Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction
- Autores
- Gomez, Melisa Julieta; Benavente Llorente, Victoria; Hainer, Andrew; Lacconi, Gabriela Ines; Scaiano, Juan Cesar; Franceschini, Esteban Andrés; Lanterna, Anabel Estela
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The use of earth-abundant materials for designing efficient and stable electrocatalysts is of paramount importance to facilitate large-scale production of hydrogen. In this work we developed a new series of electrodes based on Ni-semiconductor composites (Ni|SC) that are easy to synthesize (binder-free, economic and readily scalable method of synthesis), highly stable and active towards electrochemical hydrogen production under alkaline conditions. We showed the direct electrodeposition of composites (Ni|SC) from nickel-Watts plating baths modified by the addition of Nb2O5, Nb3(PO4)5, Bi2O3 and WO3 semiconductor particles. The electrodes were characterized by different techniques (electron and confocal microscopy, X-ray spectroscopy, X-ray diffraction, Raman spectroscopy, among others) before and after their electrochemical evaluation as catalysts for hydrogen evolution from water. In order to gain insights into their structure-activity relationship, the materials were also characterized by means of electrochemical analyses, i.e., cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. All catalysts have onset potential values around -1.1 V vs. SCE and similar Tafel slopes (ca. 120 mV dec-1) corresponding to the Volmer reaction as the rate determining step of the reaction. These catalysts show an increase of up to 115% (for Ni|WO3) of hydrogen production current compared to conventional Ni catalysts, in most cases preserving great chemical and structural stability after short ageing under alkaline conditions. The composite catalysts were synthesized on low-cost nickel-plated stainless-steel supports, which make them excellent alternatives for replacing massive nickel electrodes in conventional alkaline electrolyzers.
Fil: Gomez, Melisa Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. University of Ottawa. Faculty of Science; Canadá
Fil: Benavente Llorente, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Hainer, Andrew. University of Ottawa. Faculty of Science; Canadá
Fil: Lacconi, Gabriela Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Scaiano, Juan Cesar. University of Ottawa. Faculty of Science; Canadá
Fil: Franceschini, Esteban Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Lanterna, Anabel Estela. University of Ottawa. Faculty of Science; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina - Materia
-
HYDROGEN GENERATION
NIOBIUM SEMICONDUCTORS
TUNGSTEN OXIDE
IMPEDANCE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/144351
Ver los metadatos del registro completo
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Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reactionGomez, Melisa JulietaBenavente Llorente, VictoriaHainer, AndrewLacconi, Gabriela InesScaiano, Juan CesarFranceschini, Esteban AndrésLanterna, Anabel EstelaHYDROGEN GENERATIONNIOBIUM SEMICONDUCTORSTUNGSTEN OXIDEIMPEDANCEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The use of earth-abundant materials for designing efficient and stable electrocatalysts is of paramount importance to facilitate large-scale production of hydrogen. In this work we developed a new series of electrodes based on Ni-semiconductor composites (Ni|SC) that are easy to synthesize (binder-free, economic and readily scalable method of synthesis), highly stable and active towards electrochemical hydrogen production under alkaline conditions. We showed the direct electrodeposition of composites (Ni|SC) from nickel-Watts plating baths modified by the addition of Nb2O5, Nb3(PO4)5, Bi2O3 and WO3 semiconductor particles. The electrodes were characterized by different techniques (electron and confocal microscopy, X-ray spectroscopy, X-ray diffraction, Raman spectroscopy, among others) before and after their electrochemical evaluation as catalysts for hydrogen evolution from water. In order to gain insights into their structure-activity relationship, the materials were also characterized by means of electrochemical analyses, i.e., cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. All catalysts have onset potential values around -1.1 V vs. SCE and similar Tafel slopes (ca. 120 mV dec-1) corresponding to the Volmer reaction as the rate determining step of the reaction. These catalysts show an increase of up to 115% (for Ni|WO3) of hydrogen production current compared to conventional Ni catalysts, in most cases preserving great chemical and structural stability after short ageing under alkaline conditions. The composite catalysts were synthesized on low-cost nickel-plated stainless-steel supports, which make them excellent alternatives for replacing massive nickel electrodes in conventional alkaline electrolyzers.Fil: Gomez, Melisa Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. University of Ottawa. Faculty of Science; CanadáFil: Benavente Llorente, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Hainer, Andrew. University of Ottawa. Faculty of Science; CanadáFil: Lacconi, Gabriela Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Scaiano, Juan Cesar. University of Ottawa. Faculty of Science; CanadáFil: Franceschini, Esteban Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Lanterna, Anabel Estela. University of Ottawa. Faculty of Science; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaRoyal Society of Chemistry2020-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/144351Gomez, Melisa Julieta; Benavente Llorente, Victoria; Hainer, Andrew; Lacconi, Gabriela Ines; Scaiano, Juan Cesar; et al.; Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction; Royal Society of Chemistry; Sustainable Energy and Fuels; 4; 8; 8-2020; 1-92398-4902CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/D0SE00634Cinfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2020/SE/D0SE00634Cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:57:43Zoai:ri.conicet.gov.ar:11336/144351instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:57:43.331CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction |
| title |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction |
| spellingShingle |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction Gomez, Melisa Julieta HYDROGEN GENERATION NIOBIUM SEMICONDUCTORS TUNGSTEN OXIDE IMPEDANCE |
