Coordination polymers-derived core-shell Co@N-C nanostructures as efficient dual functional catalysts for nitrate electroreduction and Fenton-like catalytic dye degradation

作者：Chu, Jiafan; Liu, Zhuyu; Jiang, Linqi; Cai, Fanghui; Sun, Chunyu; Kong, Aiguo^*; Ding, Hanming

来源：Journal of Solid State Chemistry, 2022, 315: 123485.

DOI：10.1016/j.jssc.2022.123485

• Coordination polymer
• Nitrate reduction reaction
• Rhodamine degradation reaction
• Cobalt
• Core-shell nanostructure
• Electrocatalyst

A new Co-coordination polymer was prepared and thermally converted into the special Co@N-C core-shell nanostructures. It was demonstrated as the efficient and stable electrocatalyst for nitrate electroreduction of (NO3--RR). In neutral Cl--free electrolyte, nitrate was electrochemically reduced into harmless nitrogen (N-2-N) with 94% nitrate conversion and 97% N-2-N selectivity. This Co@N-C material also acted as the efficient catalysts in Fenton-like catalytic degradation system. With very low catalyst amount of 0.1g .L-1, about 90% of Rhodamine B solution (50 mg/L) was quickly degraded within 2 min in the existence of peroxymonosulfate even without additional irradiation.