Fluid electrolyte solutions for electrochemistry at near liquid nitrogen temperatures

This paper reports the discovery of three remarkable solvent mixtures that extend the useable range of electrochemical voltammetry in fluid electrolyte solutions to temperatures that approach the boiling point of liquid nitrogen. As part of an ongoing effort to develop the methodology to fabricate electrodes from copper oxide ceramic superconductors and study their response below their superconducting critical temperature, T{sub c} we found it necessary to extend the limits of low-temperature electrochemistry. Gold microband electrodes are employed in the present report to explore the voltammetric limits of the new low-temperature solvents.