Author: Cuihong TaoPublisher:
ISBN:
Category :
Languages : en
Pages : 224
Book Description
Hydrothermal Synthesis and Characterization of Three Cobalt Phosphate Compounds
Author: Cuihong TaoHydrothermal Synthesis and Structural Characterization of Open-framework Metal Phosphates Templated with Organic Diamines
Author: Özlem EcePublisher:
ISBN:
Category : Chemical structure
Languages : en
Pages : 142
Book Description
In recent years, hydrothermal synthesis and structural characterization of open-framework metal phosphates templated with organic diamines have attracted the attention of scientists because they represent the interaction between organic and inorganic chemistry and can be applied in lots of branches of chemistry with their different characteristic properties. In this study, a novel open-framework polyoxometal phosphate compound (4,4'-bpyH2)2(4,4'-bpyH)[PCoW11O39].H2O was synthesized with hydrothermal method as red crystals. The compound crystallizes in the space group P2(1)/n of the monoclinic system with four formula units in a cell. The crystal is a Keggin polyoxometalate structure and contains free 4,4'-bipyridine groups and water molecule between the clusters. In addition to this novel compound, three known compounds were synthesized. Co(4,4'-bpy)2(VO2)2(HPO4)2 red crystals were synthesized hydrothermally and the compound crystallizes in the space group C2/c of the monoclinic system with four formula units in a cell. The crystal consists of [(VO2)(HPO4)]∞ helical chains and [Co(4,4'-bpy)2]2+ frameworks. Also, NaCo3(PO4)(HPO4)2 pink crystals were obtained with using hydrothermal synthesis. The compound crystallizes in the space group C2/c of the monoclinic system with four formula units in a cell. In the structure, CoO6 chains connect to the PO4 and HPO4 groups. Lastly, (enH2)3[CoW4P4O28] blue crystals were synthesized with hydrothermal method and crystallizes in the space group I4(1)/a of the tetragonal system with four formula units in a cell. The crystal consists of a [Co3W4P4O28]6- anion and three free ethylenediaminium (N2H10C2)2+ cations.
Hydrothermal Synthesis and Characterization of Transition Metal (Mn and V) Oxides Containing Phosphates
Author: Leyla EralPublisher:
ISBN:
Category : Metallic oxides
Languages : en
Pages : 190
Book Description
The synthesis of new manganese phosphate compound, Sr2MnP3O11, by hydrothermal reaction of Mn2O3, SrCO3 and H3PO4 in presence of water at 230 for 5 days is reported. The compound crystallizes in the space group P 21/c of the monoclinic system with three formula units in a cell of dimensions a=6.6410(13) b=6.8341(14) c=19.055(14) =99.22(3) V=853.6(3) The structure is composed of MnO6, PO4 and P2O7 groups and Sr cations. It has three dimensional structure including channels n which the Sr cations are placed.The pale pink single crystals of the Hureaulite mineral, Mn5(H2O)4[PO3(OH)]2[PO4]2, were synthesized hydrothermally via the reaction of SrCO3, MnCl2, H3PO4 and H2O at 180C for 3 days. The compound is in the crystal system of monoclinic with unitcell parameters a=17.600(4), b=9.1214(18), c=9.4786(19) and =96.52(3)and in the space group C2/c. The structure possesses a three-dimensional architecture containing channels and is made up of MnO6 and PO4, which are joined with others by sharing corners.All detailed structural information of the synthesized materials was done via commercial software programs SHELX and Crystal Structure.
SYNTHESIS AND CHARACTERIZATION OF ALUMINOBOROPHOSPHATE COMPOUNDS BY HYDROTHERMAL AND SOLID 6 STATE METHODS.
Author: Synthesis and Characterization of Binuclear Bridged Cobalt (III) Compounds
Author: Debra Anne GordonPublisher:
ISBN:
Category : Organocobalt compounds
Languages : en
Pages : 118
Book Description
Bibliography
Author: Pierre VillarsPublisher: Walter de Gruyter
ISBN: 3110276658
Category : Science
Languages : en
Pages : 1827
Book Description
By browsing about 10 000 000 scientific articles of over 200 major journals mainly in a 'cover to cover approach' some 200 000 publications were selected. The extracted data is part of the following fundamental material research fields: crystal structures (S), phase diagrams (also called constitution) (C) and the comprehensive field of intrinsic physical properties (P). This work has been done systematically starting with the literature going back to 1900. The above mentioned research field codes (S, C, P) as well as the chemical systems investigated in each publication were included in the present work. The aim of the Inorganic Substances Bibliography is to provide researchers with a comprehensive compilation of all up to now published scientific publications on inorganic systems in only three handy volumes.
Cobalt Compounds and Applications
Author: Yasemin YıldızPublisher: BoD – Books on Demand
ISBN: 1789845580
Category : Science
Languages : en
Pages : 122
Book Description
In addition to theoretical information, this book provides information on cobalt compounds and nanoparticles made at selected universities and research centers around the world.This book includes information on new cobalt approaches, nanostructured cobalt, and new catalysts in some reactions and biological systems and technologies.I deeply appreciate the authors? great contributions to this work.We hope that the book will shed light on new horizons for scientists, engineers, and students.
Hydrothermal Synthesis, Characterization and Growth of Metal Phosphates, Vanadates and Oxides
Author: Alfred Rey ForbesHydrothermal Synthesis and Characterization of New Open-framework Vanadium Phosphates
Author: Chih-Li Ken HsuPublisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 290
Book Description
Hydrothermal and Supercritical Water Processes
Author: Gerd BrunnerPublisher: Elsevier
ISBN: 0444594183
Category : Science
Languages : en
Pages : 683
Book Description
Hydrothermal and Supercritical Water Processes presents an overview on the properties and applications of water at elevated temperatures and pressures. It combines fundamentals with production process aspects. Water is an extraordinary substance. At elevated temperatures (and pressures) its properties change dramatically due to the modifications of the molecular structure of bulk water that varies from a stable three-dimensional network, formed by hydrogen bonds at low and moderate temperatures, to an assembly of separated polar water molecules at high and supercritical temperatures. With varying pressure and temperature, water is turned from a solvent for ionic species to a solvent for polar and non-polar substances. This variability and an enhanced reactivity of water have led to many practical applications and to even more research activities, related to such areas as energy transfer, extraction of functional molecules, unique chemical reactions, biomass conversion and fuel materials processing, destruction of dangerous compounds and recycling of useful ones, growth of monolithic crystals, and preparation of metallic nanoparticles. This book provides an introduction into the wide range of activities that are possible in aqueous mixtures. It is organized to facilitate understanding of the main features, outlines the main applications, and gives access to further information - Summarizes fundamental properties of water for engineering applications - Compares process and reactor designs - Evaluates processes from thermodynamic, economic, and social impact viewpoints