NO在Er2O3/Bi2O3催化剂上的程序升温分解

null 张伟德; null 李基涛; null 古萍英; null 万惠霖; null 区泽棠

NO在Er₂O₃/Bi₂O₃催化剂上的程序升温分解

Translated title of the contribution: Temperature programmed decomposition of NO over Er₂O₃/Bi₂O₃ catalysts

张伟德, 李基涛, 古萍英, 万惠霖, 区泽棠

Department of Chemistry

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

2 Citations (Scopus)

Abstract

The face centered cubic(fcc) phases of n (Er₂O₃)/ n (Bi₂O₃)=5%～40%, molar fraction) which is an oxygen ion conductor were prepared. The decomposition of NO over these Er₂O₃/Bi₂O₃ catalysts was examined by means of temperature programmed surface reaction. The results showed that the surface adsorbed NO decomposed to N₂ and O₂ at ca. 600 ℃. The plot of NO conversion and Er composition showed that there was an optimum decomposition rate at ca. 23% (molar fraction). Comparing to the data of conductivity, one can conclude that the rate of NO decomposition increases with the increase in the number of oxygen vacancies. This has been contributed to the similar electronic structure between O2 and NO.

Translated title of the contribution	Temperature programmed decomposition of NO over Er₂O₃/Bi₂O₃ catalysts
Original language	Chinese (Simplified)
Pages (from-to)	961-963
Number of pages	3
Journal	高等学校化学学报
Volume	19
Issue number	6
Publication status	Published - 24 Jun 1998

Scopus Subject Areas

Chemistry(all)

User-Defined Keywords

NO, Er2O3／Bi2O3催化剂
程序升温表面分解
NO, Er2O3/Bi2O3 catalyst
Temperature programmed surface decomposition

Access to Document

http://www.cjcu.jlu.edu.cn/CN/Y1998/V19/I6/961

Cite this

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title = "NO在Er2O3/Bi2O3催化剂上的程序升温分解",

abstract = "The face centered cubic(fcc) phases of n (Er2O3)/ n (Bi2O3)=5%～40%, molar fraction) which is an oxygen ion conductor were prepared. The decomposition of NO over these Er2O3/Bi2O3 catalysts was examined by means of temperature programmed surface reaction. The results showed that the surface adsorbed NO decomposed to N2 and O2 at ca. 600 ℃. The plot of NO conversion and Er composition showed that there was an optimum decomposition rate at ca. 23% (molar fraction). Comparing to the data of conductivity, one can conclude that the rate of NO decomposition increases with the increase in the number of oxygen vacancies. This has been contributed to the similar electronic structure between O2 and NO.",

keywords = "NO, Er2O3／Bi2O3催化剂, 程序升温表面分解, NO, Er2O3/Bi2O3 catalyst, Temperature programmed surface decomposition",

author = "张伟德 and 李基涛 and 古萍英 and 万惠霖 and 区泽棠",

year = "1998",

month = jun,

day = "24",

language = "Chinese (Simplified)",

volume = "19",

pages = "961--963",

journal = "高等学校化学学报",

issn = "0251-0790",

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TY - JOUR

T1 - NO在Er2O3/Bi2O3催化剂上的程序升温分解

AU - 张伟德, null

AU - 李基涛, null

AU - 古萍英, null

AU - 万惠霖, null

AU - 区泽棠, null

PY - 1998/6/24

Y1 - 1998/6/24

N2 - The face centered cubic(fcc) phases of n (Er2O3)/ n (Bi2O3)=5%～40%, molar fraction) which is an oxygen ion conductor were prepared. The decomposition of NO over these Er2O3/Bi2O3 catalysts was examined by means of temperature programmed surface reaction. The results showed that the surface adsorbed NO decomposed to N2 and O2 at ca. 600 ℃. The plot of NO conversion and Er composition showed that there was an optimum decomposition rate at ca. 23% (molar fraction). Comparing to the data of conductivity, one can conclude that the rate of NO decomposition increases with the increase in the number of oxygen vacancies. This has been contributed to the similar electronic structure between O2 and NO.

AB - The face centered cubic(fcc) phases of n (Er2O3)/ n (Bi2O3)=5%～40%, molar fraction) which is an oxygen ion conductor were prepared. The decomposition of NO over these Er2O3/Bi2O3 catalysts was examined by means of temperature programmed surface reaction. The results showed that the surface adsorbed NO decomposed to N2 and O2 at ca. 600 ℃. The plot of NO conversion and Er composition showed that there was an optimum decomposition rate at ca. 23% (molar fraction). Comparing to the data of conductivity, one can conclude that the rate of NO decomposition increases with the increase in the number of oxygen vacancies. This has been contributed to the similar electronic structure between O2 and NO.

KW - NO, Er2O3／Bi2O3催化剂

KW - 程序升温表面分解

KW - NO, Er2O3/Bi2O3 catalyst

KW - Temperature programmed surface decomposition

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