联苯基交联聚异腈的亚硝酸根电化学响应行为

doi:10.11896/cldb.19120001

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Abstract With benzidine as the starting material, a compound (M1) containing two functional isocyanide groups was successfully prepared via Hofmann method, and a polyisocyanide derivative (P1), which with a crosslinked structure was successfully prepared via Ni²⁺-catalyzed po-lymerization. Electrochemical detection of nitrite (NO₂^-) was achieved by utilizing P1-modified glassy carbon electrode (GCE) as the working electrode. Differential pulse voltammetry (DPV) current signals displayed linear relationship to [NO₂^-] within the concentration of 0.5 to 200 μmol/L, and the corresponding detection limit reached ~ 0.47 μmol/L (3σ/k). Further analysis proves that P1 has specific selectivity and excellent anti-interference for the detection of NO₂^-.

Key words： polyisocyanide crosslinked polymer nitrite electrochemical sensing

Published: 01 July 2021

CLC number:

O625.6

Fund:National Natural Science Foundation of China (21774103) and Southwest Petroleum University Youth Science and Technology Innovation Team (2017CXTD05).

About author:: Kesong Zhang, master, from September 2017 to June 2020, he studied at the College of Chemistry and Che-mical Engineering of Southwest Petroleum University, mainly engaged in the field of polymer material perfor-mance analysis.
Wei Shi, Ph.D, professor, supervisor of master students. The main research direction is the preparation of polymers, composite materials and the corresponding properties investigation.

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	ZHANG Kesong
	SHI Wei
	LIU Sai
	YANG Chang
	ZHOU Xinyu

Cite this article:

ZHANG Kesong,SHI Wei,LIU Sai, et al. Nitrite Electrochemical Response Properties of Biphenyl-based Crosslinked Polyisocyanide[J]. Materials Reports, 2021, 35(12): 12175-12180.

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http://www.mater-rep.com/EN/10.11896/cldb.19120001 OR http://www.mater-rep.com/EN/Y2021/V35/I12/12175

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