Regulating RuMo Nanoalloys Anchored on Porous Nitrogen-Doped Carbon via Domain-Confined Etching Strategy for Neutral Efficient Ammonia Electrosynthesis.

Nano Lett

Department of Polymer Materials and Engineering, College of Materials & Metallurgy, Guizhou University, Huaxi District, Guiyang 550025, P.R. China.

Published: October 2024

Neutral electrochemical nitrate (NO) reduction to ammonia involves sluggish and complex kinetics, so developing efficient electrocatalysts at low potential remains challenging. Here, we report a domain-confined etching strategy to construct RuMo nanoalloys on porous nitrogen-doped carbon by optimizing the Ru-to-Mo ratio, achieving efficient neutral NH electrosynthesis. Combining spectroscopy and theoretical simulations demonstrated a rational synergic effect between Ru and Mo in nanoalloys that reinforces *H adsorption and lowers the energy barrier of NO hydrodeoxygenation for NH production. The resultant RuMo-NC surpasses 92.8% for NH selectivity at the potential range from -0.25 to -0.45 V vs RHE under neutral electrolyte, particularly achieving a high NH selectivity of 98.3% and a corresponding yield rate of 1.3 mg h mg at -0.4 V vs RHE. This work provides a synergic strategy that sheds light on a new avenue for developing efficient multicomponent heterogeneous catalysts.

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.nanolett.4c03319DOI Listing

Publication Analysis

Top Keywords

rumo nanoalloys
8
porous nitrogen-doped
8
nitrogen-doped carbon
8
domain-confined etching
8
etching strategy
8
developing efficient
8
regulating rumo
4
nanoalloys anchored
4
anchored porous
4
carbon domain-confined
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!