Formation of porous NiCoV-LTH nanosheet arrays by <i>in situ</i> etching of nickel foam for the hydrogen evolution reaction at large current density
Qianqian Liu, Jianfeng Huang, Dan Yang, Yongqiang Feng, Guodong Li, Xiao Zhang, Yifei Zhang, Guoting Xu, Liangliang Feng
Abstract
We report the in situ generation of NiCoV-LTH on nickel foam for the HER. Interestingly, the introduction of Co into NiV-LDH can induce the formation of porous nanosheets to expose a large number of active sites and change the electron density around Ni and V to promote the absorption of hydrogen species and thus accelerate the HER kinetics.
Topics & Concepts
NanosheetNickelMaterials sciencePorosityEtching (microfabrication)HydrogenIn situCurrent densityCurrent (fluid)Chemical engineeringNanotechnologyComposite materialMetallurgyChemistryLayer (electronics)Organic chemistryThermodynamicsQuantum mechanicsEngineeringPhysicsElectrocatalysts for Energy ConversionAdvanced battery technologies researchSupercapacitor Materials and Fabrication