Results 91 to 100 of about 1,301,449 (290)

Contact angle regulation and performance optimization of composite bipolar plates

open access: yesCailiao gongcheng
Proton exchange membrane fuel cells (PEMFC) have the advantages of high energy conversion efficiency, low impact of load changes on power generation efficiency, and low harmful substances and carbon emissions.
ZHANG Luyao   +3 more
doaj   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

Scan-Rate-Dependent Ion Current Rectification in Bipolar Interfacial Nanopores

open access: yesMicromachines
This study presents a theoretical investigation into the voltammetric behavior of bipolar interfacial nanopores due to the effect of potential scan rate (1–1000 V/s). Finite element method (FEM) is utilized to explore the current–voltage (I–V) properties
Xiaoling Zhang   +4 more
doaj   +1 more source

Characterization of Ti3SiC2-coating on stainless steel bipolar plates in simulated proton exchange membrane fuel cell environments

open access: yesElectrochemistry Communications, 2019
Ti3SiC2-phase-coating is considered as a candidate for protective coating on bipolar plates in proton exchange membrane fuel cells with good corrosion resistance and electrical conductivity.
J.L. Lu   +4 more
doaj   +1 more source

Interlayer‐Sliding‐Enabled Multiferroicity and Giant Switchable Anomalous Hall Conductivity in RuO2Zn2F2 Bilayer

open access: yesAdvanced Science, EarlyView.
Interlayer sliding in the RuO2Zn2F2 bilayer induces ferroelectricity and enables reversible valley polarization switching. The electric dipole and valley‐resolved band edges are intimately coupled, revealing sliding ferroelectricity as a powerful mechanism for electrical control of valley degrees of freedom in 2D materials.
Djamel Bezzerga   +3 more
wiley   +1 more source

Dual‐Mode Nanoporous SiO2 Memristors with Coexisting Volatile and Nonvolatile Dynamics for Reservoir Computing

open access: yesAdvanced Science, EarlyView.
A nanoporous SiO2 memristor enabling reconfigurable volatile and non‐volatile switching within a single device is demonstrated. The dual‐mode functionality supports both physical reservoir dynamics and synaptic weight storage, allowing unified hardware implementation of reservoir computing for temporal information processing, including image and ...
Bohao Ding   +5 more
wiley   +1 more source

Behaviour of bipolar membranes at high current density: Water diffusion limitation [PDF]

open access: yes, 1998
In this paper the behaviour of bipolar membranes at very high current density is discussed. Current–voltage curves are determined, both for the Tokuyama Soda BP-1 and the WSI Technologies bipolar membrane.
Strathmann, H.   +7 more
core   +1 more source

Bipolar Palladium Membrane Enabling Crossover‐Free Selective Proton Transport

open access: yesAdvanced Science, EarlyView.
This study introduces a crossover‐free bipolar palladium membrane that transports protons selectively via reversible Pd/PdHx absorption–desorption and lattice hydrogen diffusion, overcoming the conductivity–selectivity trade‐off of polymer membranes. It enables water‐fed Li‐mediated ammonia synthesis, achieving 51% Faradaic efficiency and stable 12 h ...
Jiyeon Baek   +11 more
wiley   +1 more source

Efficacy of modern antipsychotics in placebo-controlled trials in bipolar depression: a meta-analysis – results to be interpreted with caution [PDF]

open access: yes, 2010
Randomized, controlled trials have demonstrated efficacy for second-generation antipsychotics in the treatment of acute mania in bipolar disorder. Despite depression being considered the hallmark of bipolar disorder, there are no published systematic ...
Goikolea, José Manuel   +7 more
core   +1 more source

Research progress in composite graphite bipolar plate materials and properties

open access: yesCailiao gongcheng
Bipolar plates play a role in electron transfer, gas distribution, water management, supporting membrane electrode assembly in the proton exchange membrane fuel cell (PEMFC) and is also a key component to ensure low cost of fuel cell stack. In this paper,
LI Tuanfeng   +8 more
doaj   +1 more source

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