文献类型：期刊文献

英文题名：l-Arginine-Functionalized Pd-Ni Catalyst Enhances Direct H2O2 Synthesis in Microreactors

作者：Chen, Xuan Chen, Zheng Wu, Lang Hu, Feifei Zhou, Xin Lin, Qian Pan, Hongyan Shi, Yongyong Jiang, Donghai

第一作者：Chen, Xuan

机构：[1] School of Chemistry and Chemical Engineering, Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guizhou University, Guizhou, Guiyang, 550025, China; [2] School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China

第一机构：School of Chemistry and Chemical Engineering, Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guizhou University, Guizhou, Guiyang, 550025, China

通信机构：School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China|贵州理工学院化学工程学院;贵州理工学院;

年份：2025

卷号：41

期号：20

起止页码：12745-12756

外文期刊名：Langmuir

收录：EI(收录号：20252118453448);Scopus(收录号：2-s2.0-105005462093)

语种：英文

摘要：Using an l-arginine (LA)-functionalized Pd-Ni catalyst, hydrogen peroxide (H2O2) was directly synthesized via a self-designed microreactor at ambient temperature and pressure. The yield of H2O2 achieved 574.31g kgcat-1 h-1, with the concentration of H2O2 in the solution reaching 4.05 wt % per hour. After five cycles and online activation, the LA functionalized Pd-Ni catalyst maintained high H2O2 catalytic activity. The catalytic activity evaluation experiments, characterization results, and simulation studies demonstrated that Ni doping and LA-functionalization synergistically modulate the electronic structure of the active Pd component. This modulation increases the concentration of Pd2+ at the active sites, effectively inhibits the dissociation of the O-O bond in O2*, OOH*, and HOOH* species, thereby enhancing the catalytic performance for H2O2 production. This study proposes a systematic strategy for the design of Pd-based catalysts to directly synthesize highly efficient H2O2 ? 2025 American Chemical Society.