He Da, Jin Tong, Li Wei, Pantovich Sebastian, Wang Dunwei, Li Gonghu
Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA.
Department of Chemistry, University of New Hampshire, Durham, NH, 03824, USA.
Chemistry. 2016 Sep 5;22(37):13064-7. doi: 10.1002/chem.201603068. Epub 2016 Aug 4.
In the presence of a molecular Co(II) catalyst, CO2 reduction occurred at much less negative potentials on Si photoelectrodes than on an Au electrode. The addition of 1 % H2 O significantly improved the performance of the Co(II) catalyst. Photovoltages of 580 and 320 mV were obtained on Si nanowires and a planar Si photoelectrode, respectively. This difference likely originated from the fact that the multifaceted Si nanowires are better in light harvesting and charge transfer than the planar Si surface.
在分子钴（II）催化剂存在的情况下，与金电极相比，硅光电极上二氧化碳还原在负得多的电位下发生。添加1%的水显著提高了钴（II）催化剂的性能。在硅纳米线和平面硅光电极上分别获得了580和320毫伏的光电压。这种差异可能源于多面硅纳米线在光捕获和电荷转移方面比平面硅表面更好这一事实。
