A5064187866- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Advanced battery technologies research
- 2D Materials and Applications
- Bone Tissue Engineering Materials
- Graphene and Nanomaterials Applications
- MXene and MAX Phase Materials
- Graphene research and applications
- Extraction and Separation Processes
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Nanoparticle-Based Drug Delivery
- Gas Sensing Nanomaterials and Sensors
- Advanced Nanomaterials in Catalysis
- Iron Metabolism and Disorders
- Laser-Ablation Synthesis of Nanoparticles
- Dielectric materials and actuators
- Synthesis and properties of polymers
- Kidney Stones and Urolithiasis Treatments
- Nanopore and Nanochannel Transport Studies
- Conducting polymers and applications
- Transition Metal Oxide Nanomaterials
- Crystallization and Solubility Studies
- Inorganic Chemistry and Materials
University of Illinois Chicago
2015-2021
Recent isolation of black phosphorus atomic layers (known as phosphorene) has revealed its great potential for use an alternative 2D semiconductor in many areas electronics and optoelectronics. Liquid-phase exfoliation is utilized to produce high-quality nanoflakes with thicknesses down a monolayer the form uniform stable dispersions, allowing pace toward practical applications.
The composition, structure, and the formation mechanism of solid–electrolyte interphase (SEI) in lithium-based (e.g., Li-ion Li metal) batteries have been widely explored literature. However, very little is known about ion transport through SEI. Understanding underlying diffusion processes across SEI could lead to a significant progress, enabling performance increase improving safety aspects batteries. Herein, we report results first-principles density functional theory calculations on...
Black phosphorus (BP) atomic layers are known to undergo chemical degradation in humid air. Yet more robust configurations such as films, composites, and embedded structures, BP can potentially be utilized a large number of practical applications. In this study, we explored the sensing characteristics films observed an ultrasensitive selective response toward air with trace-level detection capability very minor drift over time. Our experiments show that drain current sensor increases by ∼4...
While 3D printing of rechargeable batteries has received immense interest in advancing the next generation energy storage devices, challenges with electrolytes still remain. Additional processing steps such as solvent evaporation were required for earlier studies electrolyte fabrication, which hindered simultaneous production electrode and an all-3D-printed battery. Here, a novel method is demonstrated to fabricate hybrid solid-state using elevated-temperature direct ink writing technique...
Rechargeable zinc (Zn) batteries suffer from poor cycling performance that can be attributed to dendrite growth and surface-originated side reactions. Herein, we report of Zn metal anode improved significantly by utilizing monolayer graphene (Gr) as the electrodeposition substrate. Utilizing microscopy X-ray diffraction techniques, demonstrate electrodeposited on Gr substrate has a compact, uniform, nondendritic character. The layer, due its high lattice compatibility with Zn, provides low...
Thermal runaways triggered by the oxygen release from oxide cathode materials pose a major safety concern for widespread application of lithium ion batteries. Utilizing in situ aberration-corrected scanning transmission electron microscopy (STEM) and energy loss spectroscopy (EELS) at high temperatures, we show that LixCoO2 crystals is occurring surface particles. We correlated this local evolution structure with phase transitions spanning layered to spinel then rock salt upon exposure...
Abstract Dendritic growth of lithium (Li) has severely impeded the practical application Li‐metal batteries. Herein, a 3D conformal graphene oxide nanosheet (GOn) coating, confined into woven structure glass fiber separator, is reported, which permits facile transport Li‐ions thought its structure, meanwhile regulating Li deposition. Electrochemical measurements illustrate remarkably enhanced cycle life and stability anode, explained by various microscopy modeling results. Utilizing scanning...
Abstract Despite significant interest toward solid‐state electrolytes owing to their superior safety in comparison liquid‐based electrolytes, sluggish ion diffusion and high interfacial resistance limit application durable high‐power density batteries. Here, a novel quasi‐solid Li + conductive nanocomposite polymer electrolyte containing black phosphorous (BP) nanosheets is reported. The developed successfully cycled against metal (over 550 h cycling) at 1 mA cm −2 room temperature. cycling...
Electrochemistry is central to applications in the field of energy storage and generation. However, it has advanced far more slowly over last two decades, mainly because a lack suitable affordable catalysts. Here, we report synthesis highly crystalline layered three-dimensional (3D) molybdenum disulfide (MoS2) catalysts with bare Mo-edge atoms demonstrate their remarkable performance for hydrogen evolution reaction (HER). We found that Mo-edge-terminated 3D MoS2 directly grown on graphene...
