Kinetics of the Reduction of Platinum(IV) by Tin(II) and Copper(I) in Aqueous Chloride Solutions PDF Download
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Languages : en
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Book Description
Rate constants for the Pt(IV) + Sn(II) and the Pt(IV) + Cu(I) redox reactions have been measured under various conditions using spectrophotometric and amperometric methods respectively. Rate equations are given which describe the data for the two reactions. The rate of reduction of Pt(IV) by Sn(II) is much faster than the rate of formation of the 1:1 complex between Pt(II) and Sn(II). The rate of reduction by Sn(II) varies linearly with increasing chloride concentration in nitrate and sulphate solutions. A possible explanation is offered for the higher rates in perchlorate solutions. The data for the Pt(IV) + Cu(I) system indicate that the reaction proceeds via an intermediate containing Pt(III), but there is no evidence for the formation of Pt(III) in the reduction of Pt(IV) by Sn(II). The mechanisms for both reactions are discussed in terms of complementary and non-complementary processes.
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Languages : en
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Book Description
Rate constants for the Pt(IV) + Sn(II) and the Pt(IV) + Cu(I) redox reactions have been measured under various conditions using spectrophotometric and amperometric methods respectively. Rate equations are given which describe the data for the two reactions. The rate of reduction of Pt(IV) by Sn(II) is much faster than the rate of formation of the 1:1 complex between Pt(II) and Sn(II). The rate of reduction by Sn(II) varies linearly with increasing chloride concentration in nitrate and sulphate solutions. A possible explanation is offered for the higher rates in perchlorate solutions. The data for the Pt(IV) + Cu(I) system indicate that the reaction proceeds via an intermediate containing Pt(III), but there is no evidence for the formation of Pt(III) in the reduction of Pt(IV) by Sn(II). The mechanisms for both reactions are discussed in terms of complementary and non-complementary processes.
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Category : Metallurgy
Languages : en
Pages : 236
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ISBN:
Category : Serials
Languages : en
Pages : 1026
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Author: Helena Wilhelmina Glen
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 184
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Book Description
This publication lists the 834 unrestricted reports, 449 papers, 41 patents, and 4 other technical publications that were issued as publications of the National Institute for Metallurgy (NIM) and the Council for Mineral Technology (Mintek) from 1966 (the year of NIM's inception) to 31st December, 1982. For ease of reference, these publications are also classified under research topics. Also included are details of the periodical issued by Mintek and a list of its current miscellaneous publications, which include the annual report, and brochures and leaflets of various kinds.
Author: Zoltan Nagy
Publisher: Springer Science & Business Media
ISBN: 1489905456
Category : Science
Languages : en
Pages : 485
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Book Description
Electrochemical synthesis of inorganic compounds is a relatively unknown field. The successful, large industrial processes, such as chlorine-caustic production, are well known, but the large number of other compounds that have been synthesized electrochemically are much less appreciated, even by electrochemists and inorganic chemists. The last comprehensive book on this subject was published in the 1930's and no modern review or summary of the whole field is in existence. But the field is in no way dormant, as attested by the large number of publications, undiminished throughout the years, describing new syntheses and improvements of old ones. Indeed, it can be expected that practical applications of electrochemical inor ganic syntheses will increase in the future as an increasing portion of our energy will be available in electrical form. Electrochemical processes have important advantages over chemical routes: often the selectivity of the reaction can be better controlled through the use of potential control at the electrode, and the creation of environmen tally harmful waste material can be avoided more easily since one is using the purest reagent - the electron. In addition to development of new synthetic routes, many old ones, which were found to be un economical in the past, are worth reexamining in light of the recent considerable advances in cell design principles, materials of construc tion, and electrode and separator materials, together with our im proved understanding of electrode reactions and electrocatalysis. It is in the hope of accelerating this process that this bibliography is published.
