Kim, Haengsoo Won, Dongsin Lee, Hong-Ki Yoo, Sung Jong Nahm, Kee Suk Kim, Pil 2024-01-20T08:33:52Z 2024-01-20T08:33:52Z 2021-09-02 2014-10-15 0254-0584 https://pubs.kist.re.kr/handle/201004/126237 The properties of Pt-Ni nanostructures were successfully controlled by employing different Pt precursors in the preparation of Pt-Ni nanocomposites, which were synthesized by a co-reducing Pt and Ni precursors. Pt-Ni nanostructures were obtained by leaching Ni species from the Pt-Ni nanocomposite. The use of H2PtCl6 as a precursor yielded aggregated small Pt particles, while [Pt(NH3)(4)]Cl-2 yielded large hollow Pt nanostructures. A possible mechanism leading to the morphological difference between the two structures was suggested. Owing to a higher electrochemically active surface area and a favorable surface structure, hollow Pt nanostructures from the [Pt(NH3)(4)]Cl-2 precursor showed significantly better performance in ammonia oxidation than the aggregated Pt particles resulting from the H2PtCl6 precursor. (C) 2014 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA HOLLOW NANOPARTICLES METHANOL OXIDATION OXYGEN-REDUCTION PLATINUM NANOCRYSTALS NANOSPHERES ELECTROCATALYSTS FABRICATION NANOTUBES NANOCUBES Effect of the type of Pt precursor on Pt-Ni nanostructures for electro-oxidation of ammonia Article 10.1016/j.matchemphys.2014.06.012 1 MATERIALS CHEMISTRY AND PHYSICS, v.147, no.3, pp.722 - 727 MATERIALS CHEMISTRY AND PHYSICS 147 3 722 727 scie scopus 000340975900052 2-s2.0-84905679762 Materials Science, Multidisciplinary Materials Science Article HOLLOW NANOