Comprehensive Study of the Stability of PtCu/C Catalysts for Low-Temperature Fuel Cells

IF 0.8 Q3 Engineering

Nanotechnologies in Russia Pub Date : 2024-09-10 DOI:10.1134/S2635167624600913

S. V. Belenov, E. E. Moguchikh, A. S. Pavlets, I. V. Pankov, V. S. Menshchikov

引用次数: 0

Abstract

The catalytic activity in the oxygen-reduction reaction and stability in various stress-testing modes are studied for bimetallic PtCu/C catalysts with platinum contents of 20 and 30 wt %, obtained by liquid-phase synthesis methods, is studied by cyclic-voltammetry methods on a rotating disk electrode in a three-electrode cell and as part of a membrane-electrode assembly in comparison with a commercial Pt/C catalyst. Significant differences in the degree of degradation of the studied PtCu/C and Pt/C catalysts for low-temperature fuel cells are shown, namely from 33 to 67% depending on the stress-testing method and catalyst composition.

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用于低温燃料电池的 PtCu/C 催化剂稳定性综合研究

通过液相合成方法获得的铂含量为 20 和 30 wt % 的双金属 PtCu/C 催化剂，与商用 Pt/C 催化剂相比，在三电极电池的旋转盘电极上以及作为膜电极组件的一部分，采用循环伏安法研究了氧还原反应中的催化活性和各种应力测试模式下的稳定性。结果表明，所研究的用于低温燃料电池的 PtCu/C 和 Pt/C 催化剂在降解程度上存在显著差异，根据应力测试方法和催化剂成分的不同，降解程度从 33% 到 67%不等。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nanotechnologies in Russia NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.