A5080373967- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Semiconductor materials and devices
- Catalytic Processes in Materials Science
- Hydrogen Storage and Materials
- Molecular Junctions and Nanostructures
- Graphene research and applications
- Extraction and Separation Processes
- ZnO doping and properties
- Polydiacetylene-based materials and applications
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- Conducting polymers and applications
- Hybrid Renewable Energy Systems
- Supramolecular Self-Assembly in Materials
- Quantum Dots Synthesis And Properties
- Mesoporous Materials and Catalysis
- MXene and MAX Phase Materials
- Advancements in Solid Oxide Fuel Cells
- Transition Metal Oxide Nanomaterials
General Motors (United States)
2015-2024
Materials Systems (United States)
2016-2024
General Motors (Poland)
2010-2024
Harley-Davidson (United States)
2018-2024
Materials and Systems Research (United States)
2024
General Motors (India)
2022
University of California, Los Angeles
2011-2012
Zhejiang University
2012
University of Science and Technology Beijing
2011-2012
Nankai University
2011-2012
The present work provides a novel one-step synthesis for nitrogen-doped activated carbon. excellent performance of the N-doped AC allows its further application in hybrid-type supercapacitor, which utilizes combination capacitor electrode and Li-ion battery anode.
Limited availability of platinum is a potential threat to fuel cell commercialization. Since the 1970s, alternative catalysts electrochemical reduction oxygen have been obtained from heat treatment at T > 600 degrees C carbon with non-noble metal and source nitrogen atoms. However, process by which activates these materials remains an open question. Here, we report that activation black iron acetate heat-treated in NH(3) comprises three consecutive steps: (i) incorporation atoms carbon, (ii)...
Ultrathin MoS2/N-graphene nanosheets with ≈4 nm thickness exhibit exceptional electrochemical performance. Extension of the defect sites and vacancies results in increase capacity during cycling. As a service to our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited or typeset. Technical support issues arising from (other than missing files) should addressed Please...
Abstract As one of the most promising negative electrode materials in lithium‐ion batteries (LIBs), SnO 2 experiences intense investigation due to its high specific capacity and energy density, relative conventional graphite anodes. In this study, for first time, atomic layer deposition (ALD) is used deposit , containing both amorphous crystalline phases, onto graphene nanosheets (GNS) as anodes LIBs. The resultant ‐graphene nanocomposites exhibit a sandwich structure, and, when cycled...
A highly lithium ionic conductive solid-state electrolyte coating layer significantly increases cathode performance in ion batteries.
A new "star" catalyst: Carbon-supported multiarmed starlike Pt nanowires (see SEM picture) are highly active and stable electrocatalysts for proton-exchange membrane fuel cells. This novel nanostructure shows much improved activity durability over the current commercial Pt/C catalyst made of nanoparticles. Detailed facts importance to specialist readers published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They available submitted by authors....
To better confine the sulfur/polysulfides in electrode of lithium-sulfur (Li/S) batteries and improve cycling stability, we developed a double-layered core-shell structure polymer-coated carbon-sulfur. Carbon-sulfur was first prepared through impregnation sulfur into hollow carbon spheres under heat treatment, followed by coating polymerization to give structure. From study scanning transmission electron microscopy (STEM) images, demonstrated that not only successfully penetrated porous...
Sandwiched structures consisting of carbon coated SnO2 nanorod grafted on graphene have been synthesized based a seed assisted hydrothermal growth to form supported nanorods, followed by nanocarbon coating. As potential anode for high power and energy applications, the hierarchical nanostructures exhibit greatly enhanced synergic effect with an extremely lithium storage capability up 1419 mA h g−1 benefiting from advanced structural features.
Lithium metal batteries have great advantages over state-of-the-art lithium ion in terms of energy density and cost, which present huge opportunities for long-range low-cost electric vehicles the future. However, automotive industry has critical requirements on specific characteristics battery cells, including but not limited to cycle life, working temperature range, fast discharge–charge capability, volume change, safety, so on. In this Focus Review, we discuss both cell- system-level...
