Issue 10, 2019

An Fe2O3 nanoparticle-reduced graphene oxide composite for ambient electrocatalytic N2 reduction to NH3

Abstract

The Haber–Bosch process for industrial-scale NH3 production suffers from harsh reaction conditions with CO2 emission. Electrochemical N2 reduction has gained considerable recent interest as an eco-friendly and sustainable alternative for NH3 synthesis with the aid of efficient electrocatalysts for the N2 reduction reaction (NRR). Here, an Fe2O3 nanoparticle-reduced graphene oxide composite (Fe2O3-rGO) is reported to be an Earth-abundant NRR electrocatalyst, enabling efficient ambient N2-to-NH3 conversion. In 0.5 M LiClO4, this Fe2O3-rGO attains a large NH3 yield of 22.13 μg h−1 mg−1cat at −0.50 V and a high faradaic efficiency of 5.89% at −0.40 V (vs. RHE). It also demonstrates high electrochemical stability.

Graphical abstract: An Fe2O3 nanoparticle-reduced graphene oxide composite for ambient electrocatalytic N2 reduction to NH3

Supplementary files

Article information

Article type
Research Article
Submitted
01 Aug 2019
Accepted
01 Sep 2019
First published
02 Sep 2019

Inorg. Chem. Front., 2019,6, 2682-2685

An Fe2O3 nanoparticle-reduced graphene oxide composite for ambient electrocatalytic N2 reduction to NH3

J. Li, X. Zhu, T. Wang, Y. Luo and X. Sun, Inorg. Chem. Front., 2019, 6, 2682 DOI: 10.1039/C9QI00968J

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