开发高效阳极电催化剂:用于乙醇高级电催化的双金属钯镍气凝胶三维互连网络

IF 4.1 3区 化学 Q1 CHEMISTRY, ANALYTICAL
Masoud Rafigh Esmaeilzaei, Hamideh Saravani, Ahmad Reza Abbasian
{"title":"开发高效阳极电催化剂:用于乙醇高级电催化的双金属钯镍气凝胶三维互连网络","authors":"Masoud Rafigh Esmaeilzaei,&nbsp;Hamideh Saravani,&nbsp;Ahmad Reza Abbasian","doi":"10.1016/j.jelechem.2024.118810","DOIUrl":null,"url":null,"abstract":"<div><div>This paper introduces a valuable and easy strategy for connecting metallic nanoparticles to assemble a three-dimensional (3D) network of bimetallic palladium-nickel aerogel. This research provides several unique advantages (e.g., facile, surfactant-free, one-pot, and fast) without any chemical destabilizer compounds. The 3D metallic superstructure is formed during the reduction of Ni<sup>2+</sup> and Pd<sup>2+</sup> ions by adding NaBH<sub>4</sub>, followed by CO<sub>2</sub> supercritical drying. Additionally, the gelation kinetics are explored by raising the temperature to create an efficient anisotropic atmosphere to assemble the 3D Pd-Ni hydrogels. This study demonstrated that the alteration in anisotropic conditions affects the formation of a 3D hydrogel. The production of a 3D network assembled by the extended nanowires with high porosity and plenty of open pores is confirmed by various analyses. The Pd-Ni aerogel is employed as a self-supported electrocatalyst for decomposing EtOH fuel and reflects the more prominent electrocatalytic activity relative to Pd/C. The existence of nickel will facilitate the adsorption of hydroxyl groups on the surface of the resulting aerogel. These adsorbed hydroxyls react with the generated intermediates and release the blocked active sites by carbonaceous intermediates, thereby affecting efficiently the ethanol oxidation.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"976 ","pages":"Article 118810"},"PeriodicalIF":4.1000,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Developing efficient anodic electrocatalyst: Three-dimensional interconnected network of bimetallic Pd–Ni aerogel for advanced electrocatalysis of ethanol\",\"authors\":\"Masoud Rafigh Esmaeilzaei,&nbsp;Hamideh Saravani,&nbsp;Ahmad Reza Abbasian\",\"doi\":\"10.1016/j.jelechem.2024.118810\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This paper introduces a valuable and easy strategy for connecting metallic nanoparticles to assemble a three-dimensional (3D) network of bimetallic palladium-nickel aerogel. This research provides several unique advantages (e.g., facile, surfactant-free, one-pot, and fast) without any chemical destabilizer compounds. The 3D metallic superstructure is formed during the reduction of Ni<sup>2+</sup> and Pd<sup>2+</sup> ions by adding NaBH<sub>4</sub>, followed by CO<sub>2</sub> supercritical drying. Additionally, the gelation kinetics are explored by raising the temperature to create an efficient anisotropic atmosphere to assemble the 3D Pd-Ni hydrogels. This study demonstrated that the alteration in anisotropic conditions affects the formation of a 3D hydrogel. The production of a 3D network assembled by the extended nanowires with high porosity and plenty of open pores is confirmed by various analyses. The Pd-Ni aerogel is employed as a self-supported electrocatalyst for decomposing EtOH fuel and reflects the more prominent electrocatalytic activity relative to Pd/C. The existence of nickel will facilitate the adsorption of hydroxyl groups on the surface of the resulting aerogel. These adsorbed hydroxyls react with the generated intermediates and release the blocked active sites by carbonaceous intermediates, thereby affecting efficiently the ethanol oxidation.</div></div>\",\"PeriodicalId\":355,\"journal\":{\"name\":\"Journal of Electroanalytical Chemistry\",\"volume\":\"976 \",\"pages\":\"Article 118810\"},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-11-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electroanalytical Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1572665724007884\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electroanalytical Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1572665724007884","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0

摘要

本文介绍了一种既有价值又简便的金属纳米粒子连接策略,用于组装双金属钯镍气凝胶三维(3D)网络。这项研究具有一些独特的优势(如简便、无表面活性剂、一锅制、快速),且不含任何化学失稳化合物。在加入 NaBH4 还原 Ni2+ 和 Pd2+ 离子的过程中形成三维金属上层结构,然后进行二氧化碳超临界干燥。此外,还通过升高温度探索了凝胶化动力学,以创造一种高效的各向异性气氛来组装三维钯镍水凝胶。这项研究表明,各向异性条件的改变会影响三维水凝胶的形成。各种分析证实,延伸纳米线组装的三维网络具有高孔隙率和大量开放孔隙。钯镍气凝胶被用作分解乙醇燃料的自支撑电催化剂,与钯/镍相比,其电催化活性更为突出。镍的存在将促进羟基在气凝胶表面的吸附。这些被吸附的羟基会与生成的中间产物发生反应,释放被碳质中间产物阻塞的活性位点,从而有效地影响乙醇氧化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Developing efficient anodic electrocatalyst: Three-dimensional interconnected network of bimetallic Pd–Ni aerogel for advanced electrocatalysis of ethanol

Developing efficient anodic electrocatalyst: Three-dimensional interconnected network of bimetallic Pd–Ni aerogel for advanced electrocatalysis of ethanol
This paper introduces a valuable and easy strategy for connecting metallic nanoparticles to assemble a three-dimensional (3D) network of bimetallic palladium-nickel aerogel. This research provides several unique advantages (e.g., facile, surfactant-free, one-pot, and fast) without any chemical destabilizer compounds. The 3D metallic superstructure is formed during the reduction of Ni2+ and Pd2+ ions by adding NaBH4, followed by CO2 supercritical drying. Additionally, the gelation kinetics are explored by raising the temperature to create an efficient anisotropic atmosphere to assemble the 3D Pd-Ni hydrogels. This study demonstrated that the alteration in anisotropic conditions affects the formation of a 3D hydrogel. The production of a 3D network assembled by the extended nanowires with high porosity and plenty of open pores is confirmed by various analyses. The Pd-Ni aerogel is employed as a self-supported electrocatalyst for decomposing EtOH fuel and reflects the more prominent electrocatalytic activity relative to Pd/C. The existence of nickel will facilitate the adsorption of hydroxyl groups on the surface of the resulting aerogel. These adsorbed hydroxyls react with the generated intermediates and release the blocked active sites by carbonaceous intermediates, thereby affecting efficiently the ethanol oxidation.
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
CiteScore
7.80
自引率
6.70%
发文量
912
审稿时长
2.4 months
期刊介绍: The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信