Results 61 to 70 of about 5,095 (238)

Weak‐Solvent‐Coordination Inducing MnNCN Preferential Orientation Toward High‐Capacity and Fast‐Charge Lithium‐Ion Storage

open access: yesCarbon Energy, EarlyView.
Preferentially oriented MnNCN nanosheets with high active (003) facets were synthesized by an aqueous weak solvent‐coordination strategy, and highly integrated MnNCN/CNT composite was in‐situ constructed as a high‐capacity fast‐charging anode. NCM811//MnNCN/CNT pouch cell exhibits a high energy density of 325 Wh kg−1 with a long cycle‐life over 200 ...
Penghui Guo   +11 more
wiley   +1 more source

Experimental methods in chemical engineering: Cyclic voltammetry—CV

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Cyclic voltammetry (CV) is a foundational electroanalytical technique for investigating redox behaviour and evaluating material performance across fields such as molecular electrochemistry, electrocatalysis, sensing, and energy storage. Despite its widespread use, a gap remains between formal electrochemical theory and the practical data ...
Yasser Matos‐Peralta   +4 more
wiley   +1 more source

Pseudocapacitive Charge Storage at Nanoscale Silicon Electrodes

open access: yesECS Transactions, 2015
Pseudocapacitive behaviour can be accessed when Si nanowire (NW) electrodes are scanned at relatively fast potential scan rates in Li-ion battery electrolytes. Measurements using cyclic voltammetry supported by electron microscopy confirm that Si NWs formed on silicon substrates, as opposed to metallic current collectors, do not solely undergo alloying
McSweeney, William   +4 more
openaire   +2 more sources

Pseudocapacitive Storage in High-Performance Flexible Batteries and Supercapacitors

open access: yesBatteries
Attention to electrochemical energy storage (EES) devices continues to grow as the demand increases for energy storage systems in the storage and transmission of renewable energy.
Zhenxiao Lu, Xiaochuan Ren
doaj   +1 more source

Electrochemical supercapacitors: Operation, components and materials [PDF]

open access: yesHemijska Industrija, 2018
Supercapacitors are the best choice when there is a need to deliver high power to the consumer or to store energy. Hybrid supercapacitors with their beneficial characteristics can somewhat overcome the basic lack of batteries, that is the low power ...
Dekanski Aleksandar, Panić Vladimir
doaj   +1 more source

New‐Generation Integrated Devices: Multiple‐Energy Utilization and Integration Systems Based on Perovskite Photovoltaics

open access: yesEcoEnergy, EarlyView.
This review highlights emerging integrated energy systems based on perovskite photovoltaics, including PSC–thermoelectric, photovoltaic–electrochemical, self‐charging, and building‐integrated architectures. By coupling multiple energy conversion and storage pathways, these multifunctional platforms enable enhanced solar utilization, improved stability,
Yihuai Huang   +10 more
wiley   +1 more source

Porous Single‐Crystal Nitrides for Enhanced Pseudocapacitance and Stability in Energy Storage Applications

open access: yesAdvanced Science
Supercapacitors have emerged as a prominent area of research in energy storage technology, primarily because of their high power density and notable stability compared to batteries.
Xiangqi Gao   +5 more
doaj   +1 more source

New Limits for Stability of Supercapacitor Electrode Material Based on Graphene Derivative

open access: yesNanomaterials, 2020
Supercapacitors offer a promising alternative to batteries, especially due to their excellent power density and fast charging rate capability. However, the cycling stability and material synthesis reproducibility need to be significantly improved to ...
Veronika Šedajová   +4 more
doaj   +1 more source

Harnessing Natural Wood Architecture: A Self‐Supporting, Hierarchically Porous NiFe@Carbon Capacitive Anode Enhances Electricity Generation and Storage in Microbial Fuel Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study reports a mild “Zn(NO3)2 interlayer‐expansion” strategy combined with electrodeposition to produce a self‐supporting capacitive anode (NiFe@PC) that preserves the wood's native low‐tortuosity channels. The retained native architecture expands niches for microbial colonization.
Xue Liu   +10 more
wiley   +1 more source

Tuning Pseudocapacitance via C–S Bonding in WS2 Nanorods Anchored on N,S Codoped Graphene for High-Power Lithium Batteries

open access: yes, 2018
Pseudocapacitance plays an important role in high-power lithium-ion batteries (LIBs). However, it is still lack of effective methods to tailor the pseudocapacitance contribution in electrode materials for LIBs.
Lin Zhu (192179)   +6 more
core   +1 more source

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