An in-situ X-ray diffraction study on the electrochemical formation of PtZn alloys on Pt(111) single crystal electrode

被引：5

作者：

Drnec, J. ^{[1
]}

Bizzotto, D. ^{[2
]}

Carla, F. ^{[1
]}

Fiala, R. ^{[3
]}

Sode, A. ^{[4
]}

Balmes, O. ^{[1
]}

Detlefs, B. ^{[1
]}

Dufrane, T. ^{[1
]}

Felici, R. ^{[1
]}

机构：

[1] ESRF, Grenoble, France

[2] Univ British Columbia, Dept Chem, AMPEL, Vancouver, BC, Canada

[3] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[4] Ruhr Univ Bochum, Bochum, Germany

来源：

APPLIED SURFACE SCIENCE | 2015年 / 354卷

关键词：

Pt; Zn; Alloy; XRD; XRR; Electrochemistry; OXYGEN REDUCTION REACTION; UNDERPOTENTIAL DEPOSITION UPD; GAMMA-BRASS TYPE; ZINC IONS; ELECTROCATALYSTS; ADSORPTION; STABILITY; PLATINUM; DISSOLUTION; ANIONS;

D O I：

10.1016/j.apsusc.2015.04.072

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrochemical formation and dissolution of the oxygen reduction reaction (ORR) PtZn catalyst on Pt(1 1 1) surface is followed by in-situ X-ray diffraction (XRD) and X-ray reflectivity (XRR) measurements. When the crystalline Pt surface is polarized to sufficiently negative potential values, with respect to an Ag/AgCl vertical bar KCl reference electrode, the electrodeposited zinc atoms diffuse into the bulk and characteristic features are observed in the X-ray patterns. The surface structure and composition during deposition and dissolution is determined from analysis of XRR curves and measurements of crystal truncation rods. Thin Zn-rich surface layer is present during the alloy formation while a Zn-depleted layer forms during dissolution. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：443 / 449

页数：7

共 50 条

[1] Dehydration and thermal stability of elpidite: An in-situ single crystal X-ray diffraction study
Cametti, Georgia
Armbruster, Thomas
Nagashima, Mariko
[J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2016, 227 : 81 - 87
[2] Structures of underpotentially deposited hg on AU(111): An electrochemical and in-situ x-ray diffraction study.
Li, J
Abruna, HD
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1996, 212 : 168 - COLL
[3] Structures of underpotentially deposited HG on AU(111): An electrochemical and in-situ X-ray diffraction study.
Li, J
Abruna, HD
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1996, 211 : 128 - COLL
[4] A combined in-situ X-ray spectroscopy/X-ray diffraction study of the mechanism of β-hematin formation
Harvey, I
Egan, TJ
[J]. JOURNAL OF INORGANIC BIOCHEMISTRY, 2001, 86 (01) : 252 - 252
[5] In-Situ observation of the oxygen nucleation in silicon with X-Ray single crystal diffraction
Will, Johannes
Groeschel, Alexander
Bergmann, Christoph
Magerl, Andreas
[J]. GETTERING AND DEFECT ENGINEERING IN SEMICONDUCTOR TECHNOLOGY XIV, 2011, 178-179 : 353 - 359
[6] In-situ X-ray diffraction study about uniaxial deformation behavior in a copper single crystal
Kim, KH
Koo, YM
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 335 (1-2): : 309 - 312
[7] Armstrongite at non ambient conditions: An in-situ high temperature single crystal X-ray diffraction study
Lacalamita, M.
Cametti, G.
Mesto, E.
Schingaro, E.
[J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2019, 275 : 180 - 190
[8] In-situ Measurement and Characterization of Crystal Growth by X-ray Diffraction
Beckers, Detlef
Munk, Peter
[J]. ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2011, 67 : C459 - C459
[9] In-situ X-ray diffraction snapshotting: Determination of the kinetics of a photodimerization within a single crystal
Hu, Fei-Long
Wang, Shu-Long
Lang, Jian-Ping
Abrahams, Brendan F.
[J]. SCIENTIFIC REPORTS, 2014, 4
[10] In-situ X-ray diffraction snapshotting: Determination of the kinetics of a photodimerization within a single crystal
Fei-Long Hu
Shu-Long Wang
Jian-Ping Lang
Brendan F. Abrahams
[J]. Scientific Reports, 4

← 1 2 3 4 5 →