3D CdS/ZnO/Pt/WO3 nanostructure electrode for enhancing photoelectrochemical water splitting
Vol. 130 No. 1C (2021), Original Article
Vol. 130 No. 1C (2021)

3D CdS/ZnO/Pt/WO3 nanostructure electrode for enhancing photoelectrochemical water splitting

Original Article
https://doi.org/10.26459/hueunijns.v130i1C.5887
Published 2021-09-30
Truong Thi Hien
Institute of Theoretical and Applied Research, Duy Tan University, 1 Phung Chi Kien St., Cau Giay, Hanoi, Vietnam
Vu Thi Bich*
Institute of Theoretical and Applied Research, Duy Tan University, 1 Phung Chi Kien St., Cau Giay, Hanoi, Vietnam
Phan Thi Binh
Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay, Hanoi, Vietnam
Mai Thi Thanh Thuy
Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay, Hanoi, Vietnam
Man Minh Tan
Institute of Theoretical and Applied Research, Duy Tan University, 1 Phung Chi Kien St., Cau Giay, Hanoi, Vietnam
Nguyen Tien Dai
Faculty of Environmental and Chemical Engineering, Duy Tan University, 254 Nguyen Van Linh St., Thanh Khe, Da Nang, Vietnam
Tran Thi Trang
Faculty of Chemical and Environmental Technology, Hung Yen University of Technology and Education, Khoai Chau, Hung Yen, Vietnam
Chu Thi Thu Hien
Bộ môn Hóa học, Khoa Vật liệu Xây dựng, Trường Đại học Xây dựng, 55 Giải Phóng, Đồng Tâm, Hà Nội, Việt Nam
Tran Thi Minh Nguyet
Faculty of Buiding Materials, National University of Civil Engineering, 55 Giai Phong St., Dong Tam, Hanoi, Vietnam
Nguyen Manh Hung
Department of Materials Science and Engineering, Faculty of Machenical Engineering, Le Quy Don Technical University, 236 Hoang Quoc Viet St., Cau Giay, Hanoi, Vietnam
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 2024Nov.14];130(1C):31-4. Available from: http://222.255.146.83/index.php/hujos-ns/article/view/5887
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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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