Artykuły w czasopismach: „Surface chemistry”

1

Over, H. "SURFACE CHEMISTRY: Oxidation of Metal Surfaces". Science 297, nr 5589 (20.09.2002): 2003–5. http://dx.doi.org/10.1126/science.1077063.

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Haruyama, Shiro. "Surface chemistry." Bulletin of the Japan Institute of Metals 26, nr 7 (1987): 666–69. http://dx.doi.org/10.2320/materia1962.26.666.

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NAKAMAE, KATSUHIKO. "Surface Chemistry". Sen'i Gakkaishi 44, nr 2 (1988): P44—P50. http://dx.doi.org/10.2115/fiber.44.2_p44.

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YATES, JOHN T. "SURFACE CHEMISTRY". Chemical & Engineering News 70, nr 13 (30.03.1992): 22–35. http://dx.doi.org/10.1021/cen-v070n013.p022.

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Delhommelle, Jerome. "Surface Chemistry". Molecular Simulation 43, nr 5-6 (17.02.2017): 326. http://dx.doi.org/10.1080/08927022.2017.1283787.

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Thi, W. F., S. Hocuk, I. Kamp, P. Woitke, Ch Rab, S. Cazaux, P. Caselli i M. D’Angelo. "Warm dust surface chemistry in protoplanetary disks". Astronomy & Astrophysics 635 (marzec 2020): A16. http://dx.doi.org/10.1051/0004-6361/201731747.

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Context. The origin of the reservoirs of water on Earth is debated. The Earth’s crust may contain at least three times more water than the oceans. This crust water is found in the form of phyllosilicates, whose origin probably differs from that of the oceans. Aims. We test the possibility to form phyllosilicates in protoplanetary disks, which can be the building blocks of terrestrial planets. Methods. We developed an exploratory rate-based warm surface chemistry model where water from the gas-phase can chemisorb on dust grain surfaces and subsequently diffuse into the silicate cores. We applied the phyllosilicate formation to a zero-dimensional chemical model and to a 2D protoplanetary disk model (PRODIMO). The disk model includes in addition to the cold and warm surface chemistry continuum and line radiative transfer, photoprocesses (photodissociation, photoionisation, and photodesorption), gas-phase cold and warm chemistry including three-body reactions, and detailed thermal balance. Results. Despite the high energy barrier for water chemisorption on silicate grain surfaces and for diffusion into the core, the chemisorption sites at the surfaces can be occupied by a hydroxyl bond (–OH) at all gas and dust temperatures from 80 to 700 K for a gas density of 2 × 104 cm−3. The chemisorption sites in the silicate cores are occupied at temperatures between 250 and 700 K. At higher temperatures thermal desorption of chemisorbed water occurs. The occupation efficiency is only limited by the maximum water uptake of the silicate. The timescales for complete hydration are at most 105 yr for 1 mm radius grains at a gas density of 108 cm−3. Conclusions. Phyllosilicates can be formed on dust grains at the dust coagulation stage in protoplanetary disks within 1 Myr. It is however not clear whether the amount of phyllosilicate formed by warm surface chemistry is sufficient compared to that found in Solar System objects.

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Geagea, Elie, Frank Palmino i Frédéric Cherioux. "On-Surface Chemistry on Low-Reactive Surfaces". Chemistry 4, nr 3 (11.08.2022): 796–810. http://dx.doi.org/10.3390/chemistry4030057.

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Zero-dimensional (0D), mono-dimensional (1D), or two-dimensional (2D) nanostructures with well-defined properties fabricated directly on surfaces are of growing interest. The fabrication of covalently bound nanostructures on non-metallic surfaces is very promising in terms of applications, but the lack of surface assistance during their synthesis is still a challenge to achieving the fabrication of large-scale and defect-free nanostructures. We discuss the state-of-the-art approaches recently developed in order to provide covalently bounded nanoarchitectures on passivated metallic surfaces, semiconductors, and insulators.

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Strelko, V. V., i Yu I. Gorlov. "Influence of electronic states of nanographs in carbon microcrystallines on surface chemistry of activated charcoal varieties". Surface 13(28) (30.12.2021): 15–38. http://dx.doi.org/10.15407/surface.2021.13.015.

