Fa
  • Ph.D. (1992)

    mechanical engineering

    mechanical engineering, RWTH, Aachen, Germany

  • M.Sc. (1988)

    Constraction and Design

    mechanical Engineering, RWTH, Aachen, Germany

  • Surface engineering, Corrosion and wear resistant coatings for low and high temperature
  • High temperature tribology and corrosion
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Curriculum Vitae (CV)

Mn-incorporated nickel selenide: an ultra-active bifunctional electrocatalyst for hydrogen evolution and urea oxidation reactions

Meysam Maleki, Ghasem Barati Darband, Alireza Sabour Rouhaghdam, Reza Andaveh, Zahra Mohammad Kazemi
Journal PaperChemical Communications , Volume 58 , Issue 21, 2022 January 1, {Pages 3545-3548 }

Abstract

We report Ni?Mn?Se supported on Ni foam as a highly active and stable bifunctional electrocatalyst that exhibits overpotentials of 28 and 122 mV to reach a current density of 10 mA cm?2 for the hydrogen evolution reaction (HER) and urea oxidation reaction (UOR), respectively, and maintains its stability for over 50 h in both reactions. In addition, an overall urea splitting cell voltage of 1.352 V is needed at the current density of 10 mA cm?2 for the optimized electrode.

Superaerophobic/Superhydrophilic Surfaces as Advanced Electrocatalyst for Hydrogen Evolution Reaction: A Comprehensive Review

Reza Andaveh, Ghasem Barati Darband, Meysam Maleki, Alireza Sabour Rouhaghdam
Journal PaperJournal of Materials Chemistry A , 2022 January 1, {Pages }

Abstract

Using high-efficient electrocatalysts is crucial for a fossil fuels-free future. Although many strategies have been proposed to boost the electrocatalysts’ performance, but the efficient and cost-effective methods are rare. Recently, hydrogen (H2) and oxygen (O2) production via water electrolysis is gaining growing trend. To efficient gas production using electrochemical water splitting (EWS), there are many resistances in electrolysis systems that must be reduced. One of the major resistances in the system that dramatically reduces the system's efficiency is the adhesion of evolved gas bubbles to the surface of electrode. Blocked active sites is occurred when bubbles adhere to the surface. As a result, decrease in mass transfer ability can be expected, which can severely damage gas production efficiency. One of the main techniques that able to reduce bubble adhesion is to make electrocatalysts with superaerophobic …

Corrosion Communications

Ali Zakeri, Elnaz Bahmani, Alireza Sabour Rouh Aghdam
Journal Paper , 2022 January 1, {Pages }

Abstract

Application of green corrosion inhibitors, which reduce corrosion rates to the appropriate level with low environmental impact, is one of the emerging key approaches of controlling corrosion in modern society. From the standpoint of environmental compatibility, this research field is undergoing significant developments. Nowadays, due to increasing ecological awareness, corrosion inhibitors are subject to stringent restrictions and regulations enforced by environmental agencies in a number of nations. According to these requirements, these chemicals must be environmentally acceptable and safe. In light of this, intensive research has been undertaken in recent years aimed at development of green corrosion inhibitors from plant extracts. Being readily available, inexpensive, biodegradable, and safe make these substances promising alternatives to the hazardous conventional corrosion inhibitors. The purpose of this review article is to summarize, in a brief manner, a compilation of recent prominent papers on utilizing plant extracts as sustainable and green corrosion inhibitors. In addition, some discussions were made on the benefits and drawbacks of employing these substances for protection of metals.© 2022 The Author (s). Published by Elsevier BV on behalf of Institute of Metal Research, Chinese Academy of Sciences.

