INFORMATION ON CATALYST SURFACE-STRUCTURE FROM CRYSTALLITE MORPHOLOGIES OBSERVED BY SCANNING ELECTRON-MICROSCOPY (SEM)

被引：14

作者：

PARKER, SC ^{[1
]}

LAWRENCE, PJ ^{[1
]}

FREEMAN, CM ^{[1
]}

LEVINE, SM ^{[1
]}

NEWSAM, JM ^{[1
]}

机构：

[1] BIOSYM TECHNOL INC,SAN DIEGO,CA 92121

来源：

CATALYSIS LETTERS | 1992年 / 15卷 / 1-2期

关键词：

COMPUTER SIMULATION; SEM; CATALYST MODELING; CR2O3; CRYSTAL MORPHOLOGY; SURFACE SEGREGATION; CHROMIA;

D O I：

10.1007/BF00770905

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 shapes of small crystals grown under equilibrium conditions are governed by the stabilities of their exposed faces. Computer simulation methods can be used to calculate surface energies and hence crystallite morphologies, illustrated by results for Cr2O3. Such calculations can include the effects of surface impurity segregation. Comparison of the resulting calculated crystal morphologies with those directly observed in the SEM thus provides a direct link between atomistic simulation and experiment.

引用

页码：123 / 131

页数：9

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