Biomass-Derived Carbon Nanospheres with Turbostratic Structure as Metal-Free Catalysts for Selective Hydrogenation of o-Chloronitrobenzene,ACS Sustainable Chemistry & Engineering

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Biomass-Derived Carbon Nanospheres with Turbostratic Structure as Metal-Free Catalysts for Selective Hydrogenation of o-Chloronitrobenzene
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2017-08-21 00:00:00 , DOI: 10.1021/acssuschemeng.7b01280
Peng Zhang _{1,

2} , Xuedan Song ₁ , Chang Yu ₁ , Jianzhou Gui ₂ , Jieshan Qiu ₁

Affiliation

Nowadays, metal-free catalysts are sought after for synthesis of fine chemicals. Herein, we utilized the natural biomass xylose as the precursor to fabricate carbon nanospheres with turbostratic carbon structure via hydrothermal treating and high-temperature calcinating. These green and sustainable carbon materials were used as metal-free catalysts in selective hydrogenation of o-chloronitrobenzene (o-CNB), exhibiting a significantly enhanced catalytic activity with the increasing calcination temperature, as well as 100% selectivity to o-chloroanilines (o-CAN). In terms of the systematic characterization and simulated calculation, it is found turbostratic carbon formed in the calcination process might act as the catalytic active center in this reaction, and its selective reaction with −NO₂ in o-CNB results in the enhanced catalytic activity and fully selectivity to o-CAN.

中文翻译：

具有涡轮层状结构的生物质衍生碳纳米球作为邻氯硝基苯选择性加氢的无金属催化剂

如今，人们正在寻求不含金属的催化剂来合成精细化学品。在本文中，我们利用天然生物质木糖作为前体，通过水热处理和高温煅烧来制备具有涡轮层状碳结构的碳纳米球。这些绿色和可持续的碳材料中的选择性加氢用作无金属催化剂Ö -chloronitrobenzene（ø -CNB），表现出与增加煅烧温度一个显著增强的催化活性，以及100％的选择性，以ö -chloroanilines（ø-能够）。在系统表征和模拟计算而言，可以发现形成在煅烧过程乱层结构碳可能作为在该反应中的催化活性中心，及其与-NO选择性反应₂中ø -CNB导致增强的催化活性和对o -CAN的完全选择性。

更新日期：2017-08-21

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