Oxidation kinetics of micron-sized aluminum powder in high-temperature boiling water

Vlaskin, Mikhail S.; Школьников, Е. И.; Bersh, A. V.

doi:10.1016/j.ijhydene.2011.02.131

Cited by 61 publications

(26 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering the ease of creating patterns through mechanical machining, chemical etching and electroforming on metals, they represent materials that offer a high potential as templates. Moreover, there are numerous ways to create an aluminum surface having micro and/or nanostructures including chemical etching [16,17], anodization [18][19][20][21], boiling water [22,23], plasma treatment [22,24,25], laser ablation [26][27][28] and lithography [29][30][31]. Various solutions have been used for chemically etching aluminum surfaces.…”

Section: Introductionmentioning

confidence: 99%

Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Maghsoudi

Momen

Jafari

et al. 2018

Applied Surface Science

View full text Add to dashboard Cite

We describe a simple method for fabricating superhydrophobic high temperature vulcanized (HTV) silicone rubber surfaces by direct replication using a compression molding system. The resulting rubber samples possessed micro-nanostructures on the surface. This micro-and nanoscale roughness produced a water contact angle of >160º and a contact angle hysteresis of <3º. The roughness patterns on chemically etched aluminum surfaces, which served as templates, were successfully replicated on the rubber surfaces. An antistiction coating applied to the template surface ensured that the rubber was completely removed during demolding and that the replicated micro-nanostructures on the silicone surface were preserved. Surface roughness of the aluminum templates was optimized at HCl concentrations of 15 wt.%, with a lower roughness value observed at acid concentrations above and below this value. The developed HTV silicone rubber surfaces also demonstrated a freezing delay and a self-cleaning capacity.

show abstract

Section: Introductionmentioning

confidence: 99%

Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Maghsoudi

Momen

Jafari

et al. 2018

Applied Surface Science

View full text Add to dashboard Cite

show abstract

“…Temperatures beyond 400 °C are required for the further Al oxidation in air, but much lower temperatures may be sufficient in water. Micron sized Al particles are indeed strongly oxidized in boiling water above 230 °C, 52 while Ivanov et al reported almost full oxidation of Al nanoparticles (of 140 nm average size) after 20 min in water at 70 °C. 53 Figure S5 reports the extinction spectra for 210 and 250 nm disk diameters acquired before and after the temperature/absorption measurements performed with laser power never exceeding 6 mW.…”

Section: Resultsmentioning

confidence: 99%

Spectral Shift of the Plasmon Resonance Between the Optical Extinction and Absorption of Gold and Aluminum Nanodisks

et al. 2016

View full text Add to dashboard Cite

Comparing the optical properties of plasmonic nanoparticles in terms of scattering, absorption and extinction is an active and delicate issue in nano-optics. Absorption cross sections are usually difficult to be reliably measured. In this work, the absorption of gold and aluminum nanodisks was measured using quantitative wavefront sensing. We evidence a spectral shift between the retrieved absorption and the extinction maxima. Discrete dipole approximation calculations enabled us to unravel the origins of the spectral shifts, which are different depending on the material. In the case of gold nanodisks, the mismatch between extinction and absorption (∼15 nm) is related to the frequency shift of the plasmonic field intensity between near-field and far-field regimes, respectively probed through the heat generated within the nanoparticles and the optical extinction. For aluminum nanodisks, displaying dipolar plasmon resonances in the wavelength range 700 to 850 nm, the spectral shift between extinction and absorption is ascribed to the presence of interband transitions located on the low energy side of the surface plasmon resonances.

show abstract

“…Using a 100 μm powder, and at a much lower temperature of 615 K, Setiani and coworkers found that approximately 57 mmol of hydrogen was produced in just over 1 hour, which implies a mean reaction rate of approximately 20 cm H 2 3 min −1 g Al −1 . 15 Vlaskin et al reported 95% yield in 10 minutes using a 77.5 μm power at 640 K, 14 implying a mean rate of 117 cm H 2 3 min −1 g Al −1 . In both cases, liquid water was used as the oxidizer.…”

Section: Discussionmentioning

confidence: 99%

Hydrogen production rates of aluminum reacting with varying densities of supercritical water

et al. 2022

View full text Add to dashboard Cite

show abstract

Oxidation kinetics of micron-sized aluminum powder in high-temperature boiling water

Cited by 61 publications

References 25 publications

Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Spectral Shift of the Plasmon Resonance Between the Optical Extinction and Absorption of Gold and Aluminum Nanodisks

Hydrogen production rates of aluminum reacting with varying densities of supercritical water

Contact Info

Product

Resources

About