Iron Nanoparticles on Porous Carbon Discs: Electrocatalysts with Over 30% Energy Efficiencies for the Production of Ammonia from Nitrate

Daon Park; Jinuk Choi; Ji Yong Shim; Yoon Kee Kim; Jina Park; Chang Wan Kang; So Young Park; Tae Yong An; Hyojung Lim; Subramani Surendran; Kyoung Chul Ko; Uk Sim; Seung Uk Son

doi:10.1002/advs.202514504

Iron Nanoparticles on Porous Carbon Discs: Electrocatalysts with Over 30% Energy Efficiencies for the Production of Ammonia from Nitrate

Daon Park
, Jinuk Choi
, Ji Yong Shim
, Yoon Kee Kim
, Jina Park
, Chang Wan Kang
, So Young Park
, Tae Yong An
, Hyojung Lim
, Subramani Surendran
, Kyoung Chul Ko
, Uk Sim
, Seung Uk Son

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

Disc-shaped precursor materials (Fe-HBD) are prepared by the complexation of iron with 2,5-dihydroxy-1,4-benzoquinone. Through the carbonization of Fe-HBD at 700 °C, Fe nanoparticles on carbon disc matrixes (CD@Fe-700) are synthesized. The CD@Fe-700 with a high surface area of 424 m² g⁻¹ and micro/mesoporosity showed promising electrocatalytic performance in the nitrate reduction reaction (NO₃RR) to ammonia with ammonia yield rates of 1.8–13.5 mg h⁻¹ cm⁻² at overpotentials of −0.2–−0.6 V (vs. RHE), reaching energy efficiencies up to 32.6–34.7%.

Original language	English
Article number	e14504
Journal	Advanced Science
Volume	12
Issue number	47
DOIs	https://doi.org/10.1002/advs.202514504
State	Published - 18 Dec 2025

Keywords

ammonia
carbon
electrocatalyst
iron
nitrate

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10.1002/advs.202514504

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Park, D., Choi, J., Shim, J. Y., Kim, Y. K., Park, J., Kang, C. W., Park, S. Y., An, T. Y., Lim, H., Surendran, S., Ko, K. C., Sim, U., & Son, S. U. (2025). Iron Nanoparticles on Porous Carbon Discs: Electrocatalysts with Over 30% Energy Efficiencies for the Production of Ammonia from Nitrate. Advanced Science, 12(47), Article e14504. https://doi.org/10.1002/advs.202514504

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title = "Iron Nanoparticles on Porous Carbon Discs: Electrocatalysts with Over 30\% Energy Efficiencies for the Production of Ammonia from Nitrate",

abstract = "Disc-shaped precursor materials (Fe-HBD) are prepared by the complexation of iron with 2,5-dihydroxy-1,4-benzoquinone. Through the carbonization of Fe-HBD at 700 °C, Fe nanoparticles on carbon disc matrixes (CD@Fe-700) are synthesized. The CD@Fe-700 with a high surface area of 424 m2 g−1 and micro/mesoporosity showed promising electrocatalytic performance in the nitrate reduction reaction (NO3RR) to ammonia with ammonia yield rates of 1.8–13.5 mg h−1 cm−2 at overpotentials of −0.2–−0.6 V (vs. RHE), reaching energy efficiencies up to 32.6–34.7\%.",

keywords = "ammonia, carbon, electrocatalyst, iron, nitrate",

author = "Daon Park and Jinuk Choi and Shim, \{Ji Yong\} and Kim, \{Yoon Kee\} and Jina Park and Kang, \{Chang Wan\} and Park, \{So Young\} and An, \{Tae Yong\} and Hyojung Lim and Subramani Surendran and Ko, \{Kyoung Chul\} and Uk Sim and Son, \{Seung Uk\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH.",

year = "2025",

month = dec,

day = "18",

doi = "10.1002/advs.202514504",

language = "English",

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journal = "Advanced Science",

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TY - JOUR

T1 - Iron Nanoparticles on Porous Carbon Discs

T2 - Electrocatalysts with Over 30% Energy Efficiencies for the Production of Ammonia from Nitrate

AU - Park, Daon

AU - Choi, Jinuk

AU - Shim, Ji Yong

AU - Kim, Yoon Kee

AU - Park, Jina

AU - Kang, Chang Wan

AU - Park, So Young

AU - An, Tae Yong

AU - Lim, Hyojung

AU - Surendran, Subramani

AU - Ko, Kyoung Chul

AU - Sim, Uk

AU - Son, Seung Uk

PY - 2025/12/18

Y1 - 2025/12/18

N2 - Disc-shaped precursor materials (Fe-HBD) are prepared by the complexation of iron with 2,5-dihydroxy-1,4-benzoquinone. Through the carbonization of Fe-HBD at 700 °C, Fe nanoparticles on carbon disc matrixes (CD@Fe-700) are synthesized. The CD@Fe-700 with a high surface area of 424 m2 g−1 and micro/mesoporosity showed promising electrocatalytic performance in the nitrate reduction reaction (NO3RR) to ammonia with ammonia yield rates of 1.8–13.5 mg h−1 cm−2 at overpotentials of −0.2–−0.6 V (vs. RHE), reaching energy efficiencies up to 32.6–34.7%.

AB - Disc-shaped precursor materials (Fe-HBD) are prepared by the complexation of iron with 2,5-dihydroxy-1,4-benzoquinone. Through the carbonization of Fe-HBD at 700 °C, Fe nanoparticles on carbon disc matrixes (CD@Fe-700) are synthesized. The CD@Fe-700 with a high surface area of 424 m2 g−1 and micro/mesoporosity showed promising electrocatalytic performance in the nitrate reduction reaction (NO3RR) to ammonia with ammonia yield rates of 1.8–13.5 mg h−1 cm−2 at overpotentials of −0.2–−0.6 V (vs. RHE), reaching energy efficiencies up to 32.6–34.7%.

KW - ammonia

KW - carbon

KW - electrocatalyst

KW - iron

KW - nitrate

UR - https://www.scopus.com/pages/publications/105017975645

U2 - 10.1002/advs.202514504

DO - 10.1002/advs.202514504

M3 - Article

AN - SCOPUS:105017975645

SN - 2198-3844

VL - 12

JO - Advanced Science

JF - Advanced Science

IS - 47

M1 - e14504

ER -

Iron Nanoparticles on Porous Carbon Discs: Electrocatalysts with Over 30% Energy Efficiencies for the Production of Ammonia from Nitrate

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Keywords

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