articleACS NanoJan 12, 2026Closed access

Interfacial *NO Activation over Ultrafine MoC/Fe 2 O 3 Heterojunctions for Efficient Nitrate-to-Ammonia Electrosynthesis

XZXiu ZhongZWZhenxiao WangYHYingjie HeMLMengting LiuMLMengting Liu

Jiangsu University of Science and Technology · Central South University · +3 more institutions

PubMed
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Abstract

The electrocatalytic nitrate reduction reaction (NO3RR) is often hindered by sluggish kinetics, primarily due to the challenging adsorption and activation of the key intermediate *NO, widely recognized as the rate-determining step. Rational engineering of active sites to modulate *NO binding and facilitate its hydrogenation is therefore essential yet remains a great challenge. Here, we report the design of topologically confined ultrafine MoC/Fe2O3 heterojunctions embedded within interconnected porous carbon nanofibers (Mo1Fe1.5/CNF) via interfacial confinement engineering. This architecture yields a high density of localized relay catalytic sites characterized by Mo(IV)–O-Fe linkages. The resulting…

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5
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17

Topics & keywords

Topics
Keywords
  • Catalysis
  • Heterojunction
  • Adsorption
  • Density functional theory
  • Faraday efficiency
  • X-ray photoelectron spectroscopy
  • Electrosynthesis
  • Yield (engineering)
UN Sustainable Development Goals
  • Affordable and clean energy
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