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Monodisperse Pt nanoparticles anchored on N-doped black TiO2as high performance bifunctional electrocatalyst
Wang, Xin1; Yuan, Xiaotao1; Liu, Xiangye1; Dong, Wujie1; Dong, Chenlong1; Lou, Minghe1; Li, Juncen1; Lin, Tianquan2; Huang, Fuqiang1,2
2017
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume701Pages:669-675
AbstractNitrogen-doped black TiO2(Nx:TiO2−x) recently attracted attention as a novel photocatalyst. It has higher electrical conductivity and more suitable energy level for oxygen reduction and hydrogen evolution than pure TiO2due to the presence of Ti3+species. The unique electronic structure and strong metal-support interaction make it a candidate support for Pt-based electrocatalyst. Carbon is universal as support of Pt-based electrocatalyst. However, it is restricted to the poor durability and bad methanol tolerance. On the contrary, the chemical stability of nitrogen-doped TiO2contributes to the higher durability and methanol tolerance of Pt/Nx:TiO2−xthan Pt/C catalyst. Monodisperse Pt nanoparticles are loaded on Nx:TiO2−xby a facile borohydride reduction method. The Pt/Nx:TiO2−xhybrid shows better oxygen reduction reaction (ORR) activity with the half wave potential of 0.78 V (vs. reversible hydrogen electrode) than Pt and good hydrogen evolution reaction (HER) performance with 19 mV onset overpotential, similar to Pt/C catalyst. More importantly, Pt/Nx:TiO2−xcatalyst has robust durability and higher methanol tolerance than Pt/C catalyst. All these electrostatic performances stem from the suitable energy level for ORR and HER and the strong interaction between Pt and Nx:TiO2−xsupport. This hybrid material is a promising candidate for the fuel cell in the future. © 2017 Elsevier B.V.
DOI10.1016/j.jallcom.2017.01.152
EI Accession Number20170503307570
EI KeywordsDoping (additives)
EI Classification Number533.1 Ore Treatment - 547.1 Precious Metals - 702.2 Fuel Cells - 761 Nanotechnology - 801 Chemistry - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25671
Collection中国科学院上海硅酸盐研究所
Corresponding AuthorLin, Tianquan
Affiliation1.State Key Laboratory of Rare Earth Materials Chemistry and Applications and National Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing; 100871, China;
2.State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
Recommended Citation
GB/T 7714
Wang, Xin,Yuan, Xiaotao,Liu, Xiangye,et al. Monodisperse Pt nanoparticles anchored on N-doped black TiO2as high performance bifunctional electrocatalyst[J]. Journal of Alloys and Compounds,2017,701:669-675.
APA Wang, Xin.,Yuan, Xiaotao.,Liu, Xiangye.,Dong, Wujie.,Dong, Chenlong.,...&Huang, Fuqiang.(2017).Monodisperse Pt nanoparticles anchored on N-doped black TiO2as high performance bifunctional electrocatalyst.Journal of Alloys and Compounds,701,669-675.
MLA Wang, Xin,et al."Monodisperse Pt nanoparticles anchored on N-doped black TiO2as high performance bifunctional electrocatalyst".Journal of Alloys and Compounds 701(2017):669-675.
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