AlYami, Noktan M. LaGrow, Alec P. Joya, Khurram S. Hwang, Jinyeon Katsiev, Khabiboulakh Anjum, Dalaver H. Losovyj, Yaroslav Sinatra, Lutfan Kim, Jin Young Bakr, Osman M. 2024-01-20T04:01:58Z 2024-01-20T04:01:58Z 2021-09-04 2016-06-28 1463-9076 https://pubs.kist.re.kr/handle/201004/123948 The catalytic properties of noble metal nanocrystals are a function of their size, structure, and surface composition. In particular, achieving high activity without sacrificing stability is essential for designing commercially viable catalysts. A major challenge in designing state-of-the-art Ru-based catalysts for the oxygen evolution reaction (OER), which is a key step in water splitting, is the poor stability and surface tailorability of these catalysts. In this study, we designed rapidly synthesizable size-controlled, morphology-selective, and surface-tailored platinum-ruthenium core-shell (Pt@Ru) and alloy (PtRu) nanocatalysts in a scalable continuous-flow reactor. These core-shell nanoparticles with atomically precise shells were produced in a single synthetic step with carbon monoxide as the reducing agent. By varying the metal precursor concentration, a dendritic or layer-by-layer ruthenium shell can be grown. The synthesized Pt@Ru and PtRu nanoparticles exhibit noticeably higher electrocatalytic activity in the OER compared to that of pure Pt and Ru nanoparticles. Promisingly, Pt@Ru nanocrystals with a similar to 2-3 atomic layer Ru cuboctahedral shell surpass conventional Ru nanoparticles in terms of both durability and activity. English ROYAL SOC CHEMISTRY SHAPE-CONTROLLED SYNTHESIS WATER-OXIDATION METHANOL ELECTROOXIDATION NANOPARTICLE CATALYSTS ALLOY NANOPARTICLES ELECTRON-TRANSFER COLLOIDAL METAL PHOTOSYSTEM-II FUEL-CELLS SIZE Tailoring ruthenium exposure to enhance the performance of fcc platinum@ruthenium core-shell electrocatalysts in the oxygen evolution reaction Article 10.1039/c6cp01401a 1 PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.18, no.24, pp.16169 - 16178 PHYSICAL CHEMISTRY CHEMICAL PHYSICS 18 24 16169 16178 scie scopus 000381056500013 2-s2.0-84975156661 Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Article SHAPE-CONTROLLED SYNTHESIS WATER-OXIDATION METHANOL ELECTROOXIDATION NANOPARTICLE CATALYSTS ALLOY NANOPARTICLES ELECTRON-TRANSFER COLLOIDAL METAL PHOTOSYSTEM-II FUEL-CELLS SIZE