Chemistry & Earth Sciences: Recent submissions
Now showing items 21-40 of 538
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Integrated lab-on-a-chip optical biosensor using ultrathin silicon waveguide soi mmi device
( MDPI AG , 2020 , Other)Waveguides with sub-100 nm thickness offer a promising platform for sensors. We designed and analyzed multimode interference (MMI) devices using these ultrathin platforms for use as biosensors. To verify our design ... -
Tailoring the reducibility and catalytic activity of CuO nanoparticles for low temperature CO oxidation
( Royal Society of Chemistry , 2018 , Article)Copper oxide (CuO) nanoparticles have received considerable interest as active and inexpensive catalysts for various gas–solid reactions. The CuO reducibility and surface reactivity are of crucial importance for the high ... -
Inhibitory effect of sodium nitrite on corrosion of lead in 0.1 M sodium hydroxide solution
( Council of Scientific and Industrial Research , 1988 , Article)The effect of NaNO2 as an inhibitor for corrosion of lead in 0.1 M NaOH solution has been investigated at different temperatures using the Tafel plot technique. The concentrations of NaNO2 employed are in the range 1-5×10-5. ... -
Polarization resistance study of inhibition of corrosion of lead by sodium benzoate in 0.1 M sodium hydroxide solution
( Council of Scientific and Industrial Research , 1989 , Article)The effect of sodium benzoate (SB) as an inhibitor of corrosion of lead in 0.1 M NaOH solution has been investigated by using the polarization resistance technique. The concentrations of SB employed are in the range 1-5 × ... -
Facile one-step synthesis of supportless porous AuPtPd nanocrystals as high performance electrocatalyst for glucose oxidation reaction
( Elsevier , 2020 , Article)Direct glucose fuel cells (DGFCs) received great interest due to non-toxicity, low cost, and renewability. Herein, we demonstrated the synthesis of novel porous AuPtPd nanocrystals (NCs) via plausible one-pot synthesis ... -
Formation of arsenic sulfide on GaAs surface under illumination in acidified thiourea electrolytes
( Elsevier , 2011 , Article)The present article reports the formation of arsenic sulfide films on GaAs by the potentiodynamic polarization in acidified thiourea (TU) electrolytes under photo-illumination. Oxidation of TU competes with the oxidation ... -
Highly porous PtPd nanoclusters synthesized via selective chemical etching as efficient catalyst for ethanol electro-oxidation
( Elsevier , 2020 , Article)Direct ethanol fuel cells (DEFCs) have received great interest owing to their high power density and environmental friendness. Nevertheless, the designing of active, durable, and efficient anode for DEFCs is a profound ... -
Facile Microwave Synthesis of Hierarchical Porous Copper Oxide and Its Catalytic Activity and Kinetics for Carbon Monoxide Oxidation
( American Chemical Society , 2022 , Article)The synthesis of copper oxide (CuO)-based nanomaterials has received a tremendous deal of interest in recent years. Particularly, the design and development of novel CuO structures with improved physical and chemical ... -
Photoelectrocatalytic hydrogen production on ternary Co-Pi/Ag/TiON nanotube array photocatalysts
( John Wiley and Sons Ltd , 2021 , Article)Ternary Co-Pi-Ag/TiON photocatalysts were designed and fabricated by a facile precipitation and electrochemical strategy. The results showed the superiority of the Co-Pi-Ag/TiON as a promising photoanode for photoelectrochemical ... -
High-frequency viscoelastic measurements of fluids based on microcantilever sensing: New modeling and experimental issues
( Elsevier , 2013 , Article)In general, microrheology is carried out using active or passive particle-tracking techniques. In the present paper, a novel technique based on the out-of-plane bending vibrations of a microcantilever beam immersed into a ... -
Erratum to: Carbon black dispersions in surfactant-based microemulsion — Corrigendum (Journal of Materials Research, (2018), 33, 9, (1301-1307), 10.1557/jmr.2017.451)
( Springer Nature , 2018 , Other)In Youssry et al.1, the incorrect image was provided for Fig. 5. The correct figure is below. -
Physical functionalization of multi-walled carbon nanotubes for enhanced dispersibility in aqueous medium
( Springer Nature , 2020 , Article)Noncovalent functionalization of multi-walled carbon nanotubes (MWCNTs) by anionic surfactants (sodium dodecylbenzene sulfonate; SDBS and sodium cholate; SC) results in stable aqueous dispersions. SDBS showed better ... -
Formulation and rheological characterization of piezoelectric nanofluids
( Elsevier , 2023 , Article)We introduced a novel concept on energy harvesting nanofluids of hybrid piezoelectric ceramic and polymeric (BaTiO3 and PVdF) materials in PDMS. Rheology, rheo-microscope and impedance spectroscopy complementary enabled ... -
Enhanced electrochemical conversion of CO2 into formic acid using PbSO4/AtSn electrode: Catalyst synthesis and process optimization
( Elsevier , 2023 , Article)Electrochemical carbon dioxide (CO2) reduction is among the most promising and effective methods for producing valuable fuels while simultaneously addressing global warming. Numerous metal-based materials showed promising ... -
Efficient electrochemical conversion of CO2 into formic acid using colloidal NiCo@rGO catalyst
( Elsevier , 2024 , Article)A simple approach was used to synthesize a catalyst based on colloidal NiCo with rGO support. The catalyst was uniformly deposited on acid-treated Sn foil using drop-casting method. The prepared NiCo@rGO catalyst was ... -
Microfluidic devices with modified electrochemical detection for biomarkers analysis: A review
( Nova Science Publishers, Inc. , 2014 , Book chapter)Integrated microfluidic systems continue to garner a great deal of attention. This interest can be attributed to the advantages that these microsystems exhibit over conventional separation and detection systems while ... -
Computational study on the nanotubes formation between olsalazine and β-cyclodextrin
( Avestia Publishing , 2017 , Conference Paper)Interests in cyclodextrin-derived nano-assembled supramolecular systems have recently grown notably [1,2]. Cyclodextrins are a family of oligosaccharides that possess very characteristic features of conical shape with ... -
Synchronous spectrofluorimetric study of the supramolecular host–guest interaction of β-cyclodextrin with propranolol: A comparative study
( Elsevier , 2015 , Article)The objective of this work is to assess the use of constant-wavelength synchronous fluorescence spectroscopy (SFS) in comparison to conventional fluorescence spectroscopy (CFS) for the investigation of the supramolecular ... -
Computational Insights on the Electrocatalytic Behavior of [Cp*Rh] Molecular Catalysts Immobilized on Graphene for Heterogeneous Hydrogen Evolution Reaction
( Springer Nature , 2020 , Article)The heterogeneous metal-based molecular electrocatalyst can typically exhibit attractive features compared to its homogeneous analogue including recoverability and durability. As such, it is necessary to evaluate the ... -
The supramolecular host-guest complexation of Vemurafenib with β-cyclodextrin and cucurbit[7]uril as drug photoprotecting systems: A DFT/TD-DFT study
( Elsevier , 2020 , Article)The supramolecular host-guest complexation of the first-line anticancer drug Vemurafenib (VFB) with β-cyclodextrin (β-CD) and cucurbit[7]uril (CB7) is computationally investigated employing the DFT/TD-DFT method in implicit ...