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      https://www.ias.ac.in/article/fulltext/jcsc/131/11/0111

    • Keywords

       

      Pd/FTO; Suzuki coupling; 4-NP reduction.

    • 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, com-positions 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 andsolvents. 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.

    • Author Affiliations

       

      SEK YIN MAK1 KIN HONG LIEW1 CHIA CHIA CHUA1 MOHD AMBAR YARMO1 BADRUL H YAHAYA2 WAN ZURINA SAMAD3 MOHD SUZEREN MD JAMIL1 RAHIMI M YUSOP1 2

      1. School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia
      2. Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200 Kepala Batas, Pulau Pinang, Malaysia
      3. Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia (IIUM Kuantan Campus), Bandar Indera Mahkota, 25200 Kuantan, Pahang, Malaysia
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  • Journal of Chemical Sciences | News

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