Photoreduction preparation of PdPt/P2W18/rGO nanocomposite for alcohol electrooxidation

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2025-09-26 DOI:10.1039/d5cp01891a

Peisong Yan, Bo Zhao, Xiangting Dong, Zhelin Liu

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Abstract

Herein, palladium-platinum nanoparticles were assembled onto the surface of reduced graphene oxide with the assistance of polyoxometalate K₆P₂W₁₈O₆₂ (abbreviated as P₂W₁₈) as photocatalyst via a facile and green photoreduction route. The as-prepared nanocomposites were investigated by characterizations including transmission electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, and X-ray photoelectron spectroscopy. Motivated by the development of anode electrocatalyst of direct alcohol fuel cell, the assembled nanocomposite was developed as the electrocatalyst towards the electrooxidation of alcohol in alkaline electrolyte. Results show that the fabricated PdPt/P₂W₁₈/rGO nanocomposite exhibits enhanced electrocatalytic mass activity and stability compared with commercial 10% Pd/C catalyst, exhibiting potential practical prospect in fuel cell applications. The proposed fabrication approach can also be extended to the photoreduction preparation of other Pd alloy with the assistance of other polyoxometalate, and may spread the application in other fields.

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醇电氧化用ppt /P2W18/氧化石墨烯纳米复合材料的光还原制备

本研究以多金属氧酸盐K6P2W18O62（简称P2W18）为光催化剂，通过简单、绿色的光还原途径，将钯铂纳米颗粒组装在还原的氧化石墨烯表面。采用透射电子显微镜、x射线衍射、傅里叶变换红外光谱和x射线光电子能谱对制备的纳米复合材料进行了表征。在直接乙醇燃料电池阳极电催化剂研究进展的推动下，研究了组装纳米复合材料作为碱性电解液中乙醇电氧化的电催化剂。结果表明，制备的ppt /P2W18/rGO纳米复合材料的电催化质量活性和稳定性均高于10% Pd/C催化剂，在燃料电池中具有潜在的应用前景。所提出的制备方法也可以推广到其他多金属氧酸盐辅助下光还原制备其他Pd合金，并可能在其他领域推广应用。

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来源期刊

Physical Chemistry Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.