title: Molten salt medium synthesis of wormlike platinum silver nanotubes without any organic surfactant or solvent for methanol and formic acid oxidation.
abstract: In the current research, the PtxAgy (x/y = 86/14, 79/21, 52/48, 21/79, 11/89) nanoparticles (NPs) are synthesized in the KNO3-LiNO3 molten salts without using any organic surfactant or solvent. The SEM results suggest that when the content of Ag is higher than 48%, the wormlike PtxAgy nanotubes (NTs) can be synthesized. The diameter of the PtxAgyNTs shows a slow decrease with the increase of Ag content. The TEM and HRTEM results indicate that the growth of hollow PtxAgy NTs undergoes an oriented attachment process and a Kirkendall effect approach. The results of cyclic voltammetry (CV) measurement indicate that the Pt52Ag48 catalyst presents a remarkable enhancement for methanol electrooxidation, while the Pt86Ag14 catalyst prefers electrochemically oxidizing formic acid compared with that of the commercially available Pt black.
authors.affiliation: School of Chemistry and Environmental Engineering, Shanxi Datong University, Datong 037009, Shan Xi, People's Republic of China. ybsy_g@263.net.
authors.forename: Haidong
authors.initials: H
authors.lastname: Zhao
authors.affiliation: School of Chemistry and Environmental Engineering, Shanxi Datong University, Datong 037009, Shan Xi, People's Republic of China. ybsy_g@263.net.
authors.forename: Rui
authors.initials: R
authors.lastname: Liu
authors.affiliation: School of Chemistry and Environmental Engineering, Shanxi Datong University, Datong 037009, Shan Xi, People's Republic of China. ybsy_g@263.net.
authors.forename: Yong
authors.initials: Y
authors.lastname: Guo
authors.affiliation: School of Science, Key Laboratory of Shaanxi for Advanced Materials and Mesoscopic Physics, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, People's Republic of China. ysch1209@mail.xjtu.edu.cn and Collaborative Innovation Center of Suzhou Nano Science and Technology, Xi'an 710049, Shaanxi, People's Republic of China.
authors.forename: Shengchun
authors.initials: S
authors.lastname: Yang