Multinuclear Solid-state Nuclear Magnetic Resonance of Coal

Multinuclear solid-state nuclear magnetic resonance (NMR) techniques are useful for structural investigations of insoluble and amorphous natural products, have been gaining importance in coal chemistry. In addition to iron ore, is essential as steel raw material, but the physical properties remained unclear. Valuable information on coal, such cluster size, chemical distribution various functional groups, molecular structure, potentially obtained by multinuclear NMR. This minireview intended introduce discuss NMR techniques, conventionally applied characterizations. Some fundamentals briefly explained. Representative applications including carbon, nitrogen, oxygen, shortly described with their background histories, and, zero-field sulfur proposed future application. will be interest those who try use