Synergistic Corrosion Inhibition of Benzotriazole and Thiourea for Refineries and Petrochemical Plants

Mahmoud Saberion, Mohammad Hossein Allahyarzadeh, Alireza Sabour Rouhaghdam
Journal PaperProtection of Metals and Physical Chemistry of Surfaces , Volume 58 , Issue 1, 2022 February 1, {Pages 200-215 }

Abstract

In the present work, the synergistic effects of two corrosion inhibitors, thiourea and benzotriazole, on the corrosion behavior of copper in 1 M H2SO4 solution was investigated using potentiodynamic polarization and electrochemical impedance spectroscopy methods. Scanning electron microscope was used to study the surface morphology, and Fourier-transform infrared spectroscopy was employed to investigate the adsorption of corrosion inhibitor and the formed film. Electrochemical test results indicate that the corrosion inhibition is dependent on the concentration of corrosion inhibitor and its molecular structure. Simultaneous use of thiourea and benzotriazole leads to the achievement of higher corrosion inhibition efficiency for low concentrations of the corrosion inhibitors. The highest corrosion inhibition efficiency achieved is 96.6% at benzotriazole and thiourea concentrations of 100 and 50 ppm, respectively …

Highly Active and Durable NiCoSeP Nanostructured Electrocatalyst for Large-Current-Density Hydrogen Production

Meysam Maleki, Alireza Sabour Rouhaghdam, Ghasem Barati Darband, Dabin Han, Sangaraju Shanmugam
Journal PaperACS Applied Energy Materials , Volume 5 , Issue 3, 2022 March 10, {Pages 2937-2948 }

Abstract

Large-scale hydrogen production via electrochemical water splitting requires low-cost and efficient electrocatalysts that work well at high current densities with a low overpotential for the hydrogen evolution reaction (HER). Herein, we report the production of a NiCoSeP nanostructured electrocatalyst by a low-cost, one-step electrodeposition technique. The catalyst exhibits very high current densities at small overpotentials (100 mA cm–2 at 151 mV, 500 mA cm–2 at 286 mV, and 1000 mA cm–2 at 381 mV) in 1.0 M KOH electrolyte. Moreover, NiCoSeP shows excellent HER performance in an acidic medium with small overpotentials of 93 and 131 mV to deliver large current densities of 100 and 500 mA cm–2, respectively. The unique morphology of NiCoSeP, superhydrophilic, and superaerophobic properties could facilitate electrolyte diffusion and rapid delivery of the generated bubble, respectively. Our experimental …

Plant extracts as sustainable and green corrosion inhibitors for protection of ferrous metals in corrosive media: A mini review

Ali Zakeri, Elnaz Bahmani, Alireza Sabour Rouh Aghdam
Journal PaperCorrosion Communications , 2022 April 17, {Pages }

Abstract

Application of green corrosion inhibitors, which reduce corrosion rates to the appropriate level with low environmental impact, is one of the emerging key approaches of controlling corrosion in modern society. From the standpoint of environmental compatibility, this research field is undergoing significant developments. Nowadays, due to increasing ecological awareness, corrosion inhibitors are subject to stringent restrictions and regulations enforced by environmental agencies in a number of nations. According to these requirements, these chemicals must be environmentally acceptable and safe. In light of this, intensive research has been undertaken in recent years aimed at development of green corrosion inhibitors from plant extracts. Being readily available, inexpensive, biodegradable, and safe make these substances promising alternatives to the hazardous conventional corrosion inhibitors. The purpose of this …

Binder-free P-doped Ni-Se nanostructure electrode toward highly active and stable hydrogen production in wide pH range and seawater

Meysam Maleki, Alireza Sabour Rouhaghdam, Ghasem Barati Darband, Dabin Han, Morteza Chehelamirani, Sangaraju Shanmugam
Journal PaperJournal of Electroanalytical Chemistry , Volume 916 , 2022 July 1, {Pages 116379 }

Abstract

Transition metal selenide materials are extensively investigated as electrocatalysts for the hydrogen evolution reaction (HER). Despite having good electrical transportability, they suffer from low abundance catalytic active sites and relatively poor long-term stability. Herein, we demonstrate phosphorous doping in NiSe as an effective strategy to simultaneously boost electrocatalytic activity and stability. The phosphorous doped NiSe catalyst needs the lowest overpotentials of 90, 101, 212, and 296 mV at 10 mAcm−2 in alkaline, acidic, neutral, and seawater electrolytes, respectively, as well as continuous stable operation over 100 h. The high exchange current density of 1.379 mAcm−2, the excellent mass activity of 23.95 Ag−1, and a turnover frequency (TOF) value of 0.339 s−1 at 150 mV indicate the promising electrocatalytic HER performance of the P-doped NiSe catalyst. Our experimental data and theoretical …

