title: Facile preparation of ultralong dendritic PtIrTe nanotubes and their high electrocatalytic activity on methanol oxidation.
abstract: A facile wet chemical approach was developed to prepare ultralong PtIrTe nanotubes (NTs) using Te nanowires (NWs) as template. These PtIrTe NTs were made up of Pt nanodendrites uniformly arrayed on the surface of IrTe NTs and interweaved with each other to nanopores. Their morphology, structure, and composition were investigated by transition electron microscopy, X-ray powder diffraction, and X-ray photoelectron spectroscopy. As expected, these PtIrTe NTs catalysts show a larger surface area, a stronger CO tolerance, and a higher catalytic activity toward electrochemical oxidation of methanol relative to the commercial Pt catalysts due to the 1D porous core-shell structure and the modification of the electronic effect by Ir.
authors.affiliation: Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Life Sciences and Chemistry, Zhejiang Normal University , Jinhua, Zhejiang 321004, China.
authors.forename: Yanfei
authors.initials: Y
authors.lastname: Hao
authors.forename: Yunyun
authors.initials: Y
authors.lastname: Yang
authors.forename: Liji
authors.initials: L
authors.lastname: Hong
authors.forename: Junhua
authors.initials: J
authors.lastname: Yuan
authors.forename: Li
authors.initials: L
authors.lastname: Niu
authors.forename: Yanghai
authors.initials: Y
authors.lastname: Gui
keywords: core−shell; electrocatalysis; methanol oxidation; nanotube