Synergistic Catalysis with MIL-101: Stabilized Highly Active Bimetallic NiPd and CuPd Alloy Nanoparticle Catalysts for C-C Coupling Reactions

被引：26

作者：

Dhankhar, Ajay ^{[1
]}

Rai, Rohit K. ^{[1
]}

Tyagi, Deepika ^{[1
]}

Yao, Xin ^{[3
]}

Singh, Sanjay K. ^{[1
,2
]}

机构：

[1] Indian Inst Technol Indore, Discipline Chem, Sch Basic Sci, Indore 453552, Madhya Pradesh, India

[2] Indian Inst Technol Indore, Discipline Met Engn & Mat Sci, Indore 453552, Madhya Pradesh, India

[3] Nanyang Technol Univ, Div Chem & Biol Chem, Sch Phys & Math Sci, 21 Nanyang Link, Singapore 637371, Singapore

来源：

CHEMISTRYSELECT | 2016年 / 1卷 / 12期

关键词：

Alloys; Bimetallic nanoparticles; Catalysis; C-C coupling; Metal-organic frameworks; METAL-ORGANIC FRAMEWORK; CORE-SHELL NANOPARTICLES; SUZUKI-MIYAURA REACTIONS; AU-PD NANOPARTICLES; N-DOPED CARBON; HETEROGENEOUS CATALYST; EFFICIENT CATALYSTS; ROOM-TEMPERATURE; AQUEOUS-SOLUTION; ARYL CHLORIDES;

D O I：

10.1002/slct.201600752

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly active bimetallic NiPd/MIL-101, CuPd/MIL-101 and CoPd/MIL-101 alloy nanoparticle catalysts stabilized by MIL-101 framework, (M/Pd atomic ratio = 95: 5, M = Ni, Cu and Co) were synthesized, and their catalytic activity for Suzuki reaction at moderate reaction conditions was explored. In contrary to monometallic counterparts, a significant enhancement in catalytic activity, with excellent yields for biaryls (upto 97%), was observed with these bimetallic NiPd/MIL-101, CuPd/MIL-101 and CoPd/MIL-101 alloy nanoparticle catalysts. Among these catalysts, NiPd/MIL-101 and CuPd/MIL-101 displayed highest catalytic activity for the synthesis of biaryls for a wide range of substituted aryl halides and arylboronic acids with electron donating and electron withdrawing substituents, whereas CoPd/MIL-101 was found to be poorly active. Worthy to mention that, NiPd/MIL-101 and CuPd/MIL-101 displayed ca 20 times higher TOF (h(-1)) than the Pd/MIL-101 catalyst. The observed high catalytic activity displayed by NiPd/MIL-101 and CuPd/MIL-101 was attributed to the synergistic effect due to electronic charge transfer from Ni or Cu to Pd, and high dispersion of NiPd and CuPd nanoparticles on MIL-101 frameworks.

引用

页码：3223 / 3227

页数：5

共 38 条

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