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In this paper, the nature of the chemical activity of pyrolyzed nanostructured carbon materials (PNCM), in particular active carbon (AC), in reactions of electron transfer considered from a single position, reflecting the priority role of paramagnetic centers and edge defunctionaled carbon atoms of carbon microcristallites (CMC) due to pyrolysis of precursors. Clusters in the form of polycyclic aromatic hydrocarbons with open (OES) and closed (CES) electronic shells containing terminal hydrogen atoms (or their vacancies) and different terminal functional groups depending on specific model reactions of radical recombination, combination, replacement and elimination were used to model of nanographenes (NG) and CM. Quantum-chemical calculations of molecular models of NG and CMC and heat effects of model reactions were performed in frames of the density functional theory (DFT) using extended valence-splitted basis 6-31G(d) with full geometry optimization of concrete molecules, ions, radicals and NG models. The energies of boundary orbitals were calculated by means of the restricted Hartry-Fock method for objects with closed (RHF) and open (ROHF) electronic shells. The total energies of small negative ions (HOO-, HO-) and anion-radical О2•‾) were given as the sum of calculated total energies of these compounds and their experimental electron affinities. The estimation of probability of considered chemical transformations was carried out on the base on the well-known Bell-Evans-Polyani principle about the inverse correlation of the thermal effects of reactions and its activation energies. It is shown that the energy gap ΔЕ (energy difference of boundary orbitals levels) in simulated nanographens should depend on a number of factors: the periphery structure of models, its size and shape, the number and nature of various structural defects, electronic states of NG. When considering possible chemical transformations on the AC surface, rectangular models of NG were used, for which the simple classification by type and number of edge structural elements of the carbon lattice was proposed. Quantum chemical calculations of molecular models of NG and CNC and the energy of model reactions in frames of DTF showed that the chemisorption of free radicals (3O2 and N•O), as recombination at free radical centers (FRC), should occur with significant heat effects. Such calculations give reason to believe that FRC play an important role in formation of the functional cover on the periphery of NG in CMC of studied materials. On the base of of cluster models of active carbon with OES new ideas about possible reactions mechanisms of radical-anion О2•‾ formation and decomposition of hydrogen peroxide on the surface of active carbon are offered. Explanation of increased activity of AC reduced by hydrogen in H2O2 decomposition is given. It is shown that these PNCM models, as first of all AC, allow to adequately describe their semiconductor nature and acid-base properties of such materials.

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9

WU, Kai. "Surface Physical Chemistry". Acta Physico-Chimica Sinica 34, nr 12 (2018): 1299–301. http://dx.doi.org/10.3866/pku.whxb201804192.

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10

Campbell, C. T. "Bimetallic Surface Chemistry". Annual Review of Physical Chemistry 41, nr 1 (październik 1990): 775–837. http://dx.doi.org/10.1146/annurev.pc.41.100190.004015.

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Madey, T. E., K. Pelhos, Q. Wu, R. Barnes, I. Ermanoski, W. Chen, J. J. Kolodziej i J. E. Rowe. "Nanoscale surface chemistry". Proceedings of the National Academy of Sciences 99, Supplement 2 (19.03.2002): 6503–8. http://dx.doi.org/10.1073/pnas.062536499.

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OLIS, ALEXANDER C. "Aquatic Surface Chemistry". Soil Science 146, nr 3 (wrzesień 1988): 212. http://dx.doi.org/10.1097/00010694-198809000-00018.

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McKee, C. S. "Oxygen surface chemistry". Applied Catalysis A: General 148, nr 2 (styczeń 1997): N8—N9. http://dx.doi.org/10.1016/s0926-860x(97)80018-x.

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McKee, C. S. "Oxygen surface chemistry". Applied Catalysis A: General 149, nr 2 (luty 1997): N2—N3. http://dx.doi.org/10.1016/s0926-860x(97)80030-0.

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McKee, C. S. "Oxygen surface chemistry". Applied Catalysis A: General 150, nr 1 (luty 1997): N2—N3. http://dx.doi.org/10.1016/s0926-860x(97)80034-8.

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Anpo, Masakazu, Hiromi Yamashita i Shu Guo Zhang. "Photoinduced surface chemistry". Current Opinion in Solid State and Materials Science 1, nr 5 (październik 1996): 630–35. http://dx.doi.org/10.1016/s1359-0286(96)80044-1.