Despite many theoretical predictions indicating exceptionally low energy barriers of ionic transport in phosphorene, the pathways this two-dimensional (2D) material has not been experimentally demonstrated. Here, using situ aberration-corrected transmission electron microscopy (TEM) and density functional theory, we studied sodium ion phosphorene. Our high-resolution TEM imaging complemented by loss spectroscopy demonstrates a precise description anisotropic ions migration along [100]...
Abstract Proper distribution of thermally conductive nanomaterials in polymer batteries offers new opportunities to mitigate performance degradations associated with local hot spots and safety concerns batteries. Herein, a direct ink writing (DIW) method is utilized fabricate polyethylene oxide (PEO) composite polymers electrolytes (CPE) embedded silane‐treated hexagonal boron nitride (S‐hBN) platelets free any volatile organic solvents. It observed that the S‐hBN are well aligned printed...
Abstract LiCoO 2 is a prime example of widely used cathodes that suffer from the structural/thermal instability issues lead to release their lattice oxygen under nonequilibrium conditions and safety concerns in Li‐ion batteries. Here, it shown an atomically thin layer reduced graphene oxide can suppress Li x CoO particles improve structural stability. Electrochemical cycling, differential electrochemical mass spectroscopy, scanning calorimetry, situ heating transmission electron microscopy...
Reliable fabrication of lateral interfaces between conducting and semiconducting 2D materials is considered a major technological advancement for the next generation highly packed all-2D electronic circuitry. This study employs seed-free consecutive chemical vapor deposition processes to synthesize high-quality MoS2 -graphene heterostructures comprehensively investigated their properties through combination various experimental techniques theoretical modeling. These results show that devices...
The structural character and mechanical stability of solid-electrolyte interphase (SEI) play a critical role in the formation dendrites lithium metal batteries (LMBs). However, due to complex structures SEI, mechanisms by which nucleate at interface Li SEI layer are not well understood. In this work, we employed first-principles calculations using density functional theory (DFT) study innermost grain-structured on surface. grain LiF/LiF, Li2O/Li2O, LiF/Li2O their interaction with surface...
Developing an electrolyte candidate with a wide voltage window, highly reversible cycling Mg-metal anode, and without the use of any flammable solvents is major challenge for rechargeable Mg batteries. While there have been several reports on Mg2+-conducting polymer electrolytes high ionic conductivities, studies to determine their performance Mg-deposition overpotentials scarce. Here, we report composite that exhibits anode at room temperature. The synthesized has conductivity 0.16 mS cm–1...
Recently, two-dimensional (2D) nanomaterials are gaining tremendous attention as novel antibacterial platforms to combat against continuously evolving antimicrobial resistance levels. Among the family of 2D nanomaterials, black phosphorus (BP) nanosheets have demonstrated promising potential for biomedical applications. However, there is a need gain nanoscale insights activity BP which lies at center technical challenges.
As one of the most promising energy storage technologies, zinc (Zn)‐metal batteries (ZMBs) have attracted significant attention due to outstanding properties Zn, including high density (820 mAh g −1 /5855 cm −3 ), abundance, low cost, reactivity, multielectron redox capacity, compatibility with aqueous electrolytes, equilibrium potential (−0.76 V vs SHE), stability, safety, and environmental benignity. Yet, existence some major issues such as surface‐originated parasitic reactions (e.g.,...
Zinc (Zn) aqueous rechargeable batteries (ZBs) have shown a tremendous success in various applications due to their environmental friendliness, multi-electron capacity, high abundance, safety and low cost; however, analogous Li-ion battery counterparts, they suffer from the dendrite formation leading decrease capacity eventual failure. Despite many studies reporting good performance partial dendrites suppression, there been little theoretical systematic of Zn electrodeposits morphology...
Abstract Calcium oxalate (CaOx) is the major phase in kidney stones and primary calcium storage medium plants. CaOx can form crystals with different lattice types, water contents, crystal structures. However, conditions mechanisms leading to nucleation of particular are unclear. Here, liquid‐cell transmission electron microscopy atomistic molecular dynamics simulations used study situ at conditions. The observations reveal that rhombohedral monohydrate (COM) nucleate via a classical pathway,...