Efficient visible-light-driven hydrogen evolution with MoS<sub>2</sub>/TiO<sub>2</sub> heterojunction photoanodes on porous stainless steel mesh
Creators
- 1. Korea Inst Sci & Technol KIST, Inst Adv Composite Mat, Chudongro 92, Bongdong Eup 565905, Jeonbuk, South Korea
- 2. Jeonbuk Natl Univ, Res Inst Phys & Chem, Dept Phys, Jeonju 54896, South Korea
- 3. Istanbul Tech Univ ITU, Energy Inst, TR-34467 Maslak, Istanbul, Turkiye
- 4. Jeonbuk Natl Univ, Res Ctr Adv Mat Dev RCAMD, Sch Adv Mat Engn, Baekje Daero 567, Jeonju 54896, South Korea
- 5. Korea Inst Sci & Technol, Postsilicon Semicond Inst, Ctr Optoelect Mat & Devices, Hwarangro 14 Gil 5, Seoul 02792, South Korea
Description
In this study, a MoS2/TiO2 composite photoanode was fabricated on an SSM substrate via sputtering and hydrothermal synthesis, forming an efficient heterojunction structure to enhance photoelectrochemical (PEC) performances. Structural and optical characterizations confirmed the successful integration of MoS2 and TiO2, leading to enhanced visible light absorption, improved charge transport, and increased catalytic activity. Photoelectrochemical measurements revealed a photocurrent density of 102.21 mu A/cm2 at 0.91 VRHE, a 15.4 % improvement over TiO2/SSM, along with a 53.7 % increase in applied-bias photon-to-current efficiency (ABPE). Electrochemical impedance spectroscopy indicates a significantly reduction in charge transfer resistance, and hydrogen generation tests showed a 2.7-fold increase compared to TiO2/SSM. These results highlight the synergistic effects of MoS2 and TiO2 combined with the structural advantages of SSM, providing a promising strategy for efficient solar-driven hydrogen production.
Files
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Files
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