One-step synthesis of Ni@Pd/NH_(2)-Fe_(3)O_(4)nanoparticles as affordable catalyst for formic acid dehydrogenation  

作　　者：Mohammad Reza Nabid Yasamin Bide Mahsa Jafari 

机构地区：[1]Department of Polymer&Material Chemistry,Faculty of Chemistry&Petroleum Science,Shahid Beheshti University,Tehran 1983969411,Iran

出　　处：《Chinese Journal of Chemical Engineering》2021年第4期168-174,共7页中国化学工程学报（英文版）

摘　　要：Currently,one of the critical issues in the world is finding an appropriate green alternative to fossil fuels due to the concerns about global warming.As a hydrogen source,formic acid has been given particular attention owing to the attractive features such as highenergy density,no toxicity,high stability at ambient temperature and high hydrogen content.Introducing an affordable and highly efficient catalyst with easy recovery from the reaction mixture for selective dehydrogenation of formic acid is still demanding.In this report,we used a simple onestep process to synthesize Ni@Pd core shell nanoparticles on 3aminopropyltriethoxysilane modified Fe3O4 nanoparticles.The existence of Ni and Pd results in a synergic effect on the catalytic activity.The—NH2 groups play an important role for obtaining welldispersed ultrafine particles with high surface area and active sites.In addition,Fe3O4 lead to convenient magnetic recovery of the catalyst from reaction mixture.Our results indicate that the asprepared catalyst give the superb turnover frequency of 5367.8 h 1 with no additive,which is higher than most of the previously reported catalysts.

关 键 词：CORE-SHELL Fe_(3)O_(4) CATALYSIS DEHYDROGENATION Formic acid 

分 类 号：TQ426[化学工程] TQ116.2[一般工业技术—材料科学与工程] TB383.1