@article{ART003342732},
author={Qi Lijie and Liu Shujun and Fu Yu},
title={Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions},
journal={Carbon Letters},
issn={1976-4251},
year={2026},
volume={36},
number={2},
pages={971-981},
doi={10.1007/s42823-026-01043-4}
TY - JOUR
AU - Qi Lijie
AU - Liu Shujun
AU - Fu Yu
TI - Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions
JO - Carbon Letters
PY - 2026
VL - 36
IS - 2
PB - Korean Carbon Society
SP - 971
EP - 981
SN - 1976-4251
AB - The construction of an electrocatalytic NO3− reduction and polyacrylamide (HPAM) oxidation coupled reaction system represents a promising approach for simultaneously achieving ammonia synthesis and HPAM degradation. In this work, FeCo@N-CNTs with a well-defined heterojunction structure were successfully synthesized and employed as an efficient bifunctional electrocatalyst in the NO3− reduction and HPAM oxidation coupled reaction. In the coupled reaction system, The FeCo@N-CNTs catalyst delivered a maximum ammonia yield rate and Faradaic efficiency of 6097.96 ± 15.83 µg h− 1 mgcat−1 and 92.03 ± 1.48%, respectively, while achieving an HPAM degradation rate of 89.99 ± 0.37% within 2 h. In-situ ATR-SEIRAS and in-situ DEMS analyses identified *NHOH as a key intermediate during the ammonia synthesis process and revealed that the heterojunction structure effectively regulates charge distribution and active-site exposure on the catalyst surface. This study offers a new strategy for designing coupled electrochemical systems toward efficient NO3⁻ reduction and organic pollutant oxidation, providing valuable insights for sustainable nitrogen-cycle conversion and wastewater treatment.
KW - Bimetallic active sites Heterojunction structure Electrocatalytic NO3 − reduction HPAM degradation Coupled reaction
DO - 10.1007/s42823-026-01043-4
ER -
Qi Lijie, Liu Shujun and Fu Yu. (2026). Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions. Carbon Letters, 36(2), 971-981.
Qi Lijie, Liu Shujun and Fu Yu. 2026, "Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions", Carbon Letters, vol.36, no.2 pp.971-981. Available from: doi:10.1007/s42823-026-01043-4
Qi Lijie, Liu Shujun, Fu Yu "Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions" Carbon Letters 36.2 pp.971-981 (2026) : 971.
Qi Lijie, Liu Shujun, Fu Yu. Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions. 2026; 36(2), 971-981. Available from: doi:10.1007/s42823-026-01043-4
Qi Lijie, Liu Shujun and Fu Yu. "Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions" Carbon Letters 36, no.2 (2026) : 971-981.doi: 10.1007/s42823-026-01043-4
Qi Lijie; Liu Shujun; Fu Yu. Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions. Carbon Letters, 36(2), 971-981. doi: 10.1007/s42823-026-01043-4
Qi Lijie; Liu Shujun; Fu Yu. Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions. Carbon Letters. 2026; 36(2) 971-981. doi: 10.1007/s42823-026-01043-4
Qi Lijie, Liu Shujun, Fu Yu. Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions. 2026; 36(2), 971-981. Available from: doi:10.1007/s42823-026-01043-4
Qi Lijie, Liu Shujun and Fu Yu. "Construction of FeCo@N-CNTs heterojunction structures for efficient electrocatalytic cathodic nitrate reduction coupled with anodic HPAM oxidation reactions" Carbon Letters 36, no.2 (2026) : 971-981.doi: 10.1007/s42823-026-01043-4
