High electron transfer of TiO₂ nanorod@carbon layer supported flower-like WS₂ nanosheets for triiodide electrocatalytic reduction

• Main Authors: Wang, Wei, Liu, Tianyu, Ding, Chuan, Wang, Min, Bai, Jirong, Zhang, Jintao, Bi, Hengchang, Sun, Yueming, Wang, Yuqiao
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Materials; Catalytic; Multidimensional Nanostructure
• Online Access: https://hdl.handle.net/10356/160476
• Institution: Nanyang Technological University

WS2-based nanomaterials have been extensively studied due to their unique catalytic properties. However, it is still a great challenge to prepare WS2-based electrocatalysts with both maximally active edge sites exposure and high electronic conductivity. In this work, we have engineered a 1D-2D multidimensional nanostructured TiO2 nanorod@carbon layer supported flower-like WS2 nanosheets (TNRs@C@WS2) electrocatalyst with abundant exposed active edge sites as well as high electron transfer abilities. The TNRs@C@WS2 was explored as a good catalyst for the triiodide reduction reaction. The assembled dye-sensitized solar cell achieves a high photoelectric conversion efficiency (7.15%) and comparable to that (7.18%) of Pt. This unique 1D-2D multidimensional nanostructure may open up new opportunities for a variety of applications in clean energy and catalysis.