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The Preparation And Characterization Of High Surface Area Transition Metal Nitrides
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Book Synopsis The Preparation and Characterization of High Surface Area Transition Metal Nitrides by : Christopher Harold Jaggers
Download or read book The Preparation and Characterization of High Surface Area Transition Metal Nitrides written by Christopher Harold Jaggers and published by . This book was released on 1991 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Preparation and Characterization of High Surface Area Transition Metal Nitrides by : Christopher Harold Jaggers
Download or read book The Preparation and Characterization of High Surface Area Transition Metal Nitrides written by Christopher Harold Jaggers and published by . This book was released on 1988 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of Transition Metal Carbides and Nitrides by : S.T. Oyama
Download or read book The Chemistry of Transition Metal Carbides and Nitrides written by S.T. Oyama and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book arose from a symposium titled 'Transition Metal Carbides and Nitrides: Preparation, Properties, and Reactivity' organized by Jae Sung Lee, Masatoshi Nagai and myself. The symposium was part of the 1995 Congress of Pacific Rim Chemical Societies, held in Honolulu, Hawaii between December 17-22, 1995. The meeting was the first major conference to exclusively address the theme of metal carbides and nitrides, and brought together many of the major researchers in the field. Over 50 scientists and engineers reported their latest findings in five sessions of presentations and discussions. The book closely follows the topics covered in the conference: Theory of bonding Structure and composition Catalytic properties Physical properties New methods of preparation Spectroscopy and microscopy The book is unique in its coverage. It provides a general introduction to the properties and nature of the materials, but also covers their latest applications in a wide variety of fields. It should thus be of interest to both experts and nonexperts in the fields of material science, solid-state chemistry, physics, ceramics engineering, and catalysis. The first chapter gives an overview, and many of the chapters provide summaries of advanced topics. All contributions were peer-reviewed.
Book Synopsis Synthesis and Characterization of Transition Metal Nitrides and Carbides for Catalysis and Electrochemistry Application by : Sarah Metzke
Download or read book Synthesis and Characterization of Transition Metal Nitrides and Carbides for Catalysis and Electrochemistry Application written by Sarah Metzke and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It was the goal of this work to explore two different synthesis pathways using green chemistry. The first part of this thesis is focusing on the use of the urea-glass route towards single phase manganese nitride and manganese nitride/oxide nano-composites embedded in carbon, while the second part of the thesis is focusing on the use of the “saccharide route” (namely cellulose, sucrose, glucose and lignin) towards metal (Ni0), metal alloy (Pd0.9Ni0.1, Pd0.5Ni0.5, Fe0.5Ni0.5, Cu0.5Ni0.5 and W0.15Ni0.85) and ternary carbide (Mn0.75Fe2.25C) nanoparticles embedded in carbon. In the interest of battery application, MnN0.43 nanoparticles surrounded by a graphitic shell and embedded in carbon with a high surface area (79 m^2/g) were synthesized, following a previously set route.The comparison of the material characteristics before and after the discharge showed no remarkable difference in terms of composition and just slight differences in the morphological point of view, meaning the particles are stable but agglomerate. The graphitic shell ...
