Adsorption Properties of Individual Gold, Nickel, and Platinum Nanoparticles Deposited onto Silicon Surface

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-09-05 DOI:10.1134/S1061933X24600507

A. K. Gatin, S. A. Ozerin, P. K. Ignat’eva, V. A. Kharitonov, S. Yu. Sarvadii, M. V. Grishin

{"title":"Adsorption Properties of Individual Gold, Nickel, and Platinum Nanoparticles Deposited onto Silicon Surface","authors":"A. K. Gatin, S. A. Ozerin, P. K. Ignat’eva, V. A. Kharitonov, S. Yu. Sarvadii, M. V. Grishin","doi":"10.1134/S1061933X24600507","DOIUrl":null,"url":null,"abstract":"Gold, nickel and platinum nanoparticles (NPs) have been synthesized by impregnating single-crystalline silicon surface with precursors (aqueous solutions of corresponding salts). The morphologies of the formed nanostructured coatings have been studied, and the electronic structures of the synthesized NPs, as well as their adsorption properties with respect to H2, O2, and H2O, have been determined. It has been found that oxidized nickel NPs are reduced by molecular hydrogen, while pure platinum NPs are oxidized by molecular oxygen already at room temperature. This phenomenon has not been observed for particles deposited in a similar way onto highly oriented pyrolytic graphite. In addition, it has been revealed that water molecules are formed on gold NPs as a result of the interaction between H2 and O2 in two stages, in contrast to the three-stage process (sequential exposure in H2, O2, and H2), which is inherent in NPs deposited onto graphite. Differences in the adsorption properties of NPs of the same type deposited onto graphite and silicon are associated with the adsorption of a significant amount of the test gases on the latter.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1061933X24600507","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Gold, nickel and platinum nanoparticles (NPs) have been synthesized by impregnating single-crystalline silicon surface with precursors (aqueous solutions of corresponding salts). The morphologies of the formed nanostructured coatings have been studied, and the electronic structures of the synthesized NPs, as well as their adsorption properties with respect to H₂, O₂, and H₂O, have been determined. It has been found that oxidized nickel NPs are reduced by molecular hydrogen, while pure platinum NPs are oxidized by molecular oxygen already at room temperature. This phenomenon has not been observed for particles deposited in a similar way onto highly oriented pyrolytic graphite. In addition, it has been revealed that water molecules are formed on gold NPs as a result of the interaction between H₂ and O₂ in two stages, in contrast to the three-stage process (sequential exposure in H₂, O₂, and H₂), which is inherent in NPs deposited onto graphite. Differences in the adsorption properties of NPs of the same type deposited onto graphite and silicon are associated with the adsorption of a significant amount of the test gases on the latter.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

沉积在硅表面的单个金、镍和铂纳米颗粒的吸附特性

摘要通过在单晶硅表面浸渍前驱体（相应盐类的水溶液），合成了金、镍和铂纳米粒子（NPs）。对所形成的纳米结构涂层的形态进行了研究，并确定了所合成 NPs 的电子结构及其对 H2、O2 和 H2O 的吸附特性。研究发现，氧化的镍氮氧化物会被氢分子还原，而纯铂氮氧化物在室温下就会被氧分子氧化。这种现象在以类似方式沉积在高取向热解石墨上的颗粒中没有观察到。此外，研究还发现，由于 H2 和 O2 分两个阶段相互作用，水分子在金 NPs 上形成，这与沉积在石墨上的 NPs 所固有的三阶段过程（依次暴露在 H2、O2 和 H2 中）形成了鲜明对比。沉积在石墨和硅上的同类 NPs 在吸附特性上的差异与后者吸附了大量测试气体有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

期刊最新文献

Management of Cholesteatoma: Hearing Rehabilitation. Congenital Cholesteatoma. Evaluation of Cholesteatoma. Management of Cholesteatoma: Extension Beyond Middle Ear/Mastoid. Recidivism and Recurrence.