Catalytic oxidation of carbon monoxide over superconducting and related cuprates

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Journal of Catalysis; (United States)

DOI:https://doi.org/10.1016/0021-9517(92)90356-M· OSTI ID:7183715

Halasz, I; Brenner, A; Ng, K Y.S. ^[1]; Shelef, M ^[2]

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1. Wayne State Univ., Detroit, MI (United States)
2. Ford Motor Co., Dearborn, MI (United States)

Cuprates are multimetallic oxides composed of copper and one to five more electropositive metals which are usually alkalies, alkaline earths, and rare earths. Most high-temperature superconductors belong to one of four families based on complex La, Y, Bi, or Tl cuprates. The catalytic activity of cuprates. The catalytic activity of cuprates was first reported in 1977, but interest increased in 1987 after the discovery of high-temperature superconductors. Cuprates have been found to be active catalysts for several reactions, including reduction and decomposition of N[sub 2]O, NO, and NO[sub 2], synthesis and dehydrogenation of alcohols, and oxidation of methane, toluene, alcohols, and CO. Due to the disparate results in the literature, the authors further investigated the relationship between structure, electrical conductivity, and catalytic activity of cuprates for CO oxidation. Two superconductors, Bi[sub 2]CaSr[sub 2]Cu[sub 2]O[sub 10 [plus minus] x] and Tl[sub 2]CaBa[sub 2]Cu[sub 2]O[sub 9 [plus minus] x], and two insulating compounds, Y[sub 2]Cu[sub 2]O[sub 5] and Ba[sub 2]CuO[sub 3.4 [plus minus] x], were studied.

• OSTI ID: 7183715
• Journal Information: Journal of Catalysis; (United States), Journal Name: Journal of Catalysis; (United States) Vol. 134:2; ISSN 0021-9517; ISSN JCTLA5
• Country of Publication: United States
• Language: English

Related Subjects

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
54 ENVIRONMENTAL SCIENCES
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Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ALKALINE EARTH METAL COMPOUNDS
AUTOMOBILES
BARIUM COMPOUNDS
BARIUM OXIDES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCINATION
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CONVERTERS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
COPPER OXIDES
CORRELATIONS
CRYSTAL STRUCTURE
CUPRATES
DECOMPOSITION
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EQUIPMENT
EVALUATION
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HIGH-TC SUPERCONDUCTORS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
POLLUTION CONTROL EQUIPMENT
PYROLYSIS
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
SURFACE AREA
SURFACE PROPERTIES
SYNTHESIS
THALLIUM COMPOUNDS
THALLIUM OXIDES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VEHICLES
WASTES
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS