J. M. Shi^*, H. F. Zhang, H. C. Wang

Chalcogenide Letters, Vol.21, No.3, pp. 263-274, 2024, DOI:10.15251/CL.2024.213.263

Abstract This study presents the synthesis and characterization of 3D ZnO@MoS₂ nanocomposites, demonstrating their superior performance in photoelectrochemical applications. Employing a combination of hydrothermal and solvothermal methods, the research focuses on creating heterostructures with optimized interfacial characteristics. The ZnO@MoS₂ composites show a substantial increase in photocurrent density (1.02 mA/cm^²), compared to ZnO nanorods (0.32 mA/cm^²), underlining enhanced charge separation efficiency. In electrocatalytic hydrogen evolution, the heterostructures exhibit a lower onset potential (-175 mV vs RHE) and reduced Tafel slope (51 mV/dec), indicating improved catalytic activity over MoS₂ nanosheets. Additionally, the composites demonstrate a significant increase in electrochemical capacitance (398 More >

L. Yang^*, X. Q. Yuan, R. Y. Liu, R. X. Song, Q. W. Wang, W. Liang

Chalcogenide Letters, Vol.20, No.9, pp. 639-648, 2023, DOI:10.15251/CL.2023.209.639

Abstract In this paper, we report a facile method for the synthesis of MoS₂ nanosheet/ MoS₂ nanowire homostructures by growing MoS₂ nanosheets on the surface of MoS₂ nanowires. Benefiting from the uniform coating of MoS2 nanosheets on the surface of MoS2 nanowires, the MoS₂ nanosheet/ MoS₂ nanowire homostructures highly expose their electrocatalytic active edge sites and exhibit an enhanced electrocatalytic performance. It demonstrates a low overpotential of 107 mV at 10 mA/cm² and a small Tafel slope of 64 mV/dec in 0.5 M H₂SO₄. This work provides an inspiration for the design of efficient electrocatalysts with no stacking and aggregation More >

Xianglong Lu¹, Tianshui Yu¹, Hailing Wang¹, Ruichun Luo², Pan Liu², Songliu Yuan¹, Lihua Qian^1,*

Journal of Renewable Materials, Vol.8, No.2, pp. 133-151, 2020, DOI:10.32604/jrm.2020.08650 - 01 February 2020

Abstract Hydrogen evolution reaction (HER) in neutral medium suffers from slow kinetics as compared to that in alkaline or acidic conditions, owing to larger Ohmic loss and low proton concentration. Here we report that a self-supported nanoporous Au-SnO_x (NP Au-SnO_x) catalyst with gradient tin oxide surface could significantly enhance HER activity in neutral buffer solution (0.2 M PBS). The NP Au-SnO_x catalyst exhibits a low onset overpotential of 38 mV and a small Tafel slope of 79 mV dec⁻¹ . The current density of 10 mA cm⁻² is manifested at an overpotential as low as 148 mV, representing the More >