Sensors for direct methanol fuel cells

Hassan, M A S M; Kamarudin, Siti Kartom; Loh, Kee Shyuan; Daud, Wan Ramli Wan

doi:10.1016/j.rser.2014.07.067

Cited by 9 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since it is ammable, there is a need to monitor the leakage of methanol from on board tanks using a relatively simple system, such as, gas sensors. 9,10 There is a high rate of car accidents resulting from drunk drivers, especially in South Africa, but with the advance in technology, gas sensors can be used to identify drunk drivers through the detection of either methanol or ethanol vapours from their exhaled breath. 11,12 In the past, methanol vapour and other VOCs were detected using highly accurate, but relatively complex, analytical instruments including gas chromatography, 13 spectrophotometers, 14 and optoacoustic spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Selective detection of methanol vapour from a multicomponent gas mixture using a CNPs/ZnO@ZIF-8 based room temperature solid-state sensor

et al. 2022

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Selective detection of methanol vapour from a multicomponent gas mixture using a CNPs/ZnO@ZIF-8 based room temperature solid-state sensor

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Methanol concentration sensors for the DMFC based on sound speed, micro-electromechanical, and total harmonic distortion spectral measurements have been developed. [15][16][17] However, these sensors cannot be integrated into the DMFC.…”

Section: Introductionmentioning

confidence: 99%

Real-time monitoring of methanol concentration using a shear horizontal surface acoustic wave sensor for direct methanol fuel cell without reference liquid measurement

Tada¹,

Nozawa²,

Kondoh³

2017

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

In recent years, there has been an increasing demand for sensors that continuously measure liquid concentrations and detect abnormalities in liquid environments. In this study, a shear horizontal surface acoustic wave (SH-SAW) sensor is applied for the continuous monitoring of liquid concentrations. As the SH-SAW sensor functions using the relative measurement method, it normally needs a reference at each measurement. However, if the sensor is installed in a liquid flow cell, it is difficult to measure a reference liquid. Therefore, it is important to establish an estimation method for liquid concentrations using the SH-SAW sensor without requiring a reference measurement. In this study, the SH-SAW sensor is installed in a direct methanol fuel cell to monitor the methanol concentration. The estimated concentration is compared with a conventional density meter. Moreover, the effect of formic acid is examined. When the fuel temperature is higher than 70 °C, it is necessary to consider the influence of liquid conductivity. Here, an estimation method for these cases is also proposed.

show abstract