Nitric Acid Oxidation of Coals. I. Oxidation of Low Rank Brown Coal with Dilute Nitric Acid
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چکیده
منابع مشابه
Atomistic oxidation mechanism of a carbon nanotube in nitric acid.
Motivated by recent experiments, we investigate how NO3-SWNT interactions become energetically favorable with varying oxidation state of a single-walled carbon nanotube (SWNT) using first-principles calculations. Chemisorption becomes less endothermic with respect to physisorption when the SWNT oxidation state is elevated. Importantly, the dissociative incorporation of an oxygen atom into the S...
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It is little more than jifty years since the Jirst manufacture of nitric acid by the oxidation of ammonia over a platinum catalyst. Ostwald’s original industrial plant had an output of some 100 tons of acid a year; today the world capacity for nitric acid manufacture by this process is about ten million tons a year. This article traces the beginnings and early developments of the process until ...
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Oxidation of single-walled carbon nanotubes (SWNTs) with nitric acid increases their dispersability in water, methanol, and N,N-dimethylformamide. Two oxidation protocols, sonication in 8 M HNO3 at 40 °C and reflux in 2.6 M HNO3, have been examined using SWNTs produced by the CoMoCat, HiPco, and pulsed laser vaporization (PLV) methods. The dispersability of all types of nanotubes increased subs...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1965
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.68.3_527