Tailoring cobalt spinel oxide with site-specific single atom incorporation for high-performance electrocatalysis
Kangjae Lee, Jaehyuk Shim, Hyunsoo Ji, Jungho Kim, Hyeon Seok Lee, Heejong Shin, Megalamane S. Bootharaju, Kug‐Seung Lee, Wonjae Ko, Jae Wook Lee, Kang Kim, Seungwoo Yoo, Sungeun Heo, Jaeyune Ryu, Seoin Back, Byoung‐Hoon Lee, Yung‐Eun Sung, Taeghwan Hyeon
Abstract
Ta 5+ dopants tend to stabilize on the surface of Co 3 O 4 , significantly increasing the surface Co 2+ species. This dopant-rich shell and the high density of surface Co 2+ provide active and protective layers, resulting in high-performance in acidic OER.
Topics & Concepts
DopantElectrocatalystSpinelMaterials scienceCobaltCobalt oxideOxideDopingAtom (system on chip)Chemical engineeringInorganic chemistryNanotechnologyChemistryMetallurgyOptoelectronicsElectrodePhysical chemistryElectrochemistryComputer scienceEngineeringEmbedded systemElectrocatalysts for Energy ConversionAdvanced battery technologies researchElectrochemical Analysis and Applications