C-Pd films selective hydrogen sensing in methane presence

Kamińska, A.; Krawczyk, Sławomir; Czerwosz, E.; Sobczak, Kamil; Kozłowski, Mirosław

doi:10.1016/j.sna.2013.04.006

Cited by 14 publications

(6 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this paper we presented the two best films that we were able to perform in a reproducible manner. Sensor-based on the PVD films was made and operates properly and fast even in an atmosphere of methane [34]. This paper presents results of studies crosssections of films of Pd-C. We have indicated that FIB method allows to create cross-sections without significant damage to the samples and TEM analysis allows to measure accurately measure thickness of layers.…”

Section: Discussionmentioning

confidence: 97%

Transmission electron microscopy studies of the Pd–C films obtained by physical and chemical vapor deposition

Sobczak¹,

Dłuźewski²,

Klepka³

et al. 2012

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 97%

Transmission electron microscopy studies of the Pd–C films obtained by physical and chemical vapor deposition

Sobczak¹,

Dłuźewski²,

Klepka³

et al. 2012

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

“…Thus, as the relationship is so weak, we can control the average size of Pd nanoparticles as well. This information allows for a relatively good control of the average size Pd nanoparticles, and the exercise of sensitive sensory layers for hydrogen PVD film (with average size of Pd ≈ 3 nm), [14,15] and ammonia with PVD/CVD film (with average size of Pd ≈ 150 nm) [16].…”

Section: Resultsmentioning

confidence: 99%

The Influence of Substrate on Size of Pd Nanoparticles in C-Pd Composites Obtained in the PVD and CVD Processes

2017

Self Cite

View full text Add to dashboard Cite

This paper presents the results of research of C-Pd composite films obtained by the physical vapor deposition and chemical vapor deposition method. These films will be applied as hydrogen sensors. It has been examined whether the substrate has an impact on morphology and topologies of the C-Pd composite and whether the thermal conductivity of the substrate has an impact on the average size of the Pd nanoparticles. Substrates such as Al2O3, SiO2, Si, and Mo were used, and in the physical vapor deposition process fullerene (C60) and palladium acetate were deposited. Some of the samples were examined microscopically, while another part was modified in the chemical vapor deposition process in the presence of xylene. It was found that the average size of the Pd nanoparticles prepared in the physical vapor deposition process is independent of the substrate for all of the substrates used in the present experiment. During the chemical vapor deposition process an increase of the size of the Pd nanoparticles was observed -as expected. What is more, we noticed a weak relation between the size of the Pd nanoparticles and the type of substrate on which the C-Pd composite was deposited.

show abstract

“…Numerous grains on the surface of the sample causes the formation many conductive percolation pathways and increase conductivity of film [23][24]. In paper [25] we present that C-Pd films selectively detected hydrogen in the presence of methane in the surrounding atmosphere.…”

Section: C-pd Films As Methane Sensorsmentioning

confidence: 90%

Carbon-palladium films as gas sensors (hydrogen, ammonia, methane)

2014

View full text Add to dashboard Cite

In this paper we present the results of the resistances changes of carbon-palladium films under the influences of gas like hydrogen, ammonia and methane. Our research has shown that carbon-palladium films (C-Pd films) according to the form and the structure in which they appear, they can respond to a variety of gases. The C-Pd film obtained by Physical Vapor Deposition (PVD) method is sensitive to hydrogen and do not respond to the ammonia. Thermal modification of the C-Pd film in Chemical Vapor Deposition (CVD) process affects the morphology of the film, increases its resistance and it causes that this film begins to react to the ammonia. This change causes that this film stops responding on hydrogen. Film sensitive to methane was obtained by changing the technology conditions of the PVD process. The reaction of C-Pd film on the hydrogen and the ammonia is increase resistance, while film sensitive to methane reacts by decrease of initial resistance value. In both cases, the changes are reversible after cleaning by air atmosphere. Different varieties of C-Pd films can be used to build selective sensors for hydrogen, ammonia and methane.

show abstract

C-Pd films selective hydrogen sensing in methane presence

Cited by 14 publications

References 31 publications

Transmission electron microscopy studies of the Pd–C films obtained by physical and chemical vapor deposition

Transmission electron microscopy studies of the Pd–C films obtained by physical and chemical vapor deposition

The Influence of Substrate on Size of Pd Nanoparticles in C-Pd Composites Obtained in the PVD and CVD Processes

Carbon-palladium films as gas sensors (hydrogen, ammonia, methane)

Contact Info

Product

Resources

About