Download or read book Hydrothermal Synthesis and Characterization of Novel Vanadium Oxides and Their Application as Cathodes in Lithium Secondary Batteries written by Thomas G. Chirayil and published by . This book was released on 1998 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Novel Manganese and Vanadium Oxides as Cathodes for Lithium Rechargeable Batteries written by Rongji Chen and published by . This book was released on 1998 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Temperature Synthesis and Characterization of Novel Transition Metal Vanadium Oxides and Manganese Oxides as Cathodes for Lithium Batteries written by Fan Zhang and published by . This book was released on 1999 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrothermal Synthesis and Characterization of Vanadyl Phosphate Based Cathode Materials for Lithium Ion Batteries written by Youngmin Chung and published by . This book was released on 2016 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Nano scale Vanadium Oxides Vanadium Phosphates as Cathodes for Lithium Batteries written by Chunmei Ban and published by ProQuest. This book was released on 2008 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrothermal Synthesis and Characterization of Vanadium and Tungsten Oxide Containing Organic inoganic Hynrid Material written by Banu Önen and published by . This book was released on 2011 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrothermal synthesis of transition metal oxide containing organic-inorganic hybrid materials has attracted great attention recently. Two novel organic-inorganic hybrid materials (4,4ʼ-bipy)3[HPW12O39] and [Cu(4,4ʼ-bipy)4][HPW12O40] were hydrothermally synthesized as green and purple crystals respectively, from the reaction of Na6[H2W12O40], CuCl2.2H2O, 4,4ʼ- bipyridine and H3PO4 in a 23 ml autoclave at 170°C for 72 hours. The compound (4,4ʼ-bipy)3[HPW12O39] crystallizes in the space group P21/n of the monoclinic system with four formula units in a cell with dimensions a = 13.503(3) Å, b = 26.726(5) Å, c =15.169(3) Å and V = 5397.3(19) Å3. [Cu(4,4ʼ-bipy)4][HPW12O40] crystallizes in the space group Pbcn of the tetragonal system with eight formula units in a cell of dimensions a = 20.236(4) Å, b = 25.635(5) Å, c = 20.236(4) Å; V = 10497(4) Å3 . Both of the compounds are Keggin polyoxometalate structures. (4,4ʼ-bipy)3[HPW12O39] contains free 4,4ʼ-bipy groups among the clusters while in [Cu(4,4ʼ-bipy)4][HPW12O40] 4,4ʼ-bipy ligands are coordinated to Cu2+ ions. A novel compound (H2NC4H8NH2)[(VO)2(PO4)2] was synthesized hydrothermally from the reaction of NaVO3, V2O5, ethylenediamine and H3PO4 at 170 C for 72 hours. The compound crystallizes in the space group P-1 of the trigonal system with five formula units in a cell of dimensions a= 6.3345(13) Å, b= 6.3353(13) Å, c= 15.940(3) Å, V=639.6(2) Å3. (H2NC4H8NH2)[(VO)2(PO4)2] displays a layered structure with protonated piperazine groups between layers. In addition to the novel compounds, several known compounds were synthesized as well. Blue crystals of (VO)(H2PO4)2 were obtained hydrothermally from the reaction of NaVO3, ethylenediamine and H3PO4 at 170C for 72 hours (C5NH6)4.5(H3O)1.5[P2W18O62] , a known compound also, was synthesized from the reaction of Na2WO4 .2H2O, CuCl2.2H2O, pyridine and H3PO4 at 170C for 72 hours.

