Photoassisted electrolysis of water for hydrogen generation with TiO2 aggregate film
In this paper, the nanocrystallite aggregates of TiO2 were synthesized and characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Brunauer-Emmett-Teller (BET). The aggregates are of submicron size, formed by nano-sized crystallites and able to offer both a large specific surface area and desirable size comparable to the wavelength of visible light. Therefore, the TiO2 aggregates were also studied as photoelectrode in photoelectrochemical cell for hydrogen generation. The results show that the hydrogen generation rates are 0.47 ml/h*cm2 and 0.27 ml/h*cm2 during the first test with and without illumination, respectively. The current density also presented continually increasing during the light-on period. This was attributed to the photogenerated current, which benefited from the TiO2 aggregates and may significantly enhance the electrolysis rate of water.
Guanying Cao Qifeng Zhang Dawei Liu Junting Xi Guozhong Cao
Research Institute of Photonics, Dalian Polytechnic University, Dalian, China,116034 Department of Department of Materials Science and Engineering, University of Washington,Seattle, USA, 98195
国际会议
3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)
武汉
英文
1-4
2010-11-03（万方平台首次上网日期，不代表论文的发表时间）