Ligands as "Matchmakers": Alloying from a Physical Mixture of Metal Nanoparticle Dispersions by Digestive Ripening.
| Autor: | Shimpi JR; Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India., Prasad BLV; Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India.; Centre for Nano and Soft Matter Sciences, Arkavathi, Survey No.7 Shivanapura, Dasanapura Hobli, Bengaluru, Karnataka 562162, India. |
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| Jazyk: | angličtina |
| Zdroj: | Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2022 Dec 27; Vol. 38 (51), pp. 15917-15924. Date of Electronic Publication: 2022 Dec 14. |
| DOI: | 10.1021/acs.langmuir.2c01884 |
| Abstrakt: | Digestive ripening (DR) of a physical mixture of different metal nanoparticles (NPs) in the presence of a suitable ligand is demonstrated to be a convenient way to obtain alloy NPs. The results show that the right choice of metal-ligand combination is extremely important for efficient alloying. The results are rationalized on the basis of hard soft acid base principles, and it is concluded that better alloying ensues if DR is carried out with soft ligands when soft metals are being used and hard ligands facilitate alloying between hard metals. On the other hand, when a physical mixture of hard-soft metals is taken, ligands with intermediate character work better. The results presented here could prove to be extremely valuable and open new avenues of making interesting alloy/intermetallic systems. |
| Databáze: | MEDLINE |
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