| 康振伟,高占臣,孙维朋,张大伟,吕素芳,蒋剑雄,张飞豹.硅纳米片负载钯催化剂的制备及其催化Suzuki反应研究[J].分子催化,2018,32(1):18-26 |
| 硅纳米片负载钯催化剂的制备及其催化Suzuki反应研究 |
| Preparation of Silicon Nanosheet Supported Palladium as Sustainable Catalyst for Suzuki Reactions |
| 投稿时间：2017-11-22 修订日期：2017-12-31 |
| DOI： |
| 中文关键词: 硅纳米片 钯催化剂 Suzuki反应 |
| 英文关键词:silicon nanosheet palladium catalyst suzuki reactio |
| 基金项目:浙江省自然科学基金（No.LY18B040003）和高层次留学回国人员（团队）在杭创业创新资助项目 |
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| 中文摘要: |
| 通过硅化钙在酸性条件下水解制得二维硅纳米片载体材料，经3-氨丙基三乙氧基硅烷化学改性后与钯配位，再经还原得到了一种新型的硅纳米片负载钯催化剂，采用透射电镜和电感耦合等离子体质谱（ICP-MS）等手段对其进行了表征.并将该催化剂成功应用于Suzuki反应，结果表明，硅纳米片负载钯催化剂在较低的钯催化量和空气氛围下即可有效地催化多种溴代芳烃和芳基硼酸的Suzuki偶联反应.此外，该催化剂经8次循环使用后，催化活性无明显下降. |
| 英文摘要: |
| Silicon nanosheets were served as supports for palladium nanoparticles which were modified with 3-ami-nopropyltriethoxysilane, followed by treatment with palladium chloride, and then the reduction with N2H4·H2O in ethanol. After vacuum drying, the functionalized nanosheets supported palladium catalysts (Pd/AS-SNS) were obtained. The products were confirmed by transmission electron microscopy(TEM) and inductively coupled plasma mass spectrometry(ICP-MS). The catalytic properties of the materials(Pd/AS-SNS) were tested for the Suzuki reactions and exhibited very high activity, recoverability and stability with a wide range of bromotoluene and phenylboronic acid with electron donating and electron-withdrawing groups or without. The recovered catalyst could maintain its original activity even in the eighth cycle under optimized conditions. |
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