Enhancing Supercapacitor Performance of NiCoMn‐Layered Double Hydroxide with Ag–Citrate/Polyaniline Nanocomposites DOI Open Access

Ammar Makda,

Mohsin Ali Marwat, M Mahmood

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 17, 2024

Layered double hydroxide (LDH) has a layered structure, which makes it strong candidate for supercapacitors (SC) due to its high surface area. However, they suffer from low conductivity insufficient charge transfer across their layers. This research aims overcome this obstacle by introducing conductive channels among the layers addition of Ag–citrate and polyaniline (PANI). Consequently, five electrodes (S 1–5 ) were made NiCoMn LDH (referred as henceforth) 2:1 PANI composite (Ag/PANI) in different ratios into electrodes. Electrochemical analysis revealed successful improvement performance fraction Ag/PANI increased until equaled where highest specific capacitance 617 F g −1 was obtained, is 12% greater than value solely electrode (550 ). A device fabricated with best 3 activated carbon electrode, demonstrated energy densities power 41 WhKg 412.5 W Kg 14 8250 at 0.5 10 current densities, respectively. It also exhibited capacitive retention about 75% 3000 galvanostatic charge–discharge cycles. These results encourage use LDH, 1:1 ratio SCs remarkable performance.

Language: Английский

A review of advanced electrolytes for supercapacitors DOI
Jianyi Lu, Jiqing Zhang, Xiaosong Wang

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 103, P. 114338 - 114338

Published: Nov. 1, 2024

Language: Английский

Citations

11
Free-Standing Leaf-Like CoNiSe2/NC@Ni3(PO4)2 Core–Shell Nanoarray Heterostructures for Flexible Asymmetric Supercapacitors DOI

Ying Geng,

Siyu Bi,

Junyi Zhang

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

The rational design of a porous core–shell heterostructure with open spaces is an effective strategy to mitigate the aggregation and volume expansion active nanoelectrodes during charging/discharging processes. Herein, leaf-like CoNiSe2/NC@Ni3(PO4)2 hierarchical pores in situ grown on activated carbon cloth (CC) as free-standing electrode for flexible supercapacitors. collectively formed by both interspaces among adjacent structures channels vertically crossed Ni3(PO4)2 nanosheets not only significantly enhance electrolyte contact areas promote rapid penetration ion diffusion but also effectively buffer agglomeration nanoelectrode. Such unique spatial arrangement structure endow CoNiSe2/NC@Ni3(PO4)2/CC high specific capacitance 2505 F g–1 (1 A g–1) extended cycle life 91.1% capacity retention after 10,000 cycles, surpassing most reported electrodes similar compositions. combined experimental band analysis signifies that integrated CoNiSe2/Ni3(PO4)2 interfaces featuring optimized electronic accelerate charge transport improve redox-reaction kinetics, resulting significant enhancement electrochemical performance compared two individual components.

Language: Английский

Citations

1
Recent advancements in zero, one, two, and three-dimensional transition metal nitride-based supercapacitor electrodes DOI
Rajesh Kumar, Bhanu Ranjan, Davinder Kaur

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 121, P. 116580 - 116580

Published: April 11, 2025

Language: Английский

Citations

1
Interface engineering boosting the capacitive performance by constructing amorphous/crystalline NiCo-LDH@CoP@NiCo–P heterostructure DOI Creative Commons
Panpan Li, Xiaoliang Wang, Shaobin Yang

et al.

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 41, P. 102274 - 102274

Published: Sept. 6, 2024

Language: Английский

Citations

6
Construction of S/Cl-NiCo LDH@NiCo2O4 Heterojunction for Enhanced Charge Storage and Decoupled Water Electrolysis DOI
Kang Sun, Lei Zhang, Shijing Zhang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 178419 - 178419

Published: Dec. 1, 2024

Language: Английский

Citations

6
Hydrangea-like NiMn layered double hydroxide grown on biomass-derived porous carbon as a high-performance supercapacitor electrode DOI
Yilan Wang, Yanling Jin,

Wenhui Tian

et al.

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 222, P. 120035 - 120035

Published: Nov. 10, 2024

Language: Английский

Citations

4
In-Situ Synthesis and Synergistic Anticorrosion Performance of the Sr5(PO4)3OH/Zn/Al-LDH Composite with an Intercalated Spherical Structure DOI
Min Miao,

Zhou-Tao Feng,

Xinyu Zhao

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Language: Английский

Citations

0
Electrodeposited Iron‐Incorporated Cobalt Phosphide for Improved Supercapacitor Applications DOI Creative Commons
Gaurav Pandey, Prashanth W. Menezes, Kamlendra Awasthi

et al.

Advanced Energy and Sustainability Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Supercapacitors have gained significant attention for energy storage due to their high power density and long cycle life. In this context, transition metal phosphides are particularly promising electrode materials supercapacitors, owing theoretical capacitance rich redox chemistry. However, they require harsh synthesis conditions prolonged processing time. Herein, a simple, one‐step electrodeposition method is presented the of Fe‐incorporated CoP on Ni foam (NF), offering rapid scalable approach. By optimizing precursor molar ratio Fe:Co, material, Fe–CoP (10:20)/NF achieves specific 920.3 F g −1 at 1 A with high‐rate performance 298.9 50 retains 78.4% its after 10 000 cycles 30 . An asymmetric supercapacitor fabricated using as positive activated carbon negative delivers an 16.37 Wh kg 799.98 W , 73.8% retention 2000 5 The enhanced electrochemical attributed Fe incorporation, demonstrating efficient strategy advanced development.

Language: Английский

Citations

0
3D reticulated NiMo-LDH nanoflower-encapsulated VO2 into rodlike arrays for asymmetric supercapacitors and overall water splitting DOI
Cheng Chen,

Sunying Yang,

Yuqin Xu

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 45, P. 102637 - 102637

Published: March 13, 2025

Language: Английский

Citations

0
Growth of Succulent Shaped Fluorine Incorporated Ni─Co LDH (F‐NiCo(OH)2): Elevating Supercapacitor Efficiency DOI Open Access
S. Charis Caroline,

Abhijit Ravindran,

Kaushik Ghosh

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract The unparalleled morphological tuning of layered double hydroxides (LDHs), specifically NiCo(OH) 2 , through fluorine doping, is systematically investigated. unique achieved by precisely modulating the dopant concentration using a straightforward solvothermal approach. Field Emission Scanning Electron Microscopy (FESEM) results show distinct succulent‐like morphologies in samples, influencing surface area and electrochemical performance. Electrochemical studies fabricated asymmetric supercapacitor consisting 2F‐NiCo(OH) |Activated Carbon(AC) electrodes exhibit very high charge storage capacity as 402 C g −1 . Further, X‐ray photoelectron spectroscopy analysis confirms incorporation chemisorption within LDH layers, thereby corroborating its presence electronic environment enhancing device shows an exceptionally energy density, 67 Wh kg with power density 10.6 kW while retaining 95% specific after 13 000 cycles at 10 mA cm −2 current density. practical applicability developed demonstrated successfully powering LED calculator, underscoring potential for real‐world solutions.

Language: Английский

Citations

0