The adsorption of tetrapentylammonium bromide, TPAB, was measured from aqueous solution on a series of non-graphitized and graphitized carbon blacks. The surface areas and porosities of the carbons were determined from nitrogen adsorption isotherms using the BET equation, and the t-plot and V-n plot
43. The adsorption of tetrapentylammonium bromide from aqueous solution on graphitized and non- graphitized carbon blacks
β Scribed by J.C Abram; M.C Bennett; A.C Morriss; S.C Simpson
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 110 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
ABSTRACTS 715 described. Such material has been used to advantage as a flat or curved monochromator for X-rays and is convenient for determining some of the fundamental properties of graphite.
38. The use of pyrolytic graphite in uncooled rocket nozzles
A. C. Parmee (Research Division, Rocket Propulsion Establishment, Aybbwy, Buckinghamshire, U.K.). Tests in rocket motors over a range of combustion conditions have shown pyrolytic graphite to be markedly superior to other forms of carbon and graphite. Two nozzle designs incorporating pyrolytic graphite in the form of a shell and disc were used to establish its limits of performance over a wide range of rocket motor conditions. The results of this work, techniques used in the manufacture and testing of the pyrolytic graphite nozzles are described. The results suggest there is a possible link between deposition conditions, which cause slight differences in structure and erosion resistance.
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It was found that the graphitic carbon strongly adsorbs chloroauric acid (HAuCI,) and sodium aurocyanide (NaAu[CN],) with the production of high heats of adsorption at low surface coverages. As the graphitized carbon possesses only a very small amount of polar surface sites, the adsorption is ascrib
## Abstract The heats of adsorption of nitrogen, argon, xenon, pentane, cyclohexane and benzene on a typical microporous carbon have been measured by gasβsolid chromatography. An overall comparison of the limiting heats of adsorption on active carbons and on graphitized carbon blacks shows a ratio
Adsorption of phenol and nonylphenol from aqueous solutions on microporous activated carbons has been studied. The phenol isotherm changes from L-shaped for surface oxygen group free carbon (I sample) to a two-stepped isotherm for oxidized carbon (IN sample, HNO(3) treated) Furthermore, the adsorbed