Enhanced room-temperature NO2-sensing performance of AgNPs/rGO nanocomposites

Weiwei Li; Wenzhi Qi; Li Cai; Chuang Li; Yilin Sun; Mengxing Sun; Xiaokuo Yang; Lan Xiang; Dan Xie; Tianling Ren

doi:10.1016/j.cplett.2019.136873

Enhanced room-temperature NO₂-sensing performance of AgNPs/rGO nanocomposites

Weiwei Li, Wenzhi Qi, Li Cai^*, Chuang Li, Yilin Sun, Mengxing Sun, Xiaokuo Yang, Lan Xiang, Dan Xie, Tianling Ren

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Herein, silver nanoparticles (AgNPs)/rGO with different weight percentages of AgNPs is synthesized for NO₂ detection. Results show AgNPs/rGO nanocomposites demonstrate enhanced sensing response and shorter response time, and the 28.4 wt% AgNPs loading sample appears twice response (40%-15 ppm NO₂) as that of rGO. Thus, AgNPs decoration has great influence on NO₂-sensing performance improvement, and the optimized loading content could promote superior properties. Moreover, the influence of gas flow/pressure on AgNPs/rGO sensor properties is studied for applications in varied environments. The enhanced sensor performance may be attributed to more active sites and highly catalytic activity after AgNPs decoration.

Original language	English
Article number	136873
Journal	Chemical Physics Letters
Volume	738
DOIs	https://doi.org/10.1016/j.cplett.2019.136873
Publication status	Published - Jan 2020
Externally published	Yes

Keywords

Ag nanoparticles
Gas sensors
Nitrogen dioxide
Reduced graphene oxide

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10.1016/j.cplett.2019.136873

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@article{bab7c429aca54e528b906d65fcae4c6f,

title = "Enhanced room-temperature NO2-sensing performance of AgNPs/rGO nanocomposites",

abstract = "Herein, silver nanoparticles (AgNPs)/rGO with different weight percentages of AgNPs is synthesized for NO2 detection. Results show AgNPs/rGO nanocomposites demonstrate enhanced sensing response and shorter response time, and the 28.4 wt% AgNPs loading sample appears twice response (40%-15 ppm NO2) as that of rGO. Thus, AgNPs decoration has great influence on NO2-sensing performance improvement, and the optimized loading content could promote superior properties. Moreover, the influence of gas flow/pressure on AgNPs/rGO sensor properties is studied for applications in varied environments. The enhanced sensor performance may be attributed to more active sites and highly catalytic activity after AgNPs decoration.",

keywords = "Ag nanoparticles, Gas sensors, Nitrogen dioxide, Reduced graphene oxide",

author = "Weiwei Li and Wenzhi Qi and Li Cai and Chuang Li and Yilin Sun and Mengxing Sun and Xiaokuo Yang and Lan Xiang and Dan Xie and Tianling Ren",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2020",

month = jan,

doi = "10.1016/j.cplett.2019.136873",

language = "English",

volume = "738",

journal = "Chemical Physics Letters",

issn = "0009-2614",

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TY - JOUR

T1 - Enhanced room-temperature NO2-sensing performance of AgNPs/rGO nanocomposites

AU - Li, Weiwei

AU - Qi, Wenzhi

AU - Cai, Li

AU - Li, Chuang

AU - Sun, Yilin

AU - Sun, Mengxing

AU - Yang, Xiaokuo

AU - Xiang, Lan

AU - Xie, Dan

AU - Ren, Tianling

PY - 2020/1

Y1 - 2020/1

N2 - Herein, silver nanoparticles (AgNPs)/rGO with different weight percentages of AgNPs is synthesized for NO2 detection. Results show AgNPs/rGO nanocomposites demonstrate enhanced sensing response and shorter response time, and the 28.4 wt% AgNPs loading sample appears twice response (40%-15 ppm NO2) as that of rGO. Thus, AgNPs decoration has great influence on NO2-sensing performance improvement, and the optimized loading content could promote superior properties. Moreover, the influence of gas flow/pressure on AgNPs/rGO sensor properties is studied for applications in varied environments. The enhanced sensor performance may be attributed to more active sites and highly catalytic activity after AgNPs decoration.

AB - Herein, silver nanoparticles (AgNPs)/rGO with different weight percentages of AgNPs is synthesized for NO2 detection. Results show AgNPs/rGO nanocomposites demonstrate enhanced sensing response and shorter response time, and the 28.4 wt% AgNPs loading sample appears twice response (40%-15 ppm NO2) as that of rGO. Thus, AgNPs decoration has great influence on NO2-sensing performance improvement, and the optimized loading content could promote superior properties. Moreover, the influence of gas flow/pressure on AgNPs/rGO sensor properties is studied for applications in varied environments. The enhanced sensor performance may be attributed to more active sites and highly catalytic activity after AgNPs decoration.

KW - Ag nanoparticles

KW - Gas sensors

KW - Nitrogen dioxide

KW - Reduced graphene oxide

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U2 - 10.1016/j.cplett.2019.136873

DO - 10.1016/j.cplett.2019.136873

M3 - Article

AN - SCOPUS:85074416472

SN - 0009-2614

VL - 738

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 136873

ER -

Enhanced room-temperature NO₂-sensing performance of AgNPs/rGO nanocomposites

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Keywords

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