Mak, Sek Yin and Liew, Kin Hong and Chua, Chia Chia and Yarmo, Mohd Ambar and Yahaya, Badrul Hisham and Samad, Wan Zurina and Md Jamil, Mohd Suzeren and M. Yusop, Rahimi (2019) Palladium nanoparticles supported on fluorine-doped tin oxide as an efficient heterogeneous catalyst for Suzuki coupling and 4-nitrophenol reduction. Journal of Chemical Sciences, 131 (11). pp. 1-12. ISSN 0974-3626
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Abstract
Immobilization of palladium nanoparticles onto the fluorine-doped tin oxide (FTO) as support Pd/FTO, resulted in a highly active heterogeneous catalyst for Suzuki-Miyaura cross-coupling reactions and 4-nitrophenol reduction. The Pd/FTO catalyst has been synthesized by immobilization of palladium nanoparticles onto FTO via a simple impregnation method. ICP-MS analysis confirmed that there is 0.11 mmol/g of palladium was loaded successfully on FTO support. The crystallinity, morphologies, compositions and surface properties of Pd/FTO were fully characterized by various techniques. It was further examined for its catalytic activity and robustness in Suzuki coupling reaction with different aryl halides and solvents. The yields obtained from Suzuki coupling reactions were basically over 80%. The prepared catalyst was also tested on mild reaction such as reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). Pd/FTO catalyst exhibited high catalytic activity towards 4-NP reduction with a rate constant of 1.776 min(-1) and turnover frequency (TOF) value of 29.1 hr(-1). The findings revealed that Pd/FTO also maintained its high stability for five consecutive runs in Suzuki reactions and 4-NP reductions. The catalyst showed excellent catalytic activities by using a small amount of Pd/FTO for the Suzuki coupling reaction and 4-NP reduction.
| Item Type: | Article (Journal) |
|---|---|
| Additional Information: | 7639/79753 |
| Uncontrolled Keywords: | Pd/FTO; Suzuki coupling; 4-NP reduction. |
| Subjects: | Q Science > QD Chemistry |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Science Kulliyyah of Science > Department of Chemistry |
| Depositing User: | Dr Wan Zurina Samad |
| Date Deposited: | 23 Mar 2020 17:43 |
| Last Modified: | 23 Mar 2020 17:43 |
| URI: | http://irep.iium.edu.my/id/eprint/79753 |
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