Evaluating Ru-RuO2 @BN as a Bifunctional Electrocatalyst for the Nitrogen Reduction Reaction and the Hydrogen Evolution Reaction

Sharma, Mitu; Sotsky, Leela; Park, Suji; Sasaki, Kotaro; Frenkel, Anatoly I.; Halada, Gary; Wong, Stanislaus S.

doi:10.1021/acsaem.5c03780

Title: Evaluating Ru-RuO₂ @BN as a Bifunctional Electrocatalyst for the Nitrogen Reduction Reaction and the Hydrogen Evolution Reaction

Journal Article · Thu Feb 19 00:00:00 UTC 2026 · ACS Applied Energy Materials

DOI: https://doi.org/10.1021/acsaem.5c03780 · OSTI ID:3022503

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Stony Brook Univ., NY (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Stony Brook Univ., NY (United States)
Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Brookhaven National Laboratory (BNL), Upton, NY (United States)

Electrochemical approaches toward clean energy production have been the focus of significant attention. Here, the nitrogen (N₂) reduction reaction (NRR) and the hydrogen (H₂) evolution reaction (HER) offer a promising method for producing NH₃ and H₂, respectively. Nevertheless, practical obstacles that must be overcome in creating optimal catalysts are the sluggish kinetics and low selectivity of NRR and HER. Herein, we report on the synthesis of a Ru-RuO₂-decorated boron nitride (BN) catalyst that shows excellent activity toward NRR. A rate of NH3 formation (V_NH3) of 16.8 μg h^-1 mg^-1 and a corresponding Faradaic efficiency (FE) of 52.9% were noted at a potential of −0.5 V in 0.1 M HCl. However, the HER activity of Ru-RuO₂@BN was found to be highly suppressed in 0.1 M HCl and did not yield a reasonable overpotential value. Thus, the capability of this material toward NRR suggests its viability as a promising catalyst for clean NH₃ production.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)

Grant/Contract Number:: SC0012704; SC0022199

OSTI ID:: 3022503

Report Number(s):: BNL--229519-2026-JAAM

Journal Information:: ACS Applied Energy Materials, Journal Name: ACS Applied Energy Materials Journal Issue: 5 Vol. 9; ISSN 2574-0962

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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30 DIRECT ENERGY CONVERSION
boron nitride
electrocatalysis
hydrogen evolution
nitrogen reduction reaction
ruthenium oxide

Title: Evaluating Ru-RuO2 @BN as a Bifunctional Electrocatalyst for the Nitrogen Reduction Reaction and the Hydrogen Evolution Reaction

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Title: Evaluating Ru-RuO₂ @BN as a Bifunctional Electrocatalyst for the Nitrogen Reduction Reaction and the Hydrogen Evolution Reaction