Continuous-flow synthesis of BiVO4 nanoparticles: From laboratory scale to practical systems
Cost-effective and efficient photoelectrochemical (PEC) water splitting stands out as one of the most promising strategies to address sustainable energy supply in the form of green H2. Large-area photoelectrodes featuring precise chemical and morphological control are key components for a practical...
| Autores: | , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/399244 |
| Acceso en línea: | http://hdl.handle.net/10261/399244 https://api.elsevier.com/content/abstract/scopus_id/85218690015 |
| Access Level: | acceso abierto |
| Palabra clave: | Bismuth vanadate Flow synthesis Photoanode Solar hydrogen Upscaling |
| Sumario: | Cost-effective and efficient photoelectrochemical (PEC) water splitting stands out as one of the most promising strategies to address sustainable energy supply in the form of green H2. Large-area photoelectrodes featuring precise chemical and morphological control are key components for a practical solar-to-hydrogen conversion. Herein, we report the continuous flow synthesis of BiVO4 nanoparticles (NPs) by using a simple microreactor configuration. The solution containing the as-prepared NPs enables the deposition of BiVO4 photoanodes with areas up to 52 cm2 through a simple and scalable chemical bath deposition method. On the other hand, surface protection by an ultrathin Al2O3 overlayer grown by atomic layer deposition (ALD) increases the performance of the 1 cm2 BiVO4 photoanodes ~30 %, exhibiting a photocurrent density of ~2.0 mA⋅cm-2 at 1.23 V vs. the Reversible Hydrogen Electrode in the presence of a sacrificial hole scavenger. The optimized continuous flow synthesis provides an affordable methodology for the fabrication of cost-effective, large-scale photoanodes, which could potentially be applied for different photoelectrochemical reactions. |
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