A5008609086- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Semiconductor materials and devices
- Perovskite Materials and Applications
- Ion-surface interactions and analysis
- Electrochemical Analysis and Applications
- Conducting polymers and applications
- Advancements in Solid Oxide Fuel Cells
- Fullerene Chemistry and Applications
- Thermal Expansion and Ionic Conductivity
- Magnetic and transport properties of perovskites and related materials
- Diamond and Carbon-based Materials Research
- Force Microscopy Techniques and Applications
- Multiferroics and related materials
- Electronic and Structural Properties of Oxides
- Extraction and Separation Processes
- Advanced Condensed Matter Physics
- Nuclear materials and radiation effects
- Graphene research and applications
- Transition Metal Oxide Nanomaterials
- Advanced Chemical Physics Studies
- Drug Solubulity and Delivery Systems
- Semiconductor materials and interfaces
Boise State University
2016-2025
Micron (United States)
2016-2025
Sichuan University
2025
Materials Science & Engineering
2025
Jinan University
2022-2024
Hainan University
2023-2024
Guizhou Normal University
2024
Qingdao University
2024
Qingdao University of Science and Technology
2024
Wuhan University of Science and Technology
2023-2024
Sodium ion batteries are an attractive alternative to lithium that alleviate problems with availability and cost. Despite several studies of cathode materials for sodium involving layered oxide materials, there few low-voltage metal anodes capable operating reversibly at room temperature. We have synthesized amorphous titanium dioxide nanotube (TiO2NT) electrodes directly grown on current collectors without binders additives use as anode batteries. find only large diameter nanotubes (>80 nm...
Material design in terms of their morphologies other than solid nanoparticles can lead to more advanced properties. At the example iron oxide, we explored electrochemical properties hollow with an application as a cathode and anode. Such contain very high concentration cation vacancies that be efficiently utilized for reversible Li ion intercalation without structural change. Cycling voltage range results capacity (∼132 mAh/g at 2.5 V), 99.7% Coulombic efficiency, superior rate performance...
Tailoring nanoarchitecture of materials offers unprecedented opportunities in utilization their functional properties. Nanostructures vanadium oxide, synthesized by electrochemical deposition, are studied as a cathode material for rechargeable Na-ion batteries. Ex situ and synchrotron characterizations revealed the presence an electrochemically responsive bilayered structure with adjustable intralayer spacing that accommodates intercalation Na(+) ions. Sodium intake induces organization...
Sodium-ion batteries (SIBs) have stepped into the spotlight as a promising alternative to lithium-ion for large-scale energy storage systems. However, SIB electrode materials, in general, inferior performance than their lithium counterparts because Na+ is larger and heavier Li+. Heterostructure engineering strategy overcome this intrinsic limitation achieve practical SIBs. We provide brief review of recent progress heterostructure materials research on how phase interface influences...
Nonaqueous sodium-based batteries are ideal candidates for the next generation of electrochemical energy storage devices. However, despite promising performance at ambient temperature, their low-temperature (e.g., < 0 °C) operation is detrimentally affected by increase in electrolyte resistance and solid interphase (SEI) instability. Here, to circumvent these issues, we propose specific formulations comprising linear cyclic ether-based solvents sodium trifluoromethanesulfonate salt that...
Asymmetric dimers consisting of gold microcrystals and spherical silica colloids have been fabricated by depositing thin films onto the to form half-shells, followed annealing at elevated temperatures. The capability feasibility this procedure demonstrated with titania beads 0.2-2 mum in diameter gamma-Fe2O3/polystyrene@SiO2 core-shell particles 0.5 size. dimensions could be conveniently varied range 100-650 nm controlling thickness and/or colloids. This method provides another route...
Classical molecular dynamics (MD) simulations and M06-2X hybrid density functional theory calculations have been performed to investigate the interaction of various nonaqueous organic electrolytes with Na+ ion in rechargeable Na-ion batteries. We evaluate trends solvation behavior seven common namely pure carbonate solvents (ethylene (EC), vinylene (VC), propylene (PC), butylene (BC), dimethyl (DMC), ethyl methyl (EMC), diethyl (DEC)) four binary mixtures carbonates (EC:PC, EC:DMC, EC:EMC,...
