Simple Gas-Phase Synthesis of 2D Nanohybrids with Metallic Nanocatalysts for Enhanced Water Splitting
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초록
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A sequential method utilizing air jet milling followed by chemical vapor deposition (CVD) proves to be an effective approach for creating heterolayered Gas-phase exfoliation 2D nanohybrids (GPENs) adorned with nanocatalysts. This method generates tens of grams of GPENs, a significant quantity at the laboratory scale, without the use of solvents or water and without requiring additional purification steps. X-ray photoelectron and Raman spectroscopy data reveal that the heterolayers within the GPENs influence each other's chemical and electronic properties while reducing interactions between layers of the same component. The GPENs decorated with nanocatalysts exhibit outstanding efficiency in producing hydrogen and oxygen gases in water-splitting cells. Importantly, the proposed all-gas-phase processes enable the large-scale manufacturing of functional GPENs with minimal environmental impact, a critical factor for the commercialization of nanomaterials.