Exploring the performance of ammonia microfluidic fuel cell using PdNiCo aerogel
In this manuscript, PdNiCo and NiCo aerogel catalysts are prepared by an ultrafast sol-gel method combining microwave heating and freeze-drying. These new aerogels are synthesized to explore the transition metal content compared to a Pd aerogel in order to minimize the dependence on noble metals and...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/389107 |
| Acceso en línea: | http://hdl.handle.net/10261/389107 https://api.elsevier.com/content/abstract/scopus_id/85208095183 |
| Access Level: | acceso embargado |
| Palabra clave: | PdNiCo aerogels Ammonia microfluidic fuel cell Ammonia oxidation reaction NiCo aerogels http://metadata.un.org/sdg/9 http://metadata.un.org/sdg/7 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
| Sumario: | In this manuscript, PdNiCo and NiCo aerogel catalysts are prepared by an ultrafast sol-gel method combining microwave heating and freeze-drying. These new aerogels are synthesized to explore the transition metal content compared to a Pd aerogel in order to minimize the dependence on noble metals and improve their electrocatalytic properties in the presence of ammonia. The textural properties of the aerogels were characterized by the N2 adsorption/desorption isotherms. The crystal structures were measured by X-ray diffraction and X-ray photoelectron spectroscopy was used to analyze the electronic structures of the elements. The electrocatalytic activity of the aerogels towards the ammonia oxidation reaction was tested by cyclic voltammetry in a 1 M KOH + 1 M NH4OH solution. The combination of these properties in the PdNiCo and NiCo aerogels enhances the electrocatalytic activity of ammonium electro-oxidation compared to that of the Pd aerogel alone, and the multimetallic aerogels are more stable when used in a microfluidic device such as an ammonia fuel cell. |
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