Properties

Carbon dots (CDs) are a new type of carbon nanomaterial that have unique physical and chemical properties, good biocompatibility, low toxicity, easy surface functionalization, making them widely used in biological...

Review of Physical Properties and Preparation of Nano-Superconducting Materials

2013 ◽  
Vol 816-817 ◽  
pp. 65-69
Author(s):  
Yi Zhang
Keyword(s):  
Transition Temperature ◽  
Chemical Properties ◽  
Material Research ◽  
Physical And Chemical Properties ◽  
Superconducting Transition ◽  
New Materials ◽  
Preparation Methods ◽  
New Material ◽  
Physical And Chemical ◽  
And Chemical Properties

New materials play an important part in today high and new technology.Superconducting nanomaterial has become the most vibrant in new material research due to its unique physical and chemical properties. This paper focuses on how small-size effect affects superconducting transition temperature, and summarizes the concrete preparation methods of superconducting nanomaterials, hoping to provide a reference for material researchers.

Bacteriochlorophyll e : structure and stereochemistry of a new type of chlorophyll from Chlorobiaceae

1976 ◽  
Vol 273 (924) ◽  
pp. 277-285 ◽  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Oxidative Degradation ◽  
Chemical Properties ◽  
Structural Formula ◽  
Side Chain ◽  
Physical And Chemical Properties ◽  
New Type ◽  
Physical And Chemical ◽  
Bacteriochlorophyll E ◽  
And Chemical Properties

A so far unknown chlorophyll has been isolated from several strains of brown-coloured chlorobacteria and has been designated bacteriochlorophyll e . Comparison of the physical and chemical properties of the new chlorophyll with those of bacteriochlorophylls c and d ( Chlorbium chlorophylls) allows one to deduce its structural formula. The stereochemistry of the hydroxyethyl side chain of bacteriochlorophylls c, d and e can be determined by a modified Horeau analysis of these pigments, and the results thus obtained are in agreement with those derived from oxidative degradation experiments. The latter method allows one furthermore to prove the structure of bacteriochlorophylls c and d proposed by Holt, and to establish the absolute configuration at carbon atoms 7 and 8. The presence of a δ-methylsubstituent in bacteriochlorophylls c and e is unambiguously demonstrated by nuclear magnetic resonance.

The recent progress of nitrogen-doped carbon nanomaterials for electrochemical batteries

2018 ◽  
Vol 6 (27) ◽  
pp. 12932-12944 ◽  
Author(s):  
Jingxia Wu ◽  
Zhiyong Pan ◽  
Ye Zhang ◽  
Bingjie Wang ◽  
Huisheng Peng
Keyword(s):  
Electrochemical Properties ◽  
Nitrogen Doping ◽  
Recent Progress ◽  
Carbon Nanomaterials ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Physical And Chemical ◽  
And Chemical Properties

Nitrogen-doping represents a general and effective method in adjusting the physical and chemical properties of carbon nanomaterials. The recent progress in the synthesis of nitrogen-doped carbon nanomaterials and their applications in batteries are carefully discussed with a focus on their electrochemical properties.

Synthesis and Evaluation of a New Type of Cationic Gemini Surfactant

2013 ◽  
Vol 652-654 ◽  
pp. 765-769
Author(s):  
Qing Wang Liu ◽  
Yun Hai Zhu ◽  
Guang Zhi Han ◽  
Zhen Zhong Fan ◽  
Ji Gang Wang ◽  
...  
Keyword(s):  
Gemini Surfactant ◽  
Chemical Properties ◽  
Target Product ◽  
Physical And Chemical Properties ◽  
Cationic Gemini Surfactant ◽  
Synthetic Product ◽  
Dimethyl Amine ◽  
New Type ◽  
Physical And Chemical ◽  
And Chemical Properties

A cationic Gemini surfactant ethane-1, 2-bis (Cetyl dimethyl brominated ammonium), denoted 16-2-16 was synthesized from ethane and Hexadecyl dimethyl amine. The properties of the product were characterized, and the physical and chemical properties were determined. The results showed that the synthetic product was the target product, and its surface tension was 3.4×10-4N/m, and the CMC was 2.2×10-4mol/L at 25°C. At the same time, its synergistic effect with common surfactants was studied; the results showed that the synthetic product had good synergic effect.

