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Surfaces, Volume 6, Issue 4

December 2023 - 12 articles

Cover Story: The present work explores the impact of the Co/S molar ratio on the Oxygen Evolution Reaction (OER) kinetics of cobalt sulfide nanostructures, electrodeposited on a Nickel Foam (NF) substrate. It was found that the Co:S ratio profoundly influenced the structure and morphology of CoxSy@NF electrodes, with the optimum performance to be obtained for an equimolar Co:S ratio of 1:1. Structural and morphological analysis disclosed that the optimum CoS@NF electrocatalyst presented a 3D flower-like nanosheet morphology, offering the smallest particle size and the highest electrochemical active area, which are both conducive to improving the OER kinetics (low overpotential value of 0.28 V and a Tafel slope of 95 mV dec−1). View this paper
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Articles (12)

  • Article
  • Open Access
6 Citations
2,852 Views
24 Pages

The Corrosion Inhibition Performance of Eco-Friendly bis-Schiff Bases on Carbon Steel in a Hydrochloric Solution

  • Arthur Valbon,
  • Neubi F. Xavier,
  • Mariana F. L. P. Carlos,
  • Glauco F. Bauerfeldt,
  • Francisco W. Q. Almeida-Neto,
  • Pedro de Lima-Neto,
  • Marcelo A. Neves,
  • Cláudio E. Rodrigues-Santos and
  • Aurea Echevarria

6 December 2023

Corrosion inhibitors are widely used as an important tool for the prevention and remediation of different materials exposed to corrosive industrial processes. Corrosion inhibitors are usually added to acid pickling solutions to reduce the deteriorati...

  • Feature Paper
  • Article
  • Open Access
7 Citations
3,546 Views
16 Pages

Highly Efficient Cobalt Sulfide Heterostructures Fabricated on Nickel Foam Electrodes for Oxygen Evolution Reaction in Alkaline Water Electrolysis Cells

  • Ioannis Poimenidis,
  • Nikandra Papakosta,
  • Panagiotis A. Loukakos,
  • George E. Marnellos and
  • Michalis Konsolakis

23 November 2023

Non-noble metal electrocatalysts for the oxygen evolution reaction (OER) have recently gained particular attention. In the present work, a facile one-step electrodeposition method is applied in situ to synthesize cobalt sulfide nanostructures on nick...

  • Article
  • Open Access
1 Citations
2,666 Views
13 Pages

Selective Chemical Filters for VOF3: Tailoring MgF2 Filter Selectivity through Surface Chemistry

  • Laurent Jouffret,
  • Jean-Michel Hiltbrunner,
  • Elodie Petit,
  • Ania Selmi,
  • Bertrand Morel and
  • Marc Dubois

19 November 2023

In order to synthesize chemical filters for the selective removal of volatile fluorides, commercial magnesium fluoride MgF2 with high specific surface area (HSA) was investigated. The amount of -OH groups substituting fluorine is not negligible, part...

  • Article
  • Open Access
5 Citations
2,847 Views
14 Pages

Understanding the Effects of Post-Deposition Sequential Annealing on the Physical and Chemical Properties of Cu2ZnSnSe4 Thin Films

  • Diana-Stefania Catana,
  • Mohamed Yassine Zaki,
  • Iosif-Daniel Simandan,
  • Angel-Theodor Buruiana,
  • Florinel Sava and
  • Alin Velea

19 November 2023

Cu2ZnSnSe4 thin films have been synthesized by employing two magnetron-sputtering depositions, interlaced with two sequential post-deposition heat treatments in low vacuum, Sn+Se and Se–rich atmospheres at 550 °C. By employing successive st...

  • Article
  • Open Access
7 Citations
3,248 Views
16 Pages

DFT and MCDS Outcome for a Comparative Analysis of NO, NO2, SO, SO2 and SO3 Gas Adsorption onto a NaMgPO4 (033) Surface

  • Jamal Attarki,
  • Malika Khnifira,
  • Wafaa Boumya,
  • Hind Hajjaoui,
  • Anass Mahsoune,
  • M’hamed Sadiq,
  • Mounia Achak,
  • Noureddine Barka and
  • Mohamed Abdennouri

13 November 2023

The research purpose of this work is to examine the adsorption interaction of gaseous molecules (GMs), such as NO, NO2, SO, SO2, and SO3, with the surface of sodium magnesium phosphate NaMgPO4 (033), in a neutral medium, using two different computati...

  • Article
  • Open Access
16 Citations
4,063 Views
20 Pages

Simple and Intelligent Electrochemical Detection of Ammonia over Cuprous Oxide Thin Film Electrode

  • Samia A. Kosa,
  • Amna N. Khan,
  • Basma Al-Johani,
  • L. A. Taib,
  • M. Aslam,
  • Wafa A. Bawazir,
  • A. Hameed and
  • M. Tahir Soomro

6 November 2023

To realize simple and intelligent electrochemical ammonia (NH3) detection in water, highly dense colloidal copper nanoparticles (CuNPs) were prepared and subsequently deposited onto a glassy carbon electrode (GCE). The CuNPs/GCE was then placed in an...

  • Article
  • Open Access
8 Citations
4,073 Views
20 Pages

Biosynthesis, Optical and Magnetic Properties of Fe-Doped ZnO/C Nanoparticles

  • Omar H. Abd-Elkader,
  • Mai Nasrallah,
  • Lotfi Aleya and
  • Mohamed Nasrallah

24 October 2023

Employing a self-combustion method supported by egg white, pure and Fe-doped ZnO/C nanoparticles successfully biosynthesized. XRD, FTIR, Raman, SEM/EDS and TEM measurements were used to characterize the pure and doped systems. The materials under inv...

  • Review
  • Open Access
11 Citations
4,027 Views
30 Pages

An Outline of Employing Metals and Alloys in Corrosive Settings with Ecologically Acceptable Corrosion Inhibitors

  • Prabu Baskar,
  • Shalini Annadurai,
  • Sushmithaa Panneerselvam,
  • Mayakrishnan Prabakaran and
  • Jongpil Kim

11 October 2023

Researchers have just discovered an alternative to synthetic corrosion inhibitors, which are hazardous and terrible for the ecosystem, to prevent rusting in the environment. A metal corrodes when it is subjected to corrosive media (acid, base, or sal...

  • Article
  • Open Access
2 Citations
2,671 Views
16 Pages

Combined PEO and Spray Pyrolysis Coatings of Phosphate and ZnO for Enhancing Corrosion Resistance in AZ31 Mg Alloy

  • Ashish Kumar Singh,
  • Reinis Drunka,
  • Paula Iesalniece,
  • Ilmars Blumbergs,
  • Ints Steins,
  • Toms-Valdemars Eiduks,
  • Mairis Iesalnieks and
  • Konstantins Savkovs

10 October 2023

Oxide films produced from plasma electrolytic oxidation are porous in structure. While they have some passivating effect in Mg alloys, the pores still lead to corrosion over long periods of exposure. In this study, spray pyrolysis was used to seal th...

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Surfaces - ISSN 2571-9637