Selective and reversible carbon mono oxide gas detection using silver doped octahedral molecular sieves (OMS-2) nanorods

被引：0

作者：

Gupta, Amit Kumar ^{[1
]}

Singh, Priyanshu ^{[1
]}

Jaiswal, Monical ^{[1
]}

Mittal, Jagjiwan ^{[1
]}

Aravindan, Sivanandam ^{[2
]}

Chaudhary, Sumit ^{[3
]}

Sharma, Satinder Kumar ^{[3
]}

Kumar, Robin ^{[1
]}

机构：

[1] Amity Univ, Amity Inst Nanotechnol, Noida Sect 125, Noida 201301, Uttar Pradesh, India

[2] Indian Inst Technol, Delhi 110016, India

[3] Indian Inst Technol, Mandi 110016, India

来源：

ADVANCES IN NATURAL SCIENCES-NANOSCIENCE AND NANOTECHNOLOGY | 2024年 / 15卷 / 03期

关键词：

resistive gas sensor; Ag-OMS-2; thin film; carbon monoxide; gas sensor; nanorods; 2.01; 5.06; 6.08; CO OXIDATION; SENSOR; CATALYST; PERFORMANCE; NANOFIBERS;

D O I：

10.1088/2043-6262/ad6cc4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work a potable, resistive sensor is fabricated for the selective detection of CO gas using nanorods of Ag doped octahedral molecular sieves-2 (Ag-OMS-2). During exposure to carbon monoxide (CO) gas at room temperature, resistance of Ag-OMS-2 film was dropped from 557 k Omega to 352 k Omega in just 18 sec. However, exposed sample regained its initial resistance value in 25 sec when CO gas source was removed. Both sensing and recovery processes were carried out at room temperature. The sensor film showed excellent reproducibility during several cycles of CO gas exposure. Swift activation of oxygen molecules for the oxidation of CO by the silver present in the tunnel of manganese oxide network is supposed to be responsible for sensing activity of Ag-OMS-2 towards carbon monoxide gas.

引用

页数：8

共 23 条

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