Engineering Graphene Oxide-Incorporated Iron Vanadate Nanocomposites as Electrode Material for High-Performance Redox Flow Battery and Supercapacitor Performances DOI

Sharath Kumar Basavaraju,

Gireeshkumar Basavaraj Chavati,

Malashri Boraiah Sannaobaiah

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

Increasing energy demands in recent days have emphasized the need for development of reliable and efficient storage/conversion materials. Thereby, iron vanadate (FeVO4) was synthesized using a facile hydrothermal method, which is known to exhibit superior redox activity but its poor conductivity low charge transfer process affect overall performance. Incorporation graphene oxide into FeVO4 enhances conductivity, stability, composite due synergetic effect. multifunctional advanced electrocatalyst can be obtained. Spectroscopic techniques including X-ray diffraction, FE-SEM, EDAX-elemental mapping, Raman, photoelectron spectroscopy, HR-TEM analysis were done validate successful production high-purity products. The materials subjected various electrochemical studies activity. material used as an electrode with area 132 cm2 flow batteries. constructed vanadium battery cell exhibited Coulombic efficacy 93% Voltaic 88% at current rating 70–17.5 mA/cm2 first time stable 1000 cycles. Similar conducted battery, resulting 89% efficiency along discharge capacity 2456 mA h. Supercapacitor by depositing slurry on carbon sheet. 1374 F/g 12.5 A/g charge–discharge 1194 from EIS analysis, establishing appreciable capacitance 197 very high 100 exhibiting wider range. These highlight behavior multiple domains storage devices.

Language: Английский

Synergetic Interplay of MnNi-MOF Composite with 2D MXene for Improved Supercapacitor Application DOI

S. Shalini,

Yen‐Pei Fu, A. Chandra Bose

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 156751 - 156751

Published: Oct. 28, 2024

Language: Английский

Citations

5
Controllable Preparation of Hollow Spheroidal Nickel-Based Metal–Organic Frameworks Microparticles for Aqueous Nickel–Zinc Batteries DOI
Feng Zhang, Jinjin Ma, Zhimin Wu

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Metal-organic frameworks (MOFs) have garnered increasing interest due to their porous structure, high surface area, and rich redox active metal ions that can be exploited as good electrode materials for electrochemical energy storage. Herein, nickel-based MOFs with different morphological structures of solid spheres (Ni-BTC-0), hollow spheroidal microparticles (Ni-BTC-5), (Ni-BTC-10) been facilely synthesized by using water a regulator. Among them, the unique structure Ni-BTC-5 largest area provide abundant channels fast electron electrolyte transport well expose more sites. As result, displays higher specific capacity 177.8 mA h/g than Ni-BTC-0 (110.6 h/g) Ni-BTC-10 (129.9 electrodes at current density 1.0 A/g. Furthermore, assembled aqueous nickel-zinc battery based on cathode Zn anode delivers 210.6 h/g, remarkable 362.3 W h/kg, retention rate 80.2% over 3000 cycles. This study provides new way regulate MOFs, also demonstrating regulating is one effective approaches improve storage performances.

Language: Английский

Citations

0
NiCo layered double hydroxide with multi-dimensional nanostructures optimized by Mo-doping and electrochemical reconstruction strategies for asymmetric supercapacitors DOI

Xingyue Wu,

Yiping Qiu, Junyao Li

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 109, P. 115212 - 115212

Published: Dec. 31, 2024

Language: Английский

Citations

1
Ginkgo biloba-derived biogenic carbon quantum dots modified NiCo-LDH: significantly enhanced energy density and cycle stability DOI

Yongzhi Lan,

Rui Yu, Qing Wang

et al.

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 329, P. 130135 - 130135

Published: Nov. 8, 2024

Language: Английский

Citations

0
Engineering Graphene Oxide-Incorporated Iron Vanadate Nanocomposites as Electrode Material for High-Performance Redox Flow Battery and Supercapacitor Performances DOI

Sharath Kumar Basavaraju,

Gireeshkumar Basavaraj Chavati,

Malashri Boraiah Sannaobaiah

et al.

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

Increasing energy demands in recent days have emphasized the need for development of reliable and efficient storage/conversion materials. Thereby, iron vanadate (FeVO4) was synthesized using a facile hydrothermal method, which is known to exhibit superior redox activity but its poor conductivity low charge transfer process affect overall performance. Incorporation graphene oxide into FeVO4 enhances conductivity, stability, composite due synergetic effect. multifunctional advanced electrocatalyst can be obtained. Spectroscopic techniques including X-ray diffraction, FE-SEM, EDAX-elemental mapping, Raman, photoelectron spectroscopy, HR-TEM analysis were done validate successful production high-purity products. The materials subjected various electrochemical studies activity. material used as an electrode with area 132 cm2 flow batteries. constructed vanadium battery cell exhibited Coulombic efficacy 93% Voltaic 88% at current rating 70–17.5 mA/cm2 first time stable 1000 cycles. Similar conducted battery, resulting 89% efficiency along discharge capacity 2456 mA h. Supercapacitor by depositing slurry on carbon sheet. 1374 F/g 12.5 A/g charge–discharge 1194 from EIS analysis, establishing appreciable capacitance 197 very high 100 exhibiting wider range. These highlight behavior multiple domains storage devices.

Language: Английский

Citations

0