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Laddas ned direkt. The purpose of the book is to integrate modern electrochemistry and semiconductor physics, thereby, providing a quantitative basis for understanding electrochemistry at metal and semiconductor electrodes. Electrons and ions are the principal particles which play the main role in electrochemistry. This text, therefore, emphasizes the energy level concepts of electrons and ions rather than the phenomenological thermodynamic and kinetic concepts on which most of the classical electrochemistry texts are based.
This rationalization of the phenomenological concepts in terms of the physics of semiconductors should enable readers to develop more atomistic and quantitative insights into processes that occur at electrodes.
Electrochemisty at Metal and Semiconductor Electrodes covers the structure of the electrical double layer and charge transfer reactions across the. Electrochemistry at Metal and Semiconductor Electrodes - Kindle edition by Norio Sato. Download it once and read it on your Kindle device, PC, phones or.
The book incorporates many traditional disciplines of science and engineering such as interfacial chemistry, biochemistry, enzyme chemistry, membrane chemistry, metallurgy, modification of solid interfaces, and materials' corrosion. The text is intended to serve as an introduction for the study of advanced electrochemistry at electrodes and is aimed towards graduates and senior undergraduates studying materials and interfacial chemistry or those beginning research work in the field of electrochemistry.
Passar bra ihop. Chemical Energy and Exergy Norio Sato This book is a beginners introduction to chemical thermodynamics for engineers. Ladda ned.
Bloggat om Electrochemistry at Metal and Semiconduct The band model stems directly from the picture of atomic energy levels. The theory and experiment show that when the atoms are brought close enough to each other, so that they form a solid, the valence electrons interact with each other in a such a way that their sharp atomic energy levels are broadened into wider regions called energy bands.
A solid is nothing else than a collection of interacting atoms.
According to the energy band theory, from each atomic level a huge number of different energy levels is generated due to interaction between atoms. The "new" levels are only slightly different from the original atomic levels. A schematic splitting of atomic levels by decreasing the distance between the atoms is presented in Figure 2. Figure 2.
From the point of view of solid state physics there are two atomic levels which are of considerable importance: the last occupied and the first unoccupied by electrons. These two atomic levels give rise to two different bands in the solid. The band resulting from the last occupied level is called the valence band E v and that resulting from the first unoccupied level is called the conductance band E c .
Thus, the valence band will be totally occupied by electrons, whereas the conduction band will be partially or totally free of electrons. The metallic, semiconductor or dielectric properties of a solid are determined by the fact how the two bands are filled by electrons. The electrons behave differently within the two bands.
A way to consider the behaviour of electrons is by considering their moving properties, usually referred to as conductivity. An electron can move in a band if it has partially filled or free states in its neighbourhood. This is much easily done in the conduction band, where a high number of unoccupied states is available.