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Sohn, Mary. "Aquatic surface chemistry". Organic Geochemistry 12, nr 3 (styczeń 1988): 295. http://dx.doi.org/10.1016/0146-6380(88)90267-7.

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18

Bergbreiter, David E. "Polyethylene surface chemistry". Progress in Polymer Science 19, nr 3 (styczeń 1994): 529–60. http://dx.doi.org/10.1016/0079-6700(94)90004-3.

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19

Feldman, Kirill, Michaela Fritz, Georg Hähner, Andreas Marti i Nicholas D. Spencer. "Surface forces, surface chemistry and tribology". Tribology International 31, nr 1-3 (styczeń 1998): 99–105. http://dx.doi.org/10.1016/s0301-679x(98)00012-7.

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20

Cuppen, H. M., A. Fredon, T. Lamberts, E. M. Penteado, M. Simons i C. Walsh. "Surface astrochemistry: a computational chemistry perspective". Proceedings of the International Astronomical Union 13, S332 (marzec 2017): 293–304. http://dx.doi.org/10.1017/s1743921317009929.

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AbstractMolecules in space are synthesized via a large variety of gas-phase reactions, and reactions on dust-grain surfaces, where the surface acts as a catalyst. Especially, saturated, hydrogen-rich molecules are formed through surface chemistry. Astrochemical models have developed over the decades to understand the molecular processes in the interstellar medium, taking into account grain surface chemistry. However, essential input information for gas-grain models, such as binding energies of molecules to the surface, have been derived experimentally only for a handful of species, leaving hundreds of species with highly uncertain estimates. Moreover, some fundamental processes are not well enough constrained to implement these into the models.The proceedings gives three examples how computational chemistry techniques can help answer fundamental questions regarding grain surface chemistry.

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21

Iqbal, Muzammil, Duy Khoe Dinh, Qasim Abbas, Muhammad Imran, Harse Sattar i Aqrab Ul Ahmad. "Controlled Surface Wettability by Plasma Polymer Surface Modification". Surfaces 2, nr 2 (9.05.2019): 349–71. http://dx.doi.org/10.3390/surfaces2020026.

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Inspired by nature, tunable wettability has attracted a lot of attention in both academia and industry. Various methods of polymer surface tailoring have been studied to control the changes in wetting behavior. Polymers with a precisely controlled wetting behavior in a specific environment are blessed with a wealth of opportunities and potential applications exploitable in biomaterial engineering. Controlled wetting behavior can be obtained by combining surface chemistry and morphology. Plasma assisted polymer surface modification technique has played a significant part to control surface chemistry and morphology, thus improving the surface wetting properties of polymers in many applications. This review focuses on plasma polymerization and investigations regarding surface chemistry, surface wettability and coating kinetics, as well as coating stability. We begin with a brief overview of plasma polymerization; this includes growth mechanisms of plasma polymerization and influence of plasma parameters. Next, surface wettability and theoretical background structures and chemistry of superhydrophobic and superhydrophilic surfaces are discussed. In this review, a summary is made of recent work on tunable wettability by tailoring surface chemistry with physical appearance (i.e. substrate texture). The formation of smart polymer coatings, which adjust their surface wettability according to outside environment, including, pH, light, electric field and temperature, is also discussed. Finally, the applications of tunable wettability and pH responsiveness of polymer coatings in real life are addressed. This review should be of interest to plasma surface science communality particularly focused controlled wettability of smart polymer surfaces.

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22

Pickens, Robin Monegue, i Charles H. Jagoe. "Relationships between precipitation and surface water chemistry in three Carolina Bays". Archiv für Hydrobiologie 137, nr 2 (14.08.1996): 187–209. http://dx.doi.org/10.1127/archiv-hydrobiol/137/1996/187.

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Eagle, Forrest W., Ricardo A. Rivera-Maldonado i Brandi M. Cossairt. "Surface Chemistry of Metal Phosphide Nanocrystals". Annual Review of Materials Research 51, nr 1 (26.07.2021): 541–64. http://dx.doi.org/10.1146/annurev-matsci-080819-011036.

