Chung, Dong Young Chung, Young-Hoon Jung, Namgee Choi, Kwang-Hyun Sung, Yung-Eun 2024-01-20T12:04:17Z 2024-01-20T12:04:17Z 2022-01-25 2013-06 1463-9076 https://pubs.kist.re.kr/handle/201004/127984 Heat treatment of nanoparticles could induce the surface rearrangement for more stable facet exposure induced by thermodynamics. By changing the heat treatment environment, we confirmed the correlation between the oxygen reduction activity and the effect of surface oxide and the degree of surface rearrangement of Pt nanoparticles. Native surface oxide was not a critical factor for oxygen reduction activity. However, the degree of surface rearrangement could affect the activity, which was confirmed by the surface sensitive techniques such as COad oxidation and potential of zero total charge. Analysis indicated that the driving force for nanoparticle surface rearrangement was affected by the heat treatment environment such as gas, in our case. English ROYAL SOC CHEMISTRY Correlation between platinum nanoparticle surface rearrangement induced by heat treatment and activity for an oxygen reduction reaction Article 10.1039/c3cp51520f 1 PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.15, no.32, pp.13658 - 13663 PHYSICAL CHEMISTRY CHEMICAL PHYSICS 15 32 13658 13663 N scie scopus 000322401600044 2-s2.0-84884197686 Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Article SINGLE-CRYSTAL ELECTRODES ROTATING-DISK ELECTRODE CO ELECTROOXIDATION PARTICLE-SIZE BIMETALLIC SURFACES CATALYTIC-ACTIVITY PT-RU ELECTROCATALYSTS STABILITY OXIDATION