journal article·2025-06-13

Light-Driven Hydrogen Generation from Methanol Vapor Using Halide Perovskite Nanocrystals

Linzhong Wu, Fei He, Haiqiong Du, Yang Zhang, Sushant Ghimire, Markus Stein, He Huang, Lakshminarayana Polavarapu, Qiao Zhang, Jochen Feldmann, Tushar Debnath, Yiou Wang

ACS Energy Letters· Volume 10· Issue 6
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Abstract

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 (MAPbBr 3, CsPbBr 3 ) 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 MAPbBr 3 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.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Advanced Photocatalysis Techniques · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Chair for Photonics and Optoelectronics, Nano-Institute Munich, Department of Physics, Ludwig-Maximilians-Universität München. Königinstr. 10, 80539 Munich, Germany

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University. 199 Ren’ai Road, Suzhou 215123, Jiangsu, China

Suzhou Laboratory, No.388, Ruoshui Road, Suzhou Industrial Park, Suzhou 215121, Jiangsu Province, China

School of Optoelectronic Science and Engineering

Soochow University

School of Interdisciplinary Science, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Haidian District, Beijing 100081, China

CINBIO, Universidade de Vigo, Departamento de Química Física

Campus Universitario As Lagoas

Nano Physical Spectroscopy Group, Department of Chemistry, School of Natural Sciences

Shiv Nadar Institution of Eminence

Funding

Suzhou Municipal Science and Technology Bureau · Ministerio de Ciencia, Innovaci?n y Universidades · Science and Engineering Research Board · European Regional Development Fund · Beijing Institute of Technology · China Scholarship Council · Alexander von Humboldt-Stiftung · Solar Technologies go Hybrid · National Natural Science Foundation of China · Footecarbon Co., Ltd · International Joint Laboratory on Low-Dimensional Optoelectronic Materials and Devices, Soochow University

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