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weibiaowen新蟲 (初入文壇)
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[求助]
反電滲析功率測量
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有做反電滲析的前輩嗎？我想請教一下反電滲析裝置測功密度的具體操作是怎樣的��？參考文獻(xiàn)：OCV was measured for 180 s to ensure a steady state, followed by the adjustment of the current level as follows:1, 2, ..., 60 mA (steps of 1 mA). The corresponding voltage was measured with an interval of 1 s to draw the I−V plot. From the obtained I−V plot, the stack resistance was calculated using Ohm’s law (R = V/I).或者Electrochemical measurements: The performance of the membranes was evaluated using an Ivium potentiostat (Ivium Technologies, The Netherlands) in the chronopotentiometry mode. At each flow rate, 20 current steps (0, 2, 4 … 40 Am12) for 30 seconds each were applied. All measurements were performed at least three times. From the measured voltage (E)–current (I) curves, the gross power output was calculated as the maximum of the product from E and I. 我用電化學(xué)工作站測試的時(shí)候發(fā)現(xiàn)當(dāng)給定電流使得電池放電電流為0.1mA 0.2mA 。。。。1mA低放電電流時(shí)，電池電阻可以達(dá)到400多，當(dāng)控制放電電流為3mA 4mA 5mA。。。10mA時(shí)電池電阻為40-50，我用的是3膜4室（一濃一淡兩極化室），請問我如何才能準(zhǔn)確的測量反電滲析池工作室的功率密度。非常感謝！ |
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