Study of electronic states of supported copper in catalytic systems
| Parent link: | Revista Mexicana de Fisica.— , 1952- Vol. 51, iss. 2 suppl..— 2005.— P. 117-121 |
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| Beste egile batzuk: | , , , |
| Gaia: | Different states of copper have been identified on the surface of {gamma}-Al{sub 2}0{sub 3}, mordenite, erionite, clinoptilolite, pumice, and foam copper catalysts by UV-Vis and IR spectroscopy. Zeolite copper shows the highest dispersion, while on the surface of pumice and bulk metal, the portion of oxidized states of copper is small. The modifiers produce a direct effect on the electronic properties of dispersed copper. Ce and Zr oxides cause an increase on the effective charge of copper ions, stabilizing the oxidized state. In contrast, La and Cs oxides lower the effective charge of Cu{sup +} and Cu{sup {delta}}{sup +}{sub n}, and favor their fast reduction. В фонде НТБ ТПУ отсутствует |
| Hizkuntza: | ingelesa |
| Argitaratua: |
2005
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| Gaiak: | |
| Formatua: | Liburu kapitulua |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=599043 |
| Gaia: | Different states of copper have been identified on the surface of {gamma}-Al{sub 2}0{sub 3}, mordenite, erionite, clinoptilolite, pumice, and foam copper catalysts by UV-Vis and IR spectroscopy. Zeolite copper shows the highest dispersion, while on the surface of pumice and bulk metal, the portion of oxidized states of copper is small. The modifiers produce a direct effect on the electronic properties of dispersed copper. Ce and Zr oxides cause an increase on the effective charge of copper ions, stabilizing the oxidized state. In contrast, La and Cs oxides lower the effective charge of Cu{sup +} and Cu{sup {delta}}{sup +}{sub n}, and favor their fast reduction. В фонде НТБ ТПУ отсутствует |
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