Pt electrode-based sensor prepared by metal organic chemical vapor deposition for oxygen activity measurements in glass melts

Roberto Vargas-García; Antonio Romero-Serrano; Miguel Angeles-Hernandez; Federico Chavez-Alcala; Carlos Gomez-Yañez

Pt electrode-based sensor prepared by metal organic chemical vapor deposition for oxygen activity measurements in glass melts

Roberto Vargas-García, Antonio Romero-Serrano, Miguel Angeles-Hernandez, Federico Chavez-Alcala, Carlos Gomez-Yañez

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

Abstract

A sensor employing yttria-stabilized zirconia (YSZ) was used to determine the oxygen activity of amber glass at laboratory scale at temperatures from 1473 K to 1673 K. The YSZ sensors were coated with Pt electrode films deposited by the metal organic chemical vapor deposition (MOCVD) method to increase the conductivity of the measuring devices and to diminish their response time. The oxygen potential of glass was related to the oxidation state of iron through the Nernst equation and the free energy of the equilibrium reaction between FeO and Fe₂O₃. The oxidation reduction in the FeO-Fe₂O₃ equilibrium moved towards the reduced side when the temperature of molten glass was increased. A strong correlation of the activity ratio (aFeO_1.5/aaFeO) to the R₂O/C parameter (where R = Na and K) was found at all of the test temperatures.

Original language	English
Pages (from-to)	47-56
Number of pages	10
Journal	Sensors and Materials
Volume	14
Issue number	1
State	Published - 2002
Externally published	Yes

Keywords

Glass melts
Metal organic chemical vapor deposition
Oxygen sensor
Pt film

Cite this

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title = "Pt electrode-based sensor prepared by metal organic chemical vapor deposition for oxygen activity measurements in glass melts",

abstract = "A sensor employing yttria-stabilized zirconia (YSZ) was used to determine the oxygen activity of amber glass at laboratory scale at temperatures from 1473 K to 1673 K. The YSZ sensors were coated with Pt electrode films deposited by the metal organic chemical vapor deposition (MOCVD) method to increase the conductivity of the measuring devices and to diminish their response time. The oxygen potential of glass was related to the oxidation state of iron through the Nernst equation and the free energy of the equilibrium reaction between FeO and Fe2O3. The oxidation reduction in the FeO-Fe2O3 equilibrium moved towards the reduced side when the temperature of molten glass was increased. A strong correlation of the activity ratio (aFeO1.5/aaFeO) to the R2O/C parameter (where R = Na and K) was found at all of the test temperatures.",

keywords = "Glass melts, Metal organic chemical vapor deposition, Oxygen sensor, Pt film",

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T1 - Pt electrode-based sensor prepared by metal organic chemical vapor deposition for oxygen activity measurements in glass melts

AU - Vargas-García, Roberto

AU - Romero-Serrano, Antonio

AU - Angeles-Hernandez, Miguel

AU - Chavez-Alcala, Federico

AU - Gomez-Yañez, Carlos

PY - 2002

Y1 - 2002

N2 - A sensor employing yttria-stabilized zirconia (YSZ) was used to determine the oxygen activity of amber glass at laboratory scale at temperatures from 1473 K to 1673 K. The YSZ sensors were coated with Pt electrode films deposited by the metal organic chemical vapor deposition (MOCVD) method to increase the conductivity of the measuring devices and to diminish their response time. The oxygen potential of glass was related to the oxidation state of iron through the Nernst equation and the free energy of the equilibrium reaction between FeO and Fe2O3. The oxidation reduction in the FeO-Fe2O3 equilibrium moved towards the reduced side when the temperature of molten glass was increased. A strong correlation of the activity ratio (aFeO1.5/aaFeO) to the R2O/C parameter (where R = Na and K) was found at all of the test temperatures.

AB - A sensor employing yttria-stabilized zirconia (YSZ) was used to determine the oxygen activity of amber glass at laboratory scale at temperatures from 1473 K to 1673 K. The YSZ sensors were coated with Pt electrode films deposited by the metal organic chemical vapor deposition (MOCVD) method to increase the conductivity of the measuring devices and to diminish their response time. The oxygen potential of glass was related to the oxidation state of iron through the Nernst equation and the free energy of the equilibrium reaction between FeO and Fe2O3. The oxidation reduction in the FeO-Fe2O3 equilibrium moved towards the reduced side when the temperature of molten glass was increased. A strong correlation of the activity ratio (aFeO1.5/aaFeO) to the R2O/C parameter (where R = Na and K) was found at all of the test temperatures.

KW - Glass melts

KW - Metal organic chemical vapor deposition

KW - Oxygen sensor

KW - Pt film

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M3 - Artículo

SN - 0914-4935

VL - 14

SP - 47

EP - 56

JO - Sensors and Materials

JF - Sensors and Materials

IS - 1

ER -

Pt electrode-based sensor prepared by metal organic chemical vapor deposition for oxygen activity measurements in glass melts

Abstract

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