Department of Chemical and Biomolecular Engineering (BK21+ Program), KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.
Nanoscale. 2016 May 21;8(19):10043-8. doi: 10.1039/c6nr02124g. Epub 2016 May 3.
We report the photocatalytic conversion of CO2 to CH4 using CuPt alloy nanoclusters anchored on TiO2. As the size of CuPt alloy nanoclusters decreases, the photocatalytic activity improves significantly. Small CuPt nanoclusters strongly bind CO2 intermediates and have a stronger interaction with the TiO2 support, which also contributes to an increased CH4 generation rate. The alloying and size effects prove to be the key to efficient CO2 reduction, highlighting a strategic platform for the design of photocatalysts for CO2 conversion.
我们报告了使用负载在 TiO2 上的 CuPt 合金纳米团簇将 CO2 光催化转化为 CH4。随着 CuPt 合金纳米团簇尺寸的减小，光催化活性显著提高。小的 CuPt 纳米团簇能强烈结合 CO2 中间产物，并与 TiO2 载体具有更强的相互作用，这也有助于提高 CH4 的生成速率。合金化和尺寸效应被证明是提高 CO2 还原效率的关键，为设计用于 CO2 转化的光催化剂提供了一个战略平台。
