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lijisen

金虫 (正式写手)

[求助] 泡沫镍上电沉积样品后,进行析氧测试,电流较大时,样品易脱落,这是什么原因? 已有1人参与

泡沫镍上电沉积样品后,进行析氧测试,电流较大时,样品易脱落,这是什么原因?求指导
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Jackcd12

至尊木虫 (知名作家)

【答案】应助回帖

感谢参与,应助指数 +1
大电流导致大量气体析出,气体的快速析出对电极表面涂层有很强的机械剥离作用。
Themoreamanlearns,themoreheknowshisignorance!
2楼2020-05-27 15:52:52
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美珞珞

铁虫 (小有名气)


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3楼2020-05-28 09:53:36
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愚蠢学生

铁虫 (著名写手)

一个是气泡逸出的推动力会瓦解沉积物,再者沉积物通常是阳离子在负电下还原得到的,析氧的正电压及氧气本身容易把它氧化

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4楼2020-07-23 00:57:11
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