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Updated: May 31, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Auene-Supported Transition-Metal Single-Atom Catalysts for Promising Electrocatalytic Nitrogen Reduction
Luxuan Huang1, Jingyao Liu2, Zhong-Min Su1,2
1School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, China.
We identified promising single-atom catalysts (SACs) for sustainable ammonia synthesis via electrochemical nitrogen reduction reaction (NRR). Mo@Auene and Re@Auene show high activity and selectivity, overcoming challenges in N2 activation.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Electrochemical nitrogen reduction reaction (NRR) offers a sustainable pathway for ammonia synthesis.
- Challenges include the inert N≡N bond and competing hydrogen evolution reaction (HER).
- Single-atom catalysts (SACs) on goldene (Auene) offer tunable electronic properties for NRR.
Purpose of the Study:
- To screen transition-metal single-atom catalysts (TM SACs) supported on goldene (TM@Auene) for NRR.
- To identify catalysts with high activity, selectivity, and stability for ammonia synthesis.
- To establish structure-activity relationships for NRR catalyst design.
Main Methods:
- Density functional theory (DFT) was used to screen 25 TM@Auene systems.
- Calculated limiting potentials and N2 adsorption modes (end-on).
- Assessed HER competition, Pourbaix diagrams, and ab initio molecular dynamics (AIMD).
Main Results:
- Mo@Auene and Re@Auene exhibited low limiting potentials (-0.04 and -0.10 V) for NRR.
- A volcano-type relationship between NRR activity and d-electron number was observed.
- Mo@Auene, Re@Auene, and others showed favorable NRR selectivity over HER.
Conclusions:
- Mo@Auene is identified as a highly promising catalyst for electrochemical NRR.
- Auene-supported SACs provide a descriptor-guided platform for designing efficient NRR catalysts.
- Mo@Auene and Re@Auene demonstrate potential for sustainable ammonia synthesis.
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