IMAGING OF SODIUM DECATUNGSTOCERATE (IV) BY SCANNING TUNNELING AND ATOMIC FORCE MICROSCOPY

被引:30
作者
KEITA, B [1 ]
CHAUVEAU, F [1 ]
THEOBALD, F [1 ]
BELANGER, D [1 ]
NADJO, L [1 ]
机构
[1] UNIV PARIS 11,ELECTROCHIM & PHOTOELECTROCHIM,CNRS,URA 1383,BATIMENT 420,F-91405 ORSAY,FRANCE
关键词
D O I
10.1016/0039-6028(92)90184-8
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
Sodium decatungstocerate (IV) Na6H2CeW10O36 . 30H2O has been selected as a representative example of discrete, molecular mineral material for comparison of the observations made by the AFM and STM techniques. The surface of the single crystal has been imaged with molecular resolution by the AFM, showing a regular array. The AFM images of the single crystal wet with solvent are less ordered but the dimension of individual molecules could also be measured. STM images of sodium decatungstocerate (IV) deposited from methanolic solution on highly oriented pyrolytic graphite (HOPG) give the same molecular dimension as determined from the AFM images. The close similarity of the AFM and STM images demonstrates the reproducibility of the observed structure and the good correlation between the two techniques in the present case.
引用
收藏
页码:271 / 280
页数:10
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