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Semiconducting and metallic metal phosphide nanocrystals have gained increased attention in the materials science and engineering community due to their demonstrated and theoretical promise in both emissive and catalytic applications. Central to realizing the full potential of nanoscale metal phosphides is a thorough understanding of their surfaces and how surface chemistry impacts their function. In this review, we document what is known about the surface chemistry of metal phosphide nanocrystals, including both as synthesized and postsynthetically modified species, and draw a connection between surface chemistry and functional properties. This survey is intended to provide a comprehensive view of metal phosphide nanocrystal surface chemistry and how it differs across the families of phosphide materials. A clear distinction emerges between the semiconducting and metallic phosphides from both a synthetic and applied standpoint. We seek to expose key knowledge gaps and targets for further scientific and technological development.

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Gabániová, Mária. "Surface Chemistry-Based Surface Defects Situated on Steel Strips Edges". Defect and Diffusion Forum 405 (listopad 2020): 199–204. http://dx.doi.org/10.4028/www.scientific.net/ddf.405.199.

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Two thirds of all examined defect cases present on rolled steel strips appeared to be chemical in nature. They are characterized by a modification in surface chemistry. Chemistry-based defects on the steel strips can vary in composition and generally consist of reaction products with the steel substrate. First big category of widely occurring chemistry-based defects is corrosion or oxidation, second contamination with alien matter and third defect category is related to carbon sediments. A number of different surface chemistry-based defects are related to annealing process. Common problem, that occurs in communication is, that identical defects are often indicated by different names and identical names are given for different defects. In the present study an overview including possible causes of three types of the continuous chemistry-based defects situated on the steel strip edges, that appeared to be the same at first glance, is presented: carbon edge deposit, low reflectivity band and annealed border.

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Konsolakis, Michalis. "Surface Chemistry and Catalysis". Catalysts 6, nr 7 (15.07.2016): 102. http://dx.doi.org/10.3390/catal6070102.

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Vesel, Alenka. "Surface Chemistry of Polymers". Polymers 12, nr 11 (23.11.2020): 2757. http://dx.doi.org/10.3390/polym12112757.

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Copéret, Christophe. "Surface and Interfacial Chemistry". CHIMIA International Journal for Chemistry 66, nr 3 (28.03.2012): 125–29. http://dx.doi.org/10.2533/chimia.2012.125.

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Chikazawa, Masatoshi. "Surface chemistry of powders." Journal of Society of Cosmetic Chemists of Japan 27, nr 2 (1993): 103–18. http://dx.doi.org/10.5107/sccj.27.103.

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Somorjai, G. A., i Y. Li. "Impact of surface chemistry". Proceedings of the National Academy of Sciences 108, nr 3 (29.09.2010): 917–24. http://dx.doi.org/10.1073/pnas.1006669107.

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Thi, W. F., S. Hocuk, I. Kamp, P. Woitke, Ch Rab, S. Cazaux i P. Caselli. "Warm dust surface chemistry". Astronomy & Astrophysics 634 (luty 2020): A42. http://dx.doi.org/10.1051/0004-6361/201731746.

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Context. Molecular hydrogen (H2) is the main constituent of the gas in the planet-forming disks that surround many pre-main-sequence stars. H2 can be incorporated in the atmosphere of the nascent giant planets in disks. Deuterium hydride (HD) has been detected in a few disks and can be considered the most reliable tracer of H2, provided that its abundance throughout the disks with respect to H2 is well understood. Aims. We wish to form H2 and HD efficiently for the varied conditions encountered in protoplanetary disks: the densities vary from 104 to 1016 cm−3; the dust temperatures range from 5 to 1500 K, the gas temperatures go from 5 to a few 1000 Kelvin, and the ultraviolet radiation field can be 107 stronger than the standard interstellar field. Methods. We implemented a comprehensive model of H2 and HD formation on cold and warm grain surfaces and via hydrogenated polycyclic aromatic hydrocarbons in the physico-chemical code PROtoplanetary DIsk MOdel. The H2 and HD formation on dust grains can proceed via the Langmuir-Hinshelwood and Eley-Ridel mechanisms for physisorbed or chemisorbed H (D) atoms. H2 and HD also form by H (D) abstraction from hydrogenated neutral and ionised PAHs and via gas phase reactions. Results. H2 and HD are formed efficiently on dust grain surfaces from 10 to ~700 K. All the deuterium is converted into HD in UV shielded regions as soon as H2 is formed by gas-phase D abstraction reactions. The detailed model compares well with standard analytical prescriptions for H2 (HD) formation. At low temperature, H2 is formed from the encounter of two physisorbed atoms. HD molecules form on the grain surfaces and in the gas-phase. At temperatures greater than 20 K, the encounter between a weakly bound H- (or D-) atom or a gas-phase H (D) atom and a chemisorbed atom is the most efficient H2 formation route. H2 formation through hydrogenated PAHs alone is efficient above 80 K. However, the contribution of hydrogenated PAHs to the overall H2 and HD formation is relatively low if chemisorption on silicate is taken into account and if a small hydrogen abstraction cross-section is used. The H2 and HD warm grain surface network is a first step in the construction of a network of high-temperature surface reactions.

