Seven fractions of a coal tar pitch having different molecular weights were carbonized up to 650ยฐC under a pressure of 30 MPa in closed and open gold tubes. Carbon yield and microscopic texture of the resultant products were investigated. The graphitizability was evaluated through measurements of in
Carbonization under pressure
โ Scribed by Michio Inagaki; Ki Chul Park; Morinobu Endo
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 86 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
This paper analyzes graphene-related papers using the Thomson data analyzer according to publication year, country, organization, subject and research focus, and compares the research situation of China with that of the international community in this field. We find that research relevant to graphene has developed very rapidly since 2005, which is mainly in the fields of polymer physics, materials science and applied physics. The main countries that are engaged in the study of graphene are the United States, China, Japan, Britain, Germany, etc. The hot topic in this field is the properties of graphene such as electronic conductivity and thermal conductivity, preparation methods and composite materials. In the recent 2 years, China has paid great attention to graphene research, but is far behind the leading countries.
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