Open AccessTemplate assisted nano-structured nickel for efficient methanol oxidation
Author(s) -
S. Mohanapriya,
Vishnu Raj
Publication year - 2021
Publication title -
characterization and application of nanomaterials
Language(s) - English
Resource type - Journals
ISSN - 2578-1995
DOI - 10.24294/can.v4i2.1294
Subject(s) - nanoporous , chronoamperometry , cyclic voltammetry , nickel , dielectric spectroscopy , materials science , catalysis , chemical engineering , ionic liquid , electrochemistry , inorganic chemistry , methanol , electrocatalyst , electrode , chemistry , nanotechnology , metallurgy , organic chemistry , engineering
Nanoporous nickel has been prepared by electrodeposition using non-ionic surfactant based liquid crystalline template under optimized processing conditions. Physicochemical properties of nanoporous nickel are systematically characterized through XRD, SEM and AFM analyses. Comparison of electrocatalytic activity of nanoporous nickel with smooth nickel was interrogated using cyclic voltammetry (CV), chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS) analyses. Distinctly enhanced electrocatalytic activity with improved surface poisoning resistance related to nanoporous nickel electrode towards methanol oxidation stems from unique nanoporous morphology. This nanoporous morphology with high surface to volume ratio is highly beneficial to promote active catalytic centers to offer readily accessible Pt catalytic sites for MOR, through facilitating mass and electron transports.