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transition Metal Carbides and Nitrides (MXenes) Handbook by : Chuanfang Zhang
Download or read book Transition Metal Carbides and Nitrides (MXenes) Handbook written by Chuanfang Zhang and published by John Wiley & Sons. This book was released on 2024-07-23 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the synthesis of high-quality MXenes In Transition Metal Carbides and Nitrides (MXenes) Handbook: Synthesis, Processing, Properties and Applications, a team of esteemed researchers provides an expert review encompassing the fundamentals of precursor selection, MXene synthesis, characterizations, properties, processing, and applications. You’ll find detailed discussions of the selection of MXene members for specific applications, as along with summaries of the physical and chemical properties of MXenes, including electrical, mechanical, optical, electromechanical, electrochemical, and electromagnetic properties. The authors delve into both successful and unsuccessful synthesis examples, offering detailed explanations of various failures to facilitates a comprehensive understanding of the reasons behind unsuccessful syntheses. Additionally, they provide detailed examinations on the characterizations of MXenes, empowering readers to develop a sophisticated understanding of how to achieve optimal quality, flake size, oxidation states, and more. You’ll also find: A thorough review of common applications of MXenes, including electrochemical applications, electromagnetic interference shielding, communications devices, and more Comprehensive explorations of solution and non-solution processing of MXenes Practical discussions of the synthesis of high-quality MXene powders, colloidal solutions and flakes, including information about MXene precursors Fulsome treatments of MXene precursor selection and their impact on MXene quality Tailored to meet the needs of graduate students, researchers, and scientists in the areas of materials science, inorganic chemistry, and physical chemistry, the Transition Metal Carbides and Nitrides (MXenes) Handbook will also benefit biochemists and professionals working in drug delivery.
Book Synopsis Theoretical and Experimental Studies on Early Transition Metal Nitrides for Thermoelectrics by : Mohammad Amin Gharavi
Download or read book Theoretical and Experimental Studies on Early Transition Metal Nitrides for Thermoelectrics written by Mohammad Amin Gharavi and published by Linköping University Electronic Press. This book was released on 2019-11-18 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermoelectricity transforms temperature gradients across thermoelectric material into an external voltage through a phenomenon known as the Seebeck effect. This property has resulted in niche applications such as solid-state cooling for electronic and optoelectronic devices which exclude the need for a coolant or any moving parts and long-lasting, maintenance-free radioisotope thermoelectric generators used for deep-space exploration. However, the high price and low efficiency of thermoelectric generators have prompted scientists to search for new materials and/or methods to improve the efficiency of the already existing ones. Thermoelectric efficiency is governed by the dimensionless figure of merit ????, which depends on the electrical conductivity, thermal conductivity and Seebeck coefficient value of the material and has rarely surpassed unity. In order to address these issues, research conducted on early transition metal nitrides spearheaded by cubic scandium nitride (ScN) thin films showed promising results with high power factors close to 3000 ?Wm?1K?2 at 500 °C. These results are the main motivation behind my thesis where the conducted research is separated into two different routes: • the synthesis and characterization of chromium nitride thin films and its alloys • the study of hypothetical ternary nitrides equivalent to scandium nitride Rock-salt cubic chromium nitride (CrN) deposited in the form of thin films by reactive magnetron sputtering was chosen for its large Seebeck coefficient of approximately -200 ?V/K and low thermal conductivity between 2 and 4 Wm?1K?1. The results show that CrN in single crystal form has a low electrical resistivity below 1 m?cm, a Seebeck coefficient value of -230 ?V/K and a power factor close to 5000 ?Wm?1K?2 at room temperature. These promising results could lead to CrN based thermoelectric modules which are cheaper and more stable compared to traditional thermoelectric material such as bismuth telluride (Bi2Te3) and lead telluride (PbTe). Although cubic CrN has been shown to be a promising material for research with a large power factor, the electrical resistivity limits applications in pure form as the ???? is estimated to be slightly below 0.5. To overcome this issue, I enhanced the thermoelectric power-factor of CrN by alloying it with a conductor, Rock-salt cubic vanadium nitride (VN). VN is a suitable choice as both materials share the same crystal structure and have almost equal lattice constants. Through deposition at 720 °C, where a small amount of VN (less than 5%) and Cr2N is introduced into the film, a reduced electrical resistivity averaged around 0.8 × 10-3 ?cm, Seebeck coefficient value of 270 ?V/K and a power-factor of 9.1 × 10-3 W/mK2 is measured at room temperature, which surpasses the thermoelectric properties of Bi2Te3. Hexagonal dichromium nitride (Cr2N) nano-inclusions increase the charge carrier concentration and act as phonon scattering sites. Single crystal Cr2N was also studied separately, as it shows interesting elastic-plastic mechanical properties and high resistance to oxidation at high temperatures for long periods of time. In the second part of this thesis, hypothetical ternary nitrides equivalent to ScN are investigated for their prospective thermoelectric properties. Scandium nitride has a relatively high thermal conductivity value (close to 10 Wm?1K?1), resulting in a low ????. A hypothetical ternary equivalent to ScN may have a similar electronic band structure and large power factor, but with a lower thermal conductivity value leading to better thermoelectric properties. Thus, the elements magnesium, titanium, zirconium, and hafnium were chosen for this purpose. DFT calculations were used to simulate TiMgN2, ZrMgN2 and HfMgN2. The results show the MeMgN2 stoichiometry to be stable, with two rivaling crystal structures: trigonal NaCrS2 and monoclinic LiUN2. The calculated electronic band structure of these compounds shows a direct band-gap for the monoclinic and an indirect band-gap for the trigonal crystal structures. These findings, coupled with predicted Seebeck coefficient values, encourages actual synthesis of such materials. DFT calculations were also used to study (Zr, Mg)N and (Hf, Mg)N alloys based on the SQS model. The transition temperature between the ordered monoclinic structure of ZrMgN2 and HfMgN2 and the disordered (Zr, Mg)N and (Hf, Mg)N alloys is calculated to be approximately 800 K and 1050 K respectively. Density of State (DoS) calculations show that similar to (Ti, Mg)N, (Zr, Mg)N and (Hf, Mg)N are also semiconducting. The thermoelectric properties of both compounds are also predicted, and that in the range of a moderate change in the Fermi level, high Seebeck coefficient values at room temperature can be achieved. Finally, in order to complete the mentioned study on hypothetical ternaries, I deposited (Ti, Mg)N thin film alloys by reactive magnetron sputtering. These films, which were deposited at 400 °C, are porous and are crystallized in the rocksalt cubic structure. As-deposited films show an electrical resistivity of 150 m?cm and a Seebeck coefficient of -25 ?V/K, which shows semiconducting properties. In order to initiate a phase transformation, these films when annealed at approximately 800 °C, where nano-inclusions of a titanium/magnesium oxynitride are formed in a LiTiO2-type superstructure are identified by XRD and TEM analysis.
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Transition Metal Nitride Materials by : Shalawn Kirkland Jackson
Download or read book Synthesis and Characterization of Transition Metal Nitride Materials written by Shalawn Kirkland Jackson and published by . This book was released on 2001 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of New Transition - Metal Nitrides by : Lev A. Sviridov
Download or read book Synthesis and Characterization of New Transition - Metal Nitrides written by Lev A. Sviridov and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Materials Science, Volume 2 by : Raghumani S. Ningthoujam
Download or read book Handbook of Materials Science, Volume 2 written by Raghumani S. Ningthoujam and published by Springer Nature. This book was released on with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Advisory Committee on Technology and Society Publisher :National Academies Press ISBN 13 :9780309037860 Total Pages :1298 pages Book Rating :4.0/5 (378 download)
Book Synopsis Cities and Their Vital Systems by : Advisory Committee on Technology and Society
Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1989 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Book Synopsis Preparation and Catalytic Hydrotreating Properties of High Surface Area Molybdenum Nitride by : Paul Clark
Download or read book Preparation and Catalytic Hydrotreating Properties of High Surface Area Molybdenum Nitride written by Paul Clark and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Materials in Catalysis by : Frank Bolz
Download or read book Advanced Materials in Catalysis written by Frank Bolz and published by Elsevier. This book was released on 2013-10-22 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Materials in Catalysis is a collection of materials that discusses various catalysts. The book presents the physical and chemical properties that indicate that a particular class of materials may be of catalytic interest. The text first covers bimetallic catalysts, and then proceeds to examining the catalytic properties of compounds such as graphite intercalation compounds; oxides with the scheelite structure; and synthetic layered silicates and aluminosilicate. The book also covers reduction catalysts, biological catalysts, and monolithic catalyst supports. The selection will be of great use to students and practitioners of chemistry, particularly those who are involved in research studies that investigate materials problems in catalysis.
