Large scale uniform Ni-P plated carbon fiber for boosting urea electro-oxidation and electro-detection

Frontiers in Chemistry

Chemistry

Yan-Ru Fan¹  Zhi-Hao Zhang²  Jin-Qi Li³  Jing-He Yang³  Jie Zhang⁴  Yu-Xi Yang⁴ 

[1] Clinical Lab Department, Henan Provincial People’s Hospital, Zhengzhou, China;Department of Infections Disease, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China;School of Chemistry Engineering, Zhengzhou University, Zhengzhou, China;School of Ecology and Environment, Zhengzhou University, Zhengzhou, China;

关键词: urea oxidation;    carbon fibers;    electroless plating;    electrocatalyst;    urea detection;   

DOI  :  10.3389/fchem.2023.1298655

 received in 2023-09-22, accepted in 2023-10-17,  发布年份 2023

来源: Frontiers

【 摘 要 】

Seeking an excellent electrocatalyst is the trickiest issue for the application of urea electro-oxidation and electro-detection. Phosphorus-doped nickel plating on carbon fibers (Ni-P/CF) is synthesized by simple electroless plating. SEM results exhibit that the Ni-P densely and uniformly grows onto the surface of carbon fibers (CF), forming carbon fibers-like nanoarchitectures. Benefiting from the carbon fibers-like nano architectures with abundant exposed active sites on the surface of CF, electron transfer can be synchronously facilitated, and Ni-P/CF displays superior urea electrooxidation (UOR) performance with potentials of 1.40 V to reach 100 mA cm−2. Impressively, it can maintain at 20 mA cm−2 for 48 h without evident activity attenuation, demonstrating robust durability. Cycle stability shows that the voltage has only increased by 10 mV at 300 mA cm−2 from the 10th to 20000th cycles. Most importantly, Ni-P/CF at a length of 100 cm with good reproducibility was successfully synthesized, denoting great potential for large-scale industrial production. Therefore, this work not only affords cost-effective tactics for urea-rich wastewater degradation but also can achieve practical medical applications.

【 授权许可】

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Copyright © 2023 Fan, Li, Yang, Zhang, Zhang and Yang.