Mohammad Rahimi

Mohammad Rahimi
University of Houston | U of H, UH

Ph.D. in Chemical Engineeeing

About

24
Publications
9,066
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734
Citations
Introduction
Mohammad (Mim) Rahimi currently works as a Postdoctoral Associate at the Department of Chemical Engineering at Massachusetts Institute of Technology. He was previously working at the Kappe Environmental Engineering Labs at Pennsylvania State University, where he obtained his Ph.D. in chemical engineering. Mim's research is mainly focused on addressing issues facing the energy-waster-environment nexus.
Additional affiliations
July 2011 - May 2014
Sharif University of Technology
Position
  • Research Assistant

Publications

Publications (24)
Article
Full-text available
Low-grade heat from geothermal sources and industrial plants is a significant source of sustainable power that has great potential to be converted to electricity. The two main approaches that have been extensively investigated for converting low-grade heat to electrical energy, organic Rankine cycles and solid-state thermoelectrics, have not produc...
Article
Thermally regenerative ammonia batteries (TRABs) have shown great promise as a method to convert low-grade waste heat into electrical power, with power densities an order of magnitude higher than other approaches. However, previous TRABs based on copper electrodes suffered from unbalanced anode dissolution and cathode deposition rates during discha...
Article
Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m⁻²-...
Article
Anthropogenic carbon dioxide (CO2) emission from the combustion of fossil fuels is a major contributor to global climate change and ocean acidification. The implementation of carbon capture and storage technologies has been proposed to mitigate the buildup of this greenhouse gas in the atmosphere. Among these technologies, direct air capture is reg...
Article
Full-text available
Machine learning (ML) is emerging as a powerful approach that has recently shown potential to affect various frontiers of carbon capture, a key interim technology to assist in the mitigation of climate change. In this perspective, we reveal how ML implementations have improved this process in many aspects, for both absorption- and adsorption-based...
Article
Full-text available
The anthropogenic release of greenhouse gases, especially carbon dioxide (CO2), has resulted in a notable climate change and an increase in global average temperature since the mid-20th century [...]
Article
For the effective reduction of global CO2 emissions, it is essential to develop and deploy efficient and cost-effective technologies for CO2 capture, especially from large point sources. We recently developed an electrochemically mediated amine regeneration (EMAR) system to replace traditional thermal desorption for the capture of CO2 from post-com...
Article
Full-text available
In this Opinion, the importance of public awareness to design solutions to mitigate climate change issues is highlighted. A large-scale acknowledgment of the climate change consequences has great potential to build social momentum. Momentum, in turn, builds motivation and demand, which can be leveraged to develop a multi-scale strategy to tackle th...
Article
Electrochemically mediated amine regeneration (EMAR) was recently developed to avoid the use of thermal means to release CO2 captured from post-combustion flue gas in the benchmark amine process. To address concerns related to the high vapor pressure of ethylenediamine (EDA) as the primary amine used in EMAR, a mixture of EDA and aminoethylethanola...
Article
An electrochemically driven proton concentration process was developed for the capture of carbon dioxide (CO 2 ) that was based on modulation of the proton concentration in an electrochemical cell by a proton intercalating MnO 2 electrode. The pH sensitivity of CO 2 hydration was leveraged such that CO 2 was absorbed as bicarbonate and carbonate io...
Article
Full-text available
A thorough experimental investigation of a bench-scale apparatus of the proton concentration process with two symmetrical MnO2 electrodes is presented, with the aim of continuous desorption of CO2 from a K2CO3 solution. The electrodes were fabricated through cathodic deposition, and their chemical states, morphology, and microstructural architectur...
Article
Full-text available
The development of sustainable CO2 capture technologies is critical to address issues associated with global warming. In this context, the concept of an electrochemically driven proton concentration process is developed for the capture of CO2 based on modulation of the proton concentration in an electrochemical cell by a proton intercalating MnO2 e...
Data
Supporting Information for "Improved electrical power production of thermally regenerative batteries using a poly(phenylene oxide) based anion exchange membrane".
Article
Full-text available
In this study, for the first time a statistical analysis based on the response surface methodology (RSM) was employed to investigate individual and interaction effects of key operating parameters of the photocatalytic degradation under visible-light irradiation using Ag-S/PEG/TiO2. Ag-S/PEG/TiO2 is a visible-light-driven photocatalyst and was synth...
Article
h i g h l i g h t s g r a p h i c a l a b s t r a c t A battery based on ammonia and copper salts was used to produce electricity. Quaternary ammonium-based poly(-phenylene oxide) membranes were tested. The synthesized membranes had different ion exchange capacities and thicknesses. The power density of the BTMA membrane (40% DF, 50 mm thick) was 1...
Article
Full-text available
Salinity gradient energy can be directly converted to electrical power using reverse electrodialysis (RED) and other technologies, but reported power densities have been too low for practical applications. Here, the RED stack performance was improved by using 2,6-dihydroxyanthraquinone and ferrocyanide as redox couples. These electrolytes were then...
Article
Full-text available
Mixing entropy batteries (MEBs) are a new approach to generate electricity from salinity differences between two aqueous solutions. To date, MEBs have only been prepared from solutions containing chloride salts, owing to their relevance in natural salinity gradients created from seawater and freshwater. We hypothesized that MEBs could capture energ...
Article
Full-text available
Large amounts of low-grade waste heat (temperatures <130 °C) are released during many industrial, geothermal, and solar-based processes. Using thermally-regenerative ammonia solutions, low-grade thermal energy can be converted to electricity in battery systems. To improve reactor efficiency, a compact, ammonia-based flow battery (AFB) was developed...
Article
Full-text available
A new photocatalyst (Ag–S/PEG/TiO2) was synthesized by adding polyethylene glycol (PEG) to an efficient Ag–S/TiO2 photocatalyst, to obtain a photocatalyst that is highly active under visible light. In addition to Ag–S/PEG/TiO2, Ag–S/TiO2 and pure TiO2 were prepared to compare their properties and activities. Specifically, the morphologies and micro...

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Projects

Projects (3)
Project
https://www.mdpi.com/journal/cleantechnol/special_issues/advanced_oxidation_processes_environmental_remediation
Project
Development of efficient, scalable, and cost-effective electrochemical-based methods for CO2 capture
Project
Development of a thermally regenerative ammonia battery to convert low-grade waste heat to electrical power