Quantitative In Situ Differential Reflectance Spectroscopy Analysis of Polycrystalline Platinum Oxidation in an Aqueous Acidic Electrolyte

W2141457237 · 수집 2026-10-04 18:12:21

T10030 Analytical Chemistry and Sensors

CoT 라벨링

라벨링 전

PDF 파일

저장된 PDF 없음

기본 정보

DOI 제목 발행년도 저널 URL 페이지 열기 PDF URL PDF 열기 발행기관 피인용수 라이선스

추가 정보 초록

A method is herein described that allows the coverage of the two forms of oxide believed to form on polycrystalline Pt, Pt(poly), surfaces in aqueous solutions to be determined based on the analysis of in situ differential reflectance spectroscopy, ΔR/R, and voltammetric data recorded simultaneously. The model employed assumes ΔR/R can be expressed as the sum of contributions due to each type of surface site, i, represented by the product of their potential dependent coverage, θi(E), and a linear function of E obtained empirically. Values of θi(E) for the unoxidized and oxidized sites are calculated by solving a system of three non-linear equations that relate θi(E) to the charge associated with the formation of the oxide layer based on coulometric analyses and accepted values for the number of electrons transferred for each of the oxides. Data collected for Pt(poly) electrodes in aqueous 0.1 M HClO4 was found to be consistent with the coexistence of the two forms of Pt oxide and unoxidized sites on the surface over a potential range extending from ca. 1.0 to 1.25 V.

본문

PDF 본문 자동 추출 실패: [download] not a PDF (Content-Type: text/html, final URL: https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=1da91b60-2e58-4385-be9b-13d514890060&ssb=91174267834&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1149%2F2.0061509eel%2Fpdf&ssi=d5cd3b9c-cnvj-4e01-be99-e4c5df1b2616&ssk=botmanager_support@radware.com&ssm=041431856939881114846180444017406&ssn=dd5f1465fc9fa7ec4d93bf3487b2e8387e6d0365ea35-1dfa-4a77-95012a&sso=d8e0df5b-51d081f0c929de54a58651e93ba58673a60bdf875e994605&ssp=36964130271791109915179117538579802&ssq=67621362061237764170310984627378566992692&ssr=MjExLjE4OC41NS4xMTY=&sst=Mozilla/5.0%20(X11;%20Linux%20x86_64)%20AppleWebKit/537.36%20(KHTML,%20like%20Gecko)%20Chrome/126.0%20Safari/537.36%20ai4s-collector/1.0&ssu=&ssv=&ssw=&ssx=eyJ1em14IjoiN2ZjMDAwODk0ZjU1OGQtZTQ5ZC00MGY4LWIyNWItMTdkZDc5NzIyZjcwMS0xNzkxMTEwOTg0NzIwOTYyNzM5NS0wMDc0MmJjOThlNzFjYjIxNmZmNDg0IiwiX191em1mIjoiN2Y5MDAwMDM2NWVhMzUtMWRmYS00YTc3LTlmNWItNTFkMDgxZjBjOTI5MS0xNzkxMTEwOTg0NzIwOTYyNzM5N (2026-10-04 22:30:12)

활용가능성

이력 0건

아직 편집 이력이 없습니다. 저장할 때마다 이전 내용이 여기에 백업됩니다.