Synthesis of Sn/Ag–Sn nanoparticles <i>via</i> room temperature galvanic reaction and diffusion

Saw, Min Jia; Nguyen, Mai Thanh; Zhu, Shilei; Wang, Yongming; Yonezawa, Tetsu

doi:10.1039/c9ra02987g

Cited by 7 publications

(5 citation statements)

References 36 publications

(50 reference statements)

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“…12 Besides that, the galvanic displacement method has been used to synthesize the Ag-Sn intermetallic core with a SnO 2 shell, 14,26 and the Ag 3 Sn/Ag 4 Sn intermetallic shell with the core of Sn nanoparticles. 27 Most of the reports either show the appearance of the β-Sn phase along with the Ag-Sn intermetallic phase and/ or a broad range of size distributions. Reports on the synthesis of phase pure Ag-Sn intermetallics with a tight control over the size and well-defined shape are limited.…”

Section: Introductionmentioning

confidence: 99%

Co-digestive ripening assisted phase-controlled synthesis of Ag–Sn intermetallic nanoparticles and their dye degradation activity

Bhatia

Jagirdar

2022

Dalton Trans.

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Section: Introductionmentioning

confidence: 99%

Co-digestive ripening assisted phase-controlled synthesis of Ag–Sn intermetallic nanoparticles and their dye degradation activity

Bhatia

Jagirdar

2022

Dalton Trans.

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“…48 The HR-TEM image, Figure 2h, also shows interlayer spacing values of 0.29 and 0.27 nm corresponding to (200) and (101) planes of the Sn lattice structure. 49,50 The crystallographic orientation of these planes is shown in Figure S3a. To obtain more information on the elemental composition of the expelled product, XPS and depth profiling analyses, Figure 2i, were performed.…”

Section: Expulsion From Galinstan In Aqueous and Non-aqueous Electrol...mentioning

confidence: 99%

Interface-Controlled Phase Separation of Liquid Metal-Based Eutectic Ternary Alloys

et al. 2022

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Liquid metals (LMs) are immiscible in many common electrolytic solutions and, when immersed in them, establish phase boundaries that display intriguing interfacial characteristics. The application of a cathodic potential to such interfaces may trigger phase separation of solute elements out of the LMs. Here, we investigate this possibility in two of the most researched and industrially used eutectic ternary LMs of Galinstan (Ga-In-Sn) and Field’s metal (FM, In–Bi–Sn). We observe that upon surface perturbation by an applied electric potential, solute elements compete to segregate out of the LM alloys according to their energy levels. The nature of the electrolytic solutions plays a key role in the separation process as they dictate whether solute metals are expelled selectively in their pure form or as binary compounds. For example, in a phosphate-based aqueous electrolyte, nano-sized Sn-based entities are selectively expelled from Galinstan, while only Bi-based structures leave the surface of FM. In contrast, in a non-aqueous electrolyte, nano-sized binary compounds of Sn–In and Bi–Sn are separated from the surfaces of Galinstan and FM, respectively. We show that selectivity in the surface separation process, achieved by the alteration of the electrolytic solutions, is due to the interplay between the electrodynamic interactions and the electrocapillary effect. This study presents two key findings: (a) it is essential to carefully consider the possibility of component separation in electrochemical systems based on LMs and (b) it demonstrates interfacial metallurgical pathways to process alloys for refining metals into specific purities, component ratios, and dimensions.

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“…Metal nanoparticles are promising for manufacturing high-performance printable electronics for various applications. − Currently, metallic silver is the most widely used material, but cost-effective alternatives urgently need to be developed due to its relatively expensive cost. Tin (Sn) metal is a promising alternative to metallic silver due to its low cost, low melting point, and good chemical stability in bulk. − However, the route to obtain Sn nanoparticles and the electronic device based on them is still limited by the high intrinsic reactivity. − These nanoparticles are susceptible to re-oxidation in air, either after synthesis, during purification, or when the material is stored. − Therefore, developing tin nanoparticles with high antioxidation properties and excellent dispersibility is necessary to realize their potential fully.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Citrate-Capped Sn Nanoparticles with Excellent Oxidation Resistance for High-Performance Electrically Conductive Adhesives

Cao

Chen

Jiang

et al. 2023

ACS Appl. Electron. Mater.

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Tin (Sn) metallic material is one of the best-known metals and has been extensively studied due to its ease of processing, low melting point, and low cost. However, it is still challenging to synthesize high-processing performance and antioxidant Sn nanoparticles with tunable sizes. This research reported a facile, easy-to-scale-up polyol-mediated synthesis of Sn nanoparticles assisted by sodium citrates as a capping agent. The presence of citrate capping facilitated uniform nucleation of Sn nanoparticles and enhanced their antioxidant capacity and dispersion properties. These nanoparticles can remain stable against oxidation for more than 270 days in an ambient atmosphere, even under continuous heating at 200 °C for over 12 h. The citrate capping also inhibits interparticle agglomeration and allows the preparation of high-quality suspensions in water and many conventional organics. Moreover, efficient size tuning over a wide range (60 nm−1 μm) can be achieved simply by changing the Sn 2+ precursor concentrations. The above-mentioned antioxidant capacity and processability allow them to combine with silver flakes in thermosetting epoxy resin as complementary conductive fillers effectively, creating conductive pathways among the silver flakes to obtain high-performance electrically conductive adhesives (ECAs). By adding Sn nanoparticles as complementary conductive fillers, the resistivity of the ECAs can be reduced to 1/ 6000 of that of the ECAs filled with only the same mass ratio of silver flakes, exhibiting its great potential in future electronics.

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Synthesis of Sn/Ag–Sn nanoparticles via room temperature galvanic reaction and diffusion

Abstract: Coating of Ag–Sn intermetallic compound on Sn nanoparticles at room temperature.

Cited by 7 publications

References 36 publications

Co-digestive ripening assisted phase-controlled synthesis of Ag–Sn intermetallic nanoparticles and their dye degradation activity

Co-digestive ripening assisted phase-controlled synthesis of Ag–Sn intermetallic nanoparticles and their dye degradation activity

Interface-Controlled Phase Separation of Liquid Metal-Based Eutectic Ternary Alloys

Synthesis of Citrate-Capped Sn Nanoparticles with Excellent Oxidation Resistance for High-Performance Electrically Conductive Adhesives

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