Carbon nanomaterials for high-performance supercapacitors
Recently, carbon nanomaterials (especially, carbon nanotubes and graphene) have been widely investigated as effective electrodes in supercapacitors due …
Recent Advances of Two‐Dimensional Nanomaterials …
Herein, a comprehensive review of recent progress towards the application of 2D nanomaterials for electrochemical capacitors is provided. Several typical types of 2D nanomaterials are …
Recent advances in carbon-based nanomaterials for multivalent-ion hybrid capacitors…
Hybrid capacitors are emerging because of their ability to store large amounts of energy, cycle through charges quickly, and maintain stability even in harsh environments or at extreme temperatures. Hybrid capacitors with monovalent cations such as Li+, Na+, and K+ have been extensively studied. However, the
Nanomaterials | Free Full-Text | Ordered Mesoporous Carbon with Chitosan for Disinfection of Water via Capacitive …
Capacitive deionization (CDI) with water disinfection materials is a potential method to produce fresh water from aqueous solutions. Therefore, an ordered mesoporous carbon with chitosan (OMC-CS) was coated on the active carbon (AC) electrode as a capacitive deionization disinfection (CDI) electrode. Comparing with OMC-CS-4,6,8 as …
High-energy-density capacitors with 2D nanomaterials could ...
High-energy-density capacitors with 2D nanomaterials could significantly enhance energy storage April 24 2024, by Rashda Khan In the quest for more efficient and sustainable energy solutions, a multi-university research team has reached a significant milestone in capacitor technology. Researchers from the University of Houston, Jackson State
A Brief Review on Heteroatom-Doped Dual-Carbon Metal-Ion …
Numerous carbon nanomaterials, due to their affordability, safety, and tunability, are being widely investigated for energy storage applications. Dual carbon energy storage devices, from supercapacitors to batteries, are promising devices trending in recent years. This review focuses on the role of carbon nanomaterials in heteroatom-doped …
In addition, Svetukhin et al. prepared PANI/VA-MWCNT pseudo-capacitors and studied the device''s temperature-dependent charging–discharging dynamics []. Wang''s group summarized the research progress of cobalt-based nanomaterials as electrode materials for supercapacitors and focused on the strategies to improve the …
Nanomaterials | Free Full-Text | Carbon-Based Quantum Dots for …
Carbon-based Quantum dots (C-QDs) are carbon-based materials that experience the quantum confinement effect, which results in superior optoelectronic properties. In recent years, C-QDs have attracted attention significantly and have shown great application potential as a high-performance supercapacitor device. C-QDs (either as a bare electrode …
Nanomaterials | Free Full-Text | Electrospinning Synthesis of
Dielectric composites based on ferroelectric ceramics nanofibers are attracting increasing attention in capacitor application. In this work, the sol–gel method and electrospinning technology are utilized to prepare one-dimensional Na0.5Bi0.5TiO3 (NBT) nanofibers, and the influence of electrospinning process parameters such as spinning …
Nanomaterials | Free Full-Text | I-V and C-V Characterization of a …
We study the effect of temperature and light on the I-V and C-V characteristics of a graphene/silicon Schottky diode. The device exhibits a reverse-bias photocurrent exceeding the forward current and achieves a photoresponsivity as high as 2.5 A / W . We show that the enhanced photocurrent is due to photo-generated carriers injected in the graphene/Si …
Nanomaterials | Free Full-Text | Design of Polymer Nanodielectrics for Capacitive …
Polymer nanodielectrics present a particularly challenging materials design problem for capacitive energy storage applications like polymer film capacitors. High permittivity and breakdown strength are needed to achieve high energy density and loss must be low. Strategies that increase permittivity tend to decrease the breakdown …
Materials for electrochemical capacitors
Electrochemical capacitors, also called supercapacitors, store energy using either ion adsorption (electrochemical double layer capacitors) or fast surface redox reactions (pseudo-capacitors).
High-energy-density capacitors with 2D nanomaterials could ...
