Results 131 to 140 of about 6,248,110 (306)

Synergistic Heteroatom Doping in Hard Carbon Anodes: Unlocking High Performance in Potassium-Ion Batteries

open access: yesBatteries
The increasing demand for energy storage systems that deliver both high performance and environmental sustainability has driven significant interest in potassium-ion batteries (PIBs) as viable substitutes for lithium-ion batteries (LIBs).
Narasimharao Kitchamsetti   +3 more
doaj   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

open access: yesAdvanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li   +7 more
wiley   +1 more source

Electrochemical Properties and Rate-Limiting Processes in Nd2NiO4+δ Cathode for Intermediate-Temperature Solid Oxide Fuel Cells

open access: yesInorganics
Nd2NiO4+δ was investigated as a Ruddlesden–Popper (RP) cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs), with particular emphasis on its electrochemical performance and oxygen reduction reaction mechanism.
Sinuhe U. Costilla-Aguilar   +6 more
doaj   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

Evaluation of Several Carbon-Supported Nanostructured Ni-Doped Manganese Oxide Materials for the Electrochemical Reduction of Oxygen

open access: yes, 2011
Physical and electrochemical properties of nanostructured Ni-doped manganese oxides (MnO(x)) catalysts supported on different carbon powder substrates were investigated so as to characterize any carbon substrate effect toward the oxygen reduction ...
GARCIA, Amanda C.   +9 more
core   +1 more source

Cyclic Voltammetry-Assisted Electrodeposition of TiO2/PANI Thin Films on Boron-Doped Diamond and Fluorine-Doped Tin Oxide: Effect of Composition on Interfacial and Electrochemical Properties

open access: yesSurfaces
This study presents the successful electrodeposition of polyaniline (PANI) and TiO2/PANI composites on boron-doped diamond (BDD) and fluorine-doped tin oxide (FTO) substrates via cyclic voltammetry.
Robert Josep Villanueva-Silva   +4 more
doaj   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

open access: yesAdvanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash   +6 more
wiley   +1 more source

Enhanced Electrochemical Performance of Lanthanum-Doped Li4Ti5O12 Nanoflakes Synthesized via Hydrothermal Route for Supercapacitor Applications

open access: yesMicro
In material research, heteroatom doping in a host lattice is regarded as an effective method to modify the structural and electronic properties of the materials, consequently enhancing their electrochemical performance.
Mudda Deepak   +4 more
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

open access: yesAdvanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li   +9 more
wiley   +1 more source

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