Tuning surface redox chemistry through trace Ni doping in Cobalt Pyrophosphate(Co2P2O7) for high-performance supercapacitors: Experimental and theoretical insights

Kismat Kumar Sahoo; Abhisek Padhy; Ashutosh Sahoo; J. N. Behera

doi:10.1039/d5ta09303a

January 1, 2026Journal of Materials Chemistry A

Tuning surface redox chemistry through trace Ni doping in Cobalt Pyrophosphate(Co2P2O7) for high-performance supercapacitors: Experimental and theoretical insights

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Key Points

This research aims to explore the effects of trace nickel doping on the electrochemical performance of cobalt pyrophosphate used in supercapacitors.
Synthesis of cobalt pyrophosphate (Co₂P₂O₇) and its nickel-doped variants
Electrochemical performance testing of the electrodes
Theoretical modeling to understand the redox chemistry changes
The Ni-doped Co₂P₂O₇ exhibits significantly enhanced electrochemical performance
Optimal nickel doping at a stoichiometric ratio of 0.1 shows the best results
Improvements in energy storage capacity and efficiency were observed compared to undoped Co₂P₂O₇

Implication

Experimental and theoretical insights demonstrate improved electrochemical performance in nickel-doped cobalt pyrophosphate supercapacitor electrodes, highlighting significant potential for energy...

Abstract

The electrochemical performance of cobalt pyrophosphate (Co2P2O7) as a supercapacitor electrode can be markedly improved by trace nickel doping. The optimized Ni-doped Co₂P₂O₇ (Ni:Co = 0.1 stoichiometric ratio) electrode exhibits...

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Cite This Study

Sahoo et al. (2026) studied this question.

synapsesocial.com/papers/6971be8d642b1836717e3279 https://doi.org/10.1039/d5ta09303a

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Tuning surface redox chemistry through trace Ni doping in Cobalt Pyrophosphate(Co2P2O7) for high-performance supercapacitors: Experimental and theoretical insights

Key Points

Implication

Abstract

Discussion

Cite This Study

Tuning surface redox chemistry through trace Ni doping in Cobalt Pyrophosphate(Co2P2O7) for high-performance supercapacitors: Experimental and theoretical insights

Key Points

Implication

Abstract

Discussion

Cite This Study

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