(561f) Designing Two Dimensional Materials for Oxygen Electrocatalysis

Oxygen electrocatalysis is at the heart of emerging renewable energy technologies such as fuel cells, electrolyzes, and rechargeable metal-air batteries, all of which are expected to play a significant role in transitioning to a more sustainable future. Two-dimensional materials have emerged as promising electrocatalysts with a wide range of application in oxygen electrocatalysis ranging from 2e- and 4e- oxygen reduction reactions to 2e- and 4e- water oxidation reactions. In this talk, I will present our recent progress on atomic scale design of two-dimensional materials for various oxygen electrocatalysis reactions. More specifically, I focus on catalyst design for 1) 4e- oxygen reduction reaction for fuel cells, 2e- oxygen reduction reaction for hydrogen peroxide (H2O2) synthesis.1-5 I will also show why some two-dimensional materials are more selective for the 2e-oxygen reduction reaction and prefer hydrogen peroxide.

References:

1. Nat. Commun. 8, 701 (2017).

2. Nat. Catal. 1, 156 (2018).

3. Nat. Commun. 10, 3997 (2019).

4. Nat. Commun. 11, 2209 (2020).

5. Nat. Commun. 11, 2178 (2020).