Nitrogen substitution induced lattice contraction in nickel nanoparticles for electrochemical hydrogen evolution from simulated seawater.
Baghendra SinghAjit Kumar SinghAdyasa PriyadarsiniYu-Cheng HuangSanchaita DeyToufik AnsariShaohua ShenGoutam Kumar LahiriChung Li DongBhabani S MallikArindam IndraPublished in: Chemical communications (Cambridge, England) (2023)
Herein, we demonstrate a facile method for the introduction of nitrogen in the lattices of nickel nanoparticles to form NiN x ( 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 NiN 0.20 required 87 mV overpotential for -10 mA cm -2 cathodic current density in simulated seawater. The density functional theory calculations revealed favorable E H 2 O ads and Δ G H ads after N-introduction.
Keyphrases
- density functional theory
- metal organic framework
- molecular dynamics
- molecularly imprinted
- high resolution
- reduced graphene oxide
- smooth muscle
- gold nanoparticles
- magnetic resonance imaging
- single cell
- high glucose
- ionic liquid
- diabetic rats
- transition metal
- molecular dynamics simulations
- mass spectrometry
- computed tomography
- walled carbon nanotubes
- label free