@article{Hu2026, 
author = {Jiao Hu and Jun Zhou and Menglin Zhou and Yao Huang and Xuguang An and Dong Fang and Guangzhi Hu},
title = {Self-supported nano-Ru anchored copper-cobalt oxide nanoplates for efficient electrocatalytic removal of low concentration nitrate},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {8},
pages = {94908836},
keywords = {electrocatalysis, denitrification, nitrate pollution, N2 selectivity},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94908836},
doi = {10.26599/NR.2026.94908836},
abstract = {Nitrate (NO3−) contamination in water adversely affects human health and the ecosystem. Electrochemical methods can remediate environmental NO3− pollution. This study developed Ru-Cu2O/Co3O4@copper foam (CF), a hierarchical catalyst comprising a CF substrate, Cu-Co layered double hydroxide (LDH) nanosheets, and ultrasmall Ru nanoparticles. Traditional characterization confirmed its active component composition and chemical oxidation states. Studies on electrochemical NO3− reduction have evaluated catalytic efficacy under various conditions. This catalyst exhibits exceptional efficacy in NO3− catalysis. At −1.61 V vs. Ag/AgCl, it converts 50 mg/L NO3−–N into pure, environmentally friendly N2 after 4 h, achieving a 98.44% removal efficiency and approximately 100% selectivity, enabling efficient NO3− elimination and green N conversion. Throughout 20 cycles, the removal rate of NO3−–N remained consistently high (94.19%–99.53%), whereas N2 selectivity exhibited excellent stability (93.62%–100%).}
}