Author: Mirtat Bouroushian
Publisher: Springer Science & Business Media
ISBN: 3642039677
Category : Science
Languages : en
Pages : 365
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Book Description
The author provides a unified account of the electrochemical material science of metal chalcogenide (MCh) compounds and alloys with regard to their synthesis, processing and applications. Starting with the chemical fundamentals of the chalcogens and their major compounds, the initial part of the book includes a systematic description of the MCh solids on the basis of the Periodic Table in terms of their structures and key properties. This is followed by a general discussion on the electrochemistry of chalcogen species, and the principles underlying the electrochemical formation of inorganic compounds/alloys. The core of the book offers an insight into available experimental results and inferences regarding the electrochemical preparation and microstructural control of conventional and novel MCh structures. It also aims to survey their photoelectrochemistry, both from a material-oriented point of view and as connected to specific processes such as photocatalysis and solar energy conversion. Finally, the book illustrates the relevance of MCh materials to various applications of electrochemical interest such as (electro)catalysis in fuel cells, energy storage with intercalation electrodes, and ion sensing.
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Category : Dissertations, Academic
Languages : en
Pages : 1396
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Author: Armando J. L. Pombeiro
Publisher: John Wiley & Sons
ISBN: 111937880X
Category : Science
Languages : en
Pages : 680
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Book Description
Presents state-of-the-art information concerning the syntheses of valuable functionalized organic compounds from alkanes, with a focus on simple, mild, and green catalytic processes Alkane Functionalization offers a comprehensive review of the state-of-the-art of catalytic functionalization of alkanes under mild and green conditions. Written by a team of leading experts on the topic, the book examines the latest research developments in the synthesis of valuable functionalized organic compounds from alkanes. The authors describe the various modes of interaction of alkanes with metal centres and examine theoxidative alkane functionalization upon C-O bond formation. They address the many types of mechanisms, discuss typical catalytic systems and highlight the strategies inspired by biological catalytic systems. The book also describes alkane functionalization upon C-heteroatom bond formation as well as oxidative and non-oxidative approaches. In addition, the book explores non-transition metal catalysts and metal-free catalytic systems and presents selected types of functionalization of sp3 C-H bonds pertaining to substrates other than alkanes. This important resource: Presents a guide to the most recent advances concerning the syntheses of valuable functionalized organic compounds from alkanes Contains information from leading experts on the topic Offers information on the catalytic functionalization of alkanes that allows for improved simplicity and sustainability compared to current multi-stage industrial processes Explores the challenges inherent with the application of alkanes as starting materials for syntheses of added value functionalized organic compounds Written for academic researchers and industrial scientists working in the fields of coordination chemistry, organometallic chemistry, catalysis, organic synthesis and green chemistry, Alkane Functionalization is an important resource for accessing the most up-to-date information available in the field of catalytic functionalization of alkanes.
Author: Ulrich S. Schubert
Publisher: John Wiley & Sons
ISBN: 3527608427
Category : Science
Languages : en
Pages : 237
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Book Description
The first book to didactically illustrate this particular, prominent class of supramolecular building-blocks covers topics ranging from terpyridine syntheses, via their chemistry and properties, supramolecular structures, and multinuclear metal complexes, right up to functionalized polymers, 3D-architectures, and surfaces. Invaluable for students and lecturers in chemistry and biochemistry, materials scientists, as well as polymer, complex and physicochemists.
Author: P.J. Smith
Publisher: Springer Science & Business Media
ISBN: 9401149380
Category : Science
Languages : en
Pages : 592
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Book Description
In common with the editor of the first edition, my own personal involvement with tin chemistry began when I had the privilege of studying for a PhD degree under the supervision of Professor Alwyn G. Davies FRS at University College London (UCL) almost exactly 30 years ago. Then, following 21 years' service with the International Tin Research Institute, it was a great pleasure for me when the wheel turned full circle and, in 1994, Alwyn - now an Emeritus Professor - asked me to return to UCL as an Honorary Research Fellow in the Chemistry Department. One of my first tasks was when I received an invitation from Blackie A&P to edit the second edition of the Chemistry of Tin, which I was delighted to accept, since it enabled me to continued my life-long interest in tin chemistry and to maintain contact with my former friends and colleagues, many of whom have contributed to this book.
