During a postdoctoral fellowship in catalysis, you can expect to: 1. Conduct Research: Carry out experiments, simulations, or theoretical studies to advance the field of catalysis. 2. Publish and Present: Write research papers and present findings at conferences and seminars. 3. Collaborate: Work with other researchers, both within and outside your host institution. 4. Mentorship: Receive guidance from senior scientists and potentially mentor graduate students.