Microstructure and Cyclic Oxidation Resistance of Ce-Si Modified Aluminide Coating Deposited by Pack Cementation on Inconel 738LC

Parviz Nourpoor, Soheila Javadian, Alireza Sabour Rouh Aghdam, Farzin Ghadami
Journal Paper , 2022 September 6, {Pages }

Abstract

The synergistic effect of silicon and cerium addition on the oxidation resistance of pack cementation aluminide coating applied on Ni-based superalloy substrate was investigated. The effect of cerium and silicon on the scale morphology, oxidation behavior, and scale spallation tendency are discussed based on the experimental results, using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray analyses (EDX). In addition, the oxidation resistance was evaluated by measuring the weight of samples after each 16-hour cycle at 1100 C for 50 cycles. The experiments indicated that silicon addition to aluminide coating improves the oxidation resistance through the formation of β-NiAl1-nSin and δ-Ni2Al3-nSin and δ-Ni2Si phases. Furthermore, the addition of 1% cerium to modified aluminide enhances the formation of the fine-grained microstructure of the β-NiAl and δ-Ni2Al3 and reduces the outward/inward diffusion of elements (so-called blocking effect) which significantly modifies the hot oxidation resistance. The addition of 2% cerium, owing to the distortion of the β-NiAl and δ-Ni2Al3 phases, strictly decreases the hot oxidation resistance and the coating is exfoliated after 450 h at 1100 C. The cyclic oxidation tests showed that the samples containing 1% cerium and 6% silicon possess the highest hot oxidation resistance in which 2 mg/cm2 weight loss of Ce-Si-aluminide was reported after 800 h. This is attributed to the simultaneous effect of cerium and silicon during the deposition process which reduces the oxygen diffusion and reduces the growth rate of α-Al2O3 during oxidation tests. The α-Al2O3 oxidation …

Microstructure Investigation and Cyclic Oxidation Resistance of Ce-Si-Modified Aluminide Coating Deposited by Pack Cementation on Inconel 738LC

Parviz Nourpoor, Soheila Javadian, Alireza Sabour Rouh Aghdam, Farzin Ghadami
Journal PaperCoatings , Volume 12 , Issue 10, 2022 October 7, {Pages 1491 }

Abstract

The synergistic effect of Si and Ce addition on the oxidation resistance of a pack cementation aluminide coating applied on a Ni-based IN738LC superalloy substrate was investigated in this study. The structural and thermal influences of both Si and Ce, focusing on morphology, oxidation behavior, and scale spallation tendency, are accordingly discussed based on the experimental results using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray analyses (EDX). For this purpose, the oxidation resistance of the modified coatings was evaluated by measuring the weight gain of the coated samples after 16 h for each cycle at 1100 °C for a total of 50 cycles of the oxidation process. The investigations indicated that Si addition to the modified aluminide coating improves the oxidation resistance through the formation of β-NiAl and δ-Ni2Al3 phases, and also δ-Ni2Si phases. Furthermore, the addition of 1% Ce to the modified aluminide coating enhances the formation of the fine-grained microstructure of the β-NiAl and δ-Ni2Al3 and reduces the outward/inward diffusion of elements (so-called blocking effect), which significantly modifies the cyclic oxidation resistance. The oxidation enhancement also may be attributed to synergistic effects of Ce and Si addition during the deposition process that reduce the inward oxygen diffusion and reduce the growth rate of α-Al2O3 during oxidation tests.

An investigation of the wettability and chemical stability of superhydrophobic coatings on titanium

Somayyeh Abbasi, Mohsen Nouri, Alireza Sabour Rouhaghdam
Journal PaperThin Solid Films , Volume 762 , 2022 November 30, {Pages 139541 }

Abstract

This study employs a two-step process to fabricate a superhydrophobic surface on the titanium substrate with outstanding corrosion resistance and chemical stability. Initially, a shot-peening treatment was carried out on the titanium surface, followed by chemical etching. Once the etching process was complete, the surface was modified with Methyltrichlorosilane (MTCS) to lower its surface energy. The impact of shot peening on wettability, corrosion resistance, and long-term chemical stability of the produced superhydrophobic surfaces was then investigated. Scanning electron microscopy images demonstrated the formation of fibrous network structure in the nanoscale, and Fourier transform infrared spectroscopy analysis confirmed the existence of chemical bonds between the functional groups of MTCS and the titanium surface. Furthermore, the corrosion resistance of the superhydrophobic surface was evaluated …

