高效光催化H2的进化：控制去湿-去合金化在高度有序TiO2纳米管阵列上制备位置选择性高活性纳米多孔金颗粒
Efficient Photocatalytic H2 Evolution: Controlled Dewetting-Dealloying to Fabricate Site-Selective High-activity Nanoporous Au Particles on Highly Ordered TiO2 Nanotube Arrays
摘要：
叠加自序过程：我们形成阳极自组织二氧化钛纳米树桩，并利用它们的Au-Ag溅射膜的自序去湿。这在管顶部（冠位置）或底部（地面位置）形成有序的颗粒配置。通过去合金化，我们然后形成，从最少量的贵金属，多孔金纳米粒子，当在冠位置允许一个显着改善的光催化H2生产相比，由传统的去湿过程中产生的纳米粒子。
英文摘要：
Overlaid self-ordering processes: we form anodic self-organized TiO2 nanostumps and exploit them for self-ordering dewetting of Au-Ag sputtered films. This forms ordered particle configurations at tube top (crown position) or bottom (ground position). By dealloying we then form, from minimal amount of noble metal, porous Au nanoparticles that when in crown position allow for a drastically improved photocatalytic H2 production compared with nanoparticles produced by conventional dewetting processes.
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