表面化学反应 meaning in English
surface chemical reaction
Examples
- The clouds form surfaces where chemical reactions can take place that produce ozone - destroying molecules
在这种云表面化学反应会产生一种破坏臭氧层的分子。 - The surface reaction of water atomized 304l austenitic stainless steel powder during sintering has been studied
摘要研究了水雾化奥氏体不锈钢粉末在致密时的表面化学反应。 - It was discovered that the reaction on particle and pore surface was fiercely influenced by sintering temperature , and reaction products and their morphology and distribution related to the mechanical properties of materials
研究发现颗粒表面和孔隙表面的化学反应受致密温度的强烈影响，材料的力学性能与表面化学反应产物及其形态和分布有关。 - Based on the analysis of gas - solid multiphase catalytic reaction , the chemical reaction model is established . when the reaction is controlled by the chemical dynamic , the reaction rate is introduced by consideration of the adsorption and desorption effects . when the reaction is controlled by mass transfer , the diffusion coefficient is established which can present the flow rate increases in small reynolds domain ; for the internal diffusion , the internal diffusion coefficient is derived , and then the internal diffusion is coupled with chemical reaction to represent the phenomenon that the diffusion and the chemical reaction occur cocurrently
本文在考虑催化转化器载体内发生的传热传质现象的基础上,建立了催化转化器的一维单孔道和三维多孔道传热传质模型;在分析载体内以气-固多相催化反应为特点的工作机理的基础上,建立了催化转化器的化学反应模型:当催化转化处于化学动力学控制区时,引入了考虑吸附、表面反应和脱附的表面化学反应速率公式,当催化转化处于质量输运控制区时,引入了决定外扩散能力的扩散系数公式和和决定内扩散速率的内扩散系数公式,并与化学反应速率相耦合,得出由扩散过程决定的化学反应速率公式。 - In this thesis , three systems , namely , perfect and defect sno _ 2 ( 110 ) surfaces , ti and ru - doped surfaces and the adsorptions of small molecules on above perfect surfaces have been studied in details by using the first - principles method with the combination of pseudopotential plane - wave and atomic basis sets . the structural stability , surface states and the surface chemistry of undoped and metal doped sno _ 2 ( 110 ) surfaces have been discussed , which can provide the theoretical rules to improve the surface properties of this special functional material
为了深入了解sno _ 2表面的电子结构本质及其化学反应性质,本论文采用赝势平面波和原子轨道基组相结合的第一性原理方法,详细考察了三种类型体系,即sno _ 2 ( 110 )完整和缺陷表面、 ti和ru掺杂表面、以及典型小分子在上述完整表面的吸附,揭示了sno _ 2 ( 110 )及其金属掺杂表面的构型稳定性、表面态及其对表面化学反应性的影响,为该类型表面功能材料的改性提供理论依据。