DataVXACS Applied Nano MaterialsPaper
journal article·2022-12-23Open access

Complex Alloy and Heterostructure Nanoparticles Derived from Perovskite Oxide Precursors for Catalytic Dry Methane Reforming

Soham Shah, Mingjie Xu, Xiaoqing Pan, Kandis Leslie Gilliard-AbdulAziz

ACS Applied Nano Materials· Volume 5· Issue 12
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Source abstract

Abstract

We have developed a general route for combining Ni, Fe, Co, Cu, and Pd in a nanoparticle using the exsolution mechanism from LaFe0.7Ni0.1Co0.1Cu0.05Pd0.05O3 perovskite oxide precursors. The strong adherence of the nanoparticles to the support yields attractive catalytic properties for dry methane reforming, such as coke resistance and thermal sintering suppression. The reduction of the precursors at 700 and 900 °C yielded NiCoCuPd or NiFeCoCuPd nanoparticles with a size-dependent phase transition from a complex concentrated alloy to phase-separated heterostructures. Our findings indicate that smaller concentrated alloy nanoparticles (∼10 nm) are more effective for methane activation than larger (>20 nm) phase-separated nanoparticles.
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Research context

Metals & alloysCeramics & glassesNanomaterialsElectronic materialsCatalysis & surfaces

OpenAlex topics: Catalytic Processes in Materials Science · Catalysts for Methane Reforming · Catalysis and Oxidation Reactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California─Riverside, Riverside, California 92507, United States

Department of Material Science and Engineering, University of California─Irvine, Irvine, California 92697, United States

Irvine Material Research Institute, University of California─Irvine, Irvine, California 92697, United States

Department of Physics and Astronomy, University of California─Irvine, Irvine, California 92697, United States

Department of Material Science and Engineering, Bourns College of Engineering, University of California─Riverside, Riverside, California 92507, United States

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