Membrane electrode assembly of electrochemical device, fuel cell, electrochemical hydrogen pump, and hydrogen sensor

摘要

Problem to be solved: to provide a membrane electrode assembly of an electrochemical device having enhanced reliability.SolutionThe membrane electrode assembly of the electrochemical device of the present invention isProton conductive solid electrolyte membraneThe composition formula bzr1-x1m1x1o3 (M1 isOne or more elements selected from the elements whose trivalent ion radii are less than 0.720. Ang. And less than 0.880A first compound represented by 0 < X1 < 1An electrode comprising at least one of the second compound represented by bazr1-x2 tmc2o3 (0 < x2 < 0.3) and the composition formula and the electrode comprising Ni and the.Diagram