Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 305-701 (Korea); Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701 (Korea).
Angew Chem Int Ed Engl. 2015 Feb 16;54(8):2340-4. doi: 10.1002/anie.201410951. Epub 2015 Feb 3.
Generation of hot electron flows and the catalytic activity of Pt nanoparticles (NPs) with different sizes were investigated using catalytic nanodiodes. We show that smaller Pt NPs lead to higher chemicurrent yield, which is associated with the shorter travel length for the hot electrons, compared with their inelastic mean free path. We also show the impact of capping on charge carrier transfer between Pt NPs and their support.
利用催化纳米二极管研究了不同尺寸的 Pt 纳米颗粒（NPs）的热电子流的产生和催化活性。我们表明，与非弹性平均自由程相比，较小的 Pt NPs 导致更高的化学电流产率，这与热电子的传输长度更短有关。我们还展示了盖帽对 Pt NPs 与其载体之间载流子转移的影响。
