Dynamic electrochemical impedance spectroscopy of Pt/C-based membrane-electrode assemblies subjected to cycling protocols

Dynamic electrochemical impedance spectroscopy reconstructed from continuous impedance measurement of single frequency during charging/discharging

“…DEIS was later introduced to lithium metal battery by Osaka et al, in 1994 [10], and to lithium-ion battery by Itagaki et al, in 2004 [6,7]. It has also been applied to corrosion science [11] and fuel cell technology [12].…”

Electrochemical study of LaGaO3 as novel electrode material of hydrogen battery (Ni/MH)

“…With cycling, the electrode structure changed in various ways: agglomeration, roughening, and dissolution. 61 The exponent values of CPE dl n dl in 48 The Warburg elememt Y 0 is related to the mass hydrogen diffusion. The fitted value of Y 0 also changed in the same way as CPE dl (Table 1).…”

“…The change of the electrode surface over cycling may be contributed to the variation of pseudo‐double layer capacitance . With cycling, the electrode structure changed in various ways: agglomeration, roughening, and dissolution 61 . The exponent values of are less than unity, varied between 0.54–0.89, indicating a strong modification in the surface of electrode with cycling.…”

Effect of electrode Pt-loading and cathode flow-field plate type on the degradation of PEMFC

“…But the distribution of anode Pt particles on carbon support is more even than that of cathode Pt particles. It can be attributed to that the cathode has suffered high potential during current-variation cycles, and the Pt oxide layers forming and removal repeatedly, which leads to the quicker decay of cathode Pt/C catalyst [38] .…”