TY - JOUR
T1 - Light-Driven Hydrogen Generation from Methanol Vapor Using Halide Perovskite Nanocrystals
AU - Wu, Linzhong
AU - He, Fei
AU - Du, Haiqiong
AU - Zhang, Yang
AU - Ghimire, Sushant
AU - Stein, Markus
AU - Huang, He
AU - Polavarapu, Lakshminarayana
AU - Zhang, Qiao
AU - Feldmann, Jochen
AU - Debnath, Tushar
AU - Wang, Yiou
N1 - Publisher Copyright:
© 2025 American Chemical Society.
PY - 2025
Y1 - 2025
N2 - The facile preparation, structural tunability, and unique optical properties of halide perovskites have led to great success in solar cells and light-emitting devices. However, due to their instability in low-cost polar solvents (e.g., methanol and water), their application in photocatalysis is currently lagging and usually requires special encapsulation. Herein, we demonstrate that halide perovskite (MAPbBr3, CsPbBr3) nanocrystals are stable for photocatalytic hydrogen production from methanol/water vapor as proton sources without special protection in the presence of Pt cocatalysts. In methanol vapor, an optimal MAPbBr3 perovskite NC film exhibits steady hydrogen evolution for ∼20 h under solar irradiation, reaching a marked hydrogen evolution rate of 424 μmol·g-1·h-1. Notably, time-resolved spectroscopies reveal that the diffusion-limited feeding of electron-hole pairs toward Pt clusters dominates the dynamics of charge transfer. This study shows the potential of directly using halide perovskites for light-driven reactions in polar environments.
AB - The facile preparation, structural tunability, and unique optical properties of halide perovskites have led to great success in solar cells and light-emitting devices. However, due to their instability in low-cost polar solvents (e.g., methanol and water), their application in photocatalysis is currently lagging and usually requires special encapsulation. Herein, we demonstrate that halide perovskite (MAPbBr3, CsPbBr3) nanocrystals are stable for photocatalytic hydrogen production from methanol/water vapor as proton sources without special protection in the presence of Pt cocatalysts. In methanol vapor, an optimal MAPbBr3 perovskite NC film exhibits steady hydrogen evolution for ∼20 h under solar irradiation, reaching a marked hydrogen evolution rate of 424 μmol·g-1·h-1. Notably, time-resolved spectroscopies reveal that the diffusion-limited feeding of electron-hole pairs toward Pt clusters dominates the dynamics of charge transfer. This study shows the potential of directly using halide perovskites for light-driven reactions in polar environments.
UR - http://www.scopus.com/inward/record.url?scp=105006727571&partnerID=8YFLogxK
U2 - 10.1021/acsenergylett.5c01047
DO - 10.1021/acsenergylett.5c01047
M3 - Article
AN - SCOPUS:105006727571
SN - 2380-8195
SP - 2978
EP - 2985
JO - ACS Energy Letters
JF - ACS Energy Letters
ER -