Issue 45, 2021

Temperature-dependent crystallization of Cu2O rhombic dodecahedra

Abstract

Size and shape uniformity of nanomaterials are extremely important for their applications in batteries, supercapacitors, catalysis, etc. In the crystallization process, finding proper synthesis conditions is necessary to have control over size dispersion, as well as crystal planes. In this work, we synthesized Cu2O rhombic dodecahedra (exposing 12 {110} planes) with size range from 1351 nm to 142 nm at a reaction temperature of 31–60 °C. The main parameters governing the size of Cu2O were the concentration of the precursor species and reduction reaction, which were affected by a given temperature. Results of crystallization experiments indicated that reaction and crystallization kinetics were mainly enhanced by raised temperature. Serving as lithium ion battery anodes, Cu2O rhombic dodecahedra showed higher capacity than cubes and octahedra. This work gives us a way of optimizing the temperature conditions for obtaining size uniformity of nanomaterials.

Graphical abstract: Temperature-dependent crystallization of Cu2O rhombic dodecahedra

Supplementary files

Article information

Article type
Paper
Submitted
24 Feb 2021
Accepted
15 Apr 2021
First published
15 Apr 2021

CrystEngComm, 2021,23, 7970-7977

Temperature-dependent crystallization of Cu2O rhombic dodecahedra

Z. Wang, W. Cao, K. Chen and D. Xue, CrystEngComm, 2021, 23, 7970 DOI: 10.1039/D1CE00273B

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