A5075147971- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced Photocatalysis Techniques
- Heusler alloys: electronic and magnetic properties
- Chalcogenide Semiconductor Thin Films
- CO2 Reduction Techniques and Catalysts
- Supercapacitor Materials and Fabrication
- Polyoxometalates: Synthesis and Applications
- Thin-Film Transistor Technologies
- High Entropy Alloys Studies
- Advanced Thermoelectric Materials and Devices
- GaN-based semiconductor devices and materials
- Advanced Battery Technologies Research
- Metal-Organic Frameworks: Synthesis and Applications
- Inorganic Chemistry and Materials
- Diamond and Carbon-based Materials Research
- Covalent Organic Framework Applications
- Electrochemical Analysis and Applications
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Material Dynamics and Properties
University of Illinois Chicago
2018-2025
Abstract Metal–organic frameworks (MOFs) are promising materials for electrocatalysis; however, lack of electrical conductivity in the majority existing MOFs limits their effective utilization field. Herein, an excellent catalytic activity a 2D copper (Cu)‐based conductive MOF, tetrahydroxyquinone (CuTHQ), is reported aqueous CO 2 reduction reaction (CO RR) at low overpotentials. It revealed that CuTHQ nanoflakes (NFs) with average lateral size 140 nm exhibit negligible overpotential 16 mV...
Lithium-CO2 batteries are attractive energy-storage systems for fulfilling the demand of future large-scale applications such as electric vehicles due to their high specific energy density. However, a major challenge with Li-CO2 is attain reversible formation and decomposition Li2 CO3 carbon discharge products. A fully battery developed overall neutrality using MoS2 nanoflakes cathode catalyst combined an ionic liquid/dimethyl sulfoxide electrolyte. This combination materials produces...
Abstract High‐entropy alloys combine multiple principal elements at a near equal fraction to form vast compositional spaces achieve outstanding functionalities that are absent in with one or two elements. Here, the prediction, synthesis, and multiscale characterization of 2D high‐entropy transition metal dichalcogenide (TMDC) four/five metals is reported. Of these, electrochemical performance five‐component alloy highest configurational entropy, (MoWVNbTa)S 2 , investigated for CO conversion...
Abstract Transition metal dichalcogenide (TMDCs) alloys could have a wide range of physical and chemical properties, ranging from charge density waves to superconductivity electrochemical activities. While many exciting behaviors unary TMDCs been demonstrated, the vast compositional space TMDC has remained largely unexplored due lack understanding regarding their stability when accommodating different cations or chalcogens in single‐phase. Here, theory‐guided synthesis approach is reported...
Abstract Lithium–oxygen (Li–O 2 ) batteries possess the highest theoretical energy density (3500 Wh kg −1 ), which makes them attractive candidates for modern electronics and transportation applications. In this work, an inexpensive, flexible, wearable Li–O battery based on bifunctional redox mediator of InBr 3 , MoS cathode catalyst, Fomblin‐based oxygen permeable membrane that enable long‐cycle‐life operation in pure oxygen, dry air, ambient air is designed, fabricated, tested. The...
Abstract Lithium‐air batteries based on CO 2 reactant (Li–CO ) have recently been of interest because it has found that reversible Li/CO electrochemistry is feasible. In this study, a new medium‐entropy cathode catalyst, (NbTa) 0.5 BiS 3 , enables the to operate at high rates presented. This medium entropy catalyst combined with an ionic liquid‐based electrolyte blend give Li–CO battery operates current density 5000 mA g −1 and capacity mAh for up 125 cycles, far exceeding reported values in...
Lithium-oxygen batteries are among the most attractive alternatives for future electrified transportation. However, their practical application is hindered by many obstacles. Due to insulating nature of Li2 O2 product and slow kinetics reactions, attaining sustainable low charge overpotentials at high rates becomes a challenge resulting in battery's early failure round trip efficiency. Herein, outstanding characteristics discovered conductive metal organic framework (c-MOF) that promotes...
Abstract High Entropy Alloys (HEAs) have garnered attention due to their remarkable tribological attributes. Predominantly, failure mechanisms in HEAs emanate from stress‐induced dislocations, culminating crack propagation and film delamination. In this study, we report on the synthesis of 2D HEA (MoWNbTaV) 0.2 S 2 which facilitates shear‐induced energy dissipation at sliding interfaces. The ball‐on‐disk investigations demonstrate unprecedentedly low average coefficients friction (0.076)...
