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Updated: Jul 31, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Nitrogen substitution induced lattice contraction in nickel nanoparticles for electrochemical hydrogen evolution from
Baghendra Singh1, Ajit Kumar Singh1, Adyasa Priyadarsini2
1Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, UP-221005, India. arindam.chy@iitbhu.ac.in.
Abstract:
Herein, we demonstrate a facile method for the introduction of nitrogen in the lattices of nickel nanoparticles to form NiN (x = 0.13, 0.20, 0.27). X-ray absorption spectroscopy reveals the contraction of the Ni-Ni bond and modulated coordination environment after nitrogen introduction. The NiN0.20 required 87 mV overpotential for -10 mA cm-2 cathodic current density in simulated seawater. The density functional theory calculations revealed favorable EH and ΔGH after N-introduction.

