Formation of inorganic liquid gallium particle–manganese oxide composites

Cai, Shengxiang; Ghasemian, Mohammad B.; Rahim, Md. Arifur; Baharfar, Mahroo; Yang, Jiong; Tang, Jianbo; Kalantar‐zadeh, Kourosh; Allioux, François-Marie

doi:10.1039/d2nr06384k

Cited by 5 publications

(6 citation statements)

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“…[45,46] The Ga 2p spectrum further confirms these assignments, where the BE of ≈1116.3 eV corresponds to the elemental Ga 0 of the Ga particle core, and at BE of ≈1118.51 eV can be attributed to Ga 3+ species that originates from the thin oxide layer formed during the sonication. [45,47,48] For the MPI ink (Figure 2d), the presence of two characteristic peaks at BE of ≈458.9 and ≈465 eV, indicating the chemical states of Ti 2p 1/2 and Ti 2p 3/2 , respectively, that corroborates the existence of the 4+ oxidation state of Ti ions in the MPI, as also reported elsewhere. [36,49] Besides, the presence of Fe 3+ was also identified by XPS (Figure 2e) in the MPI with the two major peaks at BE of ≈712 and ≈725 eV that can be attributed to Fe 2p 3/2 and Fe 2p 1/2 , respectively.…”

Section: Synthesis and Characterization Of Lm-mpi Compositesupporting

confidence: 87%

Polyphenol‐Mediated Liquid Metal Composite Architecture for Solar Thermoelectric Generation

Flores,

Centurion,

Zheng

et al. 2023

Advanced Materials

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The development of advanced solar energy technologies, which efficiently convert solar energy to heat and then to electricity, remains a significant challenge in the pursuit of clean energy production. Here, we address this challenge by designing a photothermal absorber composed of liquid gallium particles and a natural polyphenol‐based coordination ink. The design of this composite takes advantage of the tuneable light absorption properties of the polyphenol inks and can also be applied onto flexible substrates. While the ink utilizes two types of coordination complexes to absorb light at different wavelengths, the liquid gallium particles with high thermal and electrical properties provide enhanced thermoelectric effect. As such, the photothermal composite exhibits a broad‐spectrum light absorption and highly efficient solar‐to‐heat conversion. A thermoelectric generator coated with the photothermal composite exhibits an impressive voltage output of ∼185.3 mV when exposed to 1 Sun illumination, without requiring any optical concentration, which sets a new record for a power density at 345.5 μW cm−2. This work showcases the synergistic combination of natural compound‐based light‐absorbing coordination complexes with liquid metals to achieve a strong photothermal effect and their integration into thermoelectric devices with powerful light harvesting capabilities.This article is protected by copyright. All rights reserved

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Section: Synthesis and Characterization Of Lm-mpi Compositesupporting

confidence: 87%

Polyphenol‐Mediated Liquid Metal Composite Architecture for Solar Thermoelectric Generation

Flores,

Centurion,

Zheng

et al. 2023

Advanced Materials

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“…Recently, the sonochemical-assisted technique was employed to develop various types of LM-based composite particles for functional applications [36][37][38]. A recent study reported the synthesis of nano/micro-sized Ga/Ni co-catalysts for biofuel conversion to value-added byproducts.…”

Section: Introductionmentioning

confidence: 99%

“…In this technique, catalyst materials (Ni and NiO 2 ) were employed in the sonication process to decorate the surface of gallium-based particles via the ultrasonic approach [36]. In another research study, manganese oxide [37] and molybdenum oxysulfide [38] shells were developed on the gallium-based NPs via a sonochemical synthesis approach. In these methods, the highly active surface of gallium-based NPs interacts directly with the chemical agents in the presence of strong ultrasonic waves, resulting in the synthesis of unregularly deformed NPs and nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Crystalline Nanodomains at Multifunctional Two-Dimensional Liquid–Metal Hybrid Interfaces

2023

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Two-dimensional (2D) liquid–metal (LM) heterointerfaces with their tunable physicochemical characteristics are emerging platforms for the development of multifunctional hybrid nanostructures with numerous functional applications. From this perspective, the functionalization of LM galinstan nanoparticles (NPs) with crystalline nanodomains is a promising approach toward the synthesis of novel 2D hybrid LM heterointerfaces with unprecedented properties. However, the decoration of LM heterointerfaces with desired nanocrystalline structures is a challenging process due to simultaneous and intensive interactions between liquid–metal-based structures and metallic nanodomains. The present study discloses a facile and functional method for the growth of crystalline nanodomains at LM heterointerfaces. In this sonochemical-assisted synthesis method, acoustic waves provide the driving force for the growth of ultra-fine crystalline nanodomains on the surface of galinstan NPs. The galinstan NPs were initially engulfed within carbon nanotube (CNT) frameworks, to prevent intensive reactions with surrounding environment. These CNT frameworks furthermore separate galinstan NPs from the other products of sonochemistry reactions. The following material characterization studies demonstrated the nucleation and growth of various types of polycrystalline structures, including Ag, Se, and Nb nanodomains on 2D heterointerfaces of galinstan NPs. The functionalized galinstan NPs showed tunable electronic and photonic characteristics originated from their 2D hybrid interfaces.

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“…112 Similarly, atomic-thickness hydrated MnO 2 sheets and the inorganic network of nano-MnO 2 are synthesized by an electric coupling substitution reaction between permanganate ions and EGaIn. 12,113 Additionally, 2D CuO x nanomaterials are produced by galvanic replacement between Cu(OH) 3 − and liquid Ga. 14 The electron accumulation on the Ga surface creates a reactive surface potential, driving the reduction and self-deposition of precursor metal cations. For example, significantly crystallized rhombohedral layered Bi 2 Te 3 platelets were formed when metal-based cations (specifically Bi 3+ -HTeO 2 + in acidic environments) are introduced to the smooth and oxide-free EGaIn surfaces.…”

Section: Metal Oxide Nanomaterials (2d Materials) Ga-basedmentioning

confidence: 99%

Gallium-based liquid metals as reaction media for nanomaterials synthesis

Wang,

Lin

2024

Nanoscale

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Formation of inorganic liquid gallium particle–manganese oxide composites

Abstract: Gallium (Ga) is a low melting point post-transition metal that, under mild mechanical agitation, can form micron and submicron-sized particles with combined fluid-like and metallic properties. In this work, an...

Cited by 5 publications

References 84 publications

Polyphenol‐Mediated Liquid Metal Composite Architecture for Solar Thermoelectric Generation

Polyphenol‐Mediated Liquid Metal Composite Architecture for Solar Thermoelectric Generation

Crystalline Nanodomains at Multifunctional Two-Dimensional Liquid–Metal Hybrid Interfaces

Gallium-based liquid metals as reaction media for nanomaterials synthesis

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