journal article·2023-05-26Open access

Engineering the Interface of Ceria and Silver Janus Nanoparticles for Enhanced Catalytic Performance in 4-Nitrophenol Conversion

Roger M. Pallares, Sarah L. Karstens, Trevor Arino, Andrew M. Minor, Rebecca J. Abergel

ACS Applied Nano Materials· Volume 6· Issue 10

Abstract

High Resolution Image Download MS PowerPoint Slide In this work, we present a modified simultaneous growth and self-aggregation method that produces ceria and silver Janus nanoparticles for the conversion of 4-nitrophenol, a chemical widely used in several industries. The nanoparticles had cerium-to-silver ratios ranging from 0 to 1.35 and well-defined heterodimer morphologies. By controlling the growth conditions, we have manipulated the interface between ceria and silver, maximizing its exposure to the chemical reactants and increasing the reaction rate constants between 2- and 4-fold. Taken together, these results can inform the design rules to achieve better performing hybrid nanocatalysts.
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Research context

OpenAlex topics: Nanomaterials for catalytic reactions · Catalytic Processes in Materials Science · Nanocluster Synthesis and Applications

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Affiliations

Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Institute for Experimental Molecular Imaging (ExMI), RWTH Aachen University Hospital, Forckenbeckstr. 55, Aachen, 52074, Germany

Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States

National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Department of Nuclear Engineering, University of California, Berkeley, Berkeley, California 94720, United States

Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States

Funding

Basic Energy Sciences

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