为了实现高效、实际规模的H₂O₂电合成,催化材料和电化学反应器设计发挥着同样重要的作用。通过电沉积方式在碳布(Carbon Cloth,CC)上聚合导电聚合物聚3,4-乙烯二氧噻吩(PEDOT)用于原位合成过氧化氢(H₂O₂),利用扫描电子显微镜(SEM)、傅里叶变换红外光谱(FT-IR)对电极形貌结构进行表征。将电极制作为膜电极组件(MEA)并应用于固体聚合物电解质(SPE)电解池,探究其合成H₂O₂的性能。结果表明,PEDOT/CC具有良好的催化氧还原合成H₂O₂的性能,并且在SPE电解池中表现出更短的极板距离、更高的H₂O₂产量(1 152.38 mg/L)以及更优的电流效率(89%)。

To achieve efficient and practical scale electrosynthesis of H₂O₂,the designs of both catalytic material and electrochemical reactor play an equally important role.PEDOT (poly3,4-ethylene dioxythiophene),a conductive polymer,is polymerized on carbon cloth via electrodeposition method,and used in situ synthesis of hydrogen peroxide (H₂O₂).Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) are employed to characterize the morphology and structure of the electrode.The electrode is made into a membrane electrode assembly (MEA) that is applied to the solid polymer electrolyte (SPE) electrolytic cell to explore its performance in synthesizing H₂O₂.The results show that PEDOT/carbon cloth has good catalytic performance for oxygen reduction to synthesize H₂O₂,and exhibits shorter electrode plate distances,higher H₂O₂ production (1,152.38 mg·L^-1),and better current efficiency (89%) in SPE electrolytic cells.

秦祺月(1998-),女,硕士生,研究方向为电催化产过氧化氢,qinqiyue2016@whu.edu.cn。