Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K2Fe4O7 Electrolyte and Ni/Fe-MOF Sensing Electrodes

被引：31

作者：

Zhang, Yueying ^{[1
]}

Lv, Siyuan ^{[1
]}

Jiang, Li ^{[1
]}

Liu, Fangmeng ^{[1
]}

Wang, Jing ^{[2
]}

Yang, Zijie ^{[1
]}

Wang, Bin ^{[1
]}

You, Rui ^{[3
]}

Wang, Chenguang ^{[1
]}

Yan, Xu ^{[1
]}

Sun, Peng ^{[1
]}

Gao, Yuan ^{[1
]}

Liang, Xishuang ^{[1
]}

Lu, Geyu ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Key Lab Adv Gas Sensors, Changchun 130012, Peoples R China

[2] Changchun Univ Sci & Technol, Sch Elect & Informat Engn, Changchun 130022, Peoples R China

[3] Beijing Informat Sci & Technol Univ, Minist Educ Optoelect Measurement Technol & Instr, Key Lab, Beijing 100192, Peoples R China

来源：

ACS SENSORS | 2021年 / 6卷 / 12期

关键词：

NO sensor; room temperature; Ni-MOF; K2Fe4O7; mixed-potential; STABILIZED-ZIRCONIA; SENSITIVITY; MN; FE; NI;

D O I：

10.1021/acssensors.1c01838

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Portable and sensitive mixed-potential type solid-state electrolyte (MPSE) gas sensors can detect exhali biomarkers in a noninvasive and inexpensive way, which significant for convenient disease diagnosis and saving medical resources. However, high working temperature is still one of the main bottlenecks for hindering MPSE gas sensors' applications in disease diagnosis. Here, we, for the first time, developed and fabricated new room-temperature MPSE gas sensors utilizing K2Fe4O7 electrolyte and Ni/Fe-MOF (Ni/Fe clusters are sx coordinated with 1,4-H2BDC) sensing electrodes (SEs) for the detection of ppb-level NO. Among different MOF SEs, the sensor attached with the Ni-MOF SE presents the highest NO sensitivities. This is attributed to a reducing oxygen reduction reaction activity and enhancing NO electrochemical catalytic reaction activity, verified by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests. In addition, the presented sensor also shows a low detection limit (20 ppb), fast response/recovery characteristic (17 s/6 s to 50 ppb NO), excellent selectivity, acceptable repeatability, and long-term stability of 34 days to NO at 25 degrees C and 60%RH. Simultaneously, the mechanism of humidity effect on the sensing performance was investigated by EIS and CV tests. Our work provides new insight into the development of room-temperature solid-state electrolyte gas sensors based on the mixed-potential mechanism and enlarges the potential application domain.

引用

页码：4435 / 4442

页数：8

共 44 条

[41] Mixed-potential gas sensor with layered Au,Pt-YSZ electrode: Investigating the sensing mechanism with steady state and dynamic electrochemical methods [J].

Zhang, X. ;

Kohler, H. ;

Schwotzer, M. ;

Wu, Y. H. ;

Guth, U. .

SENSORS AND ACTUATORS B-CHEMICAL, 2017, 252 :554-560

[42] NASICON-based gas sensor utilizing MMnO3 (M: Gd, Sm, La) sensing electrode for triethylamine detection [J].

Zhang, Yueying ;

Ma, Ce ;

Yang, Xinyu ;

Song, Yang ;

Liang, Xishuang ;

Zhao, Xu ;

Wang, Yilin ;

Gao, Yuan ;

Liu, Fengmin ;

Liu, Fangmeng ;

Sun, Peng ;

Lu, Geyu .

SENSORS AND ACTUATORS B-CHEMICAL, 2019, 295 :56-64

[43] Single-atom Ni-N4 provides a robust cellular NO sensor [J].

Zhou, Min ;

Jiang, Ying ;

Wang, Guo ;

Wu, Wenjie ;

Chen, Wenxing ;

Yu, Ping ;

Lin, Yuqing ;

Mao, Junjie ;

Mao, Lanqun .

NATURE COMMUNICATIONS, 2020, 11 (01)

[44] Potentiometric NOx sensor based on stabilized zirconia and NiCr2O4 sensing electrode operating at high temperatures [J].

Zhuiykov, S ;

Nakano, T ;

Kunimoto, A ;

Yamazoe, N ;

Miura, N .

ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (02) :97-101

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