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Enhancement of NH3 ...
Enhancement of NH3 gas sensing with Ag-Pt co-catalyst on SnO2 nanofilm towards medical diagnosis
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- Duy, Nguyen Van (author)
- Hanoi Univ Sci & Technol HUST, ITIMS, Hanoi, Vietnam
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- Trang, Duong Thi Thuy (author)
- Hanoi Univ Sci & Technol HUST, ITIMS, Hanoi, Vietnam
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- Le, Dang Thi Thanh (author)
- Hanoi Univ Sci & Technol HUST, ITIMS, Hanoi, Vietnam
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- Hung, Chu Manh (author)
- Hanoi Univ Sci & Technol HUST, ITIMS, Hanoi, Vietnam
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- Tonezzer, Matteo (author)
- Univ Trento, Fdn Edmund Mach, Ctr Agr Food Environm, Via E Mach 1, I-38010 San Michele All Adige, Italy.;IMEM CNR, Via Cascata 56 C, I-38123 Trento, Italy
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- Nguyen, Hugo, 1955- (author)
- Uppsala universitet,Mikrosystemteknik
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- Hoa, Nguyen Duc (author)
- Hanoi Univ Sci & Technol HUST, ITIMS, Hanoi, Vietnam
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Hanoi Univ Sci & Technol HUST, ITIMS, Hanoi, Vietnam Univ Trento, Fdn Edmund Mach, Ctr Agr Food Environm, Via E Mach 1, I-38010 San Michele All Adige, Italy;IMEM CNR, Via Cascata 56 C, I-38123 Trento, Italy (creator_code:org_t)
- Elsevier, 2023
- 2023
- English.
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In: Thin Solid Films. - : Elsevier. - 0040-6090 .- 1879-2731. ; 767
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Exhaled breath analysis is a noninvasive diagnostic method for fatal disease monitoring and screening, which is recently gained extensive interest of researchers worldwide emphasizing on the development of effective chemiresistive gas sensor for practical application. Here, the Ag-Pt bimetallic nanoparticles were used to deco-rate nanofilms of SnO2 making different gas sensors with high performance. We found that the bimetal alloy improved the sensor performance significantly with super sensitivity as compared with the separate Ag and Pt catalyst. The right ratio of the bimetal made the sensor very sensitive to NH3, so that it was able to quickly (12 s) detect 1 parts-per-million of NH3 with a response of 4.31 at a temperature of 250 degrees C. The sensor limit of detection for NH3 was less than 10 parts-per-billion. The response of the sensor was negligibly affected by humidity and interfering gases. The results showed that the tiny, robust, and inexpensive sensor developed in this work can be used in breath analysis for early diagnosis via NH3 monitoring.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Övrig annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)
Keyword
- Ammonia
- Gas sensor
- Tin dioxide
- Nanofilm
- Silver-platinum alloy
- Breath diagnosis
Publication and Content Type
- ref (subject category)
- art (subject category)
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