News Column

Reports Summarize Photoelectrochemicals Study Results from School of Chemical Engineering and Technology

June 27, 2014

By a News Reporter-Staff News Editor at Energy Weekly News -- Data detailed on Biotechnology have been presented. According to news originating from Harbin, People's Republic of China, by VerticalNews correspondents, research stated, "To improve the separation efficiency of photoinduced charge carries, Au@SiO2 nanoparticles (NPs) with core-shell structure were loaded onto the surface of TiO2 nanorods grown on fluorine-doped tin oxide substrate by a facile two-step process. The resulted Au@SiO2/TiO2 photoanodes were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, as well as photoelectrochemical measurements."

Our news journalists obtained a quote from the research from the School of Chemical Engineering and Technology, "Compared with pristine TiO2 nanorod film, the Au@SiO2/TiO2 films showed remarkable enhancement in photoelectrochemical water splitting, with incident photon-to-current conversion efficiency increasing from 31 % to 37 % at 380 nm at 0.7 V versus saturated calomel electrode. This could be interpreted by the effect of metallic surface plasmon resonance of Au@SiO2 NPs, which would generate an intense electromagnetic field with spatially nonhomogenous distributed intensity. As a result, the charge carriers generated in the near-surface region of TiO2 nanorods could be easily separated."

According to the news editors, the research concluded: "This modification method based on the effect of metallic surface plasmon resonance for promoted charge carrier separation provides a promising way to develop semiconductor photoelectrodes with high solar water-splitting performance."

For more information on this research see: Au@SiO2 core/shell nanoparticle-decorated TiO2 nanorod arrays for enhanced photoelectrochemical water splitting. Chinese Science Bulletin, 2014;59(18):2191-2198. Chinese Science Bulletin can be contacted at: Science Press, 16 Donghuangchenggen North St, Beijing 100717, Peoples R China. (World Scientific Publishing -; Chinese Science Bulletin -

The news correspondents report that additional information may be obtained from J.N. Chen, Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, People's Republic of China. Additional authors for this research include M. Yu, Y.H. Wang, S.H. Shen, M. Wang and L.J. Guo.

Keywords for this news article include: Asia, Biotechnology, Harbin, Nanorod, Nanotechnology, Photoelectrochemical, Emerging Technologies, People's Republic of China

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Source: Energy Weekly News

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