Transition metal dichalcogenides (TMDCs) have garnered much attention recently due to their remarkable performance for different electrochemical systems. In this study, we report on the synthesis and catalysis of less studied TMDC nanoflakes (NFs) with a design space comprised three transition metals (rhenium, ruthenium, iridium) chalcogens (sulfur, selenium, tellurium) oxygen reduction evolution reactions (ORR OER) in an aprotic hybrid electrolyte containing 0.1 M lithium...
Abstract Li‐air batteries are considered strong candidates for the next‐generation energy storage systems designed electrical transportation. However, low cyclability and current rates two major drawbacks that hinder them from further realization. These issues necessitate discovery of novel materials to significantly enhance redox process discharge products. In this study, a catalytic system comprised tin sulfide (SnS) nanoflakes as solid catalyst iodide (SnI 2 ) dual‐functional electrolyte...
Adv. Funct. Mater. 2023, 33, 2300814 DOI: 10.1002/adfm.202300814 In the original version of this article, author's name Jordi Cabana was incorrect. This correction does not affect conclusions article. The authors apologize for any inconvenience caused.
Transition-metal dichalcogenides (TMDCs) such as MoS2 are Earth-abundant catalysts that attractive for many chemical processes, including the carbon dioxide reduction reaction (CO2RR). While studies have correlated synthetic preparation and architectures with macroscopic electrocatalytic performance, not much is known about state of under functional conditions, particularly its interactions target molecules like CO2. Here, we combine operando Mo K- S K-edge X-ray absorption spectroscopy...
One-dimensional (1D) materials demonstrate anisotropic in-plane physical properties that enable a wide range of functionalities in electronics, photonics, valleytronics, optoelectronics, and catalysis. Here, we undertake an in-depth study the growth mechanism for equimolar midentropy alloy (NbTaTi)0.33S3 nanoribbons as model system 1D transition metal trichalcogenide structures. To understand thermodynamic kinetic effects process, energetically preferred phases at different synthesis...
Abstract 1D materials, such as nanofibers or nanoribbons are considered the future ultimate limit of downscaling for modern electrical and electrochemical devices. Here, first time, a solid solution transition metal trichalcogenide (TMTC), Nb 1‐ x Ta S 3 , successfully synthesized with outstanding electrical, thermal, characteristics rivaling performance the‐state‐of‐the art materials each application. This material shows nearly unchanged sheet resistance (≈740 Ω sq −1 ) versus bending...
The rechargeable lithium-oxygen (Li-O2) battery has the highest theoretical specific energy density of any batteries and could transform storage systems if a practical device be attained. However, among numerous challenges, which are all interconnected, polarization due to sluggish kinetics, low cycle life, small capacity, slow rates. In this study, we report on use KMnO4 generate colloidal electrolyte made up MnO2 nanoparticles. resulting provides redox mediator for reducing charge...
We investigate the phase behavior of ternary mixtures ionic liquid, organic solvent, and lithium salt by molecular dynamics simulations. find that at room temperature, electrolyte separates into distinct phases with specific compositions; an ion-rich domain contains a fraction solvent molecules second pure solvent. The separation is shown to be entropy-driven independent concentration. Phase only observed microsecond time scales greatly affects transport properties electrolyte.
Although far less studied, lithium-CO 2 (Li-CO ) batteries are attractive energy storage systems for fulfilling the demand future large-scale applications such as electric vehicles and grid due to their higher specific density (~1876 Wh/kg) compared those of commonly used lithium-ion (~265 lead-acid (~30-40 batteries. However, major challenges with these low cyclability poor reversibility discharge products (e.g., Li CO 3 carbon) during battery cycling. An ideal system must operate in carbon...
Transition-metal dichalcogenides (TMDCs) such as MoS2 are earth-abundant catalysts that attractive for many chemical processes, including the carbon dioxide reduction reaction (CO2RR). While studies have correlated synthetic preparation and architectures with macroscopic electrocatalytic performance, not much is known about state of under functional conditions, particularly its interactions target molecules like CO2. Here, we combine operando Mo K- S K-edge X-ray absorption spectroscopy...