A5068044259- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Machine Learning in Materials Science
- Supercapacitor Materials and Fabrication
- Advanced Battery Technologies Research
- Thermal properties of materials
- Graphene research and applications
- Additive Manufacturing and 3D Printing Technologies
- Advanced Thermoelectric Materials and Devices
- Physics of Superconductivity and Magnetism
- Quantum Dots Synthesis And Properties
- CO2 Reduction Techniques and Catalysts
- Iron-based superconductors research
- Magnetic Properties and Applications
- Catalysis and Oxidation Reactions
- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Additive Manufacturing Materials and Processes
- Thermal Expansion and Ionic Conductivity
- Superconducting Materials and Applications
- Electronic and Structural Properties of Oxides
- Electronic Packaging and Soldering Technologies
- Advanced Materials Characterization Techniques
- Electrospun Nanofibers in Biomedical Applications
- Chalcogenide Semiconductor Thin Films
National Institute of Standards
2024
National Institute of Standards and Technology
2021-2024
University of Maryland, College Park
2017-2024
Material Measurement Laboratory
2021-2024
Abstract The ever‐growing portable electronics and electric vehicle markets heavily influence the technological revolution of lithium batteries (LBs) toward higher energy densities for longer standby times or driving range. Thick electrode designs can substantially improve active material loading by minimizing inactive component ratio at device level, providing a great platform enhancing overall density LBs. However, extensive efforts are still needed to address challenges that accompany...
A highly porous 2D nanomaterial, holey graphene oxide (hGO), is synthesized directly from powder and employed to create an aqueous 3D printable ink without the use of additives or binders. Stable dispersions hydrophilic hGO sheets in water (≈100 mg mL-1 ) can be readily achieved. The shear-thinning behavior enables extrusion-based printing fine filaments into complex architectures, such as stacked mesh structures, on arbitrary substrates. freestanding printed meshes exhibit trimodal...
Abstract The development of new materials and their compositional microstructural optimization are essential in regard to next-generation technologies such as clean energy environmental sustainability. However, discovery have been a frustratingly slow process. Edisonian trial-and-error process is time consuming resource inefficient, particularly when contrasted with vast design spaces 1 . Whereas traditional combinatorial deposition methods can generate material libraries 2,3 , these suffer...
Nanostructured catalysts often face an important challenge: poor stability. Many factors contribute to catalytic degradation, including parasitic chemical reactions, phase separation, agglomeration, and dissolution, leading activity loss especially during long-term reactions. This challenge is shared by a new family of catalysts, multimetallic nanoparticles, which have emerged owing their broad tunability high activity. While significant synthesis-based advances been made, the stability...
Composite materials with ordered microstructures often lead to enhanced functionalities that a single material can hardly achieve. Many biomaterials unusual be found in nature; among them, many possess anisotropic and even directional physical chemical properties. With inspiration from nature, artificial composite rationally designed achieve this behavior desired Here, metallic wood metal continuously filling the vessels is developed, which demonstrates excellent electrical, thermal,...
To address the multitude of issues that accompany wet electrode fabrication techniques, composite lithium-ion battery (LIB) electrodes composed solely active components (active material and conductive additive) are fabricated using a scalable eco-friendly dry processing method known as pressing. accomplish this, nanoporous carbon allotrope (i.e., holey graphene or hG) acts compressible matrix to accommodate incompressible cathode anode powders. The inherent nanoporosity facilitates escape...
Frequency Domain Thermoreflectance (FDTR) is a versatile technique used to measure the thermal properties of thin films, multilayer stacks, and interfaces that govern performance management in semiconductor microelectronics. Reliable property measurements at these length scales (≈10 nm ≈10 μm), where physics transport phonon scattering both grow complexity, are increasingly relevant as electronic components continue shrink. While FDTR promising technique, instruments generally home-built;...
Abstract Silicon carbide (SiC)/carbon nanocomposites exhibit outstanding physical properties as well chemical stability and can be utilized in a variety of potential applications. To synthesize SiC/C requires high specific surface area, moderate agglomeration, good interfacial interaction with the substrate. However, synthesis these desired amelioration two critical aspects—improving bond strength between C SiC dispersing homogenously to avoid agglomeration. In this work, Joule heating...
Quaternary chalcogenides continue to be of interest due the variety physical properties they possess, as well their potential for different applications interest. Investigations on materials with sphalerite crystal structure have only recently begun. In this study we synthesized sulfur-based quaternary chalcogenides, including off-stoichiometric compositions, and investigated temperature-dependent electronic, thermal structural these materials. Insulating semiconducting transport is observed...
To realize high specific capacity Li-metal batteries, a protection layer for the anode is needed. We are carrying out combinatorial screening of Li-alloy thin films as which can undergo significant lithiation with minimum change in volume and crystal structure. Here, we have fabricated lithium-free binary alloy film composition spreads Co 1-xSnx on Cu layers Si substrates. The crystallinity was tuned by varying deposition temperature followed electrochemical to form ternary films....
The Bi-Ni binary system has been of interest due to possible unconventional superconductivity aroused therein, such as time-reversal symmetry breaking in Bi/Ni bilayers or the coexistence and ferromagnetism ${\mathrm{Bi}}_{3}\mathrm{Ni}$ crystals. While Ni acts a ferromagnetic element systems, role strong spin-orbit coupling Bi remained unexplored. In this work, we systematically studied effects stoichiometry on ${\mathrm{Bi}}_{x}{\mathrm{Ni}}_{1--x}$ thin films...
The Bi${-}$Ni binary system has been of interest due to possible unconventional superconductivity aroused therein, such as time-reversal symmetry breaking in Bi/Ni bilayers or the coexistence and ferromagnetism Bi$_3$Ni crystals. While Ni acts a ferromagnetic element systems, role strong spin-orbit-coupling Bi remained unexplored. In this work, we systematically studied effects stoichiometry on Bi$_x$Ni$_{1-x}$ thin films (${x} \approx$ 0.5 0.9) fabricated via composition-spread approach....
The next generation of advanced materials is tending toward increasingly complex compositions. Synthesizing precise composition time-consuming and becomes exponentially demanding with increasing compositional complexity. An experienced human operator does significantly better than a novice but still struggles to consistently achieve precision when synthesis parameters are coupled. time optimize barrier exploring scientifically technologically exciting compositionally materials. This...
Iterative cycles of theoretical prediction and experimental validation are the cornerstone modern scientific method. However, proverbial "closing loop" in experiment-theory practice usually ad hoc, often inherently difficult, or impractical to repeat on a systematic basis, beset by scale time constraint computation phenomena under study. Here, we demonstrate Autonomous MAterials Search Engine (AMASE), where enlist robot science perform self-driving continuous cyclical interaction experiments...