Download or read book Role of Surface Area in the Kinetics of Oxidation of Graphite written by C. N. Spalaris and published by . This book was released on 1954 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Area Effects on the Oxidation Kinetics of Pyrolytic Graphite written by Milton Levy and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oxidation kinetics of pyrolytic graphite was studied as a function of temperature, air velocity, and surface area. The transition temperature between chemical and diffusion control may be significantly increased or decreased by decreasing or increasing the surface area of pyrolytic graphite. Kinetic theory calculations showed that the maximum reaction rate in the diffusion-controlled region is 50,000 times the observed rate for specimens having the smallest surface area. (Author).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1971 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas cooled Reactor Coolant Choice written by Oak Ridge National Laboratory and published by . This book was released on 1959 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TID written by and published by . This book was released on 19?? with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamental Issues in Control of Carbon Gasification Reactivity written by L. Lahaye and published by Springer Science & Business Media. This book was released on 1991-01-31 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last decade there has been a renewed interest in under standing from a fundamental point of view the gasification of carbon. Basi cally there are two major issues in controlling the reactivity of carbon: i) reduction of the gasification rate of carbon materials in hostile environment ii) increase of the gasification rate in order to utilize carbonaceous compounds more effectively. Although these two objectives look somewhat contradictory, they are part of the general topics of understanding gasification reactivity of carbon. Refractory applications of carbon in furnace linings, seals and vanes, as well as the use of carbon-carbon or carbon-ceramic composites in struc tures able to withstand corrosion at high temperature require a better understanding of the fundamentals involved in carbon-oxidizing gas (02' CO , H 0) reactions. Furthermore a great interest of aluminium producers 2 2 is 10 extending the lifetime of carbon electrodes in alumina electrolysis which primarily depends on reducing their consumption rates by air or carbon dioxide. Proper control of gasification reactions is also of prime importance in manufacturing carbonaceous adsorbents like granular activated carbon clothes of high adsorption characteristics. The balance between increase of porosity and decrease in mechanical strength during activation is critical for developing new porous types of carbon materials in particular for carbon clothes and this can only be achieved by a careful control of the gasification reaction.
Download or read book U S Government Research Reports written by and published by . This book was released on 1956 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Applied Materials Research written by Edwin Garnet Stanford and published by . This book was released on 1962 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Battelle Technical Review written by and published by . This book was released on 1956 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science and Technology a Selective Bibliography written by U.S. Atomic Energy Commission and published by . This book was released on 1958 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ORNL written by and published by . This book was released on 19?? with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graphene Oxide written by Ayrat M. Dimiev and published by John Wiley & Sons. This book was released on 2016-11-14 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to its unique properties, graphene oxide has become one of the most studied materials of the last decade and a great variety of applications have been reported in areas such as sensors, catalysis and biomedical applications. This comprehensive volume systematically describes the fundamental aspects and applications of graphene oxide. The book is designed as an introduction to the topic, so each chapter begins with a discussion on fundamental concepts, then proceeds to review and summarize recent advances in the field. Divided into two parts, the first part covers fundamental aspects of graphene oxide and includes chapters on formation and chemical structure, characterization methods, reduction methods, rheology and optical properties of graphene oxide solutions. Part Two covers numerous graphene oxide applications including field effect transistors, transparent conductive films, sensors, energy harvesting and storage, membranes, composite materials, catalysis and biomedical applications. In each case the differences and advantages of graphene oxide over its non-oxidised counterpart are discussed. The book concludes with a chapter on the challenges of industrial-scale graphene oxide production. Graphene Oxide: Fundamentals and Applications is a valuable reference for academic researchers, and industry scientists interested in graphene oxide, graphene and other carbon materials.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1981 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graphite hydrogen methane Kinetics Above 1600 K written by John D. Rogers and published by . This book was released on 1962 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Reacting Surface Density on the Overall Graphite Oxidation Rate written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphite oxidation in an air-ingress accident is presently a very important issue for the reactor safety of the very high temperature gas cooled-reactor (VHTR), the concept of the next generation nuclear plant (NGNP) because of its potential problems such as mechanical degradation of the supporting graphite in the lower plenum of the VHTR might lead to core collapse if the countermeasure is taken carefully. The oxidation process of graphite has known to be affected by various factors, including temperature, pressure, oxygen concentration, types of graphite, graphite shape and size, flow distribution, etc. However, our recent study reveals that the internal pore characteristics play very important roles in the overall graphite oxidation rate. One of the main issues regarding graphite oxidation is the potential core collapse problem that may occur following the degradation of graphite mechanical strength. In analyzing this phenomenon, it is very important to understand the relationship between the degree of oxidization and strength degradation. In addition, the change of oxidation rate by graphite oxidation degree characterization by burn-off (ratio of the oxidized graphite density to the original density) should be quantified because graphite strength degradation is followed by graphite density decrease, which highly affects oxidation rates and patterns. Because the density change is proportional to the internal pore surface area, they should be quantified in advance. In order to understand the above issues, the following experiments were performed: (1)Experiment on the fracture of the oxidized graphite and validation of the previous correlations, (2) Experiment on the change of oxidation rate using graphite density and data collection, (3) Measure the BET surface area of the graphite. The experiments were performed using H451 (Great Lakes Carbon Corporation) and IG-110 (Toyo Tanso Co., Ltd) graphite. The reason for the use of those graphite materials is because their chemical and mechanical characteristics are well identified by the previous investigations, and therefore it was convenient for us to access the published data, and to apply and validate our new methodologies. This paper presents preliminary results of compressive strength vs. burn-off and surface area density vs. burn-off, which can be used for the nuclear graphite selection for the NGNP.
Download or read book Redox Flow Batteries written by Huamin Zhang and published by CRC Press. This book was released on 2017-11-22 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flow batteries have received attention in large-scale energy storage due to their flexible design, high safety, high energy efficiency, and environmental friendliness. In recent years, they have been rapidly developed and tested in a variety of scales that prove their feasibility and advantages of use. As energy becomes a global focus, it is important to consider flow battery systems. This book offers a detailed introduction to the function of different kinds of redox flow batteries, including vanadium flow batteries, as well as the electrochemical processes for their development, materials and components, applications, and near future prospects. Redox Flow Batteries: Fundamentals and Applications will give readers a full understanding of flow batteries from fundamentals to commercial applications.
Download or read book Bulletin written by and published by . This book was released on 1962 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
