Issue 37, 2023

Facile synthesis of hierarchical CdS nanoflowers for efficient piezocatalytic hydrogen evolution

Abstract

Piezocatalytic hydrogen evolution has emerged as a promising field for the collection and utilization of mechanical energy, as well as for generating sustainable energy throughout the day. Hexagonal CdS, an established semiconductor photocatalyst, has been widely investigated for its ability to split water into H2. However, its piezocatalytic performance has received less attention, and the relationship between its structure and piezocatalytic activity remains unclear. In this study, we prepared 3D ultrathin CdS nanoflowers with high voltage electrical response and low impedance. In pure water, without the use of any cocatalyst, CdS exhibited a piezoelectric catalytic hydrogen production rate of 1.46 mmol h−1 g−1, which was three times higher than that of CdS nanospheres (0.46 mmol h−1 g−1). Furthermore, the value-added oxidation product H2O2 was produced during the process of piezoelectric catalysis. These findings provide new insights for the design of high-efficiency piezoelectric catalytic hydrogen production.

Graphical abstract: Facile synthesis of hierarchical CdS nanoflowers for efficient piezocatalytic hydrogen evolution

Supplementary files

Article information

Article type
Paper
Submitted
21 Jul 2023
Accepted
04 Sep 2023
First published
07 Sep 2023

Dalton Trans., 2023,52, 13426-13434

Facile synthesis of hierarchical CdS nanoflowers for efficient piezocatalytic hydrogen evolution

X. Lu, T. Shan, L. Deng, M. Li, X. Pan, X. Yang, X. Zhao and M. Yang, Dalton Trans., 2023, 52, 13426 DOI: 10.1039/D3DT02328A

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