Microstructural analysis and surface studies on Ag-Ge alloy coatings prepared by electrodeposition technique

Elnaz Bahmani, Ali Zakeri, Alireza Sabour Rouh Aghdam
Journal PaperJournal of Materials Science , Volume 56 , Issue 10, 2021 April , {Pages 6427-6447 }

Abstract

Among the main characteristics of silver and its alloys, tarnish resistance as well as surface brightness is essential. Alloying these materials with germanium has been shown to have considerable potential in providing tarnish protection. However, studies regarding the electrodeposited silver-germanium (Ag–Ge) alloy coatings are limited. The main objective of this study is to investigate the electrodeposition process of Ag-Ge alloy coatings with different Ge contents. In this regard, co-electrodeposition of Ag and Ge as an alloy coating was performed on pure copper substrates from a cyanide-based electrolyte. The effect of Ge incorporation on alloy composition, surface morphology, topography, texture, crystalline structure an

A comprehensive study on the microstructure evolution and oxidation resistance of conventional and nanocrystalline MCrAlY coatings

Farzin Ghadami, Alireza Sabour Rouh Aghdam, Soheil Ghadami
Journal PaperScientific Reports , Volume 11 , Issue 1, 2021 January 13, {Pages 21-Jan }

Abstract

Conventional and nanocrystalline MCrAlY coatings were applied by the high-velocity oxy-fuel (HVOF) deposition process. The ball-milling method was used to prepare the nanocrystalline MCrAlY powder feedstock. The microstructure examinations of the conventional and nanocrystalline powders and coatings were performed using X-ray diffraction (XRD), high-resolution field emission scanning electron microscope (FESEM) equipped with energy-dispersive X-ray spectroscopy (EDX), transmission electron microscope (TEM), and X-ray photoelectron spectroscopy (XPS). Williamson–Hall analyzing method was also used for estimation of the crystalline size and lattice strain of the as-milled powders and sprayed coatings. Owing to the investigation of the oxida

Development of hybrid electrodeposition/slurry diffusion aluminide coatings on Ni-based superalloy with enhanced hot corrosion resistance

Ali Zakeri, Mohammad Reza Masoumi Balashadehi, Alireza Sabour Rouh Aghdam
Journal PaperJournal of Composites and Compounds , Volume 3 , Issue 6, 2021 March 28, {Pages 08-Jan }

Abstract

Ni/Co-modified aluminide coatings were prepared on Hastelloy-X superalloy by a combined process of electrodeposition and slurry aluminizing. In this regard, pure layers of Ni and Ni-50wt.% Co were initially applied via electrodeposition process and successive aluminization was carried out by a slurry technique. The microstructural and chemical composition characterization of the specimens revealed that a compact and dense aluminide coating was formed with two-layered structure containing the outer Al-rich b phase and inner interdiffusion zone. Moreover, the presence of pre-electrodeposited layers inhibited the outward diffusion flux of elements from the substrate and effectively suppressed the formation of Kirkendall pores. The hot corrosio

Effect of powder manufacturing process on characteristics of nanostructured MCrAlY coatings: dry vs. wet ball milling

Ali Zakeri, Pouya Tahvili, Elnaz Bahmani, Alireza Sabour Rouh Aghdam
Journal PaperJournal of Composites and Compounds , Volume 3 , Issue 6, 2021 March 28, {Pages 17-Sep }

Abstract

In today’s modern world, it is well-known that the gas turbines have dominated the electricity generation and aerospace industries [1]. The incentive and driving force for further developing the advanced gas turbines arise from the society’s increasing demand for aviation and electricity industries [2]. This could be achieved through increasing the inlet temperature of these engines, which translates to their higher efficiency. In addition, the higher efficiency plays a key role in the carbon emission reduction due to lower fossil fuel consumption. That being said, higher operating temperatures lead to more aggressive conditions for engine components; therefore, new materials with enhanced thermo-mechanical properties along with more ef

Effect of anode position on the incorporation of nano/microparticles during the PEO coating on AZ31B

