WorldCat Identities

Sawyer, Donald T.

Overview
Works: 42 works in 193 publications in 3 languages and 5,370 library holdings
Genres: Laboratory manuals  Conference papers and proceedings  Academic theses 
Roles: Author, Editor, htt, Other
Classifications: QD553, 541.37
Publication Timeline
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Most widely held works by Donald T Sawyer
Oxygen chemistry by Donald T Sawyer( )

15 editions published between 1991 and 1992 in English and Undetermined and held by 1,492 WorldCat member libraries worldwide

This book places oxygen on the center stage of chemistry in a manner that parallels the focus on carbon by 19th century chemists. One measure of the significance of oxygen chemistry is the greater diversity of oxygen-containing molecules than of carbon-containing molecules. One of the most important compounds is water, containing the properties of being a unique medium for biological chemistry and life, the source of all the dioxygen in the atmosphere, and the moderator of the earth's climate. Sawyer first introduces the biological origins of dioxygen and role of dioxygen in aerobic biology an
Experimental electrochemistry for chemists by Donald T Sawyer( Book )

16 editions published between 1974 and 1979 in English and Spanish and held by 736 WorldCat member libraries worldwide

Indicator electrodes; Electrochemical cells; Solvents and electrolytes; Instrumentation; Potentiometric measurements; Controlled potential methods; Controlled current methods; Electrochemical titrations
Electrochemistry for chemists by Donald T Sawyer( Book )

14 editions published in 1995 in English and held by 675 WorldCat member libraries worldwide

Emphasizing practical applications and real-world experimentation, this book gives chemists, biologists, and material scientists a solid understanding of the basic principles and modern methodology of electrochemistry
Experiments for instrumental methods; [a laboratory manual by Charles N Reilley( Book )

25 editions published between 1961 and 1979 in English and Undetermined and held by 472 WorldCat member libraries worldwide

Chemistry experiments for instrumental methods by Donald T Sawyer( Book )

16 editions published between 1984 and 2002 in English and Undetermined and held by 413 WorldCat member libraries worldwide

The only self-contained modern laboratory manual for advanced undergraduate courses in instrumental analysis. Consists of over 50 experiments demonstrating the theory and practice of electrochemical methods, methods based on electromagnetic radiation, and separation methods. Experiments are introduced with a review of the physical principles on which the experimental procedures are based
Quantitative analysis by Willis Conway Pierce( Book )

10 editions published between 1958 and 1966 in English and held by 346 WorldCat member libraries worldwide

Basic tools and methods of analysis; Theory and calculations of analytical chemistry; Titrimetric methods of analysis; Gravimetric analysis by precipitation; light and electrical methods of analysis
Oxygen complexes and oxygen activation by transition metals by Arthur E Martell( Book )

13 editions published in 1988 in English and held by 327 WorldCat member libraries worldwide

This monograph consists of manuscripts, summary statements, and poster abstracts submitted by invited speakers and poster contributors who participated in the symposium "Oxygen Complexes and Oxygen Activation by Transition Metals," held March 23-26, 1987, at Texas A & M University. This meeting was the fifth annual international symposium sponsored by the Texas A & M Industry-University Cooperative Chemistry Program (IUCCP). The coƯ chairmen of the conference were Professors Arthur E. Martell and Donald T. Sawyer of the Texas A & M University Chemistry Department. The program was developed by an academic-industrial steering committee consisting of the co-chairmen and members appointed by the sponsoring chemical companies Dr. James F. Bradzil, The Standard Oil Company, Ohio; Dr. Jerry R. Ebner, Monsanto Company; Dr. Craig Murchison, Dow Chemical Company; Dr. Donald C. Olsen, Shell Development Company; Dr. Tim R. Ryan, Celanese Chemical Company; and Dr. Ron Sanderson, Texaco Chemical Company. The subject of this conference reflects the intense interest that has developed in academic institutions and industry on several aspects of dioxygen chemistry. These include the formation of dioxygen complexes and their applications in facilitated transport and oxygen separation; homoƯ geneous and heterogeneous catalysis of oxidation; and oxygenation of organic substrates by molecular oxygen. The conference differs in two respects from several other symposia on dioxygen chemistry held during the past few years. First, there is extensive industrial participation, especially with respect to oxygen activation
The Activation of dioxygen and homogeneous catalytic oxidation by International Symposium on Dioxygen Activation and Homogeneous Catalytic Oxidation( Book )

10 editions published in 1993 in English and held by 213 WorldCat member libraries worldwide

