With nonconducting substrates, streaming potential in sufficiently broad (vs Debye screening length) capillaries is well known to be a linear function of applied pressure (and coordinate along the capillary). This study for the first time explores streaming potential with ideally polarizable electron-conducting substrates and shows it to be a nonlinear function of both coordinate and applied pressure. Experimental manifestations can be primarily expected for streaming potentials arising along thin porous electron-conducting films experiencing solvent evaporation from the film side surface. Model predictions are in good qualitative agreement with literature experimental data.

中文翻译：

---

具有理想极化电子传导基板的流电势

众所周知，对于非导电基板，足够宽（与德拜筛选长度相比）毛细管中的流动电位是施加压力的线性函数（并沿毛细管坐标）。这项研究首次探索了理想极化电子传导基板的流动势，并表明它是坐标和施加压力的非线性函数。实验表现主要可以预期为沿着薄的多孔电子传导薄膜产生的流动电势，该薄膜经历溶剂从薄膜侧表面蒸发。模型预测与文献实验数据具有良好的定性一致性。