文献类型：期刊文献

英文题名：Pd Nanoparticle Supported on N-Doped Carbon Derived from Sodium Alginate/Melamine Blends as Efficient Heterogeneous Catalyst for Heck Reactions

作者：Zhou, Jie[1];Wu, Yuanyuan[1];Liu, Yonghong[1];Li, Na[1];Yang, Zhen[1];Ying, Jiadi[1];Ren, Xiaorong[1];Zhang, Tao[2];Xu, Wei[2];Chen, Jinyang[1,3];Cao, Xingzhong[4];Yu, Runsheng[4];Zeng, Minfeng[1,2]

机构：[1]Shaoxing Univ, Sch Chem & Chem Engn, Res Ctr Adv Catalyt Mat & Funct Mol Synth, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Peoples R China;[2]Shaoxing Minsheng Pharmaceut Co Ltd, Shaoxing Doctoral Innovat Stn, Shaoxing 312000, Peoples R China;[3]Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China;[4]Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

年份：2025

卷号：17

期号：1

外文期刊名：CHEMCATCHEM

收录：SCI-EXPANDED(收录号：WOS:001394293400022)、、EI(收录号：20250217666572)、Scopus(收录号：2-s2.0-85214537235)、WOS

基金：This work was supported by National Natural Science Foundation of China (Grant No. 12175149, 11875193, and 11475114) and Shaoxing Key Science and Technology Innovation Team Project (No. 2020-34).

语种：英文

外文关键词：Active sites; N-doped carbon; Pd catalysis; Positron annihilation

外文摘要：N-doped porous carbon shows great potential in the field of heterogenous supports due to its high porosity, large surface area, rich active sites, and strong chelation with catalytic active metals species. Herein, we successfully prepared a novel N-doped porous carbon derived from sodium alginate/melamine blends (SAMNC) with different mass ratio through a simple carbonization and activation process. Hierarchical porous structure of the derived N-doped carbon has been confirmed with the SEM, TEM, and N2 adsorption characterization. After Na2PdCl4 solution impregnation and further reduction process, Pd0 nanoparticles have been uniformly immobilized on the SAMNC support to produce novel Pd@SAMNC catalyst. The optimal Pd@SAMNC-0.6 possesses a high N content (5.13%), Pd content (5.90%), large BET specific surface area of 1884.5 m2g-1. Positron annihilation lifetime spectroscopy (PALS) investigation of the porous carbon materials provided the sub-nano level microporous information proofs of Pd@SAMNC-0.6 had the capability to provide more active sites for reactions than commercial Pd supported on activated carbon (Pd@AC). Pd@SAMNC-0.6 catalyst showed superior catalytic efficiency in Heck coupling reaction between aromatic halides and alkenes and can be recycled for 17 runs without significant decrease in catalytic efficiency.