Design of Co1Al3(OH)m/carbon nitride hybrid nanostructures for enhanced capacitive energy storage in an alkaline electrolyte

Panda, Prajnashree; Mishra, Ranjit; Panigrahy, Sonali; Barman, Sudip

doi:10.1039/d1ma00665g

Cited by 7 publications

(4 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The p-XRD pattern, SEM, high- and low-resolution TEM of this product are provided in Figure S4. The p-XRD peaks corresponding to planes (003), (006), (012), (015), (018), (110), (113), and (116) of CoAl-LDH/C (Figure S4a) suggest the formation of LDH phases due to the hydrothermal treatment in the first step of synthesis of CoAl 2 O 4 /C composite. ,, As presented in Figure S4b, the SEM image of the first step product shows 3D flowerlike morphology of CoAl-LDH/C composite. Figure S4c,d represents the high- and low-resolution TEM images of the CoAl-LDH/C composite.…”

Section: Resultsmentioning

confidence: 94%

See 1 more Smart Citation

3D Assembly of CoAl₂O₄ Spinel Nanosheets for Energy Storage

Panda

Mishra

Panigrahy

et al. 2022

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

Two-dimensional (2D) materials have attracted attention for electrochemical energy storage applications because of their unique physical and chemical properties. However, the facile synthesis of thin 2D sheets remains a challenge. Herein, we demonstrate the formation of 3D assembly of thin Co–Al spinel sheets and carbon composite through a facile two steps process: hydrothermal synthesis of CoAl Layered double hydroxide (LDH) followed by heating of this LDH at high temperature to form CoAl2O4/C. This composite with a high specific surface area (SSA) of 102.7 m2 g–1 showed enhanced energy storage application. The CoAl2O4/C is capable of delivering specific capacitance of 1394 F g–1 under 1 A g–1 current density with 87% capacitance retention after 5000 cycles. For asymmetric supercapacitor (ASC), the CoAl2O4/C and activated carbon (AC) were used as cathode and anode, respectively. The device CoAl2O4/C//AC exhibits a high energy density of 76.34 W h kg–1 at a power density of 750.045 W kg–1 with good cyclic durability of 79% after 10 000 cycles. The improved electrochemical activity may be due to the 3D assembly of thin 2D Co–Al spinel nanosheets that allows easy electron and mass transport, high surface area, synergistic interaction among different components, etc. for which Co–Al spinel/C composite will find application in energy storage.

show abstract

Section: Resultsmentioning

confidence: 94%

“…The Co and Al precursor ratio was 1:2 for the synthesis of CoAl 2 O 4 /C. The CoAl-LDH/C was prepared by using our previous report . Thirty-five milligrams of N@C were dispersed in 20 mL of DI H 2 O containing 77.6 mg of Co(NO 3 ) 2 ·6H 2 O and 200 mg Al(NO 3 ) 3 ·9H 2 O to obtain total molarity of 40 mM.…”

Section: Experimental Sectionmentioning

confidence: 99%

3D Assembly of CoAl₂O₄ Spinel Nanosheets for Energy Storage

Panda

Mishra

Panigrahy

et al. 2022

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…4,5 Between all the energy storage systems, like conventional capacitors and batteries, supercapacitors fill the gap. 6 Due to their good sustainability and environmental friendliness, supercapacitors have emerged as attractive contenders in the field of electrochemical energy storage. 7 Supercapacitors, having several advantages, like high power density (PD), short discharge/charge times, and exceptional cycling capability, are considered efficient renewable energy storage devices compared to other conventional energy storage devices.…”

Section: ■ Introductionmentioning

confidence: 99%

“…An important obstacle to the effective consumption of various renewable energy sources is the intermittent nature of the energy supply . Thus, it is crucial to create energy storage systems that are effective. , Between all the energy storage systems, like conventional capacitors and batteries, supercapacitors fill the gap . Due to their good sustainability and environmental friendliness, supercapacitors have emerged as attractive contenders in the field of electrochemical energy storage .…”

Section: Introductionmentioning

confidence: 99%

One-Dimensional Ni-MIL-77 Metal–Organic Framework as an Efficient Electrode Nanomaterial for Asymmetric Supercapacitors

Panigrahy

Panda

Shekhawat

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

The design and synthesis of one-dimensional (1D) metal–organic frameworks (MOFs) with a high surface area are crucial for their potential usage in supercapacitor applications. 1D-Ni-MIL-77 MOF, synthesized by a one-step solvothermal method, is used here to investigate its activity in supercapacitor applications. High surface-to-volume ratios and short ion diffusion path lengths in 1D-structured nanomaterials result in high charge/discharge rates. 1D-Ni-MIL-77 MOF nanobelts show a high surface area of 93.48 m2 g–1 that gives ample active electrochemical sites. 1D-Ni-MIL-77 shows a specific capacitance (C) value of 1376 F g–1 under the current of 1 A g–1. Additionally, an asymmetric supercapacitor (ASC) was assembled by employing activated carbon as the negative electrode and a 1D-Ni-MIL-77 nanobelt as the positive electrode. With the assembled ASC, at a power density of 750 W kg–1, an energy density of 25 W h kg–1 was attained with a voltage ranging from 0 to 1.5 V. The cyclic durability of the ASC was examined, and it exhibited excellent retention of 95% of its initial capacitance after 5000 cycles.

show abstract

Synthesis of CoAl-LDH@Ni(OH)2 high-performance supercapacitor electrode composites by hydrothermal-assisted electrodeposition

Zhang

Xue

Yan³

et al. 2022

Ionics

View full text Add to dashboard Cite

Design of Co₁Al₃(OH)_m/carbon nitride hybrid nanostructures for enhanced capacitive energy storage in an alkaline electrolyte

Abstract: Over past few years, layered double hydroxide (LDH) nanostructures attracted the attention of scientific community owing to their facile synthesis, interesting structure, morphology and has been promising in the fields...

Cited by 7 publications

References 49 publications

3D Assembly of CoAl₂O₄ Spinel Nanosheets for Energy Storage

3D Assembly of CoAl₂O₄ Spinel Nanosheets for Energy Storage

One-Dimensional Ni-MIL-77 Metal–Organic Framework as an Efficient Electrode Nanomaterial for Asymmetric Supercapacitors

Synthesis of CoAl-LDH@Ni(OH)2 high-performance supercapacitor electrode composites by hydrothermal-assisted electrodeposition

Contact Info

Product

Resources

About

Design of Co1Al3(OH)m/carbon nitride hybrid nanostructures for enhanced capacitive energy storage in an alkaline electrolyte

Abstract: Over past few years, layered double hydroxide (LDH) nanostructures attracted the attention of scientific community owing to their facile synthesis, interesting structure, morphology and has been promising in the fields...

Cited by 7 publications

References 49 publications

3D Assembly of CoAl2O4 Spinel Nanosheets for Energy Storage

3D Assembly of CoAl2O4 Spinel Nanosheets for Energy Storage

One-Dimensional Ni-MIL-77 Metal–Organic Framework as an Efficient Electrode Nanomaterial for Asymmetric Supercapacitors

Synthesis of CoAl-LDH@Ni(OH)2 high-performance supercapacitor electrode composites by hydrothermal-assisted electrodeposition

Contact Info

Product

Resources

About

Design of Co₁Al₃(OH)_m/carbon nitride hybrid nanostructures for enhanced capacitive energy storage in an alkaline electrolyte

3D Assembly of CoAl₂O₄ Spinel Nanosheets for Energy Storage

3D Assembly of CoAl₂O₄ Spinel Nanosheets for Energy Storage