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Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution
We report the controllable synthesis of AuNi core–shell (c-AuNi) and Janus (j-AuNi) nanocrystals (NCs) with uniform shape, tunable size and compositions in the presence of trioctylphosphine (TOP) or triphenylphosphine (TPP). The morphology of the AuNi bimetallic NCs could be regulated by varying the...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812016/ https://www.ncbi.nlm.nih.gov/pubmed/36686932 http://dx.doi.org/10.1039/d2ra06325e |
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author | Zhang, Chu Xue, Can |
author_facet | Zhang, Chu Xue, Can |
author_sort | Zhang, Chu |
collection | PubMed |
description | We report the controllable synthesis of AuNi core–shell (c-AuNi) and Janus (j-AuNi) nanocrystals (NCs) with uniform shape, tunable size and compositions in the presence of trioctylphosphine (TOP) or triphenylphosphine (TPP). The morphology of the AuNi bimetallic NCs could be regulated by varying the structure and concentration of phosphine ligands. The ligand-directed structural evolution mechanism of AuNi bimetallic NCs was investigated and discussed in detail. When loaded on graphitic carbon nitride (GCN) for photocatalytic hydrogen generation, the obtained j-AuNi NCs showed much higher activity for hydrogen evolution than the monometallic (Au and Ni) counterparts, owing to the synergistic effect of plasmon enhanced light absorption from the Au portion and additional electron sink effect from the Ni portion. This work provides a promising route for preparing low-cost Au-based bimetallic catalysts with controllable morphologies and high activities for hydrogen production. |
format | Online Article Text |
id | pubmed-9812016 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-98120162023-01-20 Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution Zhang, Chu Xue, Can RSC Adv Chemistry We report the controllable synthesis of AuNi core–shell (c-AuNi) and Janus (j-AuNi) nanocrystals (NCs) with uniform shape, tunable size and compositions in the presence of trioctylphosphine (TOP) or triphenylphosphine (TPP). The morphology of the AuNi bimetallic NCs could be regulated by varying the structure and concentration of phosphine ligands. The ligand-directed structural evolution mechanism of AuNi bimetallic NCs was investigated and discussed in detail. When loaded on graphitic carbon nitride (GCN) for photocatalytic hydrogen generation, the obtained j-AuNi NCs showed much higher activity for hydrogen evolution than the monometallic (Au and Ni) counterparts, owing to the synergistic effect of plasmon enhanced light absorption from the Au portion and additional electron sink effect from the Ni portion. This work provides a promising route for preparing low-cost Au-based bimetallic catalysts with controllable morphologies and high activities for hydrogen production. The Royal Society of Chemistry 2023-01-04 /pmc/articles/PMC9812016/ /pubmed/36686932 http://dx.doi.org/10.1039/d2ra06325e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Zhang, Chu Xue, Can Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution |
title | Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution |
title_full | Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution |
title_fullStr | Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution |
title_full_unstemmed | Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution |
title_short | Ligand-assisted morphology regulation of AuNi bimetallic nanocrystals for efficient hydrogen evolution |
title_sort | ligand-assisted morphology regulation of auni bimetallic nanocrystals for efficient hydrogen evolution |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812016/ https://www.ncbi.nlm.nih.gov/pubmed/36686932 http://dx.doi.org/10.1039/d2ra06325e |
work_keys_str_mv | AT zhangchu ligandassistedmorphologyregulationofaunibimetallicnanocrystalsforefficienthydrogenevolution AT xuecan ligandassistedmorphologyregulationofaunibimetallicnanocrystalsforefficienthydrogenevolution |