DataVXAdvanced Energy MaterialsPaper
journal article·2020-02

Regulating the Catalytic Dynamics Through a Crystal Structure Modulation of Bimetallic Catalyst

Mihui Park, Chaoping Liang, Tae Hyung Lee, Daniel Adjei Agyeman, Junghoon Yang, Vincent Wing‐hei Lau, Sang‐Il Choi, Ho Won Jang, Kyeongjae Cho, Yong‐Mook Kang

Advanced Energy Materials· Volume 10· Issue 8
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Source abstract

Abstract

Abstract The surface of solid catalysts is one of the most important factors where the interface with reaction products governs the reaction kinetics. Herein, the crystal phase of palladium–copper nanoparticles (PdCu NPs) is controlled to modulate their surface atomic arrangement, which will govern the growth dynamics of discharge products on their surfaces and thus the catalytic performances in non‐aqueous lithium–oxygen (Li‐O2) batteries. First‐principles calculations and experimental validations reveal that homogeneous nucleation and distribution of discharge products are observed on the surface of body‐centered cubic PdCu NPs, promoting the oxygen reduction/evolution reaction (ORR/OER) activities in Li‐O2 batteries. However, the agglomerates formed on the surface of its face‐centered cubic homologue deteriorates ORR/OER activities, which worsen the battery performances. For the first time, this work theoretically and experimentally demonstrates how the crystal phase modulation regulates the nucleation behaviors and growth dynamics of discharge products for ORR/OER.
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Research context

Energy storageNanomaterialsCatalysis & surfaces

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Electrocatalysts for Energy Conversion

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

Affiliations

Department of Energy and Materials Engineering Dongguk University‐Seoul Seoul 04620 Republic of Korea

Department of Materials Science and Engineering the University of Texas at Dallas Richardson TX 75080 USA

State Key Laboratory of Powder Metallurgy Central South University Changsha Hunan 410083 P. R. China

Department of Materials Science and Engineering Research Institute for Advanced Materials Seoul National University Seoul 08826 Republic of Korea

Department of Chemistry and Green‐Nano Materials Research Center Kyungpook National University Daegu 41566 Republic of Korea

Department of Materials Science and Engineering Korea University Seoul 02841 Republic of Korea

Funding

Korea Institute of Energy Technology Evaluation and Planning · Ministry of Trade, Industry and Energy · National Research Foundation of Korea

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