Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior
Non-noble metal nanoclusters synthesis is receiving increased attention due to their unique catalytic properties and lower cost. Herein, the synthesis of ligand-free Ni nanoclusters with an average diameter of 0.7 nm corresponding to a structure of 13 atoms is presented; they exhibit a zero-valence...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00219797_v516_n_p371_Peinetti |
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todo:paper_00219797_v516_n_p371_Peinetti2023-10-03T14:25:16Z Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior Peinetti, A.S. Mizrahi, M. Requejo, F.G. Buceta, D. López-Quintela, M.A. González, G.A. Battaglini, F. Catalytic methylene blue reduction EXAFS and XANES characterization Growth mechanism Nickel nanoclusters Nickel nanowires Zero-valence nickel Alumina Aromatic compounds Chelation Electrolytic reduction Nanowires Nickel Precious metals Growth mechanisms Methylene Blue Nickel nanowires Nickel-nanoclusters XANES Nanoclusters methylene blue nanowire nickel Article catalysis catalyst current density growth regulation oxidation priority journal reduction (chemistry) scanning electron microscopy structure analysis synthesis Non-noble metal nanoclusters synthesis is receiving increased attention due to their unique catalytic properties and lower cost. Herein, the synthesis of ligand-free Ni nanoclusters with an average diameter of 0.7 nm corresponding to a structure of 13 atoms is presented; they exhibit a zero-valence state and a high stability toward oxidation and thermal treatment. The nanoclusters formation method consists in the electroreduction of nickel ions inside an ordered mesoporous alumina; also, by increasing the current density, other structures can be obtained reaching to nanowires of 10 nm diameter. A seed-mediated mechanism is proposed to explain the growth to nanowires inside these mesoporous cavities. The size dependence on the catalytic behavior of these entities is illustrated by studying the reduction of methylene blue where the nanoclusters show an outstanding performance. © 2018 Elsevier Inc. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00219797_v516_n_p371_Peinetti |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Catalytic methylene blue reduction EXAFS and XANES characterization Growth mechanism Nickel nanoclusters Nickel nanowires Zero-valence nickel Alumina Aromatic compounds Chelation Electrolytic reduction Nanowires Nickel Precious metals Growth mechanisms Methylene Blue Nickel nanowires Nickel-nanoclusters XANES Nanoclusters methylene blue nanowire nickel Article catalysis catalyst current density growth regulation oxidation priority journal reduction (chemistry) scanning electron microscopy structure analysis synthesis |
| spellingShingle |
Catalytic methylene blue reduction EXAFS and XANES characterization Growth mechanism Nickel nanoclusters Nickel nanowires Zero-valence nickel Alumina Aromatic compounds Chelation Electrolytic reduction Nanowires Nickel Precious metals Growth mechanisms Methylene Blue Nickel nanowires Nickel-nanoclusters XANES Nanoclusters methylene blue nanowire nickel Article catalysis catalyst current density growth regulation oxidation priority journal reduction (chemistry) scanning electron microscopy structure analysis synthesis Peinetti, A.S. Mizrahi, M. Requejo, F.G. Buceta, D. López-Quintela, M.A. González, G.A. Battaglini, F. Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior |
| topic_facet |
Catalytic methylene blue reduction EXAFS and XANES characterization Growth mechanism Nickel nanoclusters Nickel nanowires Zero-valence nickel Alumina Aromatic compounds Chelation Electrolytic reduction Nanowires Nickel Precious metals Growth mechanisms Methylene Blue Nickel nanowires Nickel-nanoclusters XANES Nanoclusters methylene blue nanowire nickel Article catalysis catalyst current density growth regulation oxidation priority journal reduction (chemistry) scanning electron microscopy structure analysis synthesis |
| description |
Non-noble metal nanoclusters synthesis is receiving increased attention due to their unique catalytic properties and lower cost. Herein, the synthesis of ligand-free Ni nanoclusters with an average diameter of 0.7 nm corresponding to a structure of 13 atoms is presented; they exhibit a zero-valence state and a high stability toward oxidation and thermal treatment. The nanoclusters formation method consists in the electroreduction of nickel ions inside an ordered mesoporous alumina; also, by increasing the current density, other structures can be obtained reaching to nanowires of 10 nm diameter. A seed-mediated mechanism is proposed to explain the growth to nanowires inside these mesoporous cavities. The size dependence on the catalytic behavior of these entities is illustrated by studying the reduction of methylene blue where the nanoclusters show an outstanding performance. © 2018 Elsevier Inc. |
| format |
JOUR |
| author |
Peinetti, A.S. Mizrahi, M. Requejo, F.G. Buceta, D. López-Quintela, M.A. González, G.A. Battaglini, F. |
| author_facet |
Peinetti, A.S. Mizrahi, M. Requejo, F.G. Buceta, D. López-Quintela, M.A. González, G.A. Battaglini, F. |
| author_sort |
Peinetti, A.S. |
| title |
Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior |
| title_short |
Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior |
| title_full |
Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior |
| title_fullStr |
Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior |
| title_full_unstemmed |
Synthesis of nickel entities: From highly stable zerovalent nanoclusters to nanowires. Growth control and catalytic behavior |
| title_sort |
synthesis of nickel entities: from highly stable zerovalent nanoclusters to nanowires. growth control and catalytic behavior |
| url |
http://hdl.handle.net/20.500.12110/paper_00219797_v516_n_p371_Peinetti |
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| _version_ |
1782030649467600896 |