On Research of Basalt Fiber Used in Asphalt Concrete

2013 ◽  
Vol 791-793 ◽  
pp. 456-459
Author(s):  
Jian Jun Li ◽  
Yan Chun Liu
Keyword(s):  
Asphalt Concrete ◽  
Basalt Fiber ◽  
Chemical Properties ◽  
Market Value ◽  
Physical And Chemical Properties ◽  
Basalt Fibers ◽  
Green Material ◽  
New Type ◽  
Physical And Chemical ◽  
And Chemical Properties

As a new type of green material with excellent physical and chemical properties and mechanical properties. Basalt fiber are widely used in the field of civil construction. This paper focused on the use of basalt fibers to improve the mechanism of asphalt concrete, demonstrated the prospects and market value of the basalt fiber that are widely used in asphalt concrete

scholarly journals Structure and physical properties of silkworm cocoons

2012 ◽  
Vol 9 (74) ◽  
pp. 2299-2308 ◽  
Author(s):  
Fujia Chen ◽  
David Porter ◽  
Fritz Vollrath
Keyword(s):  
Physical Properties ◽  
Chemical Properties ◽  
Gas Permeation ◽  
Physical And Chemical Properties ◽  
Woven Composite ◽  
New Materials ◽  
Fibre Composites ◽  
Wide Range ◽  
Physical And Chemical ◽  
And Chemical Properties

Silkworm cocoons have evolved a wide range of different structures and combinations of physical and chemical properties in order to cope with different threats and environmental conditions. We present our observations and measurements on 25 diverse types of cocoons in a first attempt to correlate physical properties with the structure and morphology of the cocoons. These two architectural parameters appear to be far more important than the material properties of the silk fibres themselves. We consider tensile and compressive mechanical properties and gas permeation of the cocoon walls, and in each case identify mechanisms or models that relate these properties to cocoon structure, usually based upon non-woven fibre composites. These properties are of relevance also for synthetic non-woven composite materials and our studies will help formulate bio-inspired design principles for new materials.

Comparison and Analysis of the Flow Rate

2015 ◽  
Vol 669 ◽  
pp. 197-204
Author(s):  
Marek Prislupčák ◽  
Anton Panda
Keyword(s):  
Flow Rate ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
New Materials ◽  
Production Time ◽  
Construction Design ◽  
Machine Parts ◽  
Comparison And Analysis ◽  
Physical And Chemical ◽  
And Chemical Properties

Separation of materials is a fundamental technology for the production of machine parts. Division is involved in the overall use of the material and also impact on the overall production time. With the development of new materials increasing requirements for the construction, design and durability. This makes the development of new materials with higher mechanical, physical and chemical properties. These materials are difficult to machine, and this gives rise to the development of non-conventional technologies, which include water jet technology.

ZnO/ZnS (hetero)structures: ab initio investigations of polytypic behavior of mixed ZnO and ZnS compounds

2018 ◽  
Vol 74 (6) ◽  
pp. 628-642 ◽  
Author(s):  
Dejan Zagorac ◽  
Jelena Zagorac ◽  
J. Christian Schön ◽  
Nemanja Stojanović ◽  
Branko Matović
Keyword(s):  
Ab Initio ◽  
Density Functional ◽  
Local Density ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Density Approximation ◽  
New Materials ◽  
Functional Theory ◽  
Physical And Chemical ◽  
And Chemical Properties

The range of feasible ZnO/ZnS polytypes has been explored, predicting alternative structural arrangements compared with previously suggested or observed structural forms of ZnO/ZnS compounds, including bulk crystal structures, various nanostructures, heterostructures and heterojunctions. All calculations were performed ab initio using density functional theory–local density approximation and hybrid Heyd–Scuseria–Ernzerhof functionals. Specifically, pure ZnO and ZnS compounds and mixed ZnO1–x S x compounds (x = 0.20, 0.25, 0.33, 0.50, 0.60, 0.66 and 0.75) are investigated and a multitude of possible stable polytypes for ZnO/ZnS compounds creating new possibilities for synthesis of new materials with improved physical and chemical properties are identified.

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