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Engineering porous architectures in multicomponent PdCuBP mesoporous nanospheres for electrocatalytic ethanol oxidation

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Nano Research 2021年第9期14卷 3274-3281页

作者： Hao Lv Yaru Wang Dongdong Xu Ben Liu Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool oj Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023China College of Chemistry Sichuan UniversityChengdu 610064China

porous features of mesoporous metal nanocrystals are critically important for their applications in catalysis,sorption,and biomedicine and ***,precisely engineering porous architectures of mesoporous metals is still highly ***,we report a facile soft-templating strategy to precisely engineer porous architectures of multicomponent PdCuBP mesoporous nanospheres(MSs)by using the surfactants with different amphiphilic *** kinds of MSs with distinct porous architectures,including three-dimensional(3D)opened/interconnected dendritic mesopores(dMSs),one-dimensional(1D)cylindered mesopores(cMSs),and zero-dimensional(0D)spherical mesopores(sMSs),are *** surfactant-templating method is generally extended to regulate elemental compositions of multicomponent *** resultant Pd-based MSs have been evaluated as the electrocatalysts for ethanol oxidation reaction(EOR).Our results show that quaternary PdCuBP dMSs display remarkably high catalytic activity and better stability for electrocatalytic EOR,compared to those of multicomponent MSs with other porous architectures and less elemental *** studies reveal that PdCuBP dMSs combine multiple structural and compositional advantages,which kinetically accelerate the electron/mass transfers and also improve the tolerances to poisoning *** believe that the porous architecture engineering in mesoporous metal electrocatalysts will present a new way to design highly efficient electrocatalysts with desired porous systems and explore their relations towards(electro)catalysis.

关键词： porous architectures multicomponent alloys mesoporous nanosphere surfactant electrocatalysis

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