This monograph consists of the proceedings of the Fifth International Symposium on the Activation of Dioxygen and Homogeneous Catalytic Oxidation, held in College Station, Texas, March 14-19, 1993. It contains an introductory chapter authored by Professors D.H.R. Barton and D.T. Sawyer, and twenty-nine chapters describing presentations by the plenary lecturers and invited speakers. One of the invited speakers, who could not submit a manuscript for reasons beyond his control, is represented by an abstract of his lecture. Also included are abstracts of forty-seven posters contributed by participants in the symposium. Readers who may wish to know more about the subjects presented in abstract form are invited to communicate directly with the authors of the abstracts. This is the fifth international symposium that has been held on this subject. The first was hosted by the CNRS, May 21-29, 1979, in Bendor, France (on the Island of Bandol). The second meeting was organized as a NATO workshop in Padova, Italy, June 24-27, 1984. This was followed by a meeting in Tsukuba, Japan, July 12-16, 1987. The fourth symposium was held at Balatonfured, Hungary, September 10-14, 1990. The sixth meeting is scheduled to take place in Delft, The Netherlands (late Spring, 1996); the organizer and host will be Professor R.A. Sheldon
Industrial environmental chemistry : waste minimization in industrial processes and remediation of hazardous waste by Donald T Sawyer( Book )

13 editions published between 1992 and 2013 in English and held by 193 WorldCat member libraries worldwide

Proceedings of the Texas A & M University, IUCCP Tenth Annual Symposium on Industrial Environmental Chemistry held in College Station, Texas, March 24-26, 1992
Oxygen chemistry by Donald T Sawyer( )

4 editions published between 1991 and 2020 in English and held by 32 WorldCat member libraries worldwide

Sawyer's book places oxygen on the centre stage of chemistry in a manner that parallels the focus on carbon by 19th century chemists. One measure of the significance of oxygen chemistry is the greater diversity of oxygen-containing molecules than that of carbon-containing molecules. One of the most important compounds is water, containing the properties of being a unique medium for biological chemistry and life, the source of all the dioxygen in the atmosphere, and the moderator of the earth's climate
Oxygen chemistry by Donald T Sawyer( Book )

2 editions published in 1991 in English and held by 18 WorldCat member libraries worldwide

This book places oxygen on the centre stage of chemistry in a manner that parallels the focus on carbon by 19th century chemists. One measure of the significance of oxygen chemistry is the greater diversity of oxygen-containing molecules than that of carbon-containing molecules. One of the most important compounds is water, containing the properties of being a unique medium for biological chemistry and life, the source of all the dioxygen in the atmosphere, and the moderator of the earth's climate. Sawyer first introduces the biological origins of dioxygen and role of dioxygen in aerobic biology and oxidative metabolism, and in separate chapters discusses the oxidation-reduction thermodynamics of oxygen species, and the nature of the bonding for oxygen in its compounds. Additional chapters focus on the reactivities of specific oxygen compounds
Electrochemical Studies of biological systems by Donald T Sawyer( )

2 editions published in 1977 in English and held by 10 WorldCat member libraries worldwide

Denki kagaku sokuteihō no kiso( Book )

2 editions published in 2003 in Japanese and held by 4 WorldCat member libraries worldwide

Water-assisted time-dependent compaction of quartz sand : an experimental investigation of the effects of clay and pore-fluid composition by Brian Patrick Elias( Book )

1 edition published in 1993 in English and held by 2 WorldCat member libraries worldwide

Experiments were conducted in nonreactive semi-static hydrothermal flow-through systems to determine the effects of clay grain coatings and changes in pore-fluid composition on mechanisms which operate during water-assisted time-dependent compaction of natural quartz sand. Pore-fluid chemistry, apparent dissolution rates, and compaction rates were monitored as functions of time and effective pressure in both clay and clay-free experiments at 150°C and 345 bar pore-fluid pressure (P[p]) and a macroscopic hydrostatic effective pressure (P[e]=P[c]-P[p]) of 345 bar. The starting solids were plain St Peter quartz sand (.18-.25 mm), and St. Peter sand coated with 5% or 10% (by mass) kaolinite or illite. Distilled water, silica-supersaturated solution, and mineral oil were used as pore fluids. Changes in steady-state fluid chemistry and dissolution, rates with P[e] were nearly identical for clay and clay-free experiments. Steady-state silica values increased from = 150 ppm at P[e] = 14 bar to = 165 ppm at P[e] = 345 bar in all experiments. Silica decreased after unloading but did not return to initial values. Apparent dissolution rates increased with P[e] and were partially reversible upon removal of P[e]. Partially reversible increases in steady-state silica concentration are caused by stress-enhanced solubility of quartz. Non-reversible increases in solubility and dissolution rates are caused by permanent deformation (microfracture, microgranulation) resulting in damaged surfaces and increased surface area. Time-dependent compaction was observed in all experiments at 150 °C and P[e] = 345 bar. Experiments conducted at 23 °C and P[e] = 345 bar compacted during loading but exhibited no time-dependent compaction. Experiments lasted from 3 to 12 months and had maximum volumetric strains of 8%. Volumetric strain rates for clay-free and 5% clay runs were identical at all strains (5.0 x 10^-9 sec^-1). Strain rates were faster in 10% clay experiments at volumetric strains less than 2.0%, but converged to 5.0 x 10^-9 sec^-1 at strains greater than 3%. Strain rates were nearly identical in experiments using distilled water, mineral oil, or supersaturated silica solution as the pore fluid
Electrochemistry of dissolved gases by Donald T Sawyer( Book )

