Aqueous synthesis of Pt supported 3D flower-like Co3O4 nanostructures with thin nanosheets as building blocks. Issue 47 (2nd November 2015)

• Record Type: Journal Article
• Authors: Luo, Yunqing; Zhu, He; Luo, Yumin; Chang, Haibo; Zhong, Shuangling; Liu, Wencong; Wang, Minghui
• Is Part Of: CrystEngComm. Volume 17:Issue 47(2015)
• Page Start: 9007
• Page End: 9010
• Publication Date: 2015-11-02
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c5ce01770j
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Uniform and monodisperse Pt-supported 3D Co3 O4 nanoflowers with high porosity are successfully fabricated. The pre-addition of Pt NPs in the reaction solution plays a key role in hindering the self-stacking behaviour of nanosheets. Abstract : Uniform and monodisperse Pt supported Co3 O4 nanoflowers with thin nanosheets as building blocks are successfully synthesized via a simple hydrothermal strategy followed by a morphology-kept calcining treatment. The growth mechanism has been studied in-depth. The result has shown that such synthesis is highly sensitive to the concentration of urea, and more importantly, PVP andl -lysine which are also indispensable in that they are beneficial to the formation of sheet-like building blocks. In the following catalytic test for the CO oxidation reaction, the as-obtained Pt–Co3 O4 nanoflower sample has shown much higher catalytic performance compared with a Pt-commercial Co3 O4 sample.