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PdAu催化剂的纳米粒子大小和组成决定了通过O2还原生成H2O2的结构和 ...
该研究通过稳态测量、原位红外光谱和DFT计算,揭示了不同尺寸(1.8 nm和11.8 nm)PdχAu催化剂表面Pd原子的分布与反应性能的关系。结果表明,小尺寸催化剂因Pd原子暴露度更高、表面重构更显著,表现出更强的H2O2选择性及反应速率,且Pd-Au合金的电子结构和几何 ...
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