In the quest for more efficient and sustainable energy solutions, a multi-university research team has reached a significant milestone in capacitor technology. Researchers from the University of Houston, Jackson State University and Howard University have developed a new type of flexible high-energy-density capacitor, which is …
Carbon nanomaterials and their composites for …
The symmetrical capacitor can provide the highest specific energy of 2.98 Wh/kg at a low current rate of 3 A/g, while the hybrid capacitor can provide up to 2.64 W/kg specific energy and 6805 W/kg …
Carbon nanomaterials for high-performance supercapacitors
The principle of energy storage in a supercapacitor can be either (i) electrostatic charge accumulation at the electrode/electrolyte interface (electrical double layer capacitance, EDLC), as schematically shown in Fig. 1, or (ii) charge transfer, via reversible (Faradaic) redox reaction(s), to redox materials (e.g. conductive polymers, …
Nanomaterials | Free Full-Text | Capacitive NO2 Detection Using …
A graphene-based capacitive NO2 sensing device was developed by utilizing the quantum capacitance effect. We have used a graphene field-effect transistor (G-FET) device whose geometrical capacitance is enhanced by incorporating an aluminum back-gate electrode with a naturally oxidized aluminum surface as an insulating layer. …
A Light-Driven Integrated Bio-Capacitor with Single Nano …
Nanomaterials (Basel). 2022 Feb 9;12(4):592. doi: 10.3390/nano12040592. ... Inspired by the capacitive properties of natural protoplast cell membranes, a new bio-capacitor based on bR and artificial nanochannels was constructed. As a point of innovation, microfluidic chips were integrated into our device as an ion transport channel, which made ...
Recent Advances in Two-Dimensional Nanomaterials …
The advent of two-dimensional (2D) nanomaterials has spurred enormous research interest as supercapacitor electrode …
Nanomaterials | Free Full-Text | Nanostructured …
The advent of novel organic and inorganic nanomaterials in recent years, particularly nanostructured carbons, conducting polymers, and metal oxides, has enabled the fabrication of various energy devices …
Carbon Nanomaterials-Enabled High-Performance …
The article reviews the recent advances of supercapacitors (SCs) made from various carbon nanomaterials, including activated carbons, carbon nanotubes, graphene, and …
Nanomaterials for supercapacitors as energy storage application: …
There is future scope of improvement in electrode development by fabrication of nanocomposites from pseudo-capacitive materials with carbon-based nanomaterials. Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to …
Galvanic Replacement Synthesis of Graphene Coupled Amorphous Antimony Nanoparticles for High-Performance Sodium-Ion Capacitor …
Galvanic Replacement Synthesis of Graphene Coupled Amorphous Antimony Nanoparticles for High-Performance Sodium-Ion Capacitor[J]. Acta Phys. -Chim. Sin. 2024, 40(5), 2306011. doi: 10.3866/PKU.WHXB202306011
Nanostructured Ni compounds as electrode materials towards high-performance electrochemical capacitors …
Integration of Ni compound-based nanomaterials into energy storage devices, especially electrochemical capacitors, offers opportunities to timely meet the ever increasing demands of fast charging/discharging processes, longer cycle life, and higher power density and energy density. Besides that, Ni compound-
Nanomaterials | Free Full-Text | Converting Corncob to Activated Porous Carbon for Supercapacitor Application
Carbon materials derived from biomass are promising electrode materials for supercapacitor application due to their specific porosity, low cost and electrochemical stability. Herein, a hierarchical porous carbon derived from corncob was developed for use as electrodes. Benefitting from its hierarchical porosity, inherited from the natural …
NiMoO4 is an excellent candidate for supercapacitor electrodes, but poor cycle life, low electrical conductivity, and small practical capacitance limit its further development. Therefore, in this paper, we fabricate NiMoO4@MnCo2O4 composites based on a two-step hydrothermal method. As a supercapacitor electrode, the sample can reach …
Nanomaterials: a review of synthesis methods, properties, recent …
Nanomaterials have emerged as an amazing class of materials that consists of a broad spectrum of examples with at least one dimension in the range of 1 to 100 nm. Exceptionally high surface areas can be achieved through the rational design of nanomaterials. Nanomaterials can be produced with outstanding magn
