Nox sorption-desorption mechanism of ZrO2-based oxide

Suzue Kikuyama; Izumi Matsukuma; Tatsuya Takeguchi; Ryuji Kikuchi; Koichi Eguchi; Kazunari Sasaki

doi:10.1016/s0167-2991(03)80206-9

No_x sorption-desorption mechanism of ZrO₂-based oxide

Suzue Kikuyama, Izumi Matsukuma, Tatsuya Takeguchi, Ryuji Kikuchi, Koichi Eguchi, Kazunari Sasaki

Hydrogen Utilization Engineering

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

1 Citation (Scopus)

Abstract

NO_x sorption-desorption by zirconia-based sorbent, Pt-ZrO₂/Al₂O₃ has been investigated. Oxidation of NO to NO₂ and to nitrate ions is an important role for Pt. At low temperatures below 200°C, the oxidation activity of Pt is insufficient. As the sorption temperature increased, the amount of NO_x desorbing at higher temperatures increased in comparison with the low temperature desorption in TPD. The chemical state of stored NO_x species should be changed by reaction temperatures.

Original language	English
Pages (from-to)	247-250
Number of pages	4
Journal	Studies in Surface Science and Catalysis
Volume	145
DOIs	https://doi.org/10.1016/s0167-2991(03)80206-9
Publication status	Published - 2003

All Science Journal Classification (ASJC) codes

Catalysis
Condensed Matter Physics
Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/s0167-2991(03)80206-9

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title = "Nox sorption-desorption mechanism of ZrO2-based oxide",

abstract = "NOx sorption-desorption by zirconia-based sorbent, Pt-ZrO2/Al2O3 has been investigated. Oxidation of NO to NO2 and to nitrate ions is an important role for Pt. At low temperatures below 200°C, the oxidation activity of Pt is insufficient. As the sorption temperature increased, the amount of NOx desorbing at higher temperatures increased in comparison with the low temperature desorption in TPD. The chemical state of stored NOx species should be changed by reaction temperatures.",

author = "Suzue Kikuyama and Izumi Matsukuma and Tatsuya Takeguchi and Ryuji Kikuchi and Koichi Eguchi and Kazunari Sasaki",

year = "2003",

doi = "10.1016/s0167-2991(03)80206-9",

language = "English",

volume = "145",

pages = "247--250",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Nox sorption-desorption mechanism of ZrO2-based oxide

AU - Kikuyama, Suzue

AU - Matsukuma, Izumi

AU - Takeguchi, Tatsuya

AU - Kikuchi, Ryuji

AU - Eguchi, Koichi

AU - Sasaki, Kazunari

PY - 2003

Y1 - 2003

N2 - NOx sorption-desorption by zirconia-based sorbent, Pt-ZrO2/Al2O3 has been investigated. Oxidation of NO to NO2 and to nitrate ions is an important role for Pt. At low temperatures below 200°C, the oxidation activity of Pt is insufficient. As the sorption temperature increased, the amount of NOx desorbing at higher temperatures increased in comparison with the low temperature desorption in TPD. The chemical state of stored NOx species should be changed by reaction temperatures.

AB - NOx sorption-desorption by zirconia-based sorbent, Pt-ZrO2/Al2O3 has been investigated. Oxidation of NO to NO2 and to nitrate ions is an important role for Pt. At low temperatures below 200°C, the oxidation activity of Pt is insufficient. As the sorption temperature increased, the amount of NOx desorbing at higher temperatures increased in comparison with the low temperature desorption in TPD. The chemical state of stored NOx species should be changed by reaction temperatures.

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U2 - 10.1016/s0167-2991(03)80206-9

DO - 10.1016/s0167-2991(03)80206-9

M3 - Article

AN - SCOPUS:0041306941

SN - 0167-2991

VL - 145

SP - 247

EP - 250

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

No_x sorption-desorption mechanism of ZrO₂-based oxide

Abstract

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