title: X-ray irradiation synthesis of PEG-coated Au-Pd nanoparticles.
abstract: We demonstrate that the combination of x-ray irradiation and capping by polyethylene glycol (PEG) produces excellent flexibility in controlling the structure of Au-Pd nanoparticles while preserving their catalytic performance. We specifically adopted two different fabrication methods: co-reduction and seed-assisted reduction. In both cases, precursor composition plays an important role in controlling the phases and size of the bimetallic nanoparticles. The optimal catalytic performance is obtained with the highest Pd concentration and when the nanoparticles consist of a Au core and a Pd shell.
authors.affiliation: Department of Engineering Science, National Cheng Kung University, Tainan 70100, Taiwan. Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan.
authors.forename: Min-Tsang
authors.initials: MT
authors.lastname: Li
authors.forename: Chang-Hai
authors.initials: CH
authors.lastname: Wang
authors.forename: Sheng-Feng
authors.initials: SF
authors.lastname: Lai
authors.forename: Edwin B L
authors.initials: EB
authors.lastname: Ong
authors.forename: Y H
authors.initials: YH
authors.lastname: Chen
authors.forename: Chung-Kwei
authors.initials: CK
authors.lastname: Lin
authors.forename: G
authors.initials: G
authors.lastname: Margaritondo
authors.forename: Y
authors.initials: Y
authors.lastname: Hwu