Synthesis of graphdiyne on a copper substrate via a self-coupling reaction

Area of Science:

• Materials Science
• Organic Chemistry
• Electrochemistry

Background:

• Graphdiyne synthesis has been challenging.
• Controlled synthesis of porous carbon materials is crucial for catalysis.

Purpose of the Study:

• To develop a facile and efficient method for graphdiyne synthesis.
• To evaluate the catalytic performance of the synthesized graphdiyne for hydrogen and oxygen evolution reactions.

Main Methods:

• A novel self-coupling reaction of hexakis(bromoethynyl)benzene (hBEP) was employed.
• The reaction was conducted at room temperature over 12 hours.
• The synthesized graphdiyne film was characterized for its structure and properties.

Main Results:

• Graphdiyne was successfully synthesized via the self-coupling of hBEP.
• The reaction proceeded efficiently at room temperature within 12 hours.
• The resulting graphdiyne film exhibited a porous structure, excellent chemical stability, and high catalytic activity for HER/OER.

Conclusions:

• A new, efficient strategy for graphdiyne preparation was established.
• The synthesized graphdiyne shows great potential as a catalyst for water splitting applications.
• The room-temperature synthesis offers a practical advantage for scalable production.