通過研究超聲波對電解氫過電位的影響,實驗結果表明,分離出的氫在超聲波作用下的陰極電位變化與正極材料無關,強度較小的超聲波具有較弱的偏振效應,而強度較高的超聲波具有較強的去極化效應。
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.
在這種情況下,如果電流密度較小,潛在的突然變化將是顯而易見的。 研究了超聲對以EDTA為絡合劑的硝酸銀溶液陰極極化曲線的影響。 實驗表明,同一反應體系的電位在超聲場的作用下會突然跳躍,其原因有待進一步研究。
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.
研究了超聲波對銅、鋅、鉑等金屬電極電極電位的影響,發現測得的金屬電極電位是所用超聲波的函式。 此外,電極電位的方向在超聲波輻射下會發生變化,例如,在水電解的情況下,在光亮和乾淨的鉑電極之間,特別是當陰極用超聲波照射時,水電解所需的電極電位會顯著降低。
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.
由於超聲波的作用導致氫電極電位方向的變化,一般認為是由於超聲波的輻射導致電極附近氫分子和氫離子的濃度梯度降低,或者由於電極表面的空化, 它去除吸附物質,連續清潔和啟用電極表面,或對電極表面進行脫氣,使氣泡不會阻礙電流的通過。
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.