1.本文釆用滴汞电极研究了聚氧乙烯型表面活性物質对酸性溶液中氢过电位的影响。結果表明这类活性物質能在很广的电位范围內均匀地提高氢过电位,但阻化效应比較小(△η≈50mv)。2.根据对极化曲线的分析,認为活性分子吸附层的阻化效应系由于表面反应的表现,使活化能增大,而氢析出过程反应机理并未改变。 1. In this paper preclude the use of mercury drop electrodes polyoxyethylene surfactant in acid solution of hydrogen overpotential. The results show that these active substances can uniformly increase the hydrogen overpotential in a wide range of potentials, but the resistance effect is relatively small (Δη≈50mv). According to the analysis of the polarization curve, it is considered that the resistance effect of the active molecular adsorbed layer increases the activation energy due to the surface reaction, while the reaction mechanism of hydrogen evolution does not change.