M Esmaeili, M Asgari, H Daneshmand, M Karimi, AS Rouhaghdam
Journal Paper , , {Pages }

Abstract

Protection of silver electrodeposit surfaces against accelerated and natural atmospheric corrosion by Ge incorporation in Ag structure; a microstructural investigation

E Bahmani, A Zakeri, ASR Aghdam
Journal Paper , , {Pages }

Abstract

Evaluation of PEO Nanocomposite Coating on AZ31 Magnesium Alloy

M Asgari, V Torabinejad, MR Hoseini, G Darband, AS Rouhaghdam
Journal Paper , , {Pages }

Abstract

Microstructural characteristics and oxidation behavior of the modified MCrAlX coatings: A critical review

F Ghadami, A Sabour Rouh Aghdam, S Ghadami
Journal PaperVacuum , Volume 185 , 2021 March 1, {Pages 109980 }

Abstract

Currently, the service temperature of the MCrAlX coating (M = Ni, Co, or NiCo; X = minor elements such as Y, Ce, Si, Ta) either as an overlay or as a bondcoat in some critical engineering parts for gas turbine and aero-engine applications is more than 1000 °C. Therefore, the improvement of thermal stability and service lifetime of the MCrAlX coatings are the key factors that need to be emphasized. Among them, the high-temperature oxidation resistance is one of the key properties of MCrAlX coatings. The key modification processes can be employed to improve the structural properties and oxidation behavior of MCrAlX coatings. These methods mostly include techniques such as vacuum heat treatment, nano-crystallization, pre-oxidation, alloying with the reactive element or rare earth elements, dispersion of oxide particles, laser treatment, spark plasma sintering, hot isostatic pressing, and using multilayered/graded …

The formation, microstructure and hot corrosion behaviour of slurry aluminide coating modified by Ni/Ni-Co electrodeposited layer on Ni-base superalloy

M Masoumi Balashadehi, P Nourpour, A Sabour Rouh Aghdam, MH Allahyarzadeh, A Heydarzadeh, M Hamdi
Journal PaperSurface and Coatings Technology , Volume 402 , 2020 November 25, {Pages 126283 }

Abstract

In this research, microstructure and hot corrosion behaviour of a modified aluminide coating were studied. The coating was formed via a two-step process, Ni/Ni-Co electrodeposition on Ni-base superalloy, Hastelloy-X, followed by slurry aluminising. The obtained coatings with 140???5?μm thickness were characterised by an X-ray diffractometer (XRD) and scanning electron microscope (SEM) equipped with energy-dispersive X-ray spectroscope (EDS) and elemental mapping before and after the corrosion tests. The results showed the β-NiAl for simple and pure Ni pre-plated, and the β-(Ni,Co)Al for Nisingle bondCo pre-plated aluminised samples were formed definitely as a predominant phase. The initial electrodeposited layer performed as a Ni reservo

Single-stage production of glass sealed PEO composite coating on AZ31B

M Asgari, H Daneshmand, Gh Bratai Darband, A Sabour Rouhaghdam
Journal PaperSurfaces and Interfaces , Volume 21 , 2020 December 1, {Pages 100712 }

Abstract

In this study, plasma electrolytic oxidation (PEO) composite coating on AZ31B magnesium alloy was performed in the suspension of glass particles (particle size of 500 nm). The effect of glass particle concentration on corrosion and wear behavior of coatings were investigated by potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), and pin on disk tests. The results showed that the addition of glass particles with 5 g/l concentration enhanced corrosion and wear resistance of the coating due to the filling or sealing coating pores with molten glass. A uniform surface of the composite coating is obtained (0.1 ?m roughness average) at a concentration of 5 g/l. Along with the further increase in concentration, the pre

Current Teaching

  • MS.c.

    Conversion and Organic Coatings

  • MS.c.

    Advanced Techniques for Material Characterization

Teaching History

  • Ph.D.

    Advanced Surface Engineering

  • MS.c.

    Mechanical Aspects of Corrosion

  • 2020
    Paygozar, Shahab
    Production of hydrogen using alternative urea electro-oxidation reaction on Ni-Fe-S-P nanostructured electrode by electrochemical deposition method
  • 2021
    Akbari Kenari, Maede
  • 2021
    Pilehvar, Armineh

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