Fig. 2: Synthesis and microscopy characterization of catalysts. | Nature Communications

Fig. 2: Synthesis and microscopy characterization of catalysts.

From: CO-tolerant RuNi/TiO2 catalyst for the storage and purification of crude hydrogen

Fig. 2

HAADF-STEM and corresponding EDS-mapping images of O, Ti, Ni, and Ru elements of 2Ru5Ni/TiO2 after air calcination (a, b) and H2 reduction (c, d), respectively. e, f HAADF-STEM images of reduced 5Ni/TiO2, the inset image in (f) corresponds to the EDS-mapping image of Ni element. g Schematic illustration of the evolution of bimetallic Ru–Ni and monometallic Ni species on TiO2 during sequential calcination and hydrogen reduction treatments, respectively.

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