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The calibration of SCE reference electrode is performed in a standard three-electrode system with polished Pt wires as the working and counter electrodes, and the SCE as the reference electrode. Electrolytes are pre-purged and saturated with high purity H2. Linear scanning voltammetry (LSV) is then run at a scan rate of 0.1 mV s¨â, and the potential at which the current crossed zero is taken to be the thermodynamic potential (vs. SCE) for the hydrogen electrode reactions. For example, in 0.1 M HClO4, the zero current point is at -0.304 V, so E (RHE) = E (SCE) + 0.304 V; in 0.1 M KOH, the zero current point is at -0.998 V, so E (RHE) = E (SCE) + 0.998 V. ÕâÖÖÏà¶Ôµçλ·½·¨ºÜÌØÊâ°¡£¡ÎÒ˵µÄÂð¡£ÓÐÈËÄÜÖ¸³öΪʲôҪ²ÉÓÃÕâÖÖÏà¶Ôµçλ·½·¨ÄØ£¿ |
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xgyanger
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xuwangri
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- Ìû×Ó: 374
- ÔÚÏß: 119.2Сʱ
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- ÐÔ±ð: GG
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4Â¥2012-06-02 07:52:42
tysoe
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6Â¥2012-06-03 17:46:49
jiangkezhu
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- Ìû×Ó: 395
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- ³æºÅ: 1338965
- ×¢²á: 2011-07-06
- ÐÔ±ð: GG
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