Searched for: author%3A%22Ramdin%2C+M.%22
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Sajeev Kumar, A. (author), Moura de Salles Pupo, M. (author), Petrov, K.V. (author), Ramdin, M. (author), van Ommen, J.R. (author), de Jong, W. (author), Kortlever, R. (author)
Aqueous electrolytes used in CO2 electroreduction typically have a CO2 solubility of around 34 mM under ambient conditions, contributing to mass transfer limitations in the system. Non-aqueous electrolytes exhibit higher CO2 solubility (by 5–8-fold) and also provide possibilities to suppress the undesired hydrogen evolution reaction (HER). On...
journal article 2023
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Ramdin, M. (author), Moultos, O. (author), van den Broeke, L.J.P. (author), Gonugunta, P. (author), Taheri, P. (author), Vlugt, T.J.H. (author)
Electrochemical reduction of carbon dioxide (CO<sub>2</sub>) to useful products is an emerging power-to-X concept, which aims to produce chemicals and fuels with renewable electricity instead of fossil fuels. Depending on the catalyst, a range of chemicals can be produced from CO<sub>2</sub> electrolysis at industrial-scale current densities,...
review 2023
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Oikonomidis, Silvestros (author), Ramdin, M. (author), Moultos, O. (author), Bos, Albert (author), Vlugt, T.J.H. (author), Rahbari, A. (author)
Due to the intermittency of renewable energy sources, alkaline water electrolyzers are typically operated at partial load compared to the nominal design value. It is well-known that gas crossover is dominant at low current densities leading to higher anodic hydrogen content and higher cathodic oxygen content in the separator tanks. High...
journal article 2023
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Chen, Q. (author), Ramdin, M. (author), Vlugt, T.J.H. (author)
The removal of acid gas impurities from synthesis gas or natural gas can be achieved using several physical solvents. Examples of solvents applied on a commercial scale include methanol (Rectisol), poly(ethylene glycol) dimethyl ethers (Selexol), n-methyl-2-pyrrolidone (Purisol), and propylene carbonate (Fluor solvent). Continuous Fractional...
journal article 2023
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Parsana, Vyomesh M. (author), Parikh, Sachin (author), Ziniya, Keval (author), Dave, Hirvita (author), Gadhiya, Piyush (author), Joshi, Kedar (author), Gandhi, Dolly (author), Vlugt, T.J.H. (author), Ramdin, M. (author)
Vapor-liquid equilibrium (VLE) data for the binary systems tetrahydrofuran (THF) + acetic acid (AA) and THF + trichloroethylene (TCE) were measured under isobaric conditions using an ebulliometer. The boiling temperatures for the systems (THF + AA/THF + TCE) are reported for 13/15 compositions and five/six different pressures ranging from 50...
journal article 2023
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Ramdin, M. (author), Vlugt, T.J.H. (author), Selvaraj, S. (author)
Mass transport of different species plays a crucial role in electrochemical conversion of CO (Formula presented.) due to the solubility limit of CO (Formula presented.) in aqueous electrolytes. In this study, we investigate the transport of CO (Formula presented.) and other ionic species through the electrolyte and the membrane, and its...
journal article 2022
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Boor, Vera (author), Frijns, Jeannine E.B.M. (author), Laitinen, Antero T. (author), Goetheer, Earl (author), van den Broeke, L.J.P. (author), Kortlever, R. (author), de Jong, W. (author), Moultos, O. (author), Vlugt, T.J.H. (author), Ramdin, M. (author)
We performed H-cell and flow cell experiments to study the electrochemical reduction of CO2 to oxalic acid (OA) on a lead (Pb) cathode in various nonaqueous solvents. The effects of anolyte, catholyte, supporting electrolyte, temperature, water content, and cathode potential on the Faraday efficiency (FE), current density (CD), and product...
journal article 2022
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Rahbari, A. (author), Hartkamp, Remco (author), Moultos, O. (author), Bos, Albert (author), van den Broeke, L.J.P. (author), Ramdin, M. (author), Dubbeldam, David (author), Lyulin, Alexey V. (author), Vlugt, T.J.H. (author)
One of the important parameters in water management of proton exchange membranes is the electro-osmotic drag (EOD) coefficient of water. The value of the EOD coefficient is difficult to justify, and available literature data on this for Nafion membranes show scattering from in experiments and simulations. Here, we use a classical all-atom...
journal article 2022
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Wasik, Dominika O. (author), Polat, H.M. (author), Ramdin, M. (author), Moultos, O. (author), Calero, Sofia (author), Vlugt, T.J.H. (author)
There is a growing interest in the development of routes to produce formic acid from CO2, such as the electrochemical reduction of CO2 to formic acid. The solubility of CO2 in the electrolyte influences the production rate of formic acid. Here, the dependence of the CO2 solubility in aqueous HCOOH solutions with electrolytes on the...
journal article 2022
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Morrison, A.R.T. (author), Ramdin, M. (author), van den Broeke, L.J.P. (author), de Jong, W. (author), Vlugt, T.J.H. (author), Kortlever, R. (author)
The electrochemical CO2 reduction reaction (CO2RR) is important for a sustainable future. Key insights into the reaction pathways have been obtained by density functional theory (DFT) analysis, but so far, DFT has been unable to give an overall understanding of selectivity trends without important caveats. We show that an unconsidered...
journal article 2022
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Dawass, N. (author), Langeveld, Jilles (author), Ramdin, M. (author), Pérez-Gallent, Elena (author), Villanueva, Angel A. (author), Giling, Erwin J.M. (author), Langerak, Jort (author), van den Broeke, L.J.P. (author), Vlugt, T.J.H. (author), Moultos, O. (author)
Recently, deep eutectic solvents (DES) have been considered as possible electrolytes for the electrochemical reduction of CO2 to value-added products such as formic and oxalic acids. The applicability of pure DES as electrolytes is hindered by high viscosities. Mixtures of DES with organic solvents can be a promising way of designing superior...
