Ambient Ammonia Synthesis via Nitrate Electroreduction in Neutral Media on Fe 3 O 4 Nanoparticles-decorated TiO 2 Nanoribbon Array.
Xun HeJun LiRuizhi LiDonglin ZhaoLongcheng ZhangXianchang JiXiaoya FanJie ChenYan WangYongsong LuoDongdong ZhengLisi XieShengjun SunZhengwei CaiQian LiuKe MaXuping SunPublished in: Inorganic chemistry (2022)
Electrochemical nitrate (NO 3 - ) reduction is a potential approach to produce high-value ammonia (NH 3 ) while removing NO 3 - pollution, but it requires electrocatalysts with high efficiency and selectivity. Herein, we report the development of Fe 3 O 4 nanoparticles decorated TiO 2 nanoribbon array on titanium plate (Fe 3 O 4 @TiO 2 /TP) as an efficient electrocatalyst for NO 3 - -to-NH 3 conversion. When operated in 0.1 M phosphate-buffered saline and 0.1 M NO 3 - , such Fe 3 O 4 @TiO 2 /TP achieves a prominent NH 3 yield of 12394.3 μg h -1 cm -2 and a high Faradaic efficiency of 88.4%. In addition, it exhibits excellent stability during long-time electrolysis.
Keyphrases
- quantum dots
- room temperature
- visible light
- high efficiency
- particulate matter
- nitric oxide
- drinking water
- ionic liquid
- high resolution
- air pollution
- high throughput
- gold nanoparticles
- reduced graphene oxide
- risk assessment
- human health
- heavy metals
- anaerobic digestion
- high density
- metal organic framework
- single cell
- climate change