Synthesis of surfactant-free electrostatically stabilized gold nanoparticles by plasma-induced liquid chemistry

Patel, Jenish; Němcová, Lucie; Maguire, Paul; Graham, W. G.; Mariotti, Davide

doi:10.1088/0957-4484/24/24/245604

Cited by 189 publications

(251 citation statements)

References 56 publications

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“…There are many partial interpretations [42,44,46,48,55,57,[69][70][71][72][73] on the NM syntheses from the PLIs, here we summarize them and try to give a general mechanism. It is worth pointing out that the plasmas are operated at tenths kPa to atmospheric pressure and they usually have a small size and low gas temperature due to the volatility of water.…”

Section: Plasma Over Liquidmentioning

confidence: 99%

See 1 more Smart Citation

A review of plasma–liquid interactions for nanomaterial synthesis

Chen¹,

Li²,

Li³

2015

J. Phys. D: Appl. Phys.

302

225

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Over the past decades, a new branch of plasma research, the nanomaterial (NM) synthesis by plasma-liquid interactions (PLIs), is rapidly rising, mainly due to the recently developed various plasma sources operated from low to atmospheric pressures. The PLIs provide novel plasma-liquid interfaces where many physical and chemical processes take place. By exploiting these physical and chemical processes, various NMs ranging from noble metal nanoparticles to graphene nanosheets can be easily synthesized. The currently rapid development and increasingly wide utilization of the PLI method naturally lead to an urgent requirement for presenting a general review. This paper reviews the current status of research on plasma-liquid 2 interactions for nanomaterial syntheses. Focus is on the comprehensive understanding of the synthesis process and perceptive opinions on the present issues and future challenges in this subject.

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Section: Plasma Over Liquidmentioning

confidence: 99%

“…After the work of Koo et al [42], noble metals of Au [43,46,67,71,73,[135][136][137][138][139][140][141][142], Ag [46,69,[143][144][145][146][147], Pt [67], and Pd [148][149][150][151][152][153] NPs were intensively explored by using plasma over liquid configurations.…”

Section: Noble Metalsmentioning

confidence: 99%

A review of plasma–liquid interactions for nanomaterial synthesis

Chen¹,

Li²,

Li³

2015

J. Phys. D: Appl. Phys.

302

225

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show abstract

“…Mainly, four approaches remained under operation: (1) DC plasma discharge in contact to liquid [26][27][28][29], (2) DC glow discharge plasma in contact to liquid [30], (3) pulse plasma discharge inside the liquid [31][32][33][34][35][36], and (4) gas-liquid interface discharge [37]. Hydrogen peroxide was the most probable reaction mechanism to synthesize gold nanoparticles [26][27][28][29].…”

Section: Last and Final Versionmentioning

confidence: 99%

Predictor Packing in Developing Unprecedented Shaped Colloidal Particles

Ali¹,

Lin²,

Yeh³

2018

Preprint

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-Developing particles of different anisotropic shapes are the hot topic since decades as they guarantee some special features of properties not possible through other means. Again, controlling atoms to develop certain size and shape particle is a quite challenging job. In this study, gold particles of different shapes are developed via pulse-based electronphoton-solution interface process. Gold atoms of certain transition state develop monolayer assembly at solution surface around the light glow (known in argon plasma) being generated at bottom of copper capillary (known in cathode). The rate of uplifting gold atoms to solution surface is being controlled by forcing energy (travelling photons) pursuing electrons and high energy photons (in high density) entering to solution. Gold atoms dissociated from the precursor under dissipating heat energy into the solution supplied under propagating photons characteristic current through immersed graphite rod (known in anode). Placing packets of nano shape energy of tuned pulse protocol over compact monolayer assembly comprising transition state atoms develop tiny-sized particles of formed shape. On separation of joint tiny particles into two equilateral triangular-shaped tiny particles, exerting forces of surface format elongate atoms of one-dimensional arrays converting them into structures of smooth elements. Due to immersing level of force, such tiny-shaped particles pack from Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted:

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“…Recent years have seen a proliferation of advanced nanoparticle synthesis techniques -e.g., top-down, bottom-up, micellar methods, and electro-steric/static stabilization -enabling ever greater control over their size, morphology, and composition [1][2][3][4]. Nanoparticles can now be controllably produced that are only a few nanometers or below in size -ultra-small nanoparticles, with subnanometer aggregates of fewer than 20 atoms often called clusters.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of support thickness and particle size effects in HRTEM imaging of metal nanoparticles

et al. 2016

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a b s t r a c tHigh-resolution transmission electron microscopy (HRTEM) examination of nanoparticles requires their placement on some manner of support -either TEM grid membranes or part of the material itself, as in many heterogeneous catalyst systems -but a systematic quantification of the practical imaging limits of this approach has been lacking. Here we address this issue through a statistical evaluation of how nanoparticle size and substrate thickness affects the ability to resolve structural features of interest in HRTEM images of metallic nanoparticles on common support membranes. The visibility of lattice fringes from crystalline Au nanoparticles on amorphous carbon and silicon supports of varying thickness was investigated with both conventional and aberration-corrected TEM. Over the 1-4 nm nanoparticle size range examined, the probability of successfully resolving lattice fringes differed significantly as a function both of nanoparticle size and support thickness. Statistical analysis was used to formulate guidelines for the selection of supports and to quantify the impact a given support would have on HRTEM imaging of crystalline structure. For nanoparticles Z1 nm, aberration-correction was found to provide limited benefit for the purpose of visualizing lattice fringes; electron dose is more predictive of lattice fringe visibility than aberration correction. These results confirm that the ability to visualize lattice fringes is ultimately dependent on the signal-to-noise ratio of the HRTEM images, rather than the point-to-point resolving power of the microscope. This study provides a benchmark for HRTEM imaging of crystalline supported metal nanoparticles and is extensible to a wide variety of supports and nanostructures.

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Synthesis of surfactant-free electrostatically stabilized gold nanoparticles by plasma-induced liquid chemistry

Cited by 189 publications

References 56 publications

A review of plasma–liquid interactions for nanomaterial synthesis

A review of plasma–liquid interactions for nanomaterial synthesis

Predictor Packing in Developing Unprecedented Shaped Colloidal Particles

Statistical analysis of support thickness and particle size effects in HRTEM imaging of metal nanoparticles

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