Morphology-modulated Synthesis of Cu2O Hexapods

Journal of the Korean Chemical Society

article

Young Sik Cho¹  Hyun Woo Lee¹  Young Duk Huh¹ 

[1] Department of Chemistry, Dankook University

关键词: Microstructure;    Crystal morphology modulation;    Crystal growth mechanism;    Cu2O hexapods;   

DOI  :  10.5012/jkcs.2021.65.1.58

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The development of morphology-controlled synthesis methods is an important issue in inorganic materials science.1,2 Because copper(I) oxide (Cu2O) has a cubic crystal system, it exhibits various morphologies.3,4 Cu2O is a nonstoichiometric defect p-type semiconductor with a direct bandgap of 2.2 eV and has been used as a photocatalyst for the degradation of dye molecules and for water splitting.5−7 Simple closed morphologies, such as cubic, octahedral, and rhombic dodecahedral morphologies, are formed in the crystal habit to minimize the total surface free energy under thermodynamic equilibrium.8−10 Cubic, octahedral, and rhombic dodecahedral Cu2O microcrystals have six {100} facets, eight {111} facets, and twelve {110} facets, respectively.11−15 Because, the {100} facets of Cu2O microcrystals have different atomic arrangements from those of the {111} and {110} facets, the photocatalytic activities of Cu2O microcrystals are strongly dependent on the morphology of the Cu2O microcrystals.

【 授权许可】

Unknown