journal article 2022
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Ramdin, M. (author), De Mot, Bert (author), Morrison, A.R.T. (author), Breugelmans, Tom (author), van den Broeke, L.J.P. (author), Kortlever, R. (author), de Jong, W. (author), Moultos, O. (author), Vlugt, T.J.H. (author)
Direct electrochemical reduction of CO2 to C2 products such as ethylene is more efficient in alkaline media, but it suffers from parasitic loss of reactants due to (bi)carbonate formation. A two-step process where the CO2 is first electrochemically reduced to CO and subsequently converted to desired C2 products has the potential to overcome...
journal article 2021
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Rahbari, A. (author), Garcia-Navarro, Julio C. (author), Ramdin, M. (author), van den Broeke, L.J.P. (author), Moultos, O. (author), Dubbeldam, David (author), Vlugt, T.J.H. (author)
Force field-based molecular simulations were used to calculate thermal expansivities, heat capacities, and Joule-Thomson coefficients of binary (standard) hydrogen-water mixtures for temperatures between 366.15 and 423.15 K and pressures between 50 and 1000 bar. The mole fraction of water in saturated hydrogen-water mixtures in the gas phase...
journal article 2021
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Laitinen, Antero T. (author), Parsana, Vyomesh M. (author), Jauhiainen, Olli (author), Huotari, Marco (author), van den Broeke, L.J.P. (author), de Jong, W. (author), Vlugt, T.J.H. (author), Ramdin, M. (author)
Formic acid (FA) is an interesting hydrogen (H2) and carbon monoxide (CO) carrier that can be produced by the electrochemical reduction of carbon dioxide (CO2) using renewable energy. The separation of FA from water is challenging due to the strong (cross)association of the components and the presence of a high boiling azeotrope. For the...
journal article 2021
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Korver, Sander (author), Schouten, Eva (author), Moultos, O. (author), Vergeer, Peter (author), Grutters, Michiel M.P. (author), Peschier, Leo J.C. (author), Vlugt, T.J.H. (author), Ramdin, M. (author)
In arson cases, evidence such as DNA or fingerprints is often destroyed. One of the most important evidence modalities left is relating fire accelerants to a suspect. When gasoline is used as accelerant, the aim is to find a strong indication that a gasoline sample from a fire scene is related to a sample of a suspect. Gasoline samples from a...
journal article 2020
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Dawass, N. (author), Wanderley, Ricardo R. (author), Ramdin, M. (author), Moultos, O. (author), Knuutila, Hanna K. (author), Vlugt, T.J.H. (author)
Knowledge on the solubility of gases, especially carbon dioxide (CO2), in monoethylene glycol (MEG) is relevant for a number of industrial applications such as separation processes and gas hydrate prevention. In this study, the solubility of CO2 in MEG was measured experimentally at temperatures of 333.15, 353.15, and 373.15 K. Experimental...
journal article 2020
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Hens, R. (author), Rahbari, A. (author), Caro Ortiz, S.A. (author), Dawass, N. (author), Erdös, M. (author), Poursaeidesfahani, A. (author), Seyed Salehi, H. (author), Celebi, A.T. (author), Ramdin, M. (author), Moultos, O. (author), Dubbeldam, D. (author), Vlugt, T.J.H. (author)
We present a new molecular simulation code, Brick-CFCMC, for performing Monte Carlo simulations using state-of-the-art simulation techniques. The Continuous Fractional Component (CFC) method is implemented for simulations in the NVT/NPT ensembles, the Gibbs Ensemble, the Grand-Canonical Ensemble, and the Reaction Ensemble. Molecule transfers...
journal article 2020
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De Mot, Bert (author), Ramdin, M. (author), Hereijgers, Jonas (author), Vlugt, T.J.H. (author), Breugelmans, Tom (author)
A zero-gap flow electrolyzer with a tin-coated gas diffusion electrode as the cathode was used to convert humidified gaseous CO<sub>2</sub> to formate. The influence of humidification, flow pattern and the type of membrane on the faradaic efficiency (FE), product concentration, and salt precipitation were investigated. We demonstrated that...
journal article 2020
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Rahbari, A. (author), Hens, R. (author), Ramdin, M. (author), Moultos, O. (author), Dubbeldam, D. (author), Vlugt, T.J.H. (author)
In this paper, we review recent advances in the Continuous Fractional Component Monte Carlo (CFCMC) methodology and present a historic overview of the most important developments that have led to this method. The CFCMC method has gained attention for Monte Carlo simulations of adsorption at high loading, and phase and reaction equilibria of...
journal article 2020
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Ramdin, M. (author), Morrison, A.R.T. (author), de Groen, M. (author), van Haperen, M.C.H. (author), De Kler, Robert (author), Irtem, Erdem (author), Laitinen, Antero T. (author), van den Broeke, L.J.P. (author), Breugelmans, Tom (author), Trusler, J. P.Martin (author), de Jong, W. (author), Vlugt, T.J.H. (author)
We use a high-pressure semicontinuous batch electrochemical reactor with a tin-based cathode to demonstrate that it is possible to efficiently convert CO<sub>2</sub> to formic acid (FA) in low-pH (i.e., pH &lt; pK<sub>a</sub>) electrolyte solutions. The effects of CO<sub>2</sub> pressure (up to 50 bar), bipolar membranes, and electrolyte (K...
journal article 2019
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