掺杂剂
催化作用
碳化
金属
无机化学
兴奋剂
化学
材料科学
有机化学
冶金
扫描电子显微镜
光电子学
复合材料
作者
Ruijie Gao,Lun Pan,Jinhui Lu,Jisheng Xu,Xiangwen Zhang,Li Wang,Ji‐Jun Zou
出处
期刊:Chemcatchem
[Wiley]
日期:2017-07-13
卷期号:9 (22): 4287-4294
被引量:74
标识
DOI:10.1002/cctc.201700904
摘要
Abstract We report carbon can be activated as metal‐like hydrogenation catalyst for the selective hydrogenation of nitroarenes. Using DFT calculations we demonstrated the combination of P dopant and lattice defect in carbon can cause significant electron delocalization and change the band structure to a metal‐like one, and thus both H 2 and the nitro group are easily activated for selective hydrogenation. Then we fabricated this carbon catalyst with tunable concentration of P dopant and lattice defects by polymerization and carbonization of phytic acid, and found the concentration of lattice defect is closely related to that of P‐dopants. The synthesized catalyst exhibits superior catalytic activity, perfect selectivity, and stability in the hydrogenation of nitroarenes, outperforming the reported metal‐free, metal‐oxide, and nickel catalysts. Importantly, the hydrogenation activity is linearly dependent on the P‐doping and/or defect concentration, perfectly agreeing with the DFT calculation. This work is expected to provide a cheap way for large‐scale production of anilines using metal‐like carbon catalyst.
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