Solid-state electrolytes are the key to development of lithium-based batteries with dramatically improved energy density and safety. Inspired by ionic channels in biological systems, a novel class pseudo solid-state biomimetic is reported herein. This achieved complexing anions an electrolyte open metal sites metal-organic frameworks (MOFs), which transforms MOF scaffolds into ionic-channel analogs lithium-ion conduction low activation energy. work suggests emergence new conducting electrolytes.
Abstract Silicon has been identified as a highly promising anode for next-generation lithium-ion batteries (LIBs). The key challenge Si anodes is large volume change during the lithiation/delithiation cycle that results in chemomechanical degradation and subsequent rapid capacity fading. Here we report novel fabrication method hierarchically porous nanospheres (hp-SiNSs), which consist of shell hollow core. On charge/discharge cycling, hp-SiNSs accommodate through reversible inward Li...
High-performance activated carbons derived from the most common egg white are synthesized via a simple biomass transfer process. Hybrid-type lithium-ion supercapacitors (LICs) fabricated utilizing eAC as cathode materials and Si/C nanocomposites anode material. The LIC exhibits high energy density power with an excellent cycling life. As service to our authors readers, this journal provides supporting information supplied by authors. Such peer reviewed may be re-organized for online...
Metallic Li is considered as one of the most promising anode materials for next-generation batteries due to its high theoretical capacity and low electrochemical potential. However, commercialization has been impeded by severe safety issues associated with Li-dendrite growth. Non-uniform Li-ion flux on Li-metal surface formation unstable solid electrolyte interphase (SEI) during plating/stripping process lead growth dendritic mossy structures that deteriorate cycling performance can cause...
Abstract While high sulfur loading has been pursued as a key parameter to build realistic high-energy lithium-sulfur batteries, less attention paid the cathode porosity, which is much higher in sulfur/carbon composite cathodes than traditional lithium-ion battery electrodes. For dense electrode with low porosity desired minimize electrolyte intake, parasitic weight, and cost. Here we report profound impact on discharge polarization, reversible capacity, cell cycling life of batteries by...
Abstract Lithium metal anodes are highly promising for next‐generation rechargeable batteries. However, implication of lithium is hampered by the unstable electrochemical behavior. Herein, fabrication hermetic coatings hybrid silicate on surface using a simple vapor deposition technique under ambient condition reported. Such consist “hard” inorganic moiety that helps to suppress dendrites and “soft” organic enhances toughness. batteries, including Li–LiFePO 4 Li–S made with such coated show...
Hierarchically porous graphite particles are synthesized using a continuous, scalable aerosol approach. The unique architecture provides the with high surface area, fast ion transportation, and good electronic conductivity, which endows resulting supercapacitors energy power densities. This work new material platform for high-performance packing density, is adaptable to battery electrodes, fuel-cell catalyst supports, other applications.
Nanocomposites consisting of the bimetallic carbide Co(6)Mo(6)C(2) supported on graphitic carbon ((g)C) were synthesized in situ by an anion-exchange method for first time. The Co(6)Mo(6)C(2)/(g)C nanocomposites not only chemically stable but also electrochemically stable. catalyst prepared loading Pt nanoparticles onto was evaluated oxygen reduction reaction acidic solution and showed superior activity stability comparison with commercial Pt/C. higher mass Pt-Co(6)Mo(6)C(2)/(g)C indicated...
A one-step microwave-assisted hydrothermal method (MAHM) has been developed to synthesize SnO2/graphene composites. It is shown that fine SnO2 nanoparticles with an average size of 3.5 nm can be homogeneously deposited on graphene nanosheets (GNSs) using this technique. The electronic structure as revealed from X-ray absorption near edge (XANES) shows the are abundant in surface defects oxygen vacancies, which facilitate immobilization onto GNSs by interaction. Carbon K XANES provide direct...