What are the Key Techniques in Low Dose Imaging for Catalysis?
Several techniques are pivotal in low dose imaging for catalysis:
Cryo-EM: This technique involves freezing the catalyst sample to cryogenic temperatures, reducing radiation damage and preserving the sample's integrity. Phase Contrast Imaging: Utilizes the phase shifts of electrons passing through the sample to produce high-contrast images at low doses. Scanning Transmission Electron Microscopy (STEM): Allows for high-resolution imaging with minimal dose by scanning a focused electron beam across the sample. Atomic Force Microscopy (AFM): Employs a mechanical probe to map the surface of the catalyst, avoiding the use of damaging radiation altogether.
