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Comment on "First principles electrochemistry: electrons and protons reacting as independent ions" [J. Chem. Phys.
1ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah 84108.
Abstract:
The entropy of the electron gas used by Llano and Eriksson (LE) in the definition they used for an absolute half-cell potential (AHCP) is indeterminate. This AHCP is therefore not based on a thermodynamically well-defined process and cannot easily be extended to other thermodynamic functions such as entropy. An alternative approach to the AHCP avoids these difficulties. The present comment also corrects statements and concepts presented by LE about the temperature coefficient of the Fermi level and surface charge of the electrolyte solution.
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