DataVXACS Applied Nano MaterialsPaper
journal article·2020-06-26

Quartz Crystal Microbalances Functionalized with Citric Acid-Doped Polyvinyl Acetate Nanofibers for Ammonia Sensing

Roto Roto, Aditya Rianjanu, Annisa Rahmawati, Innas Amaliya Fatyadi, Nursidik Yulianto, Nurhalis Majid, Iqbal Syamsu, Hutomo Suryo Wasisto, Kuwat Triyana

ACS Applied Nano Materials· Volume 3· Issue 6
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Source abstract

Abstract

We fabricated highly sensitive and selective ammonia gas sensors based on quartz crystal microbalance (QCM) platforms that were functionalized with electrospun polyvinyl acetate (PVAc) nanofibers and doped with various organic acids (i.e., oxalic, tartaric, and citric acids). The structural and chemical surface conditions of the nanofiber-based active layers on top of the QCMs were confirmed by scanning electron microscopy (SEM), atomic force microscopy (AFM), and Fourier-transform infrared (FTIR) spectroscopy. The sensitivity of the PVAc nanofiber-based QCM sensor doped with citric acid was found to be the highest (2.95 Hz/ppm) among others with a limit of detection (LOD) of down to the sub-ppm level (550 ppb). It also exhibited good selectivity, rapid response, short recovery time, and decent repeatability. This simple yet low-cost alternative solution based on chemical modification of nanofibers could improve the performance of QCM-based ammonia gas sensors in many areas including for smart electronic nose applications.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Acoustic Wave Resonator Technologies

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

Affiliations

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara PO Box BLS 21, Yogyakarta 55281, Indonesia

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara PO Box BLS 21, Yogyakarta 55281, Indonesia

PT. NanoSense Instrument Indonesia, Umbulharjo, Yogyakarta 55167, Indonesia

Institute of Semiconductor Technology (IHT), Technische Universität Braunschweig, Hans-Sommer-Straße 66, Braunschweig 38106, Germany

Laboratory for Emerging Nanometrology (LENA), Technische Universität Braunschweig, Langer Kamp 6, Braunschweig 38106, Germany

Research Centre for Physics, Indonesian Institute of Sciences (LIPI), Jl. Kawasan Puspiptek No. 441-442, Tangerang Selatan 15314, Indonesia

Institute of Energy Research and Physical Technologies, Technische Universität Clausthal, Leibnizstraße 4, Clausthal-Zellerfeld 38678, Germany

Research Center for Electronics and Telecommunication, Indonesian Institute of Sciences (LIPI), Jl. Sangkuriang - Komplek LIPI Gedung 20, Bandung 40135, Indonesia

Institute of Halal Industry and System (IHIS), Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia

Funding

Nieders?chsisches Ministerium f?r Wissenschaft und Kultur · Kementerian Riset Teknologi Dan Pendidikan Tinggi Republik Indonesia

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