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    Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑
    
                
    
                    
                
    
            
    
        
    
    
    
    
    
    
        
    
            
    
                
    
                    
    
                        
    
                            
    Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑
    
                        
    
                        
                    
    
                    
    
                        
    
                            
    ID：40849818
    
                            
    大?。?.10 MB
    
                            
    頁(yè)數(shù)：8頁(yè)
    
                            
    時(shí)間：2019-08-08
    

                            
                        
    
                        
                        
    
                            
                        
    
                    
    
                
    
                                                            
    
                                                                
                        
    
                                                                                                
    Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑_第1頁(yè)
    
                                                                            
    
                                            
                                        
    
                                                                                                        
    Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑_第2頁(yè)
    
                                                                                                        
    Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑_第3頁(yè)
    
                                                                                                        
    Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑_第4頁(yè)
    
                                                                                                        
    Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑_第5頁(yè)
    
                                                                                                                            
                        
    
                        
    
                            資源描述：
                                                        
    《Efficient ammonia synthesis over a RuLa0.5Ce0.5O1.75 catalyst pre-reduced at hightemperatureRU_高效氨合成 高溫預(yù)還原La0.Ce0.O1.75催化劑》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
    1、ChemicalScienceViewArticleOnlineEDGEARTICLEViewJournal
    2、ViewIssueE?cientammoniasynthesisoveraRu/La0.5Ce0.5O1.75catalystpre-reducedathighCitethis:Chem.Sci.,2018,9,2230temperature?aabaaYutaOgura,KatsutoshiSato,Shin-ichiroMiyahara,YukikoKawano,cdcdbTakaakiTor
    3、iyama,TomokazuYamamoto,SyoMatsumura,SaburoHosokawaaandKatsutoshiNagaoka*Ammoniaisanimportantfeedstockforproducingfertiliserandisalsoapotentialenergycarrier.However,theprocesscurrentlyusedforammoniasynthesis,theHaber–Boschprocess,consumesahugeamountofenerg
    4、y;thereforethedevelopmentofnewcatalystsforsynthesisingammoniaatahighrateundermildconditions(lowtemperatureandlowpressure)isnecessary.Here,weshowthatRu/La0.5Ce0.5O1.75pre-reducedatanunusuallyhightemperature(650C)catalysedammoniasynthesisatextremelyhighrat
    5、esundermildconditions;speci?cally,atareactiontemperatureof350C,therateswere13.4,31.3,andCreativeCommonsAttribution3.0UnportedLicence.44.4mmolg1h1at0.1,1.0,and3.0MPa,respectively.Kineticanalysisrevealedthatthiscatalystisfreeofhydrogenpoisoningundertheco
    6、nditionstested.ElectronenergylossspectroscopycombinedwithO2absorptioncapacitymeasurementsrevealedthatthereducedcatalystconsistedof?neRuparticles(meandiameter<2.0nm)thatwerepartiallycoveredwithpartiallyreducedLa0.5Ce0.5O1.75andweredispersedonathermostables
    7、upport.Furthermore,FouriertransforminfraredspectrameasuredafterN2additiontothecatalystrevealedthatN2adsorptiononRuatomsthatinteracteddirectlywiththereducedLa0.5Ce0.5O1.75weakenedtheN^Nbondandthuspromoteditscleavage,whichistherate-Received17thDecember2017d
    8、eterminingstepforammoniasynthesis.Ourresultsindicatethathigh-temperaturepre-reductionofAccepted13thJanuary2018thiscatalyst,whichconsistsofRusupportedonathermostablecompositeoxidewithacubic?uoriteThisarticleislicensedunderaDOI:10.1039/c7sc05343fstructurean
    9、dcontainingreduciblecerium,resultedintheformationofmanysitesthatwerehighlyrsc.li/chemical-scienceactiveforN2reductionbyhydrogen.OpenAccessArticle.Publishedon15January2018.Downloadedon8/13/20184:01:14AM.Introductiona
                            
    
                        
    
                            
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