专业电势(电位)转换工具

适用于电催化、电化学测试 | 全参比电极互转 | 25℃标准校准

输入参数
转换结果(同步显示全参比电极电位)
参比电极 转换后电位 计算说明
核心计算公式 (25℃):
1. 参比电极互转:E(目标) = E(输入) + E输入电极 vs SHE - E目标电极 vs SHE
2. RHE 可逆氢电极转换:ERHE = E(输入) + E输入电极 vs SHE + 0.0592 × pH
3. 单位换算:1 V = 1000 mV

⚠️ 重要说明:本工具基于25℃标准条件下的电极电位常数编写,仅供科研学习参考,实际实验请结合体系温度、电解液浓度、电极状态进行校准。

标准电位常数 (vs SHE, 25℃):

  • SHE / NHE:0.000 V
  • Ag/AgCl (0.1 M KCl):+0.288 V | Ag/AgCl (1.0 M KCl):+0.235 V | Ag/AgCl (Sat'd KCl):+0.197 V
  • Calomel (0.1 M KCl):+0.336 V | Calomel (1.0 M KCl):+0.280 V | Calomel (SCE, Sat'd KCl):+0.241 V
  • Hg/HgSO₄ (Sat'd K₂SO₄):+0.640 V
  • Hg/HgO (0.1 M NaOH):+0.165 V | Hg/HgO (1.0 M NaOH):+0.107 V
参考文献(电位数据与公式来源)
  1. Bard, A. J., Faulkner, L. R. Electrochemical Methods: Fundamentals and Applications, 2nd Edition. John Wiley & Sons, 2001.
  2. Bard, A. J., Parsons, R., & Jordan, J. (Eds.). Standard Potentials in Aqueous Solution. Marcel Dekker, New York, 1985.
  3. Meites, Louis. Handbook of Analytical Chemistry. McGraw-Hill Book Company, 1963.
  4. Kawashima, Kenta, et al. "Accurate Potential Conversion between Reference Electrodes in Aqueous Solutions: Practical Parameters for Electrochemical Measurements." ACS Energy Letters 8 (2023): 1893-1898.
  5. David J. G., and George J. Janz. Reference Electrodes: Theory and Practice. New York: Academic Press, 1961.
  6. Hills, G. J., and D. J. G. Ives. "The Hydrogen Electrode." Nature 163 (1949): 997-997.
  7. 李启隆. 电分析化学(第三版). 北京师范大学出版社, 2007.