Results 241 to 250 of about 739,004 (301)

Enhancing the d–Electrocatalytic Activity of MXene Through Defect Engineering

open access: yesCarbon Energy, EarlyView.
Applications of MXene. ABSTRACT Due to their versatile and tunable surface and bulk chemistry, MXenes have great potential as electrocatalysts for batteries and supercapacitors. When compared with other electrocatalytic processes, in electrocatalytic reactions, MXenes could improve ion diffusion and charge transfer by either providing functional groups
Chenxue Wang   +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

Bioinspired Ultrastrong and Ion‐Selective Gel Electrolytes by Interfacial Coacervation for High‐Performance Lithium‐Metal Batteries

open access: yesCarbon Energy, EarlyView.
An ultrastrong, hierarchically nanoporous gel polymer electrolyte (GPE) was fabricated via poly(ionic liquid)‐induced interfacial coacervation of cellulose nanofibrils. Its cascade ion‐conduction network enables dual‐mode Li⁺ transport via nanoconfinement and interstitial hopping. The GPE enables stable cycling of high mass loading battery (LiFePO₄, 16 
Dong Lv   +7 more
wiley   +1 more source

Synergistic Fe–Si Dual‐Site Pathway Engineering in Biomass‐Derived Carbon Matrix for High‐Performance Oxygen Reduction Reaction

open access: yesCarbon Energy, EarlyView.
We report a dual‐atomic Si–Fe–N–C catalyst synthesized from nitrogen‐rich pinecones and an Fe porphyrin precursor. The inherent Si and N in pinecones form a porous Si–N–C framework that stabilizes Fe atoms during pyrolysis, yielding robust Si–Fe dual sites.
Min Su Cho   +14 more
wiley   +1 more source

Self‐Supporting Pt–C60@GO Catalytic Cathodes for Advanced Flexible Li–O2 Batteries

open access: yesCarbon Energy, EarlyView.
A self‐supporting three‐dimensional Pt–C60@GO cathode was developed for a flexible Li–O2 battery, which demonstrates remarkable electrocatalytic activity and electrochemical stability, including a high areal capacity of 3.70 mAh cm−2, a low cell overpotential of 0.48 V, and an excellent cycle stability exceeding 100 cycles.
Zhiguang Zhao   +12 more
wiley   +1 more source

Research Progress on Halide Solid‐State Electrolytes: Synthesis, Mechanism, and Modification

open access: yesCarbon Energy, EarlyView.
This review comprehensively summarizes the research progress on halide solid‐state electrolytes, including their classifications, synthesis methods, ion conduction mechanisms, and modification strategies. It also proposes effective modification strategies to address critical issues, such as air stability and interface compatibility.
Weifeng Shen   +20 more
wiley   +1 more source

Ultrafast Sodium‐Ion Storage in Self‐Doped 2D PVP‐VS4/Ti3C2Tx Hybrids for High‐Performance Sodium‐Ion Half/Full Batteries

open access: yesCarbon Energy, EarlyView.
Self‐doped PVP‐VS4/Ti3C2Tx with sulfur vacancies enhances the structural stability and exhibits excellent electrochemical performance. ABSTRACT Transition metal sulfides demonstrate remarkable theoretical specific capacities, making them highly desirable anode materials for sodium‐ion batteries (SIBs).
Mingxuan Tang   +5 more
wiley   +1 more source

Enabling Wide‐Temperature Range Li‐S Batteries via Asymmetric‐Coordinated Titanium Sites‐Implanted Graphene Single‐Atom Electrocatalysts

open access: yesCarbon Energy, EarlyView.
A Ti‐based single‐atom catalyst featuring isolated Ti atoms anchored on reduced graphene oxide (Ti‐rGO) has been successfully synthesized as a sulfur host material. This Ti‐rGO composite effectively integrates the robust adsorption capacity of Ti‐O5 coordination groups toward LiPSs with the rapid mass transport kinetics inherent to its porous ...
Shilin Chen   +3 more
wiley   +1 more source

Lithium–Sulfur Battery Cathode Design: Tailoring Metal‐Based Nanostructures for Robust Polysulfide Adsorption and Catalytic Conversion

Advances in Materials, 2021
Lithium–sulfur (Li‐S) batteries have a high specific energy capacity and density of 1675 mAh g−1 and 2670 Wh kg−1, respectively, rendering them among the most promising successors for lithium‐ion batteries.
Sue-Faye Ng, M. Lau, Wee‐Jun Ong
semanticscholar   +1 more source

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