用电毛细曲线、微分电容曲线、Ｓｔｕａｒｔ模型和自洽场分子轨道法（ＣＮＤＯ／２）研究对甲苯磺酰胺和１．４－丁炔二醇在汞电极上的共吸附特性。此共吸附本质上是一种物理吸附。在其最大的吸附电位附近，二者分别以侧卧与平卧方式吸附于汞表面，并在共吸附层中表现出静电斥力作用。当两者的浓度相等时，１．４－丁炔二醇的吸附占优势。The coadsorption characteristics of para-toluene sulfamide and 1,4-butynediol atmercury electrode have been studied by means of electrocapillary curve,differential capacity curve,Stuart model and the SCFMO method(CNDO/2).The coadsorption is a physical adsorption occuringnaturally. Lateral and flat orientations in the two adsorbates close to their maximum adsorptionpotential were considered respectively.Unlike attractive interactions of their own,there was arepulsive interaction at their coadsorption layer.A preferred adsorption of 1,4-butynediol occurredWhen they were at the same volume concentration.作者联系地址：湖南大学化学化工系Author's Address: Depart. Chem.Chem.Eng.Hunan Univ.,Changsha 41008