| title_short |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction |
| title_full |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction |
| title_fullStr |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction |
| title_full_unstemmed |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction |
| title_sort |
Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction |
| dc.creator.none.fl_str_mv |
Gomez, Melisa Julieta Benavente Llorente, Victoria Hainer, Andrew Lacconi, Gabriela Ines Scaiano, Juan Cesar Franceschini, Esteban Andrés Lanterna, Anabel Estela |
| author |
Gomez, Melisa Julieta |
| author_facet |
Gomez, Melisa Julieta Benavente Llorente, Victoria Hainer, Andrew Lacconi, Gabriela Ines Scaiano, Juan Cesar Franceschini, Esteban Andrés Lanterna, Anabel Estela |
| author_role |
author |
| author2 |
Benavente Llorente, Victoria Hainer, Andrew Lacconi, Gabriela Ines Scaiano, Juan Cesar Franceschini, Esteban Andrés Lanterna, Anabel Estela |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
HYDROGEN GENERATION NIOBIUM SEMICONDUCTORS TUNGSTEN OXIDE IMPEDANCE |
| topic |
HYDROGEN GENERATION NIOBIUM SEMICONDUCTORS TUNGSTEN OXIDE IMPEDANCE |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
The use of earth-abundant materials for designing efficient and stable electrocatalysts is of paramount importance to facilitate large-scale production of hydrogen. In this work we developed a new series of electrodes based on Ni-semiconductor composites (Ni|SC) that are easy to synthesize (binder-free, economic and readily scalable method of synthesis), highly stable and active towards electrochemical hydrogen production under alkaline conditions. We showed the direct electrodeposition of composites (Ni|SC) from nickel-Watts plating baths modified by the addition of Nb2O5, Nb3(PO4)5, Bi2O3 and WO3 semiconductor particles. The electrodes were characterized by different techniques (electron and confocal microscopy, X-ray spectroscopy, X-ray diffraction, Raman spectroscopy, among others) before and after their electrochemical evaluation as catalysts for hydrogen evolution from water. In order to gain insights into their structure-activity relationship, the materials were also characterized by means of electrochemical analyses, i.e., cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. All catalysts have onset potential values around -1.1 V vs. SCE and similar Tafel slopes (ca. 120 mV dec-1) corresponding to the Volmer reaction as the rate determining step of the reaction. These catalysts show an increase of up to 115% (for Ni|WO3) of hydrogen production current compared to conventional Ni catalysts, in most cases preserving great chemical and structural stability after short ageing under alkaline conditions. The composite catalysts were synthesized on low-cost nickel-plated stainless-steel supports, which make them excellent alternatives for replacing massive nickel electrodes in conventional alkaline electrolyzers. Fil: Gomez, Melisa Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. University of Ottawa. Faculty of Science; Canadá Fil: Benavente Llorente, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Hainer, Andrew. University of Ottawa. Faculty of Science; Canadá Fil: Lacconi, Gabriela Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Scaiano, Juan Cesar. University of Ottawa. Faculty of Science; Canadá Fil: Franceschini, Esteban Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Lanterna, Anabel Estela. University of Ottawa. Faculty of Science; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina |
| description |
The use of earth-abundant materials for designing efficient and stable electrocatalysts is of paramount importance to facilitate large-scale production of hydrogen. In this work we developed a new series of electrodes based on Ni-semiconductor composites (Ni|SC) that are easy to synthesize (binder-free, economic and readily scalable method of synthesis), highly stable and active towards electrochemical hydrogen production under alkaline conditions. We showed the direct electrodeposition of composites (Ni|SC) from nickel-Watts plating baths modified by the addition of Nb2O5, Nb3(PO4)5, Bi2O3 and WO3 semiconductor particles. The electrodes were characterized by different techniques (electron and confocal microscopy, X-ray spectroscopy, X-ray diffraction, Raman spectroscopy, among others) before and after their electrochemical evaluation as catalysts for hydrogen evolution from water. In order to gain insights into their structure-activity relationship, the materials were also characterized by means of electrochemical analyses, i.e., cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. All catalysts have onset potential values around -1.1 V vs. SCE and similar Tafel slopes (ca. 120 mV dec-1) corresponding to the Volmer reaction as the rate determining step of the reaction. These catalysts show an increase of up to 115% (for Ni|WO3) of hydrogen production current compared to conventional Ni catalysts, in most cases preserving great chemical and structural stability after short ageing under alkaline conditions. The composite catalysts were synthesized on low-cost nickel-plated stainless-steel supports, which make them excellent alternatives for replacing massive nickel electrodes in conventional alkaline electrolyzers. |
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2020 |
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2020-08 |
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http://hdl.handle.net/11336/144351 Gomez, Melisa Julieta; Benavente Llorente, Victoria; Hainer, Andrew; Lacconi, Gabriela Ines; Scaiano, Juan Cesar; et al.; Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction; Royal Society of Chemistry; Sustainable Energy and Fuels; 4; 8; 8-2020; 1-9 2398-4902 CONICET Digital CONICET |
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http://hdl.handle.net/11336/144351 |
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Gomez, Melisa Julieta; Benavente Llorente, Victoria; Hainer, Andrew; Lacconi, Gabriela Ines; Scaiano, Juan Cesar; et al.; Evaluation of different Ni–semiconductor composites as electrodes for enhanced hydrogen evolution reaction; Royal Society of Chemistry; Sustainable Energy and Fuels; 4; 8; 8-2020; 1-9 2398-4902 CONICET Digital CONICET |
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