| 氮掺杂TiO_2纳米线阵列优越的可见光光电性能(英文) |
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| 引用本文： | 吕小军,李悦明,张昊,陈达,Jennifer Hensel,张金中,李景虹.氮掺杂TiO_2纳米线阵列优越的可见光光电性能(英文)[J].电化学,2009(4). |
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| 作者姓名： | 吕小军 李悦明 张昊 陈达 Jennifer Hensel 张金中 李景虹 |
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| 作者单位： | 清华大学化学系;美国加利福尼亚大学Santa Cruz分校化学与生物化学系; |
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| 基金项目： | the National Natural Science Foundation of China(No.20628303); 863 Project(2006AA05Z123) |
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| 摘 要： | 成功制备了氮掺杂锐钛矿TiO2纳米线,并研究了它的光电化学性质.结果表明,与商用P25 TiO2纳米粒子和未掺杂TiO2纳米线相比,氮掺杂TiO2纳米线作为光阳极明显地提高了光电转换效率(IPCE%),在可见光区有明显光吸收;在100 mW/cm2可见光光照下,氮掺杂TiO2纳米线具有最大的光电流密度和能量转换效率.例如,当电压为0.09 V(vs.Ag/AgC l)时最大能量转换效率为0.52%,均高于未掺杂TiO2纳米线和商用P25 TiO2纳米粒子的,充分表现出它优越的光响应和光电化学性能,在光电化学池、太阳能制氢等方面具有广泛的应用前景.
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| 关 键 词： | 氮掺杂 TiO2纳米线阵列 可见光吸收 光电化学 光催化 |
Enhanced Visible Light Photoelectrochemical Performances with Nitrogen Doped TiO_2 Nanowire Arrays |
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| LV Xiao-jun,LI Yue-ming,ZHANG Hao,CHEN Da,Jennifer Hensel,Jin Z Zhang,LI Jing-hong.Enhanced Visible Light Photoelectrochemical Performances with Nitrogen Doped TiO_2 Nanowire Arrays[J].Electrochemistry,2009(4). |
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| Authors: | LV Xiao-jun LI Yue-ming ZHANG Hao CHEN Da Jennifer Hensel Jin Z Zhang LI Jing-hong |
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| Institution: | LV Xiao-jun1,LI Yue-ming1,ZHANG Hao1,CHEN Da1,Jennifer Hensel2,Jin Z Zhang2*,LI Jing-hong1*(1.Department ofChemistry,Tsinghua University,Beijing100084,China,2.Department ofChemistry , Biochemistry,University ofCalifornia,Santa Cruz,California95064,USA) |
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| Abstract: | Self-organized anodic anatase TiO2nanowire arrays doped with nitrogen have been successfully fabri-cated and their photoelectrochemical(PEC) properties have been characterized and found to be substantially im-proved compared to undoped nanowires or commercial P25 nanoparticles.Photocurrent measured with monochro-matic incident light showed that the incident photon-to-current efficiency(IPCE,%) values of nanowire arrayelectrodes with or without N-doping were obviously higher than that of commercial P25 nanop... |
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| Keywords: | nitrogen doped TiO2nanowire arrays visible light photoelectrochemical performances photoca-talysis |
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