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目的研究不同催化剂制作工艺对水电解产生臭氧的电流效率的影响。方法采用SPE固体聚合物水电解器做臭氧发生器,以二氧化铅为阳极,碳载铂为阴极,考察不同催化剂下水电解制备臭氧的电流效率。结果以PbO2为原材料,均匀混合2 wt%的PTFE所制得的阳极材料,在表观电流密度1.6 A·cm-2下工作,长时间工作的平均电流效率都在30%以上。结论臭氧作为一种强氧化剂,可以用较低的能耗在深度处理载人航天器冷凝水上发挥作用。
Objective To study the effect of different catalyst preparation processes on the current efficiency of ozone generation by water electrolysis. Methods SPE solid polymer electrolyzer was used as ozone generator. Lead dioxide was used as anode and platinum was used as cathode. The current efficiency of ozone electrolysis under different catalysts was investigated. Results The anode materials prepared from PbO2 as the raw material and uniformly mixed with 2 wt% PTFE had an apparent current density of 1.6 A · cm-2. The average current efficiency over a long period of time was above 30%. Conclusion As a strong oxidant, ozone can play a role in the deep treatment of manned spacecraft condensate with lower energy consumption.