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Surface chemistry research

Deposition by chemical reaction is a vast field tliat cannot be surveyed in tire limited space here. Two particular examples have been selected because tliey illustrate tire close relation between fundamental surface chemistry research... [Pg.2937]

This chapter is a look back at a parcel of surface chemistry research that grew out of an extraordinarily useful piece of technology, and it focuses mainly on the specific chemical interactions of deposition. The characterization of the physicochemical properties and processing variables of DS coatings, particularly with regard to their use in pigments, is the focus of Chapter 28. [Pg.515]

I. Banyai, Colloid and Surface Chemistry Research in the Chemistry Department of the University of Debrecen , Magyar Kemiai Folyoirat, Kemiai Kozlemenyek, 2011, 117, 113. [Pg.61]

Surface chemistry research is an interdisciplinary area on the frontiers of physical chemistry and nanoscience. Residual unbalanced forces exist on the surface of a solid. As a result of these residual forces, the surface of a sohd has a tendency to attract and retain molecules of other species with which it is brought into contact. [Pg.284]

From the experimental studies presented here, we conclude that it is possible to introduce the combinatorial technique in the Langmuir monolayer research. The application of lipid libraries instead of the traditional one or a few lipids for monolayer formation provides a unique approach to generating artificial proteins or other molecular receptors. The supramolecular species with proteinlike structures located on the surface of the monolayer can be readily used for biomimetic sensor development after the deposition of the film on a transducer such as an optic fiber. This combinatorial surface chemistry research may become a very important research area in Langmuir and Langmuir-Blodgett film smdies. [Pg.631]

This chapter concludes our discussion of applications of surface chemistry with the possible exception of some of the materials on heterogeneous catalysis in Chapter XVIII. The subjects touched on here are a continuation of Chapter IV on surface films on liquid substrates. There has been an explosion of research in this subject area, and, again, we are limited to providing just an overview of the more fundamental topics. [Pg.537]

In the Prefaces of both the 4th and the 5th editions the senior author commented on the tendency of wet and dry surface chemistry for differentiation into separate schools. This remains the case today also, academic research in wet surface chemistry continues to move from chemistry departments to engineering ones. On the other hand, new connections between the two areas have been forming apace with the current prominence of scanning microscopies. [Pg.802]

Fig. 15-5 Comparative adsorption of several metals onto amorphous iron oxyhydroxide systems containing 10 M Fej and 0.1 m NaNOs. (a) Effect of solution pH on sorption of uncomplexed metals, (b) Comparison of binding constants for formation of soluble Me-OH complexes and formation of surface Me-O-Si complexes i.e. sorption onto Si02 particles, (c) Effect of solution pH on sorption of oxyanionic metals. (Figures (a), (c) reprinted with permission from Manzione, M. A. and Merrill, D. T. (1989). "Trace Metal Removal by Iron Coprecipitation Field Evaluation," EPRI report GS-6438, Electric Power Research Institute, California. Figure (b) reprinted with permission from Balistrieri, L. et al. (1981). Scavenging residence times of trace metals and surface chemistry of sinking particles in the deep ocean, Deep-Sea Res. 28A 101-121, Pergamon Press.)... Fig. 15-5 Comparative adsorption of several metals onto amorphous iron oxyhydroxide systems containing 10 M Fej and 0.1 m NaNOs. (a) Effect of solution pH on sorption of uncomplexed metals, (b) Comparison of binding constants for formation of soluble Me-OH complexes and formation of surface Me-O-Si complexes i.e. sorption onto Si02 particles, (c) Effect of solution pH on sorption of oxyanionic metals. (Figures (a), (c) reprinted with permission from Manzione, M. A. and Merrill, D. T. (1989). "Trace Metal Removal by Iron Coprecipitation Field Evaluation," EPRI report GS-6438, Electric Power Research Institute, California. Figure (b) reprinted with permission from Balistrieri, L. et al. (1981). Scavenging residence times of trace metals and surface chemistry of sinking particles in the deep ocean, Deep-Sea Res. 28A 101-121, Pergamon Press.)...
Models of chemical reactions of trace pollutants in groundwater must be based on experimental analysis of the kinetics of possible pollutant interactions with earth materials, much the same as smog chamber studies considered atmospheric photochemistry. Fundamental research could determine the surface chemistry of soil components and processes such as adsorption and desorption, pore diffusion, and biodegradation of contaminants. Hydrodynamic pollutant transport models should be upgraded to take into account chemical reactions at surfaces. [Pg.140]

The development of new and improved catalysts requires advances in our understanding of how to make catalysts with specified properties the relationships between surface stracture, composition, and catalytic performance the dynamics of chemical reactions occurring at a catalyst surface the deployment of catalytic surface within supporting microstracture and the dynamics of transport to and from that surface. Research opportmuties for chemical engineers are evident in four areas catalyst synthesis, characterization of surface stracture, surface chemistry, and design. [Pg.170]

