研究目的
Investigating the enhanced photoelectrochemical performance of plasmonic Ag nanoparticles grafted ternary Ag/PaNi/NaNbO3 nanocomposite photoanode for photoelectrochemical water splitting.
研究成果
The ternary Ag/PaNi/NBO nanocomposite demonstrated significantly enhanced PEC water splitting activity, attributed to the plasmonic effect of Ag-NPs and the formation of a type-II heterojunction between PaNi and NBO-NFs. This resulted in improved light absorption, charge separation, and lower charge transfer resistance, making it a promising material for energy harvesting applications.
研究不足
The study focuses on the synthesis and PEC performance of ternary Ag/PaNi/NBO nanocomposite, with potential limitations in scalability, long-term stability under operational conditions, and the cost-effectiveness of Ag-NPs for large-scale applications.
1：Experimental Design and Method Selection:
The ternary Ag/PaNi/NBO nanocomposite was synthesized by chemically grafting Ag-NPs over binary PaNi/NBO nanocomposite. The photoelectrochemical (PEC) studies were performed in a three-electrode PEC cell with 0.5 M NaOH electrolyte solutions under UV-visible light illumination.
2：5 M NaOH electrolyte solutions under UV-visible light illumination.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: Samples included pristine NBO-NFs, binary PaNi/NBO, and ternary Ag/PaNi/NBO nanocomposite. Characterization was done using XRD, SEM, TEM, HRTEM, UV-vis spectroscopy, and PEC measurements.
3：List of Experimental Equipment and Materials:
Equipment included Rigaku Ultima IV diffractometer, SEM (TM3000, Hitachi), TEM (FEI Tecnai), UV-vis spectrophotometer (Perkin Elmer Lambda 1050), and photoelectrochemical workstation (Zehner Zennium, PP 211). Materials included aniline, HCl, (NH4)2S2O8, Nb2O5, NaOH, AgNO3, and NaBH
4：1). Materials included aniline, HCl, (NH4)2S2O8, Nb2O5, NaOH, AgNO3, and NaBHExperimental Procedures and Operational Workflow:
4.
4. Experimental Procedures and Operational Workflow: Synthesis involved hydrothermal growth of NBO-NFs, chemisorption for binary PaNi/NBO, and chemical solution method for ternary Ag/PaNi/NBO. PEC measurements included LSV, EIS, and IPCE under light illumination.
5：Data Analysis Methods:
Data analysis involved XRD pattern matching, SEM/TEM imaging, UV-vis absorption spectra analysis, and PEC performance evaluation through current density, charge transfer resistance, and IPCE measurements.
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