P2-structured Na0.67Ni0.33Mn0.67O2 (PNNMO) is a promising Na-ion battery cathode material, but its rapid capacity decay during cycling remains hurdle. Li doping in layered transition-metal oxide (TMO) materials known to enhance their electrochemical properties. Nevertheless, the influence of at different locations structure has not been investigated. Here, crystallographic role and impact lithium on sites PNNMO investigated LixNa0.67–yNi0.33Mn0.67O2+δ (0.00 ≤ x 0.2, y = 0, 0.1). Lithium...
Solid-electrolyte interphases (SEIs) in advanced rechargeable batteries ensure reversible electrode reactions at extreme potentials beyond the thermodynamic stability limits of electrolytes by insulating electrons while allowing transport working ions. Such selective ion occurs naturally biological cell membranes as a ubiquitous prerequisite many life processes and foundation biodiversity. In addition, can selectively open close channels response to external stimuli (e.g., electrical,...
P2-type Na2/3Ni1/3Mn2/3O2 (PNNMO) has been extensively studied because of its desirable electrochemical properties as a positive electrode for sodium-ion batteries. PNNMO exhibits intralayer transition-metal ordering Ni and Mn Na+/vacancy ordering. The is often considered major impediment to fast Na+ transport can be affected by We show neutron/X-ray diffraction density functional theory (DFT) calculations that Li doping (Na2/3Li0.05Ni1/3Mn2/3O2, LFN5) promotes ABC-type interplanar Ni/Mn...
Abstract High‐manganese content sodium‐ion positive electrodes have received heightened interest as an alternative to contemporary Li‐ion chemistries due their high abundance, low toxicity, and even geographical distribution. However, these materials typically suffer from poor capacity, unstable cycling performance, sluggish Na + kinetics. Herein, we explore a manganese‐based layered transition metal oxide (Na x N 0.25 Mn 0.75 O 2 ) show by X‐ray diffraction (XRD) high‐angle annular...
Expression of a California bay laurel (Umbellularia californica) 12:0-acyl-carrier protein thioesterase, thioesterase (BTE), in developing seeds oilseed rape (Brassica napus) led to the production oils containing up 50% laurate. In these BTE oils, laurate is found almost exclusively at sn-1 and sn-3 positions triacylglycerols (T.A. Voelker, T.R. Hayes, A.C. Cranmer, H.M. Davies [1996] Plant J 9: 229-241). Coexpression coconut (Cocos nucifera) 12:0-coenzyme A-preferring lysophosphatitic acid...
We report an electrochemically driven transformation of amorphous TiO2 nanotubes for Li-ion battery anodes into a face-centered-cubic crystalline phase that self-improves as the cycling proceeds. The intercalation/deintercalation processes Li ions in grown were studied by synchrotron X-ray diffraction and absorption spectroscopies along with advanced computational methods. These techniques confirm spontaneous development long-range order presence high concentration (>75%). adopted cubic...
Electrolytes are an important component of electrochemical energy storage systems and their optimization is critical for emerging beyond lithium ion technologies. Here, integrated computational-experimental approach used to rank-order aid the selection suitable electrolytes a Na-ion battery. We present in silico strategy based on both thermodynamic kinetic descriptors derived from molecular dynamics simulations rationally arrive at optimal batteries. benchmarked various (pure binary mixtures...
Three families of ZnTe magic-sized nanoclusters (MSNCs) were obtained exclusively using polytellurides as a tellurium precursor in one-pot reaction by simply varying the temperature and time only. Different MSNCs exhibit different self-assembling or aggregation behavior, owing to their structure, cluster size, dipole–dipole interactions. The smallest family (F323) does not reveal crystalline structure result assembles into lamellar triangle plates. Continuous heating synthesized F323...
Slow kinetics and low specific capacity of graphite anode significantly limit its applications in the rapidly developing lithium-ion battery (LIB) markets. Herein, we report a carbon framework with ultrafast rate cycling stability for LIBs by nitrogen phosphorus doping. The electrode structure is constructed 3D built from 2D heteroatom-doped graphene layers via pyrolysis self-assembled supramolecular aggregates. synergistic effect nanostructured chemical doping (i.e., N- P-doping) enables...
Interface engineering in electrode materials is an attractive strategy for enhancing charge storage, enabling fast kinetics, and improving cycling stability energy storage systems. Nevertheless, the performance improvement usually ambiguously ascribed to "synergetic effect", fundamental understanding toward effect of interface at molecular level composite remains elusive. In this work, a well-defined nanoscale MoS2 /TiO2 rationally designed by immobilizing TiO2 nanocrystals on nanosheets....