Gold Digital Video Disc Platform Modified with Graphitic Carbon Nitride Decorated Au–Pt Nanoparticles for Electrochemical Oxidation of Methanol

IF 2.8 4区化学 Q3 CHEMISTRY, PHYSICAL

Electrocatalysis Pub Date : 2025-05-07 DOI:10.1007/s12678-025-00955-5

Muhaned Mohammed Eteya, Behjat Deiminiat

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Abstract

Herein, for the first time, a gold digital video disc (GDVD) platform was modified layer by layer with the graphitic carbon nitride (g-C₃N₄) nanosheets and gold-platinum nanoparticles (Au–PtNPs), and it was used as an efficient nanocatalyst for the electrocatalytic oxidation of the methanol molecules. The graphitic carbon nitride nanosheets were synthesized through the pyrolysis method, and they were employed as a substrate for the distribution of the Au–PtNPs. The change in the electrochemical behavior of the GDVD surface was investigated in each modification step. The electrocatalytic oxidation of the methanol molecules at the surface of different modified GDVDs was evaluated using cyclic voltammetry (CV) and chronoamperometry techniques. The experimental results indicated that the Au–Pt/g-C₃N₄/GDVD has a higher electrocatalytic activity for the oxidation of methanol under the optimized experimental conditions in comparison with the other studied GDVDs. The kinetic study of the electro-oxidation of methanol was also investigated, and the exchange current density (J₀) values revealed a better kinetic in the presence of graphitic carbon nitride and Au–PtNPs.

Graphical Abstract

Abstract Image

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石墨氮化碳修饰金铂纳米粒子修饰金数字视频光盘平台用于甲醇的电化学氧化

本文首次将石墨化氮化碳（g-C3N4）纳米片和金-铂纳米颗粒（Au-PtNPs）一层一层地修饰金数字视频光盘（GDVD）平台，并将其作为电催化氧化甲醇分子的高效纳米催化剂。采用热解法合成了石墨化氮化碳纳米片，并将其作为Au-PtNPs分布的底物。研究了改性过程中GDVD表面电化学行为的变化。采用循环伏安法和计时安培法研究了不同改性gdvd表面甲醇分子的电催化氧化反应。实验结果表明，在优化的实验条件下，Au-Pt /g-C3N4/GDVD对甲醇的氧化具有较高的电催化活性。对甲醇的电氧化动力学进行了研究，结果表明，石墨化碳和Au-PtNPs存在时，交换电流密度（J0）值表现出更好的动力学特性。图形抽象

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来源期刊

Electrocatalysis CHEMISTRY, PHYSICAL-ELECTROCHEMISTRY

CiteScore

4.80

自引率

6.50%

发文量

审稿时长

>12 weeks

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