甲酸在Pt(100)单晶电极表面解离吸附过程的动力学

摘要

Dissociative adsorption of small organic molecules on electrocatalyst is so important molecular process of surcace, which includes stages of adsorption, chemical bond broken and new adsorbate formation. The dynamic study on this reaction will contribute to reveal the origin of interaction between electrode surface and reactants, and to develop and earlab theories of electrocatalysis. In the present work, in situ FTIR studies demonstrated that the dissociative produces of HCOOH on P(1) electrode are CO(ad) species. The oxidation of CO(ad) formed from HCOOH dissociative adsorption on Pt(100) electrode was need as probe reaction, and dynamic properties of ibis dissociative adsorption were investigated by a computerised experimental set-up developed recently in our group. From the analysis of current transtients the rate of dissociative adsorption of HCOOH on Pt(100) electrode has been evaluated under specified conditions.