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- Title
Platinum Nanoparticles Anchored on TiO<sub>2</sub>/C Nanowires as a High Performance Catalyst for Hydrogen Peroxide Eletroreduction.
- Authors
Cai, Z.; Zhang, D.; Cheng, K.; Song, C.; Li, Y.; Ye, K.; Yan, P.; Cao, D.; Wang, G.
- Abstract
In this paper, we employed the as-prepared TiO2/C core/shell nanoarrays (TiO2/C) obtained by a facile thermal evaporation method as a three-dimensional (3D) architecture to support Pt nanoparticles through an optimized electrodeposition process. The morphology and structure of the as-prepared electrode are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Its catalytic performance towards H2O2 electroreduction in basic medium is evaluated by linear sweep voltammetry (LSV) and chronoamperometry (CV). Results revealed that the electrode exhibits significantly high catalytic activity. The current density reached -0.172 A cm−2 in 1 mol dm−3 NaOH and 0.5 mol dm−3 H2O2 at -1.1 V ( vs. Ag/AgCl). This high performance might be due to the 3D electrode architecture inheriting the high electronic conductivity from carbon shell and providing a short pathway for the ion diffusion, and the using of Pt owning an excellent catalytic activity.
- Subjects
PLATINUM nanoparticles; HYDROGEN peroxide; ELECTROLYTIC reduction; PERFORMANCE of fuel cells; ELECTRIC properties of nanowires; ELECTROCHEMISTRY; CATALYSTS
- Publication
Fuel Cells, 2016, Vol 16, Issue 5, p646
- ISSN
1615-6846
- Publication type
Article
- DOI
10.1002/fuce.201600009