Inert electrolyte: non-redox active and non complexing ligand
A supporting electrolyte, in electrochemistry, according to an IUPAC definition,[1] is an electrolyte containing chemical species that are not electroactive (within the range of potentials used) and which has an ionic strength and conductivity much larger than those due to the electroactive species added to the electrolyte. Supporting electrolyte is also sometimes referred to as background electrolyte, inert electrolyte, or inactive electrolyte.
Supporting electrolytes are widely used in electrochemical measurements when control of electrode potentials is required. This is done to increase the conductivity of the solution (to practically eliminate the so-called IR drop, or ohmic potential drop from Ohm's law: V = IR), to eliminate the transport of electroactive species by ion migration in the electric field, to maintain constant ionic strength, to maintain constant pH, etc.[2]
^IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "supporting electrolyte". doi:10.1351/goldbook.S06149
^Joseph Wang, "Analytical Electrochemistry", 3rd edition, Wiley VCH. 2006, ISBN 978-0-471-67879-3, p. 118.
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room temperature to form a crosslinked self-supporting sheet. The hydrophobic structure prevents the electrolyte from leaking into the reactant gas flow channels...
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