Understanding Dynamic Interface Changes under Diurnal Conditions (New Publication!)
By Adam C. Nielander
We are excited to share our recent work, "MoS2 Degradation Dynamics under Simulated Diurnal (Photo)electrochemical H2 Evolution Reaction Conditions", published in the Journal of the American Chemical Society.
Mitigating the performance degradation under these dynamic conditions is a key challenge in the field of electrochemical energy conversion. This is especially true for devices driven by solar energy, where day-night (i.e., diurnal) cycling inevitably changes operating conditions and can drive performance loss.
This article describes our effort to understand how electrified catalytic interfaces respond to these varying day-night conditions operating conditions. We used a representative MoS2 interface, which serves as both H2 evolution catalyst and protective layer, as our model system. Using a combination of advanced tools, we observed changing degradation mechanisms under simulated day-night conditions, and discussed strategies for engineering improved durability in solar fuels devices under such diurnal conditions.
Read the whole article here!
A special thanks to Kyra Yap for leading this work, and to all of our co-authors, including Swathilaskshmi, Timothy Lin, Ashton M. Aleman, Katherine Yan, Prof. Ryan Hannagan, Dr. Aniket Mule, Cindy Wang, Dr. Sang-Won Lee, Dr. Judith Zander, Prof. Jingjing Qiu, and Prof. Thomas Jaramillo for all their effort
