The DOI matches its Crossref record.
Alternative Methods for the Preparation of Gold Nanoparticles Supported on TiO2
Abstract
The best current way to prepare Au/TiO 2 catalysts is the method of deposition−precipitation with NaOH (DP NaOH) developed by Haruta and co-workers. With this method, it is possible to obtain small gold metal particles (2−3 nm), but the corresponding gold loading remains rather low (∼3 wt %). The main goal of this work is to investigate other methods of preparation of Au/TiO 2 catalysts to obtain small gold metal particles (2−3 nm) and a higher Au loading. It is shown that anion adsorption with AuCl 4 - (AA) does not produce Au loading higher than 1.5 wt % and the average particle size is not very small (∼4 nm). Cation adsorption with Au(en) 2 3+ (CA) leads to small particles (2 nm) when the solution/support contact time is moderate (1 h), but the Au loading does not exceed 2 wt %. The most promising method of preparation appears to be deposition−precipitation with urea (DP urea). Indeed, samples with gold particles as small as those obtained with DP NaOH (∼2 nm) can be prepared, and all gold in solution is deposited on TiO 2 in contrast to DP NaOH. The DP urea samples reported in this paper can reach a Au loading as high as 8 wt % using a TiO 2 support with a surface area of 45 m 2 g -1 . The possible mechanisms of deposition of gold on the TiO 2 support by the different methods of preparation are discussed.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Daniel, M.-C., & Astruc, D. (2004) · Chemical Reviews · doi:10.1021/cr030698+ · Cited by 12,446
Hashmi, A. S. K., & Hutchings, G. J. (2006) · Angewandte Chemie International Edition · doi:10.1002/anie.200602454 · Cited by 3,423
Supported gold nanoparticles as catalysts for organic reactions
Corma, A., & Garcia, H. (2008) · Chemical Society Reviews · doi:10.1039/b707314n · Cited by 1,883
Recent Developments in the Synthesis of Supported Catalysts
Munnik, P., de Jongh, P. E., & de Jong, K. P. (2015) · Chemical Reviews · doi:10.1021/cr500486u · Cited by 1,528
Spectroscopic Observation of Dual Catalytic Sites During Oxidation of CO on a Au/TiO 2 Catalyst
Green, I. X., Tang, W., Neurock, M., & Yates, J. T. (2011) · Science · doi:10.1126/science.1207272 · Cited by 1,015
Photocatalysis with Reduced TiO2: From Black TiO2 to Cocatalyst-Free Hydrogen Production
Naldoni, A., Altomare, M., Zoppellaro, G., Liu, N., Kment, Š., Zbořil, R., & Schmuki, P. (2019) · ACS Catalysis · doi:10.1021/acscatal.8b04068 · Cited by 770
Miller, J. T., Kropf, A. J., Zha, Y., Regalbuto, J. R., Delannoy, L., Louis, C., Bus, E., & van Bokhoven, J. A. (2006) · Journal of Catalysis · doi:10.1016/j.jcat.2006.04.004 · Cited by 489
Self-citationRole of the Support in Gold-Containing Nanoparticles as Heterogeneous Catalysts
Sankar, M., He, Q., Engel, R. V., Sainna, M. A., Logsdail, A. J., Roldan, A., Willock, D. J., Agarwal, N., Kiely, C. J., & Hutchings, G. J. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00662 · Cited by 485
Zanella, R. (2004) · Journal of Catalysis · doi:10.1016/j.jcat.2003.11.005 · Cited by 438
Self-citationTitanium Dioxide as a Catalyst Support in Heterogeneous Catalysis
Bagheri, S., Muhd Julkapli, N., & Bee Abd Hamid, S. (2014) · The Scientific World Journal · doi:10.1155/2014/727496 · Cited by 435
Metal–organic framework composites and their electrochemical applications
Xue, Y., Zheng, S., Xue, H., & Pang, H. (2019) · Journal of Materials Chemistry A · doi:10.1039/c8ta12178h · Cited by 389
MOREAU, F., BOND, G., & TAYLOR, A. (2005) · Journal of Catalysis · doi:10.1016/j.jcat.2005.01.030 · Cited by 349
Preparation and antibacterial properties of gold nanoparticles: a review
Gu, X., Xu, Z., Gu, L., Xu, H., Han, F., Chen, B., & Pan, X. (2021) · Environmental Chemistry Letters · doi:10.1007/s10311-020-01071-0 · Cited by 253
Kim, M.-S., Lim, S., Chaudhari, N. K., Fang, B., Bae, T.-S., & Yu, J.-S. (2010) · Catalysis Today · doi:10.1016/j.cattod.2010.04.037 · Cited by 15
Metadata
- Authors
- Zanella, R., Giorgio, S., Henry, C. R., & Louis, C.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-07-13
- Volume
- 106
- Issue
- 31
- Pages
- 7634-7642
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2043905222
- Cited by
- 712
- References
- 0
- FWCI
- 8.42
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
