𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mobility and hydrogen distribution in coal as revealed by polarization inversion in high-resolution solid state 13C CPMAS n.m.r.

✍ Scribed by P. Tekely; J.J. Delpuech


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
277 KB
Volume
68
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.

✦ Synopsis


A polarizatian inversion method was employed lo study the nature of co& by high-resohtion solid-state 13C CP/MAS n.m.r. Comparison with synthetic polymers allowed evaluation of the relative molecular mobility of individual functional groups in coal samples. Some possible applications of the method in coal characterization for conversion processes are suggested.


📜 SIMILAR VOLUMES


Characterization of some coals and coal
✍ Hans Rosenberger; Gerhard Scheler; Eberhard Künstner 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 710 KB

High resolution 'H n.m.r. studies combining the BR-24 multiple-pulse method after BURUM and RHIM with fast magic-angle sample spinning (MAS), and high resolution solid-state i3C n.m.r. measurements with cross polarization (CP) and MAS have been used for investigating: a number of coals of different