| SPE水电解池氧电极研究 |
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| 引用本文： | 任丽彬,徐志彬,李勇辉,易炜,张军,刘兴江.SPE水电解池氧电极研究[J].电源技术,2009,33(4). |
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| 作者姓名： | 任丽彬 徐志彬 李勇辉 易炜 张军 刘兴江 |
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| 作者单位： | 中国电子科技集团公司,第十八研究所,化学与物理电源技术重点实验室,天津,300381 |
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| 摘 要： | 氧电极是固体聚合物电解质(SPE)水电解池(WE)的控制电极,其中扩散层、催化剂的性能将直接影响电解池性能的高低。采用热分解、酸浸蚀、电沉积方法,对钛氧电极扩散层基体进行表面改性研究;探讨了氧电极催化剂对WE极化性能的影响;同时考察了温度、氧电极扩散层对WE性能的影响。结果表明:电沉积法处理钛氧电极扩散层可以使电阻降低,并且在大气中搁置电阻也不会增加;IrO2-RuO2氧电极复合催化剂具有最佳的催化活性;随着电解温度升高,电解电压下降;以电沉积法处理的钛网为氧电极扩散层时,WE性能得到明显提高,在常压、70℃条件下,电解电压为1.65V时,电流密度大于1A/cm2。
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| 关 键 词： | 固体聚合物电解质 水电解 氧电极 |
Study on oxygen electrode of SPE water electrolyzer |
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| REN Li-bin,XU Zhi-bin,LI Yong-hui,YI Wei,ZHANG Jun,LIU Xing-jiang.Study on oxygen electrode of SPE water electrolyzer[J].Chinese Journal of Power Sources,2009,33(4). |
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| Authors: | REN Li-bin XU Zhi-bin LI Yong-hui YI Wei ZHANG Jun LIU Xing-jiang |
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| Affiliation: | National Key Laboratory of Power Sources;Tianjin Institute of Power Sources;Tianjin 300381;China |
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| Abstract: | Oxygen electrode is a dominant electrode of SPE water electrolyzer (WE), of which diffusion layer and catalyst have direct influence on the performance of WE. The titanium oxygen electrode diffusion layers obtained by thermal decomposition, acid immersion, electro- deposition surface modification were evaluated. The effects of oxygen electrode catalyst, temperature, and oxygen electrode diffusion layer on the performance of WE were also discussed. The results showed that the resistance of Ti oxygen electrod... |
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| Keywords: | solid polymer electrolyte water electrolysis oxygen electrode |
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