TY - JOUR
T1 - Regulating the Catalytic Dynamics Through a Crystal Structure Modulation of Bimetallic Catalyst
AU - Park, Mihui
AU - Liang, Chaoping
AU - Lee, Tae Hyung
AU - Agyeman, Daniel Adjei
AU - Yang, Junghoon
AU - Lau, Vincent Wing hei
AU - Choi, Sang Il
AU - Jang, Ho Won
AU - Cho, Kyeongjae
AU - Kang, Yong Mook
N1 - Funding Information:
This work was supported by the International Energy Joint R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea. (20168510011350), as well as the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT, NRF-2017R1A2B3004383 and NRF-2017R1A5A1015365).
Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/2/1
Y1 - 2020/2/1
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85078056101
UR - https://www.scopus.com/pages/publications/85078056101#tab=citedBy
U2 - 10.1002/aenm.201903225
DO - 10.1002/aenm.201903225
M3 - Article
AN - SCOPUS:85078056101
SN - 1614-6832
VL - 10
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 8
M1 - 1903225
ER -
