Investigating the electrochemical and antibacterial activities of nickel pyrophosphate [a-Ni2P2O7] nanostructures

• Published in: Advances in natural sciences. Nanoscience and nanotechnology Vol. 14; no. 4; pp. 45014 - 45020
• Main Authors: Mary, A Juliet Christina, Santhanalakshmi, M, Lavanya, L
• Format: Journal Article
• Language: English
• Published: Hanoi IOP Publishing 01.12.2023
• Subjects: Annealing; Antibacterial activity; Bacteria; Capacitance; Crystal structure; Electrochemical analysis; Electrochemistry; energy storage and conversion; Gram-negative bacteria; Gram-positive bacteria; kirby-bauer method; KOH electrolyte; Morphology; Nanoparticles; Nanostructure; Ni; Nickel
• ISSN: 2043-6262; 2043-6254; 2043-6262
• DOI: 10.1088/2043-6262/ad09c5

Abstract Nickel pyrophosphate nanostructures have been synthesized by a simple co-precipitation method. Annealing temperature affected the crystal structure formation of α -Ni 2 P 2 O 7 and altered the surface morphology. By increasing the annealing temperature from 350 °C to 900 °C, the morphology of the material varies from irregularly shaped agglomerated particles to dumbbell-shaped nanoparticles respectively. The electrochemical performance of α -Ni 2 P 2 O 7 nanoflakes (NP-2) and dumbbell-shaped (NP-3) nanoparticles is tested at 1 M KOH electrolyte solution, which provides the maximum specific capacitance of 146 and 121 F g −1 at a current density of 0.8 A g −1 respectively. Furthermore, the antibacterial activity of NP-2 nanoflakes is tested against different pathogenic Gram-positive and Gram-negative bacteria. The highest value of the inhibition zone exhibits the good antibiotic nature of the α -Ni 2 P 2 O 7 nanoflakes.