Figure 3. Schematic diagram of the core-shell nanocluster formation process (IMAGE)

Seoul National University College of Engineering

Figure 3. Schematic diagram of the core-shell nanocluster formation process

Caption

First, titanium dioxide (TiO₂) is doped with molybdenum (Mo) through initial hydrothermal synthesis. Next, additional hydrothermal synthesis is performed to deposit ruthenium oxide (RuO₂) onto the molybdenum-doped titanium dioxide substrate. A subsequent low-temperature thermal treatment (200°C) in air facilitates diffusion between titanium, molybdenum, and ruthenium oxide, forming the core-shell structure. Finally, electrochemical reduction during the hydrogen evolution reaction results in the synthesis of a unique core-shell nanocluster material.

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© Energy & Environmental Science, originally published in Energy & Environmental Science

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