STM IDENTIFICATION OF SILVER OLIGOMER CLUSTERS PREPARED BY RADIOLYSIS IN AQUEOUS-SOLUTION

被引：46

作者：

REMITA, S ^{[1
]}

ORTS, JM ^{[1
]}

FELIU, JM ^{[1
]}

MOSTAFAVI, M ^{[1
]}

DELCOURT, MO ^{[1
]}

机构：

[1] UNIV PARIS 11,PHYSICOCHEM RAYONNEMENTS LAB,CNRS,URA 75,F-91405 ORSAY,FRANCE

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 218卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(93)E1451-L

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：

Silver oligomers prepared by radiolysis in aqueous solution in the presence of polyacrylate and absorbing at approximate to 290 nm have been imaged by STM in air after being deposited on a HOPG surface. Clear images with atomic resolution are observed, showing flat clusters of 0.7 nm. Each cluster contains seven (or possibly eight) atoms corresponding to the stoichiometry (Ag-4+m)(m+), m=3 (or 4), for the clusters in aqueous solution. No interference due to the polyanion (present in the solution as a stabilizing agent) is found for adsorbate densities.

引用

页码：115 / 121

页数：7

共 14 条

[1] DIRECT IMAGING OF AU AN AG CLUSTERS BY SCANNING TUNNELING MICROSCOPY [J].

ABRAHAM, DW ;

SATTLER, K ;

GANZ, E ;

MAMIN, HJ ;

THOMSON, RE ;

CLARKE, J .

APPLIED PHYSICS LETTERS, 1986, 49 (14) :853-855

[2]

BERRY RS, 1993, Z PHYSIK D S, V26

[3] SCANNING TUNNELING MICROSCOPY OF SILVER, GOLD, AND ALUMINUM MONOMERS AND SMALL CLUSTERS ON GRAPHITE [J].

GANZ, E ;

SATTLER, K ;

CLARKE, J .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1988, 6 (02) :419-423

[4] STUDY OF AG+/PAA (POLYACRYLIC-ACID) AND AG0/PAA AQUEOUS SYSTEMS AT EQUILIBRIUM [J].

KEGHOUCHE, N ;

MOSTAFAVI, M ;

DELCOURT, MO .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1991, 88 (06) :855-863

[5]

KHATOURI J, 1993, Z PHYS D ATOM MOL CL, V26, pS82, DOI 10.1007/BF01425625

[6] INVESTIGATION BY SCANNING TUNNELING MICROSCOPY OF THE EFFECT OF PREPARATIVE VARIABLES ON THE DEGREE OF AGGREGATION OF PLATINUM ON HIGHLY ORIENTED PYROLYTIC-GRAPHITE [J].

LEE, S ;

PERMANA, H ;

NG, KYS .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1992, 10 (02) :561-565

[7] STRUCTURE OF SILVER MICROCLUSTERS [J].

MONTANO, PA ;

ZHAO, J ;

RAMANATHAN, M ;

SHENOY, GK ;

SCHULZE, W ;

URBAN, J .

CHEMICAL PHYSICS LETTERS, 1989, 164 (2-3) :126-130

[8] COMPLEXATION OF SILVER CLUSTERS OF A FEW ATOMS BY A POLYANION IN AQUEOUS-SOLUTION - PH EFFECT CORRELATED TO STRUCTURAL-CHANGES [J].

MOSTAFAVI, M ;

KEGHOUCHE, N ;

DELCOURT, MO .

CHEMICAL PHYSICS LETTERS, 1990, 169 (1-2) :81-84

[9]

MOSTAFAVI M, 1992, RADIAT PHYS CHEM, V40, P445

[10] STUDY OF THE INTERACTION BETWEEN POLYACRYLATE AND SILVER OLIGOMER CLUSTERS [J].

MOSTAFAVI, M ;

DELCOURT, MO ;

PICQ, G .

RADIATION PHYSICS AND CHEMISTRY, 1993, 41 (03) :453-459

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