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baihehuaer

新虫 (小有名气)

[求助] 怎样选择合适的电沉积电压,求高人指点! 已有4人参与

怎样选择合适的电沉积电压,比如在玻碳电极上沉积铂纳米颗粒,应该选择多大的电压合适,是不是扫描CV看还原峰呢?求高人指点!
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zhanghongl

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【答案】应助回帖

感谢参与,应助指数 +1
The stability ranges of 2D Me and 3D Me phases on native substrates are characterized by the Nernst equation describing the thermodynamic equilibrium for Me deposition and dissolution on native and foreign substrates.
E Me/MeZ+, represents the upper limit of the stability range of a 3D Me bulk phase.

on foreign substrate:
the Nernst equilibrium potential, E Me/MeZ+, represents the limit of the stability ranges of both 2D and 3D Me phases. At E = E Me/MeZ+, 2D and 3D Me phases coexist. Consequently, underpotential deposition (UPD) and overpotential deposition (OPD) of Me on S are connected with the formation of 2D and 3D Me phases, respectively.
4楼2014-03-28 02:28:34
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