๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

High-temperature high-pressure 1H-NMR study on formation of carbon spherules

โœ Scribed by S. Shimokawa; E. Yamada; T. Yokono; J. Yamada; Y. Sanada; M. Inagaki

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
182 KB
Volume
24
Category
Article
ISSN
0008-6223

No coin nor oath required. For personal study only.

โœฆ Synopsis

Carbon spherules, nuclear magnetic resonance (NMR), coal tar pitch, PVC pitch.

Carbonization under pressure modifies the reaction process so as to give a high carbon yield and also to form a structure in the resultant solid carbon which is different from that formed under normal pressures. Marsh er a/. [ 1,2] reported

๐Ÿ“œ SIMILAR VOLUMES

High-temperature and high-pressure 1H NM
High-temperature and high-pressure 1H NMR study on carbonization of pitch
โœ S. Shimokawa; E. Yamada; T. Yokono; S. Iyama; Y. Sanada ๐Ÿ“‚ Article ๐Ÿ“… 1984 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 321 KB

An autoclave-type 'H NMR probe has been developed to monitor the carbonization process of such carbonaceous materials as coal and pitch under high pressures up to 10 MPa. In the early stages of the carbonization of pitch, the change in hydrogen aromaticity, fHe, was found to be dependent on the appl

High temperature 1 H NMR study of mesoph
High temperature 1 H NMR study of mesophase formation
โœ K. Miyazawa; T. Yokono; Y. Sanada; E. Yamada; S. Shimokawa ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 286 KB

The formation of mesophase during the liquid-phase carbonization of organic materials, pitches, coals and so on, has been widely investigated by means of various techniques and apparatuses

High temperature 1H-NMR study of coal an
High temperature 1H-NMR study of coal and pitch at the early stages of carbonization
โœ Kunio Miyazawa; Tetsuro Yokono; Yuzo Sanada ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 225 KB

The temperature dependence of the 'H-NMR absorption in coats and pitches have been obtained using a pulsed Fourier transform NMR spectrometer with a high temperature probe. The samples as received were heated in the high temperature probe and NMR spectra were obtained simultaneously. With increasing

Studies on the early stage of carbonizat
Studies on the early stage of carbonization of petroleum pitch by means of high-temperature 1H-NMR and ESR
โœ Kiyoshi Azami; Tetsuro Yokono; Yuzo Sanada; Seiichi Uemura ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 663 KB

The early stage of carbonization of petroleum pitches has been studied by in-situ, hightemperature 'H-NMR and ESR techniques. Well-resolved 'H-NMR spectra were found to provide cletailed information about the mesophase formation in the course of pyrolysis. The process of mesophase generation during