Jang, Yangpil Nam, Hyobin Song, Joseph Lee, Seungyong Ahn, Jae-Pyung Yu, Taekyung 2024-01-19T19:30:32Z 2024-01-19T19:30:32Z 2021-09-05 2019-09 0256-1115 https://pubs.kist.re.kr/handle/201004/119621 This study reports on the aqueous-phase synthesis of rhodium-silver (RhAg) bimetallic composite nanoparticles with a controllable Rh/Ag ratio. Due to the high cost of Rh compared with Ag, the RhAg nanoparticles were synthesized in two steps: the synthesis of Ag nanoparticles and the formation of a Rh-rich RhAg area on the surface of the Ag nanoparticles. Transmission electron microscopy and corresponding elemental mapping analyses exhibited that the synthesized 20 nm-sized quasi-spherical RhAg nanoparticles were composed of Ag-rich and Rh-rich area, respectively. Considering the amount of Rh used and productivity, the RhAg nanoparticles with a Rh content of 0.8% exhibited the best catalytic performance for the direct H2O2 generation reaction. English KOREAN INSTITUTE CHEMICAL ENGINEERS OXYGEN-REDUCTION NANOTUBES OXIDATION Synthesis RhAg bimetallic composite nanoparticles for improved catalysts on direct synthesis of hydrogen peroxide generation Article 10.1007/s11814-019-0337-4 1 KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.36, no.9, pp.1417 - 1420 KOREAN JOURNAL OF CHEMICAL ENGINEERING 36 9 1417 1420 scie scopus kci ART002494104 000483704500004 2-s2.0-85071772052 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article OXYGEN-REDUCTION NANOTUBES OXIDATION RhAg Nanoparticles Bimetallic Aqueous-phase Synthesis Rh-rich Area H2O2 Generation Reaction