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Characterization of the Ni(II) Phase Formed on Silica Upon Deposition−Precipitation
Abstract
The nature of the Ni(II) phase formed on silica during the preparation by deposition−precipitation (DP) of Ni/SiO 2 samples is shown to depend on the silica surface area and the time of deposition−precipitation. Ni/SiO 2 samples have been characterized by XRD, IR, EXAFS, TPR, TEM, STEM-EDX, and BET. With silica of low surface area and for short DP time (≤4 h), the Ni(II) phase is mainly a turbostratic nickel hydroxide with a small amount of 1:1 nickel phyllosilicate. With silica of high surface area and for short DP time (≤100 min), the Ni(II) phase is mainly a 1:1 nickel phyllosilicate. For longer DP time (>4 h) and with both types of silica, the Ni(II) phase is an ill-crystallized 1:1 nickel phyllosilicate. However, the latter is better crystallized with silica of low surface area. Almost the same Ni(II) phases were obtained whether silica was porous or not. However, the Ni(II) phase is better crystallized and the interface with the support is larger with nonporous silica than with porous one.
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Cited by
Khodakov, A. Y., Chu, W., & Fongarland, P. (2007) · Chemical Reviews · doi:10.1021/cr050972v · Cited by 2,377
CHEN, L., GUO, P., QIAO, M., YAN, S., LI, H., SHEN, W., XU, H., & FAN, K. (2008) · Journal of Catalysis · doi:10.1016/j.jcat.2008.04.021 · Cited by 615
Importance of Size and Distribution of Ni Nanoparticles for the Hydrodeoxygenation of Microalgae Oil
Song, W., Zhao, C., & Lercher, J. A. (2013) · Chemistry – A European Journal · doi:10.1002/chem.201301005 · Cited by 154
Metadata
- Authors
- Burattin, P., Che, M., & Louis, C.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 1997-09-01
- Volume
- 101
- Issue
- 36
- Pages
- 7060-7074
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W1983131434
- Cited by
- 264
- References
- 0
- FWCI
- 4.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- Burattin, P., Che, M., & Louis, C. (1997). Characterization of the Ni(II) Phase Formed on Silica Upon Deposition−Precipitation. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp970194d
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