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Nuclear magnetic relaxation study of protonic motion in hydronium beta″-aluminas

✍ Scribed by Yoshihiro Furukawa; Yutaka Nakabayashi; Shichio Kawai

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
260 KB
Volume
3-4
Category
Article
ISSN
0167-2738

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Nuclear magnetic proton relaxation studi
Nuclear magnetic proton relaxation studies of oxidized coals
✍ Tetsuro Yokono; Kunio Miyazawa; Yuzo Sanada; Harry Marsh 📂 Article 📅 1981 🏛 Elsevier Science 🌐 English ⚖ 651 KB

Coals of NCB rank 301 a (coking), 502 (caking) and 802 (very weakly caking) are oxidized in air at 373 K or 383 K for up to 42 days. Spin-lattice and spin-spin relaxation times, 7, and T2 respectively, of oxidized coals are measured using a Bruker SXP 4-l 00 and FT spectrometer. Free radical concent