Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/38129
Title: A Novel Synthesis of triangular Pt Nanosheets on Pd surface with a Strong Electrocatalytic Activity for Oxidation of Methanol
Authors: Tran, Thi Bich Quyen
Nguyen, Phu Qui
Vo, Le Nhat An
Nguyen, Thi Tho
Luong, Huynh Vu Thanh
Bui, Le Anh Tuan
Huynh, Tan-Thanh
Keywords: Pd/Pt triangular nanosheets (Pd/Pt TANSs)
Novel synthesis
Catalytic activity
Methanol oxidation reaction (MOR)
Pt nanotriangles (Pt NTAs)
Issue Date: 2019
Series/Report no.: International Journal of Electrochemical Science;No. 14 .- P.6986-6998
Abstract: The study presents three-dimensional Pd/Pt triangular nanosheets with controlled shape and composition synthesized by a novel approach that uses lemon extract as a biological reducing agent coupled with a microwave treatment at 80 W (~64°C) for 30 min, which proved to be a simple, rapid, and environmentally-friendly method. The morphology, structure, and composition of prepared Pd/Pt triangular nanosheets were identified by transmission electronic microscopy (TEM), X-ray diffraction (XRD), and energy-dispersive X-ray (EDX) techniques. Moreover, the electrocatalytic properties of these synthesized Pd/Pt triangular nanosheets (Pd/Pt TANSs), and Pd@Au core/shell nanosheet (Pd@Au NS), and Pd nanosheet (Pd NS) electrocatalysts for methanol oxidation reaction (MOR) were systematically researched using the cyclic voltammetry method. The results showed that Pd/Pt triangular nanosheet (Pd/Pt TANS) electrocatalysts provided a stronger catalytic activity of about ~2.4 and ~1.4 times that of Pd NS and Pt@Au NS catalysts for MOR. In addition, these new triangular nanosheet electrocatalysts achieved a higher MOR performance with decreased use of Pt. This method can create a general approach for the shape-controlled synthesis of bimetallic Pt/M (M = Pd, Cu, Au, Mo, Mn, etc.) triangular nanocatalysts for promising applications in fuel cells in the future.
URI: https://dspace.ctu.edu.vn/jspui/handle/123456789/38129
Appears in Collections:Tạp chí quốc tế

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