DataVXACS Applied Nano MaterialsPaper
journal article·2022-10-28

Pt-Sensitized In2O3 Nanotubes for Sensitive Acetone Monitoring

Zhenlin Song, Wei Guan, Jiyang Zeng, Baoye Zi, Dong Xu, Wei Wang, Yumin Zhang, Genlin Zhang, Zhongqi Zhu, Jin Zhang, Qingju Liu

ACS Applied Nano Materials· Volume 5· Issue 10
Publisher page
Source abstract

Abstract

Detecting 1 ppm acetone at high humidity is essential for a noninvasive diabetes diagnosis. Metal oxide gas sensors are a promising technology to achieve high sensitivity acetone monitoring. Here, we fabricated Pt-sensitized In2O3 nanotubes, and the gas-sensing performance was tested against eight gases. The fiber structure contributes to the uniform dispersion of Pt onto the In2O3. Pt-sensitized In2O3 nanotubes have lower optimal operating temperatures and higher sensitivity and selectivity than those of the In2O3 nanotubes. The 0.75 wt % Pt-In2O3 sensor has the maximum sensitivity (113) to 10 ppm acetone at 300 °C; the response and response time to 1 ppm acetone are 19.9 and 10 s, respectively. The response to 1 ppm acetone still has 9.83 at the relative humidity of 83%. It also has a low limit of detection (8.4 ppb) and good long-term stability (30 days). These results illustrate that Pt-sensitized In2O3 nanotubes have the potential for a noninvasive diabetes diagnosis.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Analytical Chemistry and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, People’s Republic of China

MicroSystems Laboratory, Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, California 92697, United States

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, People’s Republic of China

Funding

National Natural Science Foundation of China · Applied Basic Research Key Project of Yunnan · Young and middle-aged academic and technical leaders reserve talent project in Yunnan Province · Yunnan Yunling Scholars Project

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