Microheterogeneity of solvent-swollen coal probed by proton spin diffusion

Koyo Norinaga, Jun Ichiro Hayashi, Tadatoshi Chiba, Masashi Iino

Research output: Contribution to journalArticlepeer-review


Phase separated structure of solvent swollen coal was characterized thorough its property of proton flip-flop spin diffusion. It is shown that the fashion of coal swelling is non-uniform on a segmental scale and a microscopic phase separation does take place on a scale from several to 20 nm even in good solvents like pyridine.

Original languageEnglish
Pages (from-to)591-594
Number of pages4
JournalACS Division of Fuel Chemistry, Preprints
Issue number3
Publication statusPublished - 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Energy


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