Shape-Controlled Syntheses and Redox Activity Differences of Cu2O Particles as an Undergraduate Laboratory Experiment

被引：8

作者：

Song, Limin ^{[1
]}

Huang, Yubi ^{[1
]}

Dong, Jianxun ^{[2
]}

Zhu, Baolin ^{[1
]}

Huang, Weiping ^{[1
,2
]}

机构：

[1] Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China

[2] State Key Lab Coking Coal Exploitat & Comprehens, Pingdingshan 467000, Peoples R China

来源：

JOURNAL OF CHEMICAL EDUCATION | 2022年 / 99卷 / 04期

关键词：

Upper-Division Undergraduate; Interdisciplinary; Multidisciplinary; Inorganic Chemistry; Hands-On Learning; Manipulative; Materials Science; Oxidation; Reduction; NANOSTRUCTURES; OXIDATION; NANOCUBES; NANORODS;

D O I：

10.1021/acs.jchemed.1c01032

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Morphology-dependent properties are significant in chemistry and material sciences. This laboratory experiment,designed for upper-division undergraduates in chemistry and related majors, emphasizes the concepts of the shape-controlled synthesis of crystal particles and the influences of crystal particlemorphologies on their reaction performances. Cu2O particles with different morphologies, cubic and truncated octahedral, were synthesized under mild conditions. The resulting products were examined with XRD and SEM to characterize their phasecomponents and surface morphologies. The activity differencesof these products in the reduction of ferric thiocyanate solution,K(n-3)[Fe(SCN)n], were measured and compared. The truncatedoctahedral Cu2O particles showed higher activity than the cubicones, which is attributed to differences in their shapes and exposed facets. This experiment can help undergraduates realize that the performances of crystal particles are related not only to their structures and dimensions but also to their morphologies

引用

页码：1788 / 1793

页数：6

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