Fig. 4: The structural evolution of Ru-NiPS3 NSs during the HER process. | Nature Communications

Fig. 4: The structural evolution of Ru-NiPS3 NSs during the HER process.

From: Unraveling and leveraging in situ surface amorphization for enhanced hydrogen evolution reaction in alkaline media

Fig. 4

a Schematic illustration of the in situ electrochemical liquid cell TEM holder and the liquid cell. In situ liquid TEM image (scale bar: 0.2 μm) of Ru-NiPS3 NSs (b) before and (c) after chronopotentiometry test. d, e demonstrated the corresponding SAED patterns (scale bar: 5 1/nm) for (b) and (c), respectively. The in situ TEM image provided clear evidence of a reconstruction process occurring at the edges of the NSs during the HER process. Additionally, the corresponding SAED pattern confirmed that a portion of the NSs underwent a transformation into a polycrystalline and amorphous state.

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