2 editions published in 1965 in English and held by 2 WorldCat member libraries worldwide

The electrochemistry of various dissolved gases has been investigated as a function of the gas, solution pH, supporting electrolyte, electrode material, and the preconditioning of the electrode surfaces. These investigations have been conducted through the use of voltammetry, chronopotentiometry, and galvanostatic measurements. The gases investigated include oxygen, hydrogen, sulfur dioxide, hydrogen cyanide, carbon monoxide, and carbon dioxide. Electrodes have been constructed from a number of materials including platinum, gold, silver, nickel, palladium, iridium, rhodium, and mercury. As a result of the investigations kinetic parameters for several electrochemical reactions of dissolved gases have been measured. Also for several of the investigations mechanisms that are consistent with the experimental data have been postulated for the electrode processes involving dissolved gases. A numer of analytical procedures for various dissolved gases have resulted from the work under the subject contract and the under the subject contract and the understanding of the effect of electrode material on the rate of several gases has been improved.(Author)
Studies on the selective functionalization of saturated hydrocarbons by Gif-type systems by Warinthorn Chavasiri( Book )

1 edition published in 1993 in English and held by 2 WorldCat member libraries worldwide

The Gif-type reactions are promising Fe-based chemical models capable of oxidizing saturated hydrocarbons under mild conditions to mainly ketones with remarkably unusual selectivity (the secondary C-H bonds are preferentially oxidized over the tertiary or primary C-H bonds). Mechanistic studies of these reactions clearly reveal that there are two distinct intermediates along the pathway from saturated hydrocarbons to oxidized products. The second intermediate (Intermediate B) was identified and fully characterized by means of spectroscopic and chemical techniques as an alkyl hydroperoxide. Substantial evidence on the nature of the first intermediate (Intermediate A) particularly at 2° positions of saturated hydrocarbons suggests that it is not a carbon-centered radical. A C-Fe sigma bonded species is thus postulated as the first intermediate since this is the only rational candidate to explain all of the various observations attained up to date. The regio- and stereoselectivity of Gif-type reactions were evaluated. The results clearly revealed several unique characteristics of these systems. The regioselectivity of these oxidations was found to be different from several reported chemical models and reinforced the non-radical nature of the system. Evaluation of the stereoselectivity of the system revealed that these reactions were moderately stereoselective; the products observed were preferentially in the more stable equatorial configuration. Exploration of modified Gif-type reactions by variation of ligands, solvent systems and types of oxidants has revealed that the systems are greatly influenced by these variable factors. The utilization of tert-butyl hydroperoxide (TBHP) as a primary oxidant under Gif-type conditions has led to the development of a new and powerful system in Gif-type reactions; the GoAgg^IV system. Under these particular conditions, the superior amount of the desired products and the high selectivity for the formation of ketone compared with other Gif-type and related reactions has been clearly demonstrated. Moreover, the direct conversion of the unactivated C-H bonds of alkanes into C-Halogen, C-N, C-S and C-C bonds could be achieved employing this simple chemical model in the presence of inexpensive alkali metal salts
Platinum and Platinum alloy electrocatalysts for oxygen electrodes in Proton Exchange Membrane Fuel Cells : electrochemical and x-ray absorbtion spectroscopic investigation by Sanjeev Mukerjee( Book )

1 edition published in 1994 in English and held by 2 WorldCat member libraries worldwide

