Rational design of nitrogen-doped carbon for palladium catalysts in hydrogenation of hydrazo compounds  

作　　者：Junzhe Xu Shuang Liu Lin Li Xian Qin Ruixin Qu Jinguo Wang Di Liu Gaixia Wei 

机构地区：[1]School of Chemistry and Chemical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China [2]CAS Key Laboratory of Science and Technology on Applied Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China [3]Samsung(China)Semiconductor CO.,LTD,Xi'an 710075,China [4]Qingyang Chemical Industry Corporation,Liaoyang 111001,China

出　　处：《Chinese Journal of Chemical Engineering》2025年第1期156-166,共11页中国化学工程学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(21503264,22179081 and 22076117);Natural Science Foundation of Shanghai(20ZR1422500).

摘　　要：We synthesized CN11,a carbon nitride material rich in sp^(3)hybrid graphitic nitrogen(sp^(3)-N),employing a facile oxalic acid-assisted melamine molecular assembly strategy.CN11 promoted the formation of Pd nanoparticles(NPs)predominantly exposing{200}facets,termed Pd/CN11-2.This facet-specific configuration significantly boosted hydrogen adsorption,leading to notable improvements in catalytic activity.Compared to Pd/XC-72-2 and Pd/g-C_(3)N_(4)-2,Pd/CN11-2 exhibited a remarkable two-fold and nineteen-fold increase in catalytic yield for hydrazo compound hydrogenation,respectively.Pd/CN11-2 also demonstrated robust performance across a range of reaction conditions,maintaining excellent yield.This study emphasizes the critical role of tailored support structures in controlling Pd NPs facets,thereby enhancing hydrogenation efficiency.It provides valuable insights for advancing the industrial application of Pd-based catalysts,underscoring the importance of strategic support modulation for optimizing catalytic performance.

关 键 词：Pd nanocatalyst Nitrogen-doped carbon HYDROGENATION Deprotection of CBz Bimethylation of amino 

分 类 号：O64[理学—物理化学]