Rapid and template-free synthesis of Cu2O truncated octahedra using glucose as green reducing agent

• Published in: Materials letters Vol. 210; pp. 31 - 34
• Main Authors: Han, Xingrong, Liao, Fan, Zhang, Yanfei, Yuan, Zhongyun, Chen, Huiyu, Xu, Chunju
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2018
• Subjects: Cu2O; Electronic materials; Microstructures; Semiconductors; Electronic materials; Microstructures; Semiconductors; Cu2O
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2017.08.127

Uniform crystalline Cu2O truncated octahedra constructed by 8 hexagonal {111} surfaces and 6 square {100} surfaces were quickly synthesized in high yield with glucose served as an environmental-friendly reducing reagent, and no template or surfactant was employed during the synthetic procedure. With reaction time prolonging, the {100} surfaces were selectively etched with a hole on each facet, and the etching would become more serious. [Display omitted] •Cu2O truncated octahedra were prepared at 75°C for 10min.•Glucose served as a green reducing agent.•No template or surfactant was used.•The {100} surfaces were selectively etched with reaction time prolonging. Uniform crystalline Cu2O truncated octahedra constructed by 8 hexagonal {111} surfaces and 6 square {100} surfaces were quickly synthesized in high yield with glucose served as an environmental-friendly reducing reagent, and no template or surfactant was employed during the synthetic procedure. With reaction time prolonging, the {100} surfaces were selectively etched with a hole on each facet, and the hole would become bigger to form surface pits finally. The X-ray powder diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) characterizations indicated that these Cu2O truncated octahedral possessed cubic phase with very high phase purity. This simple one-pot synthetic route could provide a good starting point for the research of shape-dependent catalytic properties of other materials.