3D CdS/ZnO/Pt/WO3 nanostructure electrode for enhancing photoelectrochemical water splitting
PDF (Vietnamese)

Keywords

cấu trúc 3D
thanh nano ZnO/CdS cấu trúc phân lớp dị thể
tấm WO3
tách nước quang điện hóa
sản xuất hydro 3D structure
heterojunction layers
CdS/ZnO/Pt/WO3 electrode
hydrogen production
photoelectrochemical cell

How to Cite

1.
Hiên TT, Vũ TB, Phan TB, Mai TTT, Mẫn MT, Nguyễn T Đại, Trần TT, Chu TTH, Trần TMN, Nguyễn MH. 3D CdS/ZnO/Pt/WO3 nanostructure electrode for enhancing photoelectrochemical water splitting. hueuni-jns [Internet]. 2021Sep.30 [cited 2021Oct.23];130(1C):31-4. Available from: http://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/5887

Abstract

In this work, we report the synthesis of the hierarchical structure of a CdS/ZnO/Pt/WO3 electrode for photoeletrochemical water splitting application. The photoanode was synthesized via the hydrothermal and atomic layer deposition methods. The morphological and structural properties of CdS/ZnO/Pt/WO3 nanoplates were carefully investigated by using SEM, TEM, and XRD techniques. The CdS/ZnO/Pt/WO3-based photoelectrode has a photocurrent density of 8,5 mA·cm-2 and a photoconversion efficiency of 7.9% at a supplied potential of –0,85 V in a 0.5 M Na2S solution. This photocurrent density is twice higher than that of the CdS/ZnO/FTO electrode. Due to built-in potential and efficiently collecting the photo-carriers generated from the ZnO/CdS heterojunction under illumination, the CdS/ZnO/Pt/WO3 electrode exhibits enhanced performance of the photoelectrochemical cell. This is a promising approach to the synthesis of heterojunction layers of semiconductor together with nanostructures for fabricating photoelectrodes of the photoelectrochemical cell to enhance hydrogen production efficiency.

https://doi.org/10.26459/hueunijns.v130i1C.5887
PDF (Vietnamese)

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