Published August 20, 2008 | Version v1
Journal article Metadata-only

Crystalline alloys produced by mercury electrodeposition on Pt(1 1 1) electrode at room temperature

Creators

  • 1. Department of Chemistry, National Central University, No. 300 Jungda Road, Jungli 32054, Taiwan (China)
  • 2. Department of Physics, National Central University, No. 300 Jungda Road, Jungli 32054, Taiwan (China)

Description

In situ scanning tunneling microscopy (STM) and reflection high energy electron diffraction (RHEED) were used to characterize mercury film electrodeposited onto a Pt(1 1 1) electrode at room temperature. Depending on the amount of Hg deposit, two different growth modes were observed. At low Hg coverage, crystalline (0 0 0 1)Hg adlayer accompanied by 30 deg.-rotated (1 1 1)-Pt patches was found on Pt(1 1 1). Deposition of multilayer Hg resulted in layered PtHg2 and PtHg4 amalgams, which grew epitaxially by aligning their (2 0 1) and (11-bar0) planes, respectively, parallel to the Pt(1 1 1) substrate. The preference of these epitaxial relationships for the electrochemically formed Pt-Hg intermetallic compounds on Pt(1 1 1) could result from minimization of the surface energy

Availability note (English)

Available from http://dx.doi.org/10.1016/j.electacta.2008.03.063

Additional details

Identifiers

DOI
10.1016/j.electacta.2008.03.063;
PII
S0013-4686(08)00440-4;

Publishing Information

Journal Title
Electrochimica Acta
Journal Volume
53
Journal Issue
20
Journal Page Range
p. 5961-5967
ISSN
0013-4686
CODEN
ELCAAV

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40001074
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ELECTROCHEMISTRY; ELECTRODEPOSITION; ELECTRON DIFFRACTION; EPITAXY; FILMS; INTERMETALLIC COMPOUNDS; MERCURY; MERCURY ALLOYS; PLATINUM; PLATINUM ALLOYS; SCANNING TUNNELING MICROSCOPY; SURFACE ENERGY; TEMPERATURE RANGE 0273-0400 K
Descriptors DEC
ALLOYS; CHEMISTRY; COHERENT SCATTERING; CRYSTAL GROWTH METHODS; DEPOSITION; DIFFRACTION; ELECTROLYSIS; ELEMENTS; ENERGY; FREE ENERGY; LYSIS; METALS; MICROSCOPY; PHYSICAL PROPERTIES; PLATINUM METAL ALLOYS; PLATINUM METALS; SCATTERING; SURFACE COATING; SURFACE PROPERTIES; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.