Main group nanoparticle synthesis using electrical explosion of wires

Abdelkader, Elseddik M.; Jelliss, Paul A.; Buckner, Steven W.

doi:10.1016/j.nanoso.2016.05.001

Cited by 20 publications

(9 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…27,28 This epoxide polymerization methodology has been extended to the capping and passivation of aluminum, magnesium, zinc, and certain other d-block metal NPs produced by electrical explosion of wires (EEW). 29−31 This work established that a minimum metal reducing ability (as quantified by electrode potentials) was necessary to successfully ring-open and polymerize epoxide monomers.…”

Section: Introductionmentioning

confidence: 88%

Poly(methyl methacrylate) as an Environmentally Responsive Capping Material for Aluminum Nanoparticles

2017

Self Cite

View full text Add to dashboard Cite

We present an investigation of the photochemistry of aluminum nanoparticles (Al NPs) capped with poly(methyl methacrylate) (PMMA). Powder X-ray diffraction and Fourier transform infrared spectroscopy with total attenuated reflection confirm the presence of crystalline aluminum cores and the PMMA cap and allow us to confirm the latter’s photodegradation upon exposure to UV light. The PMMA-Al NPs were also characterized by differential scanning calorimetry coupled with thermogravimetric analysis to study the thermal profiles for polymer combustion and metal oxidation exotherms. Transmission electron microscopy confirms that the Al NPs, around 36 nm in diameter, are embedded in the PMMA matrix. Following UV irradiation, the PMMA-Al NPs react considerably faster with alkaline solutions, compared with unphotolyzed samples. Photoactivation of the nanocomposite induces partial decomposition of the PMMA capping layer, exposing the underlying reactive metal cores to the surrounding environment and accelerating its redox reactivity. Photolysis times of 1, 6, 24, and 52 h were investigated to establish a minimum UV exposure time for the activation of the PMMA-Al NPs toward hydrolytic hydrogen gas generation.

show abstract

Section: Introductionmentioning

confidence: 88%

Poly(methyl methacrylate) as an Environmentally Responsive Capping Material for Aluminum Nanoparticles

2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Exploding wire is one of the major preparation methods of commercial NPs of dissolvable metals (except Mg NPs which are produced by laser synthesis). [249,[316][317][318] Despite the availability of NPs of dissolvable metals, their printable inks are barely found, possibly due to the concerns with the reactivity of NPs [319] and the stability of inks. [294] It might be an costeffective strategy to use surfactants, polymers or ligands (removable in the subsequent sintering/annealing processes) as the stabilizing and protecting agents in the printable inks to inhibit the agglomeration and oxidation of metallic NPs.…”

Section: Printing Of Conductors/metalsmentioning

confidence: 99%

“…thermal synthesis [335] and non-thermal plasma synthesis [336] ) or physical methods (e.g. exploding wire [318] and laser ablation [337] ). The plasma-synthesized Ge nanocrystals are transferred into solutions and the resulting solutions are casted on SiO 2 substrate to fabricate semiconducting layers.…”

Section: Printing Of Semiconductorsmentioning

confidence: 99%

Materials, Processes, and Facile Manufacturing for Bioresorbable Electronics: A Review

et al. 2018

View full text Add to dashboard Cite

Bioresorbable electronics refer to a new class of advanced electronics that can completely dissolve or disintegrate with environmentally and biologically benign byproducts in water and biofluids. They have provided a solution to the growing electronic waste problem with applications in temporary usage of electronics such as implantable devices and environmental sensors. Bioresorbable materials such as biodegradable polymers, dissolvable conductors, semiconductors, and dielectrics are extensively studied, enabling massive progress of bioresorbable electronic devices. Processing and patterning of these materials are predominantly relying on vacuum-based fabrication methods so far. However, for the purpose of commercialization, nonvacuum, low-cost, and facile manufacturing/printing approaches are the need of the hour. Bioresorbable electronic materials are generally more chemically reactive than conventional electronic materials, which require particular attention in developing the low-cost manufacturing processes in ambient environment. This review focuses on material reactivity, ink availability, printability, and process compatibility for facile manufacturing of bioresorbable electronics.

show abstract

“…A wire explosion process (WEP) is basically a top-down approach to produce nanoparticles in metal, oxides, nitride, and carbide by properly choosing the ambience and in one step [23,25,26]. The capacitor is charged to the required voltage and once the trigatron switch is closed, capacitor voltage appears across wire, as a result current rises, causing joule heating of the wire, which eventually melts and vaporizes the wire.…”

Section: Experimental Studiesmentioning

confidence: 99%

Enhancement of hydrogen generation using nanoaluminum particles produced by a wire explosion process

Neelmani

Jayaganthan

Raghuraman

et al. 2019

IEEJ Transactions Elec Engng

View full text Add to dashboard Cite

Nanoaluminum particles were generated by a wire explosion process (WEP) in helium, argon, and nitrogen ambiences, by depositing energy equal to the vaporization energy of the conductor material volume. The size and shape of the generated nanoaluminum particles were analyzed using a transmission electron microscope (TEM). X-ray diffraction (XRD) analysis was carried out to characterize the phase in nanoaluminum (Al) particles. Particle size distribution of the produced nano-Al particles follows log-normal distribution and the nanoparticles produced in helium were of smaller size compared to those produced in argon or nitrogen ambience. Hydrogen gas was generated on reacting aluminum nanoparticles with aqueous NaOH solution. It was observed that most of the oxides formed on reaction of Al and aqueous NaOH solution were bayerite at room temperature and boehmite at higher temperature. The formation of bayerite and boehmite was characterized using XRD and TEM studies. The reactions were also carried out at higher temperature to understand the hydrogen generation rate. Molarity of NaOH has a high influence on the rate of hydrogen generation. The rate constant of the reaction was calculated adopting the first order rate law for predicting the amount of hydrogen generation. Nickel (Ni) nanoparticles synthesized by WEP and copper sulfate (CuSO 4 ) were used as catalysts and added to the reaction mixture of Al and aqueous NaOH solution to control the hydrogen generation rate. It was observed that the reaction rate of Al with NaOH medium has increased with the addition of CuSO 4 and Ni nanoparticles due to the microgalvanic effect, thereby enhancing the hydrogen generation rate.

show abstract

Main group nanoparticle synthesis using electrical explosion of wires

Cited by 20 publications

References 44 publications

Poly(methyl methacrylate) as an Environmentally Responsive Capping Material for Aluminum Nanoparticles

Poly(methyl methacrylate) as an Environmentally Responsive Capping Material for Aluminum Nanoparticles

Materials, Processes, and Facile Manufacturing for Bioresorbable Electronics: A Review

Enhancement of hydrogen generation using nanoaluminum particles produced by a wire explosion process

Contact Info

Product

Resources

About