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Gellman, A. J., i N. D. Spencer. "Surface chemistry in tribology". Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 216, nr 6 (1.06.2002): 443–61. http://dx.doi.org/10.1243/135065002762355352.

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Surface chemistry is key to the understanding of tribological phenomena in the absence of a thick lubricant film. Progress in the development of surface analytical techniques has opened a new window into tribochemical phenomena and holds the promise of a better understanding of many critically important tribological processes. In this review the areas in which surface chemistry has played an important role in enhancing tribological understanding are surveyed. These include boundary lubrication, surface-additive interactions, the anomalous tribological behaviour of quasicrystals and the lubrication of hard disks.

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32

Lewis, Emily A., April D. Jewell, Georgios Kyriakou i E. Charles H. Sykes. "Rediscovering cobalt's surface chemistry". Physical Chemistry Chemical Physics 14, nr 20 (2012): 7215. http://dx.doi.org/10.1039/c2cp23691e.

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Vaynberg, Julia, i L. M. Ng. "Surface chemistry of fluoroethanols". Surface Science 577, nr 2-3 (marzec 2005): 175–87. http://dx.doi.org/10.1016/j.susc.2004.12.031.

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Stojilovic, N., E. T. Bender i R. D. Ramsier. "Surface chemistry of zirconium". Progress in Surface Science 78, nr 3-4 (styczeń 2005): 101–84. http://dx.doi.org/10.1016/j.progsurf.2005.07.001.

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Neergaard Waltenburg, Hanne, i John T. Yates. "Surface Chemistry of Silicon". Chemical Reviews 95, nr 5 (lipiec 1995): 1589–673. http://dx.doi.org/10.1021/cr00037a600.

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36

Chen, Carl W., i Luis E. Gomez. "Surface water chemistry. Comments". Environmental Science & Technology 23, nr 7 (lipiec 1989): 752–54. http://dx.doi.org/10.1021/es00065a002.

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Kulakova, I. I. "Surface chemistry of nanodiamonds". Physics of the Solid State 46, nr 4 (kwiecień 2004): 636–43. http://dx.doi.org/10.1134/1.1711440.

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Nebel, C. E. "CHEMISTRY: Surface-Conducting Diamond". Science 318, nr 5855 (30.11.2007): 1391–92. http://dx.doi.org/10.1126/science.1151314.

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Ogenko, V. M. "Surface Chemistry in Modern Nanotechnologies". Adsorption Science & Technology 14, nr 5 (październik 1996): 295–300. http://dx.doi.org/10.1177/026361749601400504.

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A review of the properties of fine oxide surfaces at the nano level is given based on the author's work. It includes a scheme related to the structure of pyrogenic silica and the changes induced by dehydroxylation as studied by quantum chemical and spectroscopic methods. The application of non-linear optical methods has appeared to be useful for the investigation of disperse solid structures. Quantitative measurements of intermolecular interaction have been obtained by light scattering. Alteration of the surface activity due to gas-phase electron–donor molecule action on chemisorbed complexes or functional groups on the surface is considered. It is also shown how the physicochemical properties of a solid surface can be changed as a result of chemical modification. The investigations discussed could lead in practice to the creation of new lightweight ceramic materials, adsorbents, catalyst supports, hollow-body microspherical fillers and medicinal preparations. Some of these are useful for nano electronics and instrument design as well as for the solution of some meteorological problems.

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Kim, Taeseung, i Francisco Zaera. "Surface Chemistry of Pentakis(dimethylamido)tantalum on Ta Surfaces". Journal of Physical Chemistry C 115, nr 16 (4.04.2011): 8240–47. http://dx.doi.org/10.1021/jp201564v.

