Results 231 to 240 of about 9,866 (290)

Ultrathin Al2O3‐Coated Biomass Carbon for Sodium‐Ion Batteries via a Synergistic Storage Mechanism

open access: yesCarbon Energy, EarlyView.
An ultrathin Al2O3 coating on biomass‐derived carbon effectively passivates surface defects, stabilizes the SEI, and enables a synergistic “adsorption–intercalation–filling” sodium storage mechanism. This strategy delivers outstanding cycling stability, fast Na+ kinetics, and broad temperature adaptability, demonstrating strong potential for practical ...
Junjun Zhou   +13 more
wiley   +1 more source

Solvent‐Driven Pore Engineering in Coffee‐Derived Activated Hydrochar: Implications for Post‐Combustion CO2 Capture

open access: yesCarbon Energy, EarlyView.
Solvent washing of coffee‐ground hydrochars produces activated carbons with tunable pore sizes while maintaining surface area. Removing non‐polar contaminants enhances microporosity, increasing CO2 uptake by 40%. Moderate pore sizes (9–12 Å) yield optimal CO2:N2 selectivity, whereas smaller pores reduce selectivity due to stronger interactions between ...
Muhammad Irfan Maulana Kusdhany   +4 more
wiley   +1 more source

Vertically Aligned Ion Pathways for Fast Conduction and Uniform Lithium Deposition in Solid‐State Batteries

open access: yesCarbon Energy, EarlyView.
Under an alternating electric field, the lithiated halloysite nanotubes (HNTs–SO₃Li) self‐assemble into a perpendicular orientation, creating continuous pathways with low tortuosity that markedly enhance room‐temperature ionic conductivity. The shortened diffusion path within this alignment enables rapid Li⁺ transport, while the establishment of a ...
Sha Peng   +7 more
wiley   +1 more source

Investigation on the Microstructure and Mechanical Properties of FeGa<sub>3</sub> Surface Film on SKD11 Substrate. [PDF]

open access: yesMaterials (Basel)
Protasius R   +8 more
europepmc   +1 more source

On Indentation Hardness (4th Report)

open access: yesTransactions of the Japan Society of Mechanical Engineers, 1952
openaire   +2 more sources

A Markov approach to credit rating migration conditional on economic states

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We develop a model for credit rating migration that accounts for the impact of economic state fluctuations on default probabilities. The joint process for the economic state and the rating is modelled as a time‐homogeneous Markov chain. While the rating process itself possesses the Markov property only under restrictive conditions, methods ...
Michael Kalkbrener, Natalie Packham
wiley   +1 more source

Home - About - Disclaimer - Privacy