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Au/graphene hydrogel: synthesis, characterization and its use for catalytic reduction of 4-nitrophenol
Abstract
A cylindrical piece of Au/graphene hydrogel, 1.08 cm in diameter and 1.28 cm in height, has been synthesized through the self-assembly of Au/graphene sheets under hydrothermal conditions for the first time. The hydrogel, containing 2.26 wt% Au, 6.94 wt% graphene, and 90.8 wt% water, exhibited excellent catalytic performance towards the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP), which is about 90 times larger than previously reported values for spongy Au nanoparticles and 14 times more than the highest value among the polymer supported Au nanoparticle catalysts. The high catalytic activity arises from the synergistic effect of graphene: (1) the high adsorption ability of graphene towards 4-NP, providing a high concentration of 4-NP near to the Au nanoparticles on graphene; and (2) electron transfer from graphene to Au nanoparticles, facilitating the uptake of electrons by 4-NP molecules.
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Citations
Cites
Self-Assembled Graphene Hydrogel via a One-Step Hydrothermal Process
Xu, Y., Sheng, K., Li, C., & Shi, G. (2010) · ACS Nano · doi:10.1021/nn101187z · Cited by 3,251
Cited by
Superstructured Assembly of Nanocarbons: Fullerenes, Nanotubes, and Graphene
Li, Z., Liu, Z., Sun, H., & Gao, C. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00102 · Cited by 554
Zhang, Z., Xiao, F., Guo, Y., Wang, S., & Liu, Y. (2013) · ACS Applied Materials & Interfaces · doi:10.1021/am303299r · Cited by 425
Self-citationElectrically conductive hydrogels for flexible energy storage systems
Zhang, W., Feng, P., Chen, J., Sun, Z., & Zhao, B. (2019) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2018.09.001 · Cited by 409
Metal organic frameworks as precursors for the manufacture of advanced catalytic materials
Oar-Arteta, L., Wezendonk, T., Sun, X., Kapteijn, F., & Gascon, J. (2017) · Materials Chemistry Frontiers · doi:10.1039/c7qm00007c · Cited by 361
Advancement in methodologies for reduction of nitroarenes
Kadam, H. K., & Tilve, S. G. (2015) · RSC Advances · doi:10.1039/c5ra10076c · Cited by 360
Metadata
- Authors
- Li, J., Liu, C.-Y., & Liu, Y.
- Venue
- Journal of Materials Chemistry
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2012
- Volume
- 22
- Issue
- 17
- Pages
- 8426
- ISSN
- 0959-9428 (ISSN-L)
- 1364-5501
- OpenAlex
- W2107623126
- Cited by
- 860
- References
- 1
- FWCI
- 31.06
- Type
- journal article
- Language
- en
- Open access
- closed
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- Li, J., Liu, C.-Y., & Liu, Y. (2012). Au/graphene hydrogel: synthesis, characterization and its use for catalytic reduction of 4-nitrophenol. Journal of Materials Chemistry. https://doi.org/10.1039/c2jm16386a
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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