研究目的
Investigating the synthesis and properties of novel metal chalcogenide superlattices based on unusual supertetrahedral TO2-InSnS clusters and their performance in the electrocatalytic oxygen reduction reaction.
研究成果
The introduction of tetravalent Sn4+ ions into the unusual supertetrahedral TO2-InS cluster led to the first observation of 3D superlattices based on TO2-InSnS clusters. These materials show good performance on the electrocatalytic oxygen reduction reaction, demonstrating the potential of this synthetic strategy for creating novel open-framework chalcogenides.
研究不足
The difficulty in balancing the highly negative charge of the TO2-InS cluster by the typically used templates limits the possibility of high-dimensional coassembly.
1：Experimental Design and Method Selection:
Solvothermal reaction was used to synthesize the title In?Sn?S superlattices.
2：Sample Selection and Data Sources:
Indium powder, stannous chloride, sulfur, 1,8-diazabicyclo[
3：0]-7-undecene (DBU), (R)-(?)-2-amino-1-butanol, and distilled water were used as starting materials. List of Experimental Equipment and Materials:
Single-crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), inductively coupled plasma atomic emission spectroscopy, and solid-state UV?vis diffuse-reflectance spectra were used for characterization.
4：Experimental Procedures and Operational Workflow:
The reaction was carried out at 190 °C for 7 days. The phase purities were confirmed by PXRD, and the weight loss was attributed to the carbonization of templated molecules in TGA experiments.
5：Data Analysis Methods:
The electron-transfer number and peroxide species yield were calculated from the Koutecky?Levich (K?L) equation.
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