Details

Autor(en) / Beteiligte

• Wang, Jiaqian
• Liang, Jie
• Liu, Pengyu
• Yan, Zhe
• Cui, Linxia
• Yue, Luchao
• Zhang, Longcheng
• Ren, Yuchun
• Li, Tingshuai
• Luo, Yonglan
• Liu, Qian
• Zhao, Xian-En
• Li, Na
• Tang, Bo
• Liu, Yang
• Gao, Shuyan
• Asiri, Abdullah M
• Hao, Haigang
• Gao, Rui
• Sun, Xuping

Titel

Biomass Juncus derived carbon decorated with cobalt nanoparticles enables high-efficiency ammonia electrosynthesis by nitrite reduction

Ist Teil von

• Journal of materials chemistry. A, Materials for energy and sustainability, 2022-02, Vol.1 (6), p.2842-2848

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The electrochemical nitrite (NO 2 − ) reduction reaction (NO 2 RR) is not only a promising strategy to degrade the harmful NO 2 − contaminant in the environment but an attractive alternative to the Haber-Bosch process for sustainable ammonia (NH 3 ) production. It is however hindered by low NO 2 − -to-NH 3 conversion efficiencies and needs superb catalysts to drive the direct six-electron NO 2 RR. Here, we report on developing cobalt nanoparticle decorated biomass Juncus derived carbon as a highly active NO 2 RR catalyst with high durability for NH 3 electrosynthesis. This catalyst shows an NH 3 yield of 2.8 ± 0.1 mol h −1 g Co −1 and a high faradaic efficiency of 96.9 ± 2.1% in alkaline media. The catalytic mechanism is further revealed by density functional theory calculations. Highly dispersed Co nanoparticles on biomass Juncus derived carbon achieve superb nitrite reduction performances with a faradaic efficiency of 96.9% and an NH 3 yield of 2.8 mol h −1 g Co −1 . The catalytic mechanism is revealed by DFT calculations.