Stabilization of ZrO2 Powders via ALD of CeO2 and ZrO2
| العنوان: | Stabilization of ZrO2 Powders via ALD of CeO2 and ZrO2 |
|---|---|
| المؤلفون: | Chao Lin, Tzia Ming Onn, Xinyu Mao, Raymond J. Gorte, Joonbaek Jang |
| المصدر: | Inorganics, Vol 5, Iss 4, p 65 (2017) Inorganics; Volume 5; Issue 4; Pages: 65 |
| بيانات النشر: | MDPI AG, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Materials science, Oxygen storage, Sintering, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, Catalysis, Inorganic Chemistry, Atomic layer deposition, law, lcsh:Inorganic chemistry, ZrO2, Calcination, Wafer, oxygen storage, Shrinkage, sintering, 021001 nanoscience & nanotechnology, CO oxidation, lcsh:QD146-197, 0104 chemical sciences, Chemical engineering, ALD, CeO2, 0210 nano-technology |
| الوصف: | ZrO2 powders were modified by atomic layer deposition (ALD) with CeO2 and ZrO2, using Ce(TMHD)4 and Zr(TMHD)4 as the precursors, in order to determine the effect of ALD films on the structure, surface area, and catalytic properties of the ZrO2. Growth rates were measured gravimetrically and found to be 0.017 nm/cycle for CeO2 and 0.031 nm/cycle for ZrO2. The addition of 20 ALD cycles of either CeO2 or ZrO2 was found to stabilize the surface area of the ZrO2 powder following calcination to 1073 K and to suppress the tetragonal-to-monoclinic transition. Shrinkage of ZrO2 wafers was also suppressed by the ALD films. When used as a support for Pd in CO oxidation, the CeO2-modified materials significantly enhanced rates due to interactions between the Pd and the CeO2. Potential applications for modifying catalyst supports using ALD are discussed. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2304-6740 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a14bb974818e2a0b0d55aaaef0ac42aTest https://www.mdpi.com/2304-6740/5/4/65Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....3a14bb974818e2a0b0d55aaaef0ac42a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23046740 |
|---|