DGIST Scholar: Dual-Functional Electrocatalyst Derived from Iron-Porphyrin-Encapsulated Metal-Organic Frameworks

Title: Dual-Functional Electrocatalyst Derived from Iron-Porphyrin-Encapsulated Metal-Organic Frameworks

Citation: Park, Jungwon. (2017-08). Dual-Functional Electrocatalyst Derived from Iron-Porphyrin-Encapsulated Metal-Organic Frameworks. ACS Applied Materials & Interfaces, 9(34), 28758–28765. doi: 10.1021/acsami.7b08786

Author Keywords: iron carbide ; metal organic frameworks ; N-doped carbon ; Fe-N-x ; oxygen reduction reaction ; hydrogen evolution reaction ; high durability

Keywords: OXYGEN-REDUCTION REACTION ; HIGH-PERFORMANCE ELECTROCATALYSTS ; POROUS CARBON ; GRAPHENE OXIDE ; BIFUNCTIONAL ELECTROCATALYST ; NANOWIRE ARRAYS ; SURFACE-AREA ; CATALYST ; FE ; CATHODE

Abstract: Active, stable electrocatalysts based on non-precious metals for the oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) are critical for the development of cost-effective, efficient renewable energy technologies. Here, Fe/Fe3C-embedded nitrogen-doped carbon was fabricated via pyrolysis of iron-porphyrin-encapsulated mesoporous metal-organic frameworks [PCN-333 (Fe), where "PCN" stands for "porous coordination network"] at 700 °C. The various characterization techniques confirmed that Fe- and Fe3C-containing Fe-N-C material (FeP-P333-700) was successfully prepared by pyrolysis of porphyrin-encapsulated PCN-333 (Fe). FeP-P333-700 exhibited superior electrocatalytic performance for the ORR and HER owing to the synergistic effect of Fe/Fe3C and Fe-N-C active sites. © 2017 American Chemical Society.

Show Full Item Record