Self-assembling 1D core/shell microrods by the introduction of additives: a one-pot and shell-tunable method

Area of Science:

• Materials Science
• Nanotechnology
• Crystallography

Background:

• Developing novel one-dimensional nanostructures is crucial for advanced functional materials.
• Controlling the morphology and composition of nanomaterials remains a significant challenge.

Purpose of the Study:

• To develop a facile one-pot method for fabricating one-dimensional core/shell microrods.
• To demonstrate the ability to tune shell composition and structure using additives.
• To investigate the influence of additives on core morphology and molecular arrangement.

Main Methods:

• A one-pot synthesis approach was employed.
• Dimethyl melamine hydrochloride was used as the core material.
• Melamine derivatives (pyrene, thiophene, naphthalene diimide) were utilized as additives to form the shell.
• X-ray diffraction was used to analyze molecular arrangements and crystal structures.

Main Results:

• Successfully fabricated one-dimensional core/shell microrods with tunable shell compositions.
• Demonstrated control over microrod length and width by adjusting molar ratios and concentrations.
• Revealed detailed molecular arrangements within the core and the selective effect of additives on crystal faces.

Conclusions:

• The developed one-pot method provides a facile approach for fabricating functional one-dimensional core/shell microrods.
• Additive selection allows for precise control over shell composition and influences core morphology.
• This work opens avenues for the design of new one-dimensional functional materials.