The Effects of Trace Anions on the Voltammetry of Single Crystal Gold Surfaces

reportActive / Technical Report | Accession Number: ADA211886 | Open PDF

Abstract:

The development of a new technique for mounting single crystals as a Hanging Meniscus Rotating Disk HMRD electrode has facilitated the study of the effect of traces of anionic impurities on the voltammetry of gold single crystals. It is shown that the cause of most of the differences between voltammetry curves reported in the literature for the same crystal face is the presence in the solution of low levels of C1 and Sulfate ions which were present in the original reagent. Variation of the rotation rate from 0-10,000 r.p.m. permitted a change of the effective concentrations of these impurities by a factor of 100. The resultant curves are compared to those produced by purposeful addition of these anions. Keywords Rotating disk electrode Hanging meniscus, Single crystal electrode, Anion impurities.

Author(s):
Cahan, B. D. ; Villullas, H. M. ; Yeager, E. B.
Author Organization(s):
CASE WESTERN RESERVE UNIV CLEVELAND OH
Descriptive Note:
Technical rept. 1988-1989
Supplementary Note:
DOI: 10.21236/ADA211886
Pagination:
0036

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-68
Contract/Grant Number(s):
N00014-83-K-0343
Project Number(s):
NR359-451
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_1.3.2_Personnel Management; JCA_1.2.7_Experimentation; JCA_5_Command and Control; JCA_5.3_Planning
Modernization Areas:
Space; Fully Networked C3
Communities of Interest:
Advanced Electronics
Descriptor(s):
*ANIONS, *VOLTAMMETRY, *GOLD, SURFACES, ELECTRODES, CHEMICAL AGENTS, LOW LEVEL, MOUNTS, DISKS, SULFATES, ROTATION, IMPURITIES, SINGLE CRYSTALS, IONS, RATES
Field(s)/Group(s):
Electrical and Electronic Equipment
Keyword(s):
WUNR359451
Report Date:
1989 Aug 18