Platinum Nanoparticles Anchored on TiO2/C Nanowires as a High Performance Catalyst for Hydrogen Peroxide Eletroreduction. Issue 5 (30th August 2016)

• Record Type: Journal Article
• Authors: Cai, Z.; Zhang, D.; Cheng, K.; Song, C.; Li, Y.; Ye, K.; Yan, P.; Cao, D.; Wang, G.
• Is Part Of: Fuel cells. Volume 16:Issue 5(2016:Oct.)
• Page Start: 646
• Page End: 651
• Publication Date: 2016-08-30
• Subjects: Basic Medium -- Core and Shell Nano Array -- Electrochemistry -- Fuel Cells -- Hydrogen Peroxide Electroreduction -- Platinum Nanoparticle -- Three‐dimensional Architecture Electrode; Fuel cells -- Periodicals; 621.312429
• DOI: 10.1002/fuce.201600009
• Languages: English
• ISSNs: 1615-6846

Abstract

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 H2 O2 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 H2 O2 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.