Electron spin-echo and electron spin-resonance studies of cupric ion-adsorbate interactions in hydrogen, sodium, potassium, and calcium mordenite

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100348a052· OSTI ID:6824900

Sass, C E; Kevan, L ^[1]

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1. Univ. of Houston, TX (USA)

The interaction between cupric ion and both polar and nonpolar adsorbates in mordenite-type zeolite was studied as a function of the cocation. Cu{sup 2+} was able to coordinate to three molecules of either water or ammonia in H-mordenite but to only two molecules of each in Na-, K-, or Ca-mordenite. These results suggest that Cu{sup 2+} is located in a site off the main channel in H-mordenite but in a highly twisted 8-ring site in the other forms of mordenite. Evidence based on adsorption and activation studies also suggests that some Cu{sup 2+} is located in an additional, unidentified site in H-mordenite. These results are compared to the results of similar studies of cupric ion in zeolite ZSM-5.

• OSTI ID: 6824900
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 93:11; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION
ALCOHOLS
ALKALI METALS
ALKENES
AMMONIA
COPPER COMPOUNDS
CUPRATES
DATA
ELECTRON SPIN RESONANCE
ELEMENTS
ETHANOL
ETHYLENE
EXPERIMENTAL DATA
HYDRIDES
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MAGNETIC RESONANCE
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
METHANOL
MINERALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POTASSIUM
RESONANCE
SODIUM
SORPTION
TRANSITION ELEMENT COMPOUNDS
WATER
ZEOLITES