Enhanced Electrocatalytic Activity of Platinized Carbon Electrode via NaBH4 Treatment
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yun, Changsuk | - |
dc.contributor.author | Hwang, Seongpil | - |
dc.date.accessioned | 2021-08-30T13:25:23Z | - |
dc.date.available | 2021-08-30T13:25:23Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-10 | - |
dc.identifier.issn | 1225-0112 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/52701 | - |
dc.description.abstract | The effect of a chemical pretreatment on the surface carbon was investigated using a scanning electron microscope (SEM) and electrochemical methods. Primitive carbon has a reducing power likely due to incompletely oxidized functional groups on the surface. We aim to control this reducing power by chemical treatment and apply for the spontaneous deposition of nanoparticles (NPs). Highly ordered pyrolytic graphite (HOPG) was initially treated with a reducing agent, NaBH4 or an oxidizing agent, KMnO4, for 5 min. Subsequently, the pretreated carbon was immersed in a platinum (Pt) precursor. Unexpectedly, SEM images showed that the reducing agent increased spontaneous PtNPs deposition while the oxidizing agent decreased Pt loading more as compared to that of using bare carbon. However, the amount of Pt on the carbon obviously decreased by NaBH4 treatment for 50 min. Secondly, spontaneous reduction on pretreated glassy carbon (GC) was investigated using the catalytic hydrogen evolution reaction (HER). GC electrode treated with NaBH4 for a short and long time showed small (onset potential: -640 mV vs. MSE) and large overpotential for the HER, respectively. Although the mechanism is unclear, the electrochemistry results correspond to the optical data. As a proof-of-concept, these results demonstrate that chemical treatments can be used to design the shapes and amounts of deposited catalytic metal on carbon by controlling the surface state. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN SOC INDUSTRIAL & ENGINEERING CHEMISTRY | - |
dc.subject | NANOPARTICLES | - |
dc.subject | REDUCTION | - |
dc.title | Enhanced Electrocatalytic Activity of Platinized Carbon Electrode via NaBH4 Treatment | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Hwang, Seongpil | - |
dc.identifier.doi | 10.14478/ace.2020.1075 | - |
dc.identifier.scopusid | 2-s2.0-85096209939 | - |
dc.identifier.wosid | 000592421500019 | - |
dc.identifier.bibliographicCitation | APPLIED CHEMISTRY FOR ENGINEERING, v.31, no.5, pp.581 - 584 | - |
dc.relation.isPartOf | APPLIED CHEMISTRY FOR ENGINEERING | - |
dc.citation.title | APPLIED CHEMISTRY FOR ENGINEERING | - |
dc.citation.volume | 31 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 581 | - |
dc.citation.endPage | 584 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002643399 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordAuthor | Chemical treatment | - |
dc.subject.keywordAuthor | Spontaneous reduction | - |
dc.subject.keywordAuthor | Catalytic reaction | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.