研究目的
To develop a new technique for comprehensively evaluating sulfurization performance of ZnO nanowires using in-situ TEM and resonant microcantilever.
研究成果
The developed method successfully evaluates the sulfurization performance of ZnO nanowires, indicating high reactivity to SO2 molecules and the formation of a novel core-shell nanowire structure of ZnO@ZnSO3.
研究不足
The study focuses on ZnO nanowires with a specific diameter (100 nm) and may not be directly applicable to other materials or sizes without further research.
1：Experimental Design and Method Selection:
The study employs in-situ TEM to observe the sulfurization process of ZnO nanowires under SO2-contained atmosphere and uses a resonant microcantilever for thermodynamic evaluation.
2：Sample Selection and Data Sources:
ZnO nanowires are synthesized via a hydrothermal method and characterized by TEM and SEM.
3：List of Experimental Equipment and Materials:
Includes a lab-made resonant microcantilever, FE-SEM (Hitachi S4800), TEM (FEI Tecnai G20), and a sample holder (Climate S3, DENS Solution).
4：Experimental Procedures and Operational Workflow:
ZnO nanowires are loaded onto the microcantilever, and frequency shift data are recorded for isotherm plotting. In-situ TEM is used to observe the reaction process.
5：Data Analysis Methods:
The enthalpy ΔH° is calculated based on Clausuis-Clapeyron equation from isotherms obtained at two temperatures.
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