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On the mechanism for plasma hydrogenation of graphene

Description: This article discusses the mechanism for plasma hydrogenation of graphene.
Date: December 6, 2010
Creator: Jones, Jason D.; Hoffmann, William D.; Jesseph, Aaron V.; Morris, Christopher; Verbeck, Guido F. & Pérez, José M.
Item Type: Article
Partner: UNT College of Arts and Sciences

Bibliography of the Fischer-Tropsch Synthesis and Related Processes (In Two Parts): [Part] 1. Review and Compilation of the Literature on the Production of Synthetic Liquid Fuels and Chemicals by the Hydrogenation of Carbon Monoxide

Description: Report issued by the Bureau of Mines over the Fischer-Tropsch synthesis of liquid fuels. As stated in the introduction, "this review contains abstracts of the technical literature and patents dealing with the history, development, and commercial application of the Fischer-Tropsch synthesis and related processes for the hydrogenation of carbon monoxide and the production of synthetic fuels and chemicals" (p. v).
Date: 1954
Creator: Anderson, Hazel C.; Wiley, J. L. & Newell, A.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Bibliography of the Fischer-Tropsch Synthesis and Related Processes (In Two Parts): [Part] 2. Patents

Description: Report issued by the Bureau of Mines over the patents of the Fischer-Tropsch synthesis. As stated in the introduction, "this review contains abstracts of the technical literature and patents dealing with the history, development, and commercial applications of the Fischer-Tropsch synthesis" (p. iii).
Date: 1955
Creator: Anderson, Hazel C.; Wiley, J. L. & Newell, A.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Physical Chemistry of the Fischer-Tropsch Synthesis

Description: From Summary: "This paper summarizes the results of physicochemical studies of the Fischer-Tropsch synthesis (the catalytic hydrogenation of carbon monoxide) undertaken by the Federal Bureau of Mines as part of its program on improving processes for producing liquid fuels from coal."
Date: 1959
Creator: Anderson, R. B.; Shultz, J. F.; Hofer, L. J. E. & Storch, H. H.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Characterization of Tar Acids from Coal-Hydrogenation Oils

Description: From Introduction: "The purpose of this investigation was to separate and identify as many of the principal phenolic compounds produced by the mild hydrogenation of Pittsburgh-bed (Bruceton) coal as possible and to determine with the greatest possible accuracy the proportions in which they are present."
Date: 1950
Creator: Woolfolk, E. O.; Golumbic, C.; Friedel, R. A.; Orchin, Milton & Storch, H. H.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Hydrogenation of Coal in the Batch Autoclave

Description: From Introduction: "This bulletin presents results of laboratory experiments performed between 1944 and 1956, which have particularly sought to improve the conversion of coal to liquids in small batch-type high-pressure reactors (autoclaves)."
Date: unknown
Creator: Hawk, C. O. & Hiteshue, R. W.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Hydrogenation of Coal and Tar

Description: From Abstract: "This bulletin traces the development of high-pressure, coal and tar hydrogenation technology, based on intensive review of the pertinent literature. The bulletin was written as a part of the Bureau of Mines research program on synthetic liquid fuels. It covers the history and economics of the process; the chemical aspect of hydrogenation of coal, tar, and middle oil; the engineer aspect of converting coal and tar to liquid fuels, principally gasoline; and the equipment of the process."
Date: unknown
Creator: Wu, W. R. K. & Storch, H. H.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Modification of Graphene Properties: Electron Induced Reversible Hydrogenation, Oxidative Etching and Layer-by-layer Thinning

Description: In this dissertation, I present the mechanism of graphene hydrogenation via three different electron sources: scanning electron microscopy, e-beam irradiation and H2 and He plasma irradiation. in each case, hydrogenation occurs due to electron impact fragmentation of adsorbed water vapor from the sample preparation process. in the proposed model, secondary and backscattered electrons generated from incident electron interactions with the underlying silicon substrate are responsible for the dissociation of water vapor. Chemisorbed H species from the dissociation are responsible for converting graphene into hydrogenated graphene, graphane. These results may lead to higher quality graphane films having a larger band gap than currently reported. in addition, the dissertation presents a novel and scalable method of controllably removing single atomic planes from multi-layer graphene using electron irradiation from an intense He plasma under a positive sample bias. As the electronic properties or multi-layer graphene are highly dependent on the number of layers, n, reducing n in certain regions has many benefits. for example, a mask in conjunction with this thinning method could be used for device applications.
Date: May 2012
Creator: Jones, Jason David
Partner: UNT Libraries