通过研究超声波对电解氢过电位的影响,实验结果表明,分离出的氢在超声波作用下的阴极电位变化与正极材料无关,强度较小的超声波具有较弱的偏振效应,而强度较高的超声波具有较强的去极化效应。
by studying the effect of ultrasound on the overpotential of electrolytic hydrogen evolution, the experimental results show that the change in cathodic potential for separating hydrogen under the action of ultrasound is independent of the cathode material. ultrasound with lower intensity has weaker polarization effect, while ultrasound with higher intensity has strong depolarization effect.
在这种情况下,如果电流密度较小,潜在的突然变化将是显而易见的。 研究了超声对以EDTA为络合剂的硝酸银溶液阴极极化曲线的影响。 实验表明,同一反应体系的电位在超声场的作用下会突然跳跃,其原因有待进一步研究。
at this point, if the current density is small, the sudden change in potential will be very obvious. the experiment investigated the effect of ultrasound on the cathodic polarization curve of silver nitrate solution with edta as a complexing agent. the experiment found that under the action of ultrasound field, the potential of the same reaction system will undergo a sudden jump, and the reasons for this need to be further studied.
研究了超声波对铜、锌、铂等金属电极电极电位的影响,发现测得的金属电极电位是所用超声波的函数。 此外,电极电位的方向在超声波辐射下会发生变化,例如,在水电解的情况下,在光亮和干净的铂电极之间,特别是当阴极用超声波照射时,水电解所需的电极电位会显着降低。
studying the effect of ultrasound on the electrode potential of metal electrodes such as copper, zinc, and platinum, it was found that the measured electrode potentials of these metals are functions of the ultrasound used. in addition, under the radiation of ultrasound, the direction of electrode potential will also change. for example, during water electrolysis, the electrode potential required for water electrolysis will significantly decrease between bright and clean platinum electrodes, especially when the cathode is irradiated with ultrasound.
由于超声波的作用导致氢电极电位方向的变化,一般认为是由于超声波的辐射导致电极附近氢分子和氢离子的浓度梯度降低,或者由于电极表面的空化, 它去除吸附物质,连续清洁和激活电极表面,或对电极表面进行脱气,使气泡不会阻碍电流的通过。
the reason for the directional change in the electrode potential of a hydrogen electrode due to the action of ultrasound is generally believed to be due to the decrease in the concentration gradient of hydrogen molecules and ions near the electrode caused by ultrasound radiation, or due to the occurrence of pore corrosion on the electrode surface, which removes the adsorbed material, continuously cleans and activates the electrode surface, or degasses the electrode surface to prevent bubbles from hindering the passage of current.