Download or read book Hydrothermal Synthesis and Characterization of Transition Metal Oxides written by Aytaç Şahin and published by . This book was released on 2004 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrothermal method has proven to be an excellent method for the synthesis of novel metal oxides and vanadates. This research pertains to the synthesis of novel lead chlorovanadate compound and of a known alkali metal trivanadate compound, KV3O8 by hydrothermal method This method has been used to synthesize many inorganic oxide compounds Hydrothermal synthesis is the use of aqueous solvents under high temperature and high pressure to dissolve and recrystallize materials. Compounds with interesting structure and physical properties are often obtained from this technique that is known as one of the low-temperature synthesis techniques for solid state compounds. There are many studies that have been done on oxides in the Pb-V-O systems There are also many vanadium oxides containing Pb, V, O elements in Pb-V-O system such as Pb1.32V8.35O16.7, PbV6O11, PbV2O6, Pb2V3O8.5, and .-PbxV2O5 bronzes (x = 0.3). In an attempt to synthesize vanadium oxides at low temperature, we were able to obtain needle shaped yellow crystals of PbVO3Cl. In the nature, there is a kombatite mineral, Pb14(VO4)2O9Cl4, with the same composition of elements. A new lead chlorovanadate, PbVO3Cl, was obtained from the reaction of NaVO3 and PbCl2 in aqueous solution of B(OH)3. The compound was prepared in an autoclave that was filled with aqueous solution of B(OH)3 and heated at 170oC for 3 days. The compound crystallizes in the space group Pnma of the orthorhombic system with formula units in a cell of dimensions a = 10.022(2)

Download or read book Synthesis and Characterization of Novel Fluoride and Oxide Cathodes for Rechargeable Batteries written by Nancy Hao-Jan Twu and published by . This book was released on 2015 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developing new cathode materials is key to improving the energy density of rechargeable batteries and enabling new applications of energy storage. In this thesis, two families of materials were explored as candidate cathode materials: the dirutile and rutile polymorphs of LiMnF4, and layered lithium-excess . . . Dirutile LiMnF4 was identified from high-throughput computation as a promising conversion cathode. The dirutile polymorph was synthesized through a new low temperature route, and the rutile polymorph was discovered upon mechanical milling. With simple synthesis and electrode preparation methods, both dirutile and rutile polymorphs of LiMnF4 showed electrochemical activity. Electron diffraction confirmed both polymorphs to convert upon lithiation along different reaction paths. As with other fluorides, specific capacity was strongly linked with processing conditions. The layered lithium-excess . . . compounds were designed from recent understanding of diffusion channels in lithium-excess materials. Increasing lithium content was found to improve both discharge capacity and capacity retention. Structural studies revealed a complex nanostructure pattern of Li-Sb and Ni-Sb ordering where the interface between these domains formed the correct local configuration for good lithium mobility. The

Download or read book Hydrothermal Synthesis and Structural Characterization of Intercalated Vanadium Oxides written by Megan L. Roppolo and published by . This book was released on 2010 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Novel Cathodes and Electrolytes for Lithium ion Batteries written by Chang Woo Lee and published by . This book was released on 2003 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Novel Vanadium Oxide Compounds Using Surfactant Templates written by Arthur Dobley and published by . This book was released on 2001 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Temperature Synthesis and Characterization of Organically Templated Novel Vanadium Oxides written by Samuel T. Lutta and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1998 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Novel Micro and Nanostructured Vanadium Molybdenum and Iron Oxides written by Markus Niederberger (Chemiker) and published by . This book was released on 2000 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Vanadium Oxide Based Nanostructured Materials and Their Application for Catalytic Oxidative Dehydration of Propane written by Sangita Deb and published by . This book was released on 2008 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Vanadium Oxide Nanomaterials written by Tyler M. Fears and published by . This book was released on 2015 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This dissertation focuses on the synthesis and characterization of vanadium oxide nanomaterials and neutron-transparent Li-ion battery electrolytes. Vanadium oxide gels were synthesized via the epoxide-assisted gelation of VOCl3 using epichlorohydrin in ethanol. This represents the first epoxide-assisted gelation developed for vanadium oxide gels and serves as a potential economical replacement for the fabrication of vanadium oxide gels via the hydrolysis of vanadium alkoxides. Though epoxide-assisted gelation has been demonstrated for a number of transition metal oxides, the gelation mechanism observed here for VOCl3 appears to be unique. While investigating the electrochemical and structural properties of lithium vanadates, it became desirable to perform in situ neutron diffraction with electrochemical cycling. The inability to perform these experiments prompted the development of a series of perfluorocarboxylate esters which could potentially serve as neutron-transparent electrolyte solvents and help enable in situ neutron scattering characterizations. Electrochemical studies were carried out on Si anodes, and the solid-electrolyte-interphase was studied both ex situ and in situ. Results indicate that these electrolyte solvents improve neutron scattering data when used in place of standard deuterated carbonates and provide insight into fluorinated components proposed for next-generation electrolytes"--Abstract, page iv.