Book Synopsis Hydroprocessing Catalysts And Processes: The Challenges For Biofuels Production by : Seddon Duncan
Download or read book Hydroprocessing Catalysts And Processes: The Challenges For Biofuels Production written by Seddon Duncan and published by World Scientific. This book was released on 2018-04-05 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for hydroprocessing catalysts has shown an increasing trend, because of their applications in refining of petroleum and biofuels, in order to comply with strict environmental regulations controlling emissions from transportation vehicles. Transport fuel is dominated by fossil fuels with carbon emission intensive production methods. If we are to move away from these sources, the alternative is to produce liquid fuels from agricultural stocks -- crops, crop waste, forestry waste or algae. Converting these feedstocks into high quality fuels is a considerable challenge. By describing the current status in processing agricultural feedstock into high quality liquid transport fuels, the authors set out the means to develop better chemistry and catalysis for the necessary conversion processes. This book offers an intriguing insight into the mechanisms and protocols involved in new hydroprocessing catalysts and processes, and covers the methods for upgrading these liquids to modern transport vehicles suitable for operation in modern gasoline and diesel engines. It provides an introduction to the mechanism of hydroprocessing reactions, application of different metals in hydroprocessing, the effect of catalyst supports, applications in refining new feedstock, renewable fuels standards, the management of spent hydroprocessing catalysts, and hydrogen production. Hydroprocessing Catalysts and Processes will prove useful for both researchers in academe and industry concerned with future fuels development and treatment to produce current and future liquid transport fuels. Contents: PrefaceHydroprocessing and the ChemistryStabilization of Bio-Oil to Enable Its Hydrotreating to Produce Bio-FuelsHydroprocessing Catalysts: Inexpensive Ni Based Non-Sulfided CatalystsCatalytic Upgrading of Pinewood Pyrolysis Bio-Oil Over Carbon-Encapsulated Bimetallic Co-Mo Carbides and Sulfides CatalystsHydroprocessing Catalysts for Algal BiofuelsEffects of Catalyst Support on HydroprocessingCommercial Hydroprocessing Processes for Bio-FeedstockRenewable Fuels and Fuel Regulations and StandardsSpent Hydroprocessing Catalysts ManagementHydrogen Production Readership: Graduate students in catalysis, refinery feedstock operations and planners, fuel technologists. Keywords: Hydrodesulfurization;Hydrodenitrogenation;Hydrodeoxygenation;Hydrogenation;Hydrocracking;Hydrodemetallization;Hydroprocessing Catalyst Model;Bio-Oil Stabilization;Ni Based Catalysts;Cobalt-Molybdenum Carbide Catalysts;Algal Biofuels;Support Effect;Commercial Hydroprocessing Processes for Bio-feedstock;Neste MY;BP;Ecofining;ENI;Honeywell-UOP;Bio-Synfining;Vegan;HydroFlex;Renewable Fuels Standards;Spent Hydroprocessing Catalyst;Hydrogen ProductionReview: Key Features: Most recent books related to hydroprocessing catalysts were published over 8 years agoNew challenges in biorefining and petroleum refining have required development of entirely new catalyst formulations and improvements of currently used catalystsIt is anticipated that the consumption of hydroprocessing catalysts will show a significant increase in the near future
Book Synopsis Atomically Precise Electrocatalysts for Electrochemical Energy Applications by : Anuj Kumar
Download or read book Atomically Precise Electrocatalysts for Electrochemical Energy Applications written by Anuj Kumar and published by Springer Nature. This book was released on with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Characterization of Nitrides and Other Non-oxide Materials by : Mark Stuart Bailey
Download or read book The Synthesis and Characterization of Nitrides and Other Non-oxide Materials written by Mark Stuart Bailey and published by . This book was released on 2005 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: