Synthesis of graphene encapsulated Fe₃C in carbon nanotubes from biomass and its catalysis application

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• 作者：Juanjuan Shi ; Yingyu Wang ; Weichen Du ; Zhaoyin Hou ; ^{zyhou@zju.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Carbon
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：99
• 期：Complete
• 页码：330-337
• 全文大小：3432 K

文摘

The design and facile synthesis of versatile, non-noble metal catalysts with high activity and stability is extremely important for industrial applications. Herein, a novel, simple and one-pot approach of controlled synthesis of graphene encapsulated Fe₃C that embedded in carbon nanotubes (denoted as Fe₃C@G-CNT) via direct pyrolysis of renewable biomass (glucose, xylitol and sucrose) was reported. Detailed characterizations results indicated that the morphologies and properties of Fe₃C@G-CNT composites depended strongly on pyrolysis temperature. Fe₃C@G-CNT-700 (prepared at 700 °C) was highly active and stable for the hydrogenation of nitroarenes to anilines at 40 °C, and this catalyst was also active for the selective hydrogenation of CC bond in several compounds. The synthetic strategy, the structure of iron carbide-based composite and the proposed mechanism may open a new avenue for the development of hydrogenation catalysts.