Fig. 2: Structure and electrochemical characterizations of the composite. | Nature Communications

Fig. 2: Structure and electrochemical characterizations of the composite.

From: Multi-functional anodes boost the transient power and durability of proton exchange membrane fuel cells

Fig. 2

a, b SEM, c TEM, and d high-resolution TEM images of the composite. e XRD pattern of the composite showing a hexagonal WO3 crystalline structure. f A cyclic voltammetry curve of the composite from −0.4 to 0.5 V vs. reversible hydrogen electrode (RHE). g Galvanostatic charge/discharge curves of the composite at different current densities. h Cycling stability of the composite electrode in 0.5 M H2SO4.

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