资源描述：
《conjugated porous polymer Wu_et_al-2014-Advanced_Materials 》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、www.advmat.dewww.MaterialsViews.comHigh-PerformanceElectrocatalystsforOxygenReductionDerivedfromCobaltPorphyrin-BasedConjugatedMesoporousPolymersZhong-ShuaiWu,LongChen,JunzhiLiu,KhaledParvez,HaiweiLiang,JieShu,HermannSachdev,RobertGraf,XinliangFeng,*andKlausMüllen*COMMUNICATIONExplori
2、ngnewelectrocatalystswithenhancedoxygenreductionwithuniformlydistributedmetalnanoparticlesinacarbonactivityandstabilityiscrucialforrenewableenergyapplicationsmatrix.[3134]infuelcells.Thecurrentlyusedplatinum-basedcatalystssufferMetalloporphyrin(Fe,Co)-basedconjugatedporouspolymerfroms
3、luggishkineticsoftheoxygenreductionreaction(ORR),frameworksarenewhigh-surface-areaporousmaterialscon-highcost,andlowstability,especially,inacidicmedia.[14]TosistingofanextendedconjugatedskeletonandinherentreplacethesePt-basedcatalysts,awiderangeofactiveandmesopores.[3537]Theseporouspo
4、lymershaveexhibitedgreatinexpensivenon-preciousmetalcatalysts,includingtransitionpotentialingassorption/separationandcatalysis.[3842]Givenmetal(Fe,Co)nitrogen-coordinatedcomplexes,[59]pyrolyzedtheiruniquecarbon-richskeletonwithinherentmetalnitrogenmetal/nitrogen/carbonhybridsfromtwo(o
5、rmore)individualcoordination,hereinwedemonstratenovelhigh-performanceprecursorsofnitrogenandmetal(Fe,Co)salts,[10,11]conductiveself-supportedoxygenreductionelectrocatalystsobtainedpolymers,[12]transitionmetalchalcogenides(CoS,[13]CoS,[14]throughthetemplate-freepyrolysisofcobaltporphyr
6、in-based3498CoSe,[15]FeS,[16]etc.),metaloxides(ZrO,TiO,SnO,NbO,conjugatedmesoporouspolymer(CoP-CMP)frameworks.222225etc.),[17,18]andmetal-freeheteroatom(N,B,P,S)dopedcar-Theresultingcobalt-nitrogendopedcarbonspossessuniquebons[1922]havebeenactivelyexplored.Amongthem,greatfeatures,such
7、asaribbon-shapedmorphology,ahighsurfaceeffortshavebeendevotedtocatalystsbasedontransitionmetalarea,andamesoporousstructure(420nm).Further,theycon-nitrogen-coordinated(M-N4)complexessuchasmetal(Fe,Co)tainuniformlydistributedcobaltnanoparticlesembeddedinporphyrinsandphthalocyanines.[59]
8、Unfor
