The preparation of silver nanoparticles/carbon nanofibers as catalyst in the styrene epoxidation

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• 作者：Huan Liu ; Jie Bai ; ^{baijie@imut.edu.cn" class="auth_mail} ; Shan Wang ; Chunping Li ; Liping Guo ; Haiou Liang ; Tong Xu ; Weiyan Sun ; Hongqiang Li
• 关键词：Ag nanoparticles ; Carbon nanofibers ; Composite fibers ; Catalyst ; Styrene epoxidation
• 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
• 出版年：20 April, 2014
• 年：2014
• 卷：448
• 期：Complete
• 页码：154-159
• 全文大小：1816 K

文摘

The composite nanofibers Ag nanoparticles/carbon nanofibers (Ag NPs/CNFs) were fabricated by electrospinning and high-temperature calcination technology. In the process, AgNO₃/PAN (polyacrylonitrile)/DMF solutions were used as spinning solution precursor and hydrogen as reducing agent. The as-prepared fibers were characterized by infrared absorption spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy, respectively. The result indicated that the Ag NPs (10-30 nm) were well-distributed in the CNFs. The catalytic activity of the Ag NPs/CNFs composite nanofibers were measured in the styrene epoxidation. The Ag NPs/CNFs supported catalyst suggested high catalytic activity in the styrene epoxidation.