A new active species of Pd-Nx synthesized by hard-template method for efficiently catalytic hydrogenation of nitroarenes

被引：21

作者：

Cheng, Ming ^{[1
]}

Lv, Peifan ^{[1
]}

Zhang, Xu ^{[2
]}

Xiong, Renjie ^{[1
]}

Guo, Zhenbo ^{[1
]}

Wang, Zhiqiang ^{[3
]}

Zhou, Zhen ^{[2
]}

Zhang, Minghui ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China

[2] Nankai Univ, Key Lab Adv Energy Mat Chem, Sch Mat Sci & Engn, Inst New Energy Mat Chem,Minist Educ, Tianjin 300350, Peoples R China

[3] Tianjin Normal Univ, Tianjin Key Lab Water Environm & Resources, Tianjin 300387, Peoples R China

来源：

JOURNAL OF CATALYSIS | 2021年 / 399卷

关键词：

Pd-N-x species; Hydrogenation of nitroarenes; Hard-template; Pd/g-C3N4; GRAPHITIC CARBON NITRIDE; CHEMOSELECTIVE HYDROGENATION; HYDROTHERMAL SYNTHESIS; FORMIC-ACID; IN-SITU; REDUCTION; PALLADIUM; G-C3N4; NANOPARTICLES; NITROBENZENE;

D O I：

10.1016/j.jcat.2021.05.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new active species of Pd-N-x has been synthesized by hard-template method using metal oxide and dicyandiamide as precursor for the hydrogenation of nitroarenes to anilines. The hydrogenation of 4-nitrophenol (4-NP) was employed as a probe reaction to investigate the catalytic performance. The conversion of 4-NP can reach 99% within 1 h under mild conditions on the Pd/g-C3N4(MoO3)-200 catalyst, which showed much higher activity than the contrasting Pd/g-C3N4 catalyst (11% conversion) prepared by conventional method. A series of fresh and used Pd/g-C3N4, Pd/g-C3N4(MOx), Pd/g-C3N4(MoO3)-X catalysts were characterized. The results indicated that the high catalytic activity and stability of as prepared Pd/g-C3N4(MoO3)-200 catalyst were due to the formation of active Pd-N-x species, and the catalytic performance has a positive correlation with the proportion of Pd-N-x. Moreover, the Pd/g-C3N4(MoO3)-200 catalyst also exhibited excellent catalytic performance towards the hydrogenation of other nitroarenes. (C) 2021 Elsevier Inc. All rights reserved.

引用

页码：182 / 191

页数：10

共 46 条

[1] Palladium(0) nanoparticles formed in situ in the Suzuki-Miyaura reaction: The effect of a palladium(II) precursor [J].