研究目的
To synthesize and grow single crystals of bis-thiourea nickel barium chloride, and study their structural, compositional, thermal, and optical properties for potential applications in non-linear optics.
研究成果
Bis-thiourea nickel barium chloride crystals were successfully synthesized and grown, exhibiting orthorhombic structure, confirmed elemental composition, functional groups via FTIR, high optical transparency, and thermal stability up to 170°C. The findings suggest potential for non-linear optical applications, with recommendations for further studies on NLO properties and optimization of growth techniques.
研究不足
The study is limited to the specific compound bis-thiourea nickel barium chloride; generalizability to other materials may be constrained. The crystal growth method (slow evaporation) may not be optimal for all conditions, and thermal stability is only up to 170°C, which might limit high-temperature applications.
1：Experimental Design and Method Selection:
The study involved synthesizing bis-thiourea nickel barium chloride using stoichiometric incorporation of reagents, followed by crystal growth via slow solvent evaporation technique. Various spectroscopic and thermal analysis methods were employed to characterize the crystals.
2：Sample Selection and Data Sources:
AR grade chemicals (nickel chloride, barium chloride, thiourea) were used. Crystals were grown from saturated solutions at room temperature.
3：List of Experimental Equipment and Materials:
Magnetic stirrer for homogenization, PHILIPS X'PERT MPD for powder XRD, ZEISS EVO 18 for EDAX, SHIMADZU 8400 FT-IR spectrometer for FTIR, and LINSEIS STA-PT 1600 for TGA/DTA.
4：Experimental Procedures and Operational Workflow:
Synthesis involved mixing and stirring reagents, heating to dryness, purification by recrystallization, and slow evaporation for crystal growth. Characterization included XRD for structure determination, EDAX for elemental analysis, FTIR for functional groups, and TGA/DTA for thermal stability.
5：Data Analysis Methods:
Powder-X program for unit cell parameter calculation, standard techniques for spectral and thermal data interpretation.
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