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Dutta, Soham, i Andrew J. Gellman. "Enantiomer surface chemistry: conglomerate versus racemate formation on surfaces". Chemical Society Reviews 46, nr 24 (2017): 7787–839. http://dx.doi.org/10.1039/c7cs00555e.

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SUZUKI, Toshimitsu, i Yoshihisa WATANABE. "Surface chemistry of carbons. Oxidation reactions of carbon surfaces." Hyomen Kagaku 10, nr 9 (1989): 565–72. http://dx.doi.org/10.1380/jsssj.10.565.

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Savio, L., K. B. Bhavitha, G. Bracco, G. Luciano, D. Cavallo, G. Paolini, S. Passaglia i in. "Correlating hydrophobicity to surface chemistry of microstructured aluminium surfaces". Applied Surface Science 542 (marzec 2021): 148574. http://dx.doi.org/10.1016/j.apsusc.2020.148574.

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WITHY, B., M. HYLAND i B. JAMES. "PRETREATMENT EFFECTS ON THE SURFACE CHEMISTRY AND MORPHOLOGY OF ALUMINIUM". International Journal of Modern Physics B 20, nr 25n27 (30.10.2006): 3611–16. http://dx.doi.org/10.1142/s0217979206040076.

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Chemical pretreatments are often used to improve the adhesion of coatings to aluminium. XPS and AFM were used to study the effect of these pretreatments on the surface chemistry and morphology of Al 5005. Four pretreatments were investigated, an acetone degrease, boiling water immersion, and two sulphuric acid etches, FPL and P2. Degreasing had no affect on surface morphology and simply added to the adventitious carbon on the surface. Boiling water immersion produced a chemically stable pseudo-boehmitic surface that was quite porous. The acid etches produced porous pitted surfaces similar to each other but significantly different to the other surfaces. The surface chemistry of the acid etched surfaces was variable and dependant on atmospheric conditions on removal from etch due to the very active surface that the etch produced.

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Pytskii, Ivan S., Irina V. Minenkova, Elena S. Kuznetsova, Rinad Kh Zalavutdinov, Aleksei V. Uleanov i Aleksei K. Buryak. "Surface chemistry of structural materials subjected to corrosion". Pure and Applied Chemistry 92, nr 8 (25.09.2020): 1227–37. http://dx.doi.org/10.1515/pac-2019-1219.

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AbstractThe article describes a comprehensive mass spectrometric approach to the study of surfaces of structural materials. The combined use of thermal desorption mass spectrometry, gas and liquid chromatography, and laser desorption/ionization mass spectrometry (LDI) to provide information about the surface and surface layers of materials is proposed. The suggested method allows one to determine the thermodynamic characteristics of compounds and surface contaminants adsorbed on surfaces, as well as surface layers, to determine the composition of volatile and non-volatile contaminants on the surface, and to determine the nature of the distribution over the surface of these compounds. The method allows to obtain the most complete information about the surface condition and can be used to predict the life of structural materials.

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Bertani, R. "Surface organometallic chemistry: Molecular approaches to surface catalysis". Inorganica Chimica Acta 157, nr 1 (marzec 1989): 133. http://dx.doi.org/10.1016/s0020-1693(00)83435-0.

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Pringle, P. O. "Surface organometallic chemistry: Molecular approaches to surface catalysis". Journal of Electroanalytical Chemistry and Interfacial Electrochemistry 289, nr 1-2 (sierpień 1990): 299. http://dx.doi.org/10.1016/0022-0728(90)87226-a.

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Collins, Alan J., J. M. Basset i B. C. Gates. "Surface Organometallic Chemistry: Molecular Approaches to Surface Catalysis." Statistician 38, nr 2 (1989): 147. http://dx.doi.org/10.2307/2348331.

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KOISHI, MASUMI. "Surface and interface. Surface chemistry in dispersion system." NIPPON GOMU KYOKAISHI 60, nr 5 (1987): 240–45. http://dx.doi.org/10.2324/gomu.60.240.

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Chaloner, Penny A. "Surface Organometallic Chemistry: Molecular Approaches to Surface Catalysis". Journal of Organometallic Chemistry 368, nr 3 (czerwiec 1989): C46. http://dx.doi.org/10.1016/0022-328x(89)85419-1.

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