论文标题
解剖酶中的巨峰强烈促进无共催化剂光催化氢的进化
Magneli-Phases in Anatase Strongly Promote Co-Catalyst-Free Photocatalytic Hydrogen Evolution
论文作者
论文摘要
二氧化钛（例如Ti4O7，Ti5O9等）的镁阶段提供了电子特性，即在室温下是一种稳定的金属行为。在此手稿中，我们证明，在热气溶胶合成过程中在剖析酶中本质形成的纳米含量阶段可以实现明显的光催化H2的生成。这无需在催化酶中使用任何外部共催化剂。在优化的条件下，获得30％氧化氢酶，25％Ti4O7和20％Ti5O9的混合相颗粒，可以在太阳光下以145 micromol H-1 G-1的速率提供直接光催化H2的直接光催化H2演化。这些解剖剂颗粒包含5-10 nm大小的Ti4O7和Ti5O9的生长阶段。关键是TI4O7的金属条带，它诱导粒子内电荷分离并以适当的能量和有利的尺寸转移级联反应，这些尺寸非常有效。
Magneli phases of titanium dioxide (such as Ti4O7, Ti5O9, etc.) provide electronic properties, namely a stable metallic behavior at room temperature. In this manuscript, we demonstrate that nanoscopic Magneli phases, formed intrinsically in anatase during a thermal aerosol synthesis, can enable significant photocatalytic H2 generation. This without the use of any extrinsic co-catalyst in anatase. Under optimized conditions, mixed phase particles of 30 percent anatase, 25 percent Ti4O7 and 20 percent Ti5O9 are obtained that can provide, under solar light, direct photocatalytic H2 evolution at a rate of 145 micromol h-1 g-1. These anatase particles contain 5-10 nm size inter-grown phases of Ti4O7 and Ti5O9. Key is the metallic band of Ti4O7 that induces a particle internal charge separation and transfer cascade with suitable energetics and favorable dimensions that are highly effective for H2 generation.
