基于sio2修饰碳载体的PEM燃料电池阴极纳米结构电催化剂降解稳定性的电化学评价

IF 0.8 Q3 Engineering

Nanotechnologies in Russia Pub Date : 2025-07-21 DOI:10.1134/S2635167624602067

D. E. Grineva, A. A. Zasypkina, R. M. Mensharapov, D. D. Spasov, N. V. Panchenko, T. D. Patsaev, P. V. Dmitryakov, N. A. Ivanova

{"title":"基于sio2修饰碳载体的PEM燃料电池阴极纳米结构电催化剂降解稳定性的电化学评价","authors":"D. E. Grineva, A. A. Zasypkina, R. M. Mensharapov, D. D. Spasov, N. V. Panchenko, T. D. Patsaev, P. V. Dmitryakov, N. A. Ivanova","doi":"10.1134/S2635167624602067","DOIUrl":null,"url":null,"abstract":"The degradation resistance of modified SiO2 carbon supports for electrocatalysts was evaluated using accelerated stress testing under model conditions. No direct correlations were found between the degradation resistance of the supports and that of the electrocatalysts based on them. The intensification of electrochemical corrosion processes is attributed to the presence of oxygen-containing groups in the silicon dioxide modifier on the carbon support surface. Conversely, electrocatalysts based on modified carbon supports exhibit an increase in electrochemically active surface area and degradation resistance by an average of 10‒25%.","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"20 2","pages":"231 - 238"},"PeriodicalIF":0.8000,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electrochemical Evaluation of Degradation Stability in Nanostructured Electrocatalysts Based on SiO2-modified Carbon Supports for PEM Fuel Cell Cathodes\",\"authors\":\"D. E. Grineva, A. A. Zasypkina, R. M. Mensharapov, D. D. Spasov, N. V. Panchenko, T. D. Patsaev, P. V. Dmitryakov, N. A. Ivanova\",\"doi\":\"10.1134/S2635167624602067\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The degradation resistance of modified SiO2 carbon supports for electrocatalysts was evaluated using accelerated stress testing under model conditions. No direct correlations were found between the degradation resistance of the supports and that of the electrocatalysts based on them. The intensification of electrochemical corrosion processes is attributed to the presence of oxygen-containing groups in the silicon dioxide modifier on the carbon support surface. Conversely, electrocatalysts based on modified carbon supports exhibit an increase in electrochemically active surface area and degradation resistance by an average of 10‒25%.\",\"PeriodicalId\":716,\"journal\":{\"name\":\"Nanotechnologies in Russia\",\"volume\":\"20 2\",\"pages\":\"231 - 238\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2025-07-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nanotechnologies in Russia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S2635167624602067\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnologies in Russia","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2635167624602067","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}

引用次数: 0

摘要

在模型条件下，通过加速应力测试，对改性SiO2碳载体的电催化剂降解性能进行了评价。载体的降解性能与基于载体的电催化剂的降解性能之间没有直接的相关性。电化学腐蚀过程的加剧归因于碳载体表面二氧化硅改性剂中含氧基团的存在。相反，基于改性碳载体的电催化剂的电化学活性表面积和降解抗性平均增加了10-25%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Electrochemical Evaluation of Degradation Stability in Nanostructured Electrocatalysts Based on SiO2-modified Carbon Supports for PEM Fuel Cell Cathodes

查看原文本刊更多论文

Electrochemical Evaluation of Degradation Stability in Nanostructured Electrocatalysts Based on SiO2-modified Carbon Supports for PEM Fuel Cell Cathodes

The degradation resistance of modified SiO₂ carbon supports for electrocatalysts was evaluated using accelerated stress testing under model conditions. No direct correlations were found between the degradation resistance of the supports and that of the electrocatalysts based on them. The intensification of electrochemical corrosion processes is attributed to the presence of oxygen-containing groups in the silicon dioxide modifier on the carbon support surface. Conversely, electrocatalysts based on modified carbon supports exhibit an increase in electrochemically active surface area and degradation resistance by an average of 10‒25%.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

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.