Ahmad Khalf Alkhawaldeh, Iyad Y. Natsheh, Majd M. Alsaleh, Mohamad Shatnawi, Wesam Shahrour, Majdi M. Majdalawi, Ali Ata Alsarhan
{"title":"Development of the sensitivity of nanostructured platinum electrodes by effect modified by adatoms (As, Sb, Pb and Sn) for electrocatalytic properties","authors":"Ahmad Khalf Alkhawaldeh, Iyad Y. Natsheh, Majd M. Alsaleh, Mohamad Shatnawi, Wesam Shahrour, Majdi M. Majdalawi, Ali Ata Alsarhan","doi":"10.1007/s13738-024-03064-0","DOIUrl":null,"url":null,"abstract":"<div><p>Adatoms on metallic surfaces appear to be inexpensive reversible surface alloys. Platinum nanostructured electrode (PtNPs) opens up new avenues in electrochemistry. The prepared platinum nanostructured on a tantalum substrate using a square wave potential regime was permitted to maintain an open circuit via a 1 × 10<sup>–3</sup> M solution that included an ion of one element Sb, Sn, As, or Pb. As a result, the closeness of the permanently adsorbed adatoms on the previously described Pt-nanostructured electrodes was proved by energy-dispersive X-ray spectroscopy, cyclic voltammetry and scanning electron microscopy. The electrocatalytic properties of prepared adatoms on new platinum nanostructures deposited on tantalum supporting structures were tested by the examination of electrooxidation of formic acid and methanol in 0.5 M H<sub>2</sub>SO<sub>4</sub>. The results of the previously mentioned tools showed the electrocatalytic characteristics of the nanoparticles ready exterior were improved by the adatoms of the four systems with varying levels of progress. The optimum conditions were set at 100 Hz frequency, − 0.4 V, and 0.0 V below the square wave limits in addition, above at amplitude 0.4 V, to prepare nanostructured platinum deposits. The current peak (<i>I</i><sub>p</sub>) and the current of chronoamperometric (<i>I</i><sub>CA</sub>) of HCOOH solution oxidation on Pt-nanostructured Sn<sub>ad</sub> (47 mAcm<sup>−2</sup>, 130 µAcm<sup>−2</sup>) have higher values than As<sub>ad</sub> (20 mAcm<sup>−2</sup>, 55 µAcm<sup>−2</sup>), Sb<sub>ad</sub> (34 mAcm<sup>−2</sup>, 100 µAcm<sup>−2</sup>) and Pb<sub>ad</sub> (24 mAcm<sup>−2</sup>, 30µAcm<sup>−2</sup>)-Pt electrode.</p></div>","PeriodicalId":676,"journal":{"name":"Journal of the Iranian Chemical Society","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Iranian Chemical Society","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s13738-024-03064-0","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Adatoms on metallic surfaces appear to be inexpensive reversible surface alloys. Platinum nanostructured electrode (PtNPs) opens up new avenues in electrochemistry. The prepared platinum nanostructured on a tantalum substrate using a square wave potential regime was permitted to maintain an open circuit via a 1 × 10–3 M solution that included an ion of one element Sb, Sn, As, or Pb. As a result, the closeness of the permanently adsorbed adatoms on the previously described Pt-nanostructured electrodes was proved by energy-dispersive X-ray spectroscopy, cyclic voltammetry and scanning electron microscopy. The electrocatalytic properties of prepared adatoms on new platinum nanostructures deposited on tantalum supporting structures were tested by the examination of electrooxidation of formic acid and methanol in 0.5 M H2SO4. The results of the previously mentioned tools showed the electrocatalytic characteristics of the nanoparticles ready exterior were improved by the adatoms of the four systems with varying levels of progress. The optimum conditions were set at 100 Hz frequency, − 0.4 V, and 0.0 V below the square wave limits in addition, above at amplitude 0.4 V, to prepare nanostructured platinum deposits. The current peak (Ip) and the current of chronoamperometric (ICA) of HCOOH solution oxidation on Pt-nanostructured Snad (47 mAcm−2, 130 µAcm−2) have higher values than Asad (20 mAcm−2, 55 µAcm−2), Sbad (34 mAcm−2, 100 µAcm−2) and Pbad (24 mAcm−2, 30µAcm−2)-Pt electrode.
期刊介绍:
JICS is an international journal covering general fields of chemistry. JICS welcomes high quality original papers in English dealing with experimental, theoretical and applied research related to all branches of chemistry. These include the fields of analytical, inorganic, organic and physical chemistry as well as the chemical biology area. Review articles discussing specific areas of chemistry of current chemical or biological importance are also published. JICS ensures visibility of your research results to a worldwide audience in science. You are kindly invited to submit your manuscript to the Editor-in-Chief or Regional Editor. All contributions in the form of original papers or short communications will be peer reviewed and published free of charge after acceptance.