A5038064212- Electrocatalysts for Energy Conversion
- CO2 Reduction Techniques and Catalysts
- Advanced battery technologies research
- Ionic liquids properties and applications
- Fuel Cells and Related Materials
- Carbon dioxide utilization in catalysis
- Advancements in Solid Oxide Fuel Cells
- Electrochemical Analysis and Applications
- Catalytic Processes in Materials Science
- Membrane-based Ion Separation Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Carbon Dioxide Capture Technologies
- Phase Change Materials Research
- Catalysis and Hydrodesulfurization Studies
- Covalent Organic Framework Applications
- Conducting polymers and applications
- Geothermal Energy Systems and Applications
- Catalysis and Oxidation Reactions
- Supercapacitor Materials and Fabrication
- Catalysis for Biomass Conversion
- Adsorption and Cooling Systems
- Electric and Hybrid Vehicle Technologies
- Advancements in Battery Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Lignin and Wood Chemistry
Khalifa University of Science and Technology
2025
Institute of Catalysis and Petrochemistry
2025
University of Toronto
2019-2024
University of New Brunswick
2019-2022
Daegu Gyeongbuk Institute of Science and Technology
2022
King Abdullah University of Science and Technology
2022
University of Waterloo
2016-2020
Dokuz Eylül University
2016
Electrolysis offers an attractive route to upgrade greenhouse gases such as carbon dioxide (CO2) valuable fuels and feedstocks; however, productivity is often limited by gas diffusion through a liquid electrolyte the surface of catalyst. Here, we present catalyst:ionomer bulk heterojunction (CIBH) architecture that decouples gas, ion, electron transport. The CIBH comprises metal superfine ionomer layer with hydrophobic hydrophilic functionalities extend ion transport from tens nanometers...
Carbon dioxide electroreduction (CO2R) is being actively studied as a promising route to convert carbon emissions valuable chemicals and fuels. However, the fraction of input CO2 that productively reduced has typically been very low, <2% for multicarbon products; balance reacts with hydroxide form carbonate in both alkaline neutral reactors. Acidic electrolytes would overcome this limitation, but hydrogen evolution hitherto dominated under those conditions. We report concentrating potassium...
Charging into epoxides Ethylene oxide is a strained, reactive molecule produced on vast scale as plastics precursor. The current method of synthesis involves the direct reaction ethylene and oxygen at high temperature, but original protocol relied reduction chlorine to produce chlorohydrin intermediate. Leow et al. report room temperature that returns route uses electrochemistry generate it catalytically from chloride (see Perspective by Barton). This efficient process water in place can be...
Abstract Electrochemical reduction of CO 2 (CO R) to formic acid upgrades waste ; however, up now, chemical and structural changes the electrocatalyst have often led deterioration performance over time. Here, we find that alloying p-block elements with differing electronegativities modulates redox potential active sites stabilizes them throughout extended R operation. Active Sn-Bi/SnO surfaces formed in situ on homogeneously alloyed Bi 0.1 Sn crystals stabilize R-to-formate pathway 2400 h...
The electroreduction of carbon dioxide (CO2RR) to valuable chemicals is a promising avenue for the storage intermittent renewable electricity. Renewable methane, obtained via CO2RR using electricity as energy input, has potential serve carbon-neutral fuel or chemical feedstock, and it particular interest in view well-established infrastructure its storage, distribution, utilization. However, methane still suffers from low selectivity at commercially relevant current densities (>100 mA cm–2)....
Abstract In alkaline and neutral MEA CO 2 electrolyzers, rapidly converts to (bi)carbonate, imposing a significant energy penalty arising from separating the anode gas outlets. Here we report electrolyzer uses bipolar membrane (BPM) convert (bi)carbonate back , preventing crossover; that surpasses single-pass utilization (SPU) limit (25% for multi-carbon products, C 2+ ) suffered by previous neutral-media electrolyzers. We employ stationary unbuffered catholyte layer between BPM cathode...
Abstract Membrane electrode assembly (MEA) electrolyzers offer a means to scale up CO 2 -to-ethylene electroconversion using renewable electricity and close the anthropogenic carbon cycle. To date, excessive coverage at catalyst surface with limited active sites in MEA systems interferes carbon-carbon coupling reaction, diminishing ethylene production. With aid of density functional theory calculations spectroscopic analysis, here we report an oxide modulation strategy which introduce silica...
Acidic water electrolysis enables the production of hydrogen for use as a chemical and fuel. The acidic environment hinders on non-noble catalysts, result sluggish kinetics associated with adsorbate evolution mechanism, reliant it is four concerted proton-electron transfer steps. Enabling faster mechanism catalysts will help to further advance electrolysis. Here, we report evidence that doping Ba cations into Co3O4 framework form Co3-xBaxO4 promotes oxide path simultaneously improves...
Direct electrolysis of pH-neutral seawater to generate hydrogen is an attractive approach for storing renewable energy. However, due the anodic competition between chlorine evolution and oxygen reaction (OER), direct splitting suffers from a low current density limited operating stability. Exploration catalysts enabling OER overpotential below hypochlorite formation (≈490 mV) critical suppress chloride facilitate splitting. Here, proton-adsorption-promoting strategy increase rate reported,...
The renewable-electricity-powered CO
Metal borides/borates have been considered promising as oxygen evolution reaction catalysts; however, to date, there is a dearth of evidence long-term stability at practical current densities. Here we report phase composition modulation approach fabricate effective borides/borates-based catalysts. We find that metal borides in-situ formed borates are responsible for their high activity. This knowledge prompts us synthesize NiFe-Boride, and use it templating precursor form an active...
Performing CO2 reduction in acidic conditions enables high single-pass conversion efficiency. However, a faster kinetics of the hydrogen evolution reaction compared to limits selectivity toward multicarbon products. Prior studies have shown that adsorbed hydroxide on Cu surface promotes neutral and alkaline conditions. We posited limited species could contribute low Here we report an electrodeposited catalyst suppresses formation selective Using situ time-resolved Raman spectroscopy, show...