Copper-stretch-metal

OCSM CSM (copper-stretch-metal)-technology battery... 

Figure 2 yl possible mechanism for the attractive elastic interaction between sulfate ions on Cu(lll). (a) A schematic view of part of the Cu(lll) surface, showing the surface copper atoms (filled circles), (b) Upon adsorption of sulfate (large oval), the copper-copper distance is stretched, and copper atoms (filled circles) are displaced from their original positions (open circles). In total 8 surface atoms are shifted, (c) If two sulfates bind close to each other, then in total 14 surface atoms are shifted. If two sulfates bind far away from each other, then 16 surface atoms (twice the amount for the case displayed in (b)) will be shifted with respect to the second metal layer. Less reorganization of the surface atoms is therefore required when the sulfates bind close to each other. There is thus an effective attraction between the sulfates... 

The IR spectra of 15N-labelled complexes of A-p-tolylsalicylaldimines with zinc, copper and cobalt have yielded assignments of the metal-ligand stretching frequency and certain ligand vibrations.336 The v(M—N) values are metal-ion dependent in the order CoZn as expected from crystal field theory. Substituent-induced shifts are related to the residual polar effects of salicylaldimine substitution and to the inductive effects of N-aryl substitutents. 

In other studies Allara (27) used FTIR reflection to study the interaction of the oxide film of aluminum with acetic acid in which th aluminum acetate carbonyl stretch peak was found at 1590 cm- > in excellent agreement with the 1589 cm-1 peak determined by inelastic electron tunnelling spectroscopy (IETS), another modern technique for vibrational spectra at metal interfaces. The spectra of acetic acid adsorbed on copper oxide or indium,oxide were about the same. 

Because elaborate equipment is required to test metal ductility, we tested the ductility of the copper, silver, and iron wires in Activity 6.1 indirectly. Ductility is a physical property of metals that allows them to be drawn or stretched into thin threads without the metal breaking. Two of the most ductile metals are gold and silver. One gram of gold can be drawn into a thread two miles long 3 Threads can be used as lines in art. We know that lines in art are used to communicate what we see and feel. A thread, used as a line, can enhance a sculpture or even serve as the sole material for the sculpture. Because many pieces of jewelry are sculptures in miniature, threads of gold and silver are excellent materials for creating attractive pieces of jewelry. 

Copper is another transition metal that does not corrode easily, which makes it useful for water pipes. Copper is also an excellent conductor of heat, which explains why copper-bottomed cooking pans have been used for centuries. Today, most copper is used in electrical wiring, since it conducts electricity so well and can be stretched into thin shapes. Other transition metals that resist corrosion include platinum, osmium, and iridium. These last two elements are often used in metal pen nibs (the tip of a fountain ink pen) and the tip of spark plugs for cars. 

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