Efficient Bifunctional Fe/C/N Electrocatalysts for Oxygen Reduction and Evolution Reaction
Citations Over TimeTop 10% of 2015 papers
Abstract
Efficient electrocatalysts for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are critical components of various energy conversion devices such as regenerative fuel cells and metal–air batteries. Herein, we report bifunctional transition-metal-doped carbon/nitrogen (M/C/N) materials that simultaneously electrocatalyze the ORR and OER. The OER potential of the Fe/C/N catalyst at a current density of 10 mA cm–2 was 1.59 VRHE, and its ORR half-wave potential was 0.83 VRHE. Significantly, the Fe/C/N catalyst provided a potential gap of 0.76 V between the OER potential (at 10 mA cm–2) and the ORR half-wave potential; this is the highest activity reported to date for a non-precious-metal catalyst. Two types of active center, the transition metal and a nitrogen atom, are likely responsible for the oxygen bifunctional activity.
Related Papers
- → Metal–organic framework derived hollow CoS2 nanotube arrays: an efficient bifunctional electrocatalyst for overall water splitting(2017)283 cited
- → A clicking confinement strategy to fabricate transition metal single-atom sites for bifunctional oxygen electrocatalysis(2022)244 cited
- → Concurrently Engineered Lewis Acid Sites and Coordination Sphere Vacancies in CoFe Prussian Blue Analogues for Boosted Bifunctional Oxygen Electrocatalysis(2023)18 cited
- Preparation and characterization of La_(0.6) Ca_(0.4) CoO_3 as bifunctional oxygen electrode electrocatalyst(2004)
- → Highly Active TAL2 and TAL4 Metal-Organic Framework Derived Bifunctional Oxygen Electrocatalyst(2022)