文献类型：期刊文献

英文题名：Ultrasonic-assisted-microwave quick synthesis of Pd nanoparticles on N-doped porous carbon for efficient direct hydrogen peroxide synthesis from hydrogen and oxygen at atmospheric pressure

作者：Shi, Yongyong Jiang, Donghai Zhou, Liming Zhao, Jingyun Ma, Jun Lin, Qian Pan, Hongyan

第一作者：Shi, Yongyong

通信作者：Lin, Q[1];Pan, HY[1]

机构：[1]Guizhou Univ, Coll Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China;[2]Guizhou Key Lab Green Chem & Clean Energy Technol, Guiyang 550025, Guizhou, Peoples R China;[3]Guizhou Inst Technol, Coll Chem Engn, Guiyang 550003, Peoples R China

第一机构：Guizhou Univ, Coll Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China

通信机构：corresponding author), Guizhou Univ, Coll Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China.

年份：2023

卷号：16

期号：10

外文期刊名：ARABIAN JOURNAL OF CHEMISTRY

收录：;EI(收录号：20232814382601);Scopus(收录号：2-s2.0-85164228045);WOS:【SCI-EXPANDED(收录号:WOS:001041205100001)】；

基金：This work was financially supported by National Natural Science Foundation of China (Grant No.22068009) , National Natural Science Foundation of China (Grant No.22262006) , Natural Science Basic Research Program of Guizhou Province (Grant No.ZK [2022] 088) , and Cultivation Project of Guizhou University (Grant No. [2020] 38) .

语种：英文

外文关键词：Pd catalyst; Ultrasonic-assisted-microwave; Quick synthesis; N-doped porous carbon

摘要：Directly synthesizing H2O2 from H2 and O2 at atmospheric pressure requires a highly efficient Pd catalyst, which poses a challenge for reasonable design and simple synthesis of Pd catalyst. In this study, a series of Pd/NPCS catalysts were synthesized by various methods with mono disperse, uniform-size and N-doped porous carbon sphere named NPCS as the support and PdCl2 as the palladium precursor. The results indicated that the ultrasonic-assisted-microwave quick synthesis method significantly reduced the synthesis time of Pd catalyst. The Pd nanoparticles obtained via this method were well-distributed on the NPCS support, with a smaller particle size, a narrower particle size distribution range, and more exposed Pd active sites, which leading to improved H2O2 generation rate compared to traditional preparation methods. Additionally, N-doped, high specific surface area, and abundant mixed micro-mesoporous pore structure of NPCS support improved the transfer and diffusion performance of Pd/NPCS catalysts, facilitating the adsorption of reactants and desorption of H2O2 from Pd active sites, and effectively inhibited hydrogenation and decomposition side reactions caused by the breaking of the O-O bond. The ultrasonic-assisted microwave quick synthesis method and excellent NPCS support synergistically improved the catalytic activity and stability of Pd/NPCS catalyst. These findings provide insight into the design and preparation of efficient Pd catalysts for directly synthesizing H2O2 at atmospheric pressure. & COPY; 2023 The Authors. Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).