Highly sensitive ball surface acoustic wave hydrogen sensor with porous pd-alloy film

Toshihiro Tsuji; Ryosuke Mihara; Tomohiro Saito; Satoshi Hagihara; Toru Oizumi; Nobuo Takeda; Tsuneo Ohgi; Takayuki Yanagisawa; Shingo Akao; Noritaka Nakaso; Kazushi Yamanaka

doi:10.2320/matertrans.I-M2014816

Highly sensitive ball surface acoustic wave hydrogen sensor with porous pd-alloy film

Toshihiro Tsuji, Ryosuke Mihara, Tomohiro Saito, Satoshi Hagihara, Toru Oizumi, Nobuo Takeda, Tsuneo Ohgi, Takayuki Yanagisawa, Shingo Akao, Noritaka Nakaso, Kazushi Yamanaka

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

In order to commonly use explosive H2 gas as an energy source, fast, sensitive, and low-power consumption sensor is required. We developed a ball surface acoustic wave (SAW) sensor with porous PdPt alloy film to realize such a sensor. The sensor with 20% Pt alloying film was useful for the suppression of a phase transition of Pd and the detection of ppm order concentration at 35°C. The amplitude response was proportional to the square root of the concentration, which was demonstrated for the first time in the field of SAW sensor, resulting in the detection limit of 3.7 ppm at signal to noise ratio of 3. The response time decreased to 1/5, compared with those of pioneering H2 sensors working at room temperature. From these results, it was shown that the fastest and most sensitive hydrogen sensor working at room temperature could be realized using the ball SAW sensor with porous Pd alloy film.

Original language	English
Pages (from-to)	1040-1044
Number of pages	5
Journal	Materials Transactions
Volume	55
Issue number	7
DOIs	https://doi.org/10.2320/matertrans.I-M2014816
Publication status	Published - 2014

Keywords

Hydrogen Sensor
Palladium Platinum Alloy
Porous Film
Response Time
Surface Acoustic Wave

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Highly sensitive ball surface acoustic wave hydrogen sensor with porous pd-alloy film. / Tsuji, Toshihiro; Mihara, Ryosuke; Saito, Tomohiro; Hagihara, Satoshi; Oizumi, Toru; Takeda, Nobuo; Ohgi, Tsuneo; Yanagisawa, Takayuki; Akao, Shingo; Nakaso, Noritaka; Yamanaka, Kazushi.

In: Materials Transactions, Vol. 55, No. 7, 2014, p. 1040-1044.

Research output: Contribution to journal › Article › peer-review

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abstract = "In order to commonly use explosive H2 gas as an energy source, fast, sensitive, and low-power consumption sensor is required. We developed a ball surface acoustic wave (SAW) sensor with porous PdPt alloy film to realize such a sensor. The sensor with 20% Pt alloying film was useful for the suppression of a phase transition of Pd and the detection of ppm order concentration at 35°C. The amplitude response was proportional to the square root of the concentration, which was demonstrated for the first time in the field of SAW sensor, resulting in the detection limit of 3.7 ppm at signal to noise ratio of 3. The response time decreased to 1/5, compared with those of pioneering H2 sensors working at room temperature. From these results, it was shown that the fastest and most sensitive hydrogen sensor working at room temperature could be realized using the ball SAW sensor with porous Pd alloy film.",

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AU - Oizumi, Toru

AU - Takeda, Nobuo

AU - Ohgi, Tsuneo

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