Atomically precise (catalytic) particles synthesized by a novel cluster deposition instrument

Area of Science:

• Surface Science and Catalysis
• Materials Science and Engineering
• Nanotechnology and Cluster Science

Background:

• Catalytic and materials investigations require well-defined supported cluster catalysts.
• Previous methods lacked precise control over cluster size and deposition.
• Need for efficient preparation of multiple samples for diverse testing.

Purpose of the Study:

• To introduce a novel high vacuum instrument for preparing size-selected metallic clusters on supports.
• To enable detailed catalytic and materials investigations using precisely prepared samples.
• To improve throughput and versatility in cluster deposition experiments.

Main Methods:

• Utilized a high flux magnetron cluster source for metallic cluster ion production.
• Employed a quadrupole mass filter for precise size selection of cluster ions.
• Integrated conical octupole and linear ion guides for efficient ion collection and focusing.
• Designed a new sample holder for simultaneous preparation of multiple samples with varied supports.

Main Results:

• Successfully demonstrated the preparation of size-selected metallic clusters on various supports.
• The instrument allows for efficient deposition and preparation of multiple samples in a single session.
• The system is designed for seamless transfer of prepared samples for ex-situ testing and characterization.

Conclusions:

• The new high vacuum instrument provides a versatile platform for advanced catalytic and materials research.
• Precise control over cluster size and deposition enhances the reliability of investigations.
• The design facilitates high-throughput preparation of supported clusters for diverse scientific applications.