Ti3+-Promoted High Oxygen-Reduction Activity of Pd Nanodots Supported by Black Titania Nanobelts | |
Yuan, Xiaotao1,2; Wang, Xin1,2; Liu, Xiangye1,2; Ge, Hongxin1,2; Yin, Guoheng3; Dong, Chenlong1,2; Huang, Fuqiang1,2,3 | |
刊名 | ACS APPLIED MATERIALS & INTERFACES |
2016-10-19 | |
卷号 | 8期号:41页码:27654-27660 |
关键词 | black titania nanobelts charge transfer oxygen reduction reaction Pd nanodots strong metal-support interaction (SMSI) |
英文摘要 | One-dimensional nanocrystals favoring efficient charge transfer have attracted enormous attentions, and conductive nanobelts of black titania with a unique band structure and high electrical conductivity would be interestingly used in electrocatalysis. Here, Pd nanodots supported by two kinds of black titania, the oxygen-deficient titania (TiO2-x) and nitrogen-doped titania (TiO2-x:N), were synthesized as efficient composite catalysts for oxygen-reduction reaction (ORR). These composite catalysts show improved catalytic activity with lower overpotential and higher limited current, compared to the Pd nanodots supported on the white titania (Pd/TiO2). The improved activity is attributed to the relatively high conductivity of black titania nanobelts for efficient charge transfer (CT) between Ti3+ species and Pd nanodots. The CT process enhances the strong metal-support interaction (SMSI) between Pd and TiO2, which lowers the absorption energy of O-2 on Pd and makes it more suitable for oxygen reduction. Because of the stronger interaction between Pd and support, the Pd/TiO2-x:N also shows excellent durability and immunity to methanol poisoning. |
WOS标题词 | Science & Technology ; Technology |
类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
研究领域[WOS] | Science & Technology - Other Topics ; Materials Science |
关键词[WOS] | HYDROGENATED TIO2 ; PHOTOCATALYTIC ACTIVITY ; VISIBLE-LIGHT ; CATALYST ; NANOCRYSTALS ; SURFACES ; NANOPARTICLES ; ELECTRODE ; DIOXIDE ; METALS |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000385992400028 |
内容类型 | 期刊论文 |
源URL | [http://ir.sic.ac.cn/handle/331005/22068] |
专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China |
推荐引用方式 GB/T 7714 | Yuan, Xiaotao,Wang, Xin,Liu, Xiangye,et al. Ti3+-Promoted High Oxygen-Reduction Activity of Pd Nanodots Supported by Black Titania Nanobelts[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(41):27654-27660. |
APA | Yuan, Xiaotao.,Wang, Xin.,Liu, Xiangye.,Ge, Hongxin.,Yin, Guoheng.,...&Huang, Fuqiang.(2016).Ti3+-Promoted High Oxygen-Reduction Activity of Pd Nanodots Supported by Black Titania Nanobelts.ACS APPLIED MATERIALS & INTERFACES,8(41),27654-27660. |
MLA | Yuan, Xiaotao,et al."Ti3+-Promoted High Oxygen-Reduction Activity of Pd Nanodots Supported by Black Titania Nanobelts".ACS APPLIED MATERIALS & INTERFACES 8.41(2016):27654-27660. |
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