Journal
NANOMATERIALS
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/nano11020433
Keywords
metal halide perovskites; lead-free; photocatalysis; solar-driven hydrogen evolution; aqueous solutions; water-stable; materials properties
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Funding
- PON CLOSE-Close to the Earth [ARS01_00141]
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The exploitation of metal halide perovskites (MHPs) represents a significant frontier in photovoltaic technologies, with potential applications in solar-driven photocatalysis, particularly in efficient hydrogen (H-2) production. Emphasis is placed on lead-free materials to address environmental concerns, highlighting the importance of material composition/structure in catalytic processes for future expansion in light-driven catalysts working in aqueous environments.
Metal halide perovskites (MHPs) exploitation represents the next big frontier in photovoltaic technologies. However, the extraordinary optoelectronic properties of these materials also call for alternative utilizations, such as in solar-driven photocatalysis, to better address the big challenges ahead for eco-sustainable human activities. In this contest the recent reports on MHPs structures, especially those stable in aqueous solutions, suggest the exciting possibility for efficient solar-driven perovskite-based hydrogen (H-2) production. In this minireview such works are critically analyzed and classified according to their mechanism and working conditions. We focus on lead-free materials, because of the environmental issue represented by lead containing material, especially if exploited in aqueous medium, thus it is important to avoid its presence from the technology take-off. Particular emphasis is dedicated to the materials composition/structure impacting on this catalytic process. The rationalization of the distinctive traits characterizing MHPs-based H-2 production could assist the future expansion of the field, supporting the path towards a new class of light-driven catalysts working in aqueous environments.
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