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X-ray absorption measurement and density functional theory analysis of gallium in gallium-containing beta zeolites

โœ Scribed by An-Chyi Wei; Pang-Hung Liu; Kuei-Jung Chao; Esther Yang; Hsiu-Yao Cheng

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
482 KB
Volume
47
Category
Article
ISSN
1387-1811

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X-ray absorption spectroscopic study on
X-ray absorption spectroscopic study on the states of gallium and platinum in Pt/Ga/H-beta zeolites
โœ Kuei Jung Chao; An Chyi Wei; Hung Chung Wu; Jyj Fu Lee ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 384 KB

X-ray absorption ( XANES and EXAFS ) at the Ga K-edge and the Pt L-edge was used to monitor the variation of chemical states of gallium and platinum under in situ redox treatments in Pt/Ga/H-beta zeolites prepared by incipient wetness impregnation. It was found that the Ga species exist mainly as is