Research on proton exchange membrane fuel cells (PEMFCs) has gained momentum due to the prospects of attaining high energy and power densities, which are essential for transportation and space applications. One of the major problems of PEMFCs is the high overpotential of the cathodic oxygen reduction reaction (ORR) on the Platinum electrocatalyst. Platinum has been the most favored electrocatalyst for all low and medium temperature fuel cells. Two possible approaches for further improving the ORR activities in PEMFCs are as follows: (i) optimization of the structure of the electrode/electrolyte interface by sputter-deposition of a thin layer of Pt onto the front surface of the electrode; and (ii) use of Pt alloy electrocatalysts. The primary objective of this dissertation is to investigate the electrocatalysis of ORR using the mentioned approaches. The first investigation consisted of electrochemical characterization to determine the electrode kinetic parameters (Tafel slopes, exchange current densities, activation energies and reaction orders) on the fuel cell electrodes with a thin layer of Pt on the front surface. The second investigation was to determine the role of alloying element on the ORR electrocatalysis using electrochemical and in-situ X-ray absorption spectroscopic (XAS) techniques. Of special significance is that the two complementary parts of XAS, the X-ray absorption near edge structure (XANES) and the extended X-ray absorption fine structure (EXAFS) were used to provide information on the electronic and geometric parameters of the electrocatalysts in the in-situ electrochemical environment. The results demonstrated that sputter-deposition of Pt on the front surface of the electrode improved the ORR electrocatalysis, and is in all probability due to the non teflonized morphology of the electrode/electrolyte interface. Binary alloys of Pt with the first row transition elements (Cr, Mn, Fe, Co and Ni) show up to three fold improvement in performance for the electrocatalysis of ORR as compared to that on Pt/C electrocatalyst. Correlation of the electrocatalytic activities with electronic and geometric properties as obtained from in-situ XAS studies show volcano type relationship for both Pt and Pt alloy electrocatalysts. All the Pt alloys show higher Pt 5 d-orbital vacancies per atom as compared to the Pt/C electrocatalyst. The alloys also exhibited lattice contractions, in terms of the Pt-Pt bond distances, relative to the Pt/C electrocatalyst. There was no evidence of any redox type process involving the alloying element. The higher electrocatalysis by the Pt alloys as compared to Pt/C electrocatalyst could be accounted on the basis of the interplay of the electronic & geometric parameters and their combined effect on the chemisorption characteristics of oxygenated species
Formation, characterization, and reactivity of metal-oxygen adducts of copper, silver, and gold by Pipat Chooto( Book )

1 edition published in 1989 in English and held by 2 WorldCat member libraries worldwide

The coinage metals are oxidised to their respective cations (Cu+, Ag+, and Au+) at potentials that range from -0.20 V vs SCE for Cu to +1.30 V for Au. At glassy carbon hydroxide ion ( -OH) is oxidized to O (+0.35 V vs SCE) and then to O by an ECE mechanism. In contrast, with freshly polished metal eletrodes the oxidation of -OH to O and O is facilitated via formation of metal-s/oxygen-p covalent bonds to give a series of surface compounds. The shift to less positive oxidation potentials has been used to estimate the metal-oxygen covalent bond energies (about 40- 60 kcal). On the basis of the redox thermodynamics and the substrate reactions, the oxygen in these metal-oxygen surface compounds is essentially neutral (atomic O) and stabilized via covalent s-p bonds with neutral-charge metal atoms. Concurrent reduction of Cu+ plus O2 and of Ag+ plus O2, yields a series of surface compounds that parallel those that result from 'OH oxidation at the metal surfaces. The electron-transfer redox chemistry for the porphyrin and bipyridyl complexes of copper and silver [(TPP)Cu, (TPP)Ag, (Cl8TTP)Cu, (CI8TPP)Ag, (bpy)2Cu(ClO4), and (bpy)2Ag(ClO4), have been characterized by cyclic voltammetry and controlled potential electrolysis. ESR measurements confirm that the neutral porphyrin complexes have their spin density localized in the porphyrin ring with three metal-nitrogen covalent bonds; their metal centers do not interact with dioxygen (O2) or -OH. In contrast the ligand-centered reduction of [(bpy)2CuOCu[bpy)2] in the presence of dioxygen yields [(bpy)2CuOCu(bpy)2] that is oxidized Cu(bpy)2[^+2] at +1.80 V vs SCE
 
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Audience level: 0.38 (from 0.06 for Oxygen che ... to 0.93 for Electroche ...)

Oxygen chemistry Oxygen chemistry Oxygen chemistry
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Electrochemistry for chemistsChemistry experiments for instrumental methodsIndustrial environmental chemistry : waste minimization in industrial processes and remediation of hazardous wasteOxygen chemistryOxygen chemistry
Alternative Names
Sawyer, Donald Turner.

Sawyer, Donald Turner 1931-

소여, 도날드 T. 1931-

소여, 도날드 터너 1931-

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