Connection between macroscopic kinetic measurables and the degree of rate control

Jorgensen Mikkel; Gronbeck Henrik

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Connection between macroscopic kinetic measurables and the degree of rate control

机译：宏观动力学测量之间的联系和速率控制的程度

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Catalytic reactions are commonly characterized by measuring reaction orders and apparent activation energies. In the present work, these macroscopic measurables are related to the degree of rate control (chi(i)), which describes how the overall kinetics is influenced by the elementary reactions. The reaction orders are found to be chi(i)-weighted sums over the microscopic rates, derived with respect to pressure. Similarly, the apparent activation energy is shown to be a sum over the individual reaction-energy-barriers, weighted by chi(i). The results couple macroscopic kinetics to the microscopic scale, which can facilitate analysis of catalytic reaction kinetics.

机译：通常表现为催化反应测量反应订单和明显的激活的能量。可测量的相关率的程度控制(chi(我)),它描述了整体基本的动力学影响反应。气(i)三总结微观率,派生的压力。表观活化能是一笔个人reaction-energy-barriers,加权卡(i)。宏观动力学的微观层面,可以促进催化分析反应动力学。

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来源
《Catalysis science & technology》 |2017年第18期|4034-4040|共7页
作者
Jorgensen Mikkel; Gronbeck Henrik;
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作者单位

Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden;

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原文格式 PDF
正文语种英语
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关键词
Activation energy; reaction kinetics; CatalysissumsREACTIONrate controlKinetics;

机译：反应活化能;动力学;CatalysissumsREACTIONratecontrolKinetics;

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Connection between macroscopic kinetic measurables and the degree of rate control

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