H2S-Sensing Studies Using Interdigitated Electrode with Spin-Coated Carbon Aerogel-Polyaniline Composites

被引：18

作者：

Bibi, Aamna ^{[1
]}

Rubio, Yuola Rose M. ^{[1
]}

Santiago, Karen S. ^{[2
]}

Jia, His-Wei ^{[1
]}

Ahmed, Mahmoud M. M. ^{[1
]}

Lin, Yi-Feng ^{[3
,4
]}

Yeh, Jui-Ming ^{[1
]}

机构：

[1] Chung Yuan Christian Univ CYCU, Dept Chem, Ctr Nanotechnol, Chungli 32023, Taiwan

[2] Univ Santo Tomas, Coll Sci, Dept Chem, Manila 1015, Philippines

[3] CYCU, Dept Chem Engn, Chungli 32023, Taiwan

[4] CYCU, Ctr Nanotechnol, Chungli 32023, Taiwan

来源：

POLYMERS | 2021年 / 13卷 / 09期

关键词：

polyaniline; carbon aerogel; composite; H2S gas sensor; room temperature; SENSORS; MICROSPHERES; FABRICATION; FILMS; H2S;

D O I：

10.3390/polym13091457

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this paper, carbon aerogel (CA)-polyaniline (PANI) composites were prepared and first applied in the study of H2S gas sensing. Here, 1 and 3 wt% of as-obtained CA powder were blended with PANI to produce composites, which are denoted by PANI-CA-1 and PANI-CA-3, respectively. For the H2S gas-sensing studies, the interdigitated electrode (IDE) was spin-coated by performing PANI and PANI-CA composite dispersion. The H2S gas-sensing properties were studied in terms of the sensor's sensitivity, selectivity and repeatability. IDE coated with PANI-CA composites, as compared with pristine PANI, achieved higher sensor sensitivity, higher selectivity and good repeatability. Moreover, composites that contain higher loading of CA (e.g., 3 wt%) perform better than composites with lower loading of CA. At 1 ppm, PANI-CA-3 displayed increased sensitivity of 452% at relative humidity of 60% with a fast average response time of 1 s compared to PANI.

引用

页数：16

共 48 条

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