Metal surface structure

W. W. Mullins, Metal Surfaces Structure, Energetics and Kinetics. Metals Park, OH Am. Soc. Metals, 1963, Ch. 2. 

Section I reviews the new concepts and applications of nanotechnology for catalysis. Chapter 1 provides an overview on how nanotechnology impacts catalyst preparation with more control of active sites, phases, and environment of actives sites. The values of catalysis in advancing development of nanotechnology where catalysts are used to facilitate the production of carbon nanotubes, and catalytic reactions to provide the driving force for motions in nano-machines are also reviewed. Chapter 2 investigates the role of oxide support materials in modifying the electronic stmcture at the surface of a metal, and discusses how metal surface structure and properties influence the reactivity at molecular level. Chapter 3 describes a nanomotor driven by catalysis of chemical reactions. 

Laplace (Marquis), P. S. (1805) Traite de Mecanique Celeste, fourth volume, first section (theorie de Taction capillaire) of the supplement to Book 10 (sur divers points relatifs au systeme du monde), published by Chez Courier, Paris Marmur, A. (1996) Langmuir, 12, 5704 Marmur, A. (1997) 7. Colloid and Interface Science, 186, 462 McNutt, J. E. and Andes, G. M. (1959)7. Chem. Phys., 30,1300 Merlin, V. (1992) Ph.D. Thesis, INP Grenoble, France Mullins, W. W. (1957)7. Appl. Phys., 28, 33 Mullins, W. W. (1960) Trans. Met. Soc. AIME, 218, 354 Mullins, W. W. (1963) Metal Surfaces Structure, Energetics and Kinetics, ASM... 

Further experiments are necessary to study tip-induced local electrochemical reactions on semiconductor surfaces in order to form defined metallic surface structures for nanoelectronic applications. 

Somorjai GA (1996) The flexible surface new techniques for molecular level studies of time dependent changes in metal surface structure and adsorbate structure during catalytic reactions. J Mol Catal A Chem 107 39... 

Gjostein, N.A. "Metal Surfaces Structure, Energetics and Kinetics" American Society of Metals, Ohio 1963, p.99... 

TABLE 2.3a. Clean Metal Surface Structures (Unreconstructed)"... 

The obtained patterned polymer surfaces can also be replicated by metal thermal evaporation to produce nanostructured metallic films with holes or asperities of controlled size, as illustrated in Fig. 11.10. After deposition of a sufficiently thick metal layer, the polymer layer can be cleaved or dissolved away. This procedure allows an efficient and precise control of the metallic surface structure, with possible applications in materials science and photonics. The roughness of polydimethylsiloxane (PDMS) surfaces can be tuned by this technique if the PDMS is treated while cross-linking, which may be of interest for microfluidic applications. We have also observed that substrates of poly(methyl methacrylate) (PMMA), PS in the form of colloidal spheres and bulk, and semiciystalline films of polyethylene (PE) are prrMie to be structured by this technique, evidencing the versatility and potential for its widespread use. It may find applications in many different scientific and technological fields like nanoUthography, microfluidics, or flexible electronics. 

A. Ihs, Ph.D. Thesis, Organic Molecules on Metal Surfaces Structural Studies Using Infrared and X-ray Photoelectron Spectroscopy, Linkoping University, Linkoping, 1993. 

The quality of the coating (e.g. crystal size, porosity, smoothness, thickness, adhesion to base metal) is influenced mainly by bath composition, pH and temperature, although initial metal surface structure, cleaning and pre-treatment can also be important. In addition to accelerators, other additives may be included in bath formulations to control crystal nucleation, wetting of the metal surface and the metal ion concentration. 

The dissociation of water was examined over a range of different close-packed transition-metal surface structures in order to establish periodic trends. The results shown in Fig. 6.5 indicate that it becomes easier to activate water over metals that lie to the left of the periodic table which have more vacancies in the d-band. 

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