| Literature DB >> 28766933 |
Jungwon Park1, Hyunjoon Lee1, Young Eun Bae2, Kyoung Chul Park1, Hoon Ji3, Nak Cheon Jeong3, Min Hyung Lee2, Oh Joong Kwon1,4, Chang Yeon Lee1,4.
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.Entities:
Keywords: Fe−Nx; N-doped carbon; high durability; hydrogen evolution reaction; iron carbide; metal−organic frameworks; oxygen reduction reaction
Year: 2017 PMID： 28766933 DOI： 10.1021/acsami.7b08786
Source DB: PubMed Journal: ACS Appl Mater Interfaces ISSN： 1944-8244 Impact factor: 9.229