【摘要】 金属催化剂电子因素与催化作用有着密切关系,利用TFDC相图可以对金属的催化作用进行研究。该文简要地介绍了金属的催化原理和TFDC相图的主要内涵,并叙述了金属催化电子理论的研究进展。催化剂中大多数是金属或及其合金,金属的催化作用是由于反应物首先吸附于金属催化剂表面,然后金属催化剂表面原子和反应物表面原子发生作用,这种相互作用改变了反应物表面原子之间的结合力,从而影响到反应物原子之间的相互作用,影响到反应的进程。TFDC相图认为,两组元相互接触,组元的原子半径要发生变化,以满足原子接触界面的电子密度连续。电子密度大的原子要膨胀半径,电子密度小的原子要收缩半径。因此,金属的催化作用本质上是原子之间的相互作用,这种原子之间的相互作用可以利用TFDC相图进行研究。更多还原

【Abstract】 The electronic factors of metal catalysts are closely related to the catalytic action, and the catalytic action of metals can be studied by using the phase diagram of TFDC. This paper briefly introduces the principle of metal catalysis, TFDC electronic theory and the main content of the TFDC phase diagram, and describes the research progress of the metal catalytic electron theory. Most of the catalysts are metal or alloy, The catalytic action of metal is due to the adsorption of reactants on the surface of the metal catalyst, then the metal catalyst surface atoms and reaction surface atoms interact, the interaction changes the binding force between atoms on the surface of the reactant, so as to affecting the interaction between the reactant atoms and the process of reaction. The TFDC phase diagram think the atomic radii of the elements should be changed to meet the continuous electron density of the atomic contact interface when the two elements are in contact with each other. Larger electron density of atoms to expand the radius and smaller electron density of atoms to shrink radius. Therefore, the catalytic action of metal is essentially the interaction between atoms, and the interaction between the atoms can be studied by using the TFDC phase diagram.更多还原