In this work, hydrogen (H₂) permeation fluxes through 230 nm‐thick graphene oxide (GO) membrane deposited on porous YSZ hollow fiber were measured and correlated to an explicit H₂ permeation model. H₂ fluxes through such GO‐YSZ hollow fiber membrane increased from 4.83 × 10⁻⁸ mol cm⁻² s⁻¹ to 2.11 × 10⁻⁷ mol cm⁻² s⁻¹ with temperature rise from 20 to 100 °C. The activation energy of H₂ permeation was determined by the linear regression of the experimental data and was applied in the theoretical calculations. The model predictions fit well the temperature dependent and the argon sweep gas flow rate dependent H₂ fluxes data. Using the derived permeation model, the effects of vacuum pressure at lumen side and H₂ partial pressure at shell side, membrane area, and GO membrane film thickness on the membrane performance were simulated and discussed to provide insights for practical applications. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2711–2720, 2018

中文翻译：

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YSZ中空纤维支撑氧化石墨烯多孔膜氢分离模型

在这项工作中，测量了通过沉积在多孔YSZ中空纤维上的230 nm厚的氧化石墨烯（GO）膜的氢（H ₂）渗透通量，并将其与明确的H ₂渗透模型相关。随着温度从20升高到100°C，通过这种GO-YSZ中空纤维膜的H ₂通量从4.83×10 ^-8 mol cm ^-2 s ^-1增加到2.11×10 ^-7 mol cm ^-2 s ^-1。H ₂的活化能通过实验数据的线性回归确定渗透率，并将其应用于理论计算中。模型预测很好地拟合了温度依赖性和氩气吹扫气体流速依赖性的H ₂通量数据。使用导出的渗透模型，对内腔侧的真空压力和壳侧的H ₂分压，膜面积以及GO膜的膜厚对膜性能的影响进行了模拟和讨论，为实际应用提供了见识。©2018美国化学工程师学会AIChE J，64：2711–2720，2018