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2. 发明公开

EP2937449A1 GAS DIFFUSION ELECTRODE AND PREPARATION METHOD THEREOF 有权
标题翻译： GASDIFFUSIONSELEKTRODE UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2937449A1
公开(公告)日：2015-10-28
申请号：EP12891307.6
申请日：2012-12-24
申请人： Beijing University Of Chemical Technology , Wang, Feng , Cao, Yinliang , Liu, Jingjun , Li, Zhilin
发明人： WANG, Feng , CAO, Yinliang , LIU, Jingjun , LI, Zhilin
IPC分类号： C25B11/08 , C25B11/03
CPC分类号： C25B11/12 , C25B1/46 , C25B11/035
摘要： Provided are a gas diffusion electrode and a preparation method thereof. The gas diffusion electrode comprises a current collector 1, a gas diffusion layer 2, a gas catalysis layer 3 coated on the gas diffusion layer, and a liquid guide layer 4 located on the gas catalysis layer. The gas diffusion layer comprises highly-graphitized carbon black and polytetrafluoroethylene, and the gas catalysis layer comprises a catalyst, acidified highly-graphitized carbon black and polytetrafluoroethylene; the highly-graphitized carbon black has a peak intensity ratio I D /I G between 0.3 and 1.0 in the Raman spectrum, and the degrees of graphitization in the gas diffusion layer and the gas catalysis layer may be the same or different. The gas diffusion electrode has good corrosion resistance and excellent and stable electrochemical performance in alkali solutions, thus it is suitable for electrolytic reactions in the chlor-alkali industry.
摘要翻译：提供一种气体扩散电极及其制备方法。气体扩散电极包括集电体1，气体扩散层2，涂覆在气体扩散层上的气体催化层3和位于气体催化层上的液体引导层4。气体扩散层包括高度石墨化的炭黑和聚四氟乙烯，气体催化层包括催化剂，酸化高度石墨化的炭黑和聚四氟乙烯; 高度石墨化的炭黑在拉曼光谱中的峰值强度比I D / I G在0.3〜1.0之间，气体扩散层和气体催化层中的石墨化程度可以相同或不同。气体扩散电极在碱溶液中具有良好的耐腐蚀性和优异的电化学性能，因此适用于氯碱工业的电解反应。

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