热电化学电池电学性能测试设备研制与应用

Development and Application of Electrical Performance Testing Equipment for Thermo-electrochemical Cell

针对当前热电化学电池电学性能测试设备功能单一、样品适用范围窄等现状,研制了热电化学电池电学性能通用测试设备。以纳米ZrO_(2)为中继反应位点,采用该设备研究了ZrO_(2)浓度对铁氰根/亚铁氰根氧化还原电对(FeCN^(3-/4-))电解液基热电化学电池电学性能的影响规律。当ZrO_(2)浓度为1.5 mmol/L时,ZrO_(2)-FeCN^(3-/4-)电解液基热电化学电池具有-2.16 mV/K塞贝克系数和0.26 W/m^(2)最大输出功率密度,相比FeCN^(3-/4-)电解液基热电化学电池,分别提升了54%和333%。该热电化学电池电学性能测试设备操作简单、工作原理清晰,可有效支撑机械设计和电化学等课程内容的教学研究。

Considering the single function and narrow applicability of the electrical performance testing equipment used for thermo-electrochemical cell,a general testing equipment was designed and developed.The influence of nanoscale ZrO_(2)addition on the electrical performance of FeCN^(3-/4-)electrolyte based thermo-electrochemical cell was studied using this equipment.When the concentration of ZrO_(2)was 1.5 mmol/L,a high Seebeck coefficient of-2.16 mV/K and a maximum output power density of 0.26 W/m^(2)were obtained,which increase by 54%and 333%,respectively compared to FeCN^(3-/4-)electrolyte based thermoelectric chemical cells.This testing equipment is easy to operate and has a clear working principle,which can effectively support the teaching and research in mechanical design and electrochemistry.