The Division of Chemical Sciences in OER supports basic chemical research. The primary involvement of chemical engineers with this program has been in the areas of catalysis and separations. Given the broad range of energy apphcations in which the structure and chemistry of interfaces is important, the committee recommends that the Division undertake an initiative in the chemical control of surfaces, interfaces, and microstractures. This would include support of work by both chemists and chemical engineers in the areas of surface chemistry, plasma chemistry, and colloid and interfacial chemistry. [Pg.206]

Adsorption phenomena from solutions onto sohd surfaces have been one of the important subjects in colloid and surface chemistry. Sophisticated application of adsorption has been demonstrated recently in the formation of self-assembhng monolayers and multilayers on various substrates [4,7], However, only a limited number of researchers have been devoted to the study of adsorption in binary hquid systems. The adsorption isotherm and colloidal stabihty measmement have been the main tools for these studies. The molecular level of characterization is needed to elucidate the phenomenon. We have employed the combination of smface forces measmement and Fomier transform infrared spectroscopy in attenuated total reflection (FTIR-ATR) to study the preferential (selective) adsorption of alcohol (methanol, ethanol, and propanol) onto glass surfaces from their binary mixtures with cyclohexane. Om studies have demonstrated the cluster formation of alcohol adsorbed on the surfaces and the long-range attraction associated with such adsorption. We may call these clusters macroclusters, because the thickness of the adsorbed alcohol layer is about 15 mn, which is quite large compared to the size of the alcohol. The following describes the results for the ethanol-cycohexane mixtures [10],... [Pg.3]

This review has been restricted mainly to clarification ofthe fundamentals and to presenting a coherent view ofthe actual state of research on voltaic cells, as well as their applications. Voltaic cells are, or may be, used in various branches of electrochemistry and surface chemistry, both in basic and applied research. They particularly enable interpretations of the potentials of various interphase and electrode boundaries, including those that are employed in galvanic and electroanalytical cells. [Pg.48]

Department of Surface Chemistry and Catalysis, Institute of Isotope, HAS, Budapest Laboratory for Nanostructured Metal Catalysts, Institute of Surface Chemistry and Catalysis, Chemical Research Center,... [Pg.77]

His research interests are in the application of surface-sensitive experimental methods in surface chemistry and catalysis and he has supervised over 80 PhD students, his co-author being one of them. He has received three National Awards, the Tilden Lectureship and Medal of the RSC, the Royal Society of Chemistry Award in Surface Chemistry and the John Yarwood Prize and Medal of the British Vacuum Society. He has also held appointments with the... [Pg.231]

Fabrication processing of these materials is highly complex, particularly for materials created to have interfaces in morphology or a microstructure [4—5], for example in co-fired multi-layer ceramics. In addition, there is both a scientific and a practical interest in studying the influence of a particular pore microstructure on the motional behavior of fluids imbibed into these materials [6-9]. This is due to the fact that the actual use of functionalized ceramics in industrial and biomedical applications often involves the movement of one or more fluids through the material. Research in this area is therefore bi-directional one must characterize both how the spatial microstructure (e.g., pore size, surface chemistry, surface area, connectivity) of the material evolves during processing, and how this microstructure affects the motional properties (e.g., molecular diffusion, adsorption coefficients, thermodynamic constants) of fluids contained within it. [Pg.304]

For most of his career, Langmuir was an industrial scientist, working for the General Electric Company at their research center in Schenectady, New York. His work there on surface chemistry led to many important scientific and technological discoveries. Among the many honors bestowed on Langmuir for this work, he was the recipient of the 1932 Nobel prize in chemistry. [Pg.263]

Jarvis, N.L. and Zisman, W.A. "Surface Activity of Fluorinated Organic Compounds at Organic-Liquid/Air Interfaces Part II. Surface Tension vs Concentration Curves, Adsorption Isotherms, and Force-Area Isotherms for Partially Fluorinated Carboxylic Esters," Naval Research Labs Report 5364, Surface Chemistry Branch, Chemistry Division, October 8, 1959. [Pg.675]

Bascom, W.D. and Singleterry, C.R. "The Adsoprtion of Oil Soluble Sulfonates at the Metal/Oil Interface," Naval Research Labs Report 5623, Surface Chemistry Branch, Chemistry Division, July 14, 1961. [Pg.676]

George M. Whitesides is Mallinckrodt Professor of Chemistry at Harvard University. He received his A.B. from Harvard College in 1960 and his Ph.D. from the California Institute of Technology in 1964. His research areas are Materials Science and Organic Chemistry, with specific focus in surface chemistry, materials science, self-assembly, capillary electrophoresis, organic solid state, molecular virology, directed ligand discovery, and protein chemistry. He is a member of the National Academy of Sciences, and he received the U.S. National Medal of Science in 1998. [Pg.200]

We would like to acknowledge the assistance of the Petroleum Research Fund in providing financial aid for the travel of several of the overseas academic participants, and also that of the many officers of the Division of Colloid and Surface Chemistry of the American Chemical Society who helped to make the symposium possible. [Pg.4]


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