A water coordinated Ni complex and a 2D Ni-MOF: topology dependent highly enhanced electrocatalytic OER activity
Pandi Muthukumar, Gunasekaran Arunkumar, Mehboobali Pannipara, Abdullah G. Al‐Sehemi, Dohyun Moon, Savarimuthu Philip Anthony
Abstract
. The post-catalytic analysis suggested that the Ni-MOF and Ni-C are converted to nickel hydroxides/oxyhydroxides during electrocatalysis and acted as the catalytic centre. The low Tafel slope and charge transfer resistance further supported the higher activity of Ni-MOF based nickel hydroxides/oxyhydroxides. Chronoamperometric studies revealed the excellent stability of the Ni-MOF based catalyst over 72 h. The present study revealed the potential of developing highly active electrocatalysts based on Ni-MOFs by optimizing the topology and coordination environment.
Topics & Concepts
Water splittingNickelMaterials scienceTopology (electrical circuits)Chemical engineeringChemistryCatalysisMetallurgyOrganic chemistryPhotocatalysisMathematicsEngineeringCombinatoricsElectrocatalysts for Energy ConversionElectrochemical Analysis and ApplicationsAdvanced battery technologies research