MAGNETIC RESONANCE OF CHINESE COALS

被引：0

作者：

叶朝辉

ROBERT A.WIND

GARY E.MACIEL

机构：

[1] Academia Sinica

[2] Colorado State University

[3] Wuhan Institute of Physics

[4] USA.

[5] Department of Chemistry

[6] Laboratory of Magnetic Resonance and Atomic and Molecular Physics

来源：

Science China Mathematics | 1988年 / 08期

关键词：

NMR of coals; dynamic nuclear polarization; high resolution NMR in solids; aromaticity of coals;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper studies ten Chinese coals at different ranks by means of cross polarization and magic angle spinning, combined rotation and multiple-pulse spectroscopy, and dynamic nuclear polarization. NMR is first reported. It is found that, compared with those obtained previously coat somples from other parts of the world, some Chinese coals at lower ranks display unusual characteristics, which imply peculiar chemical structures in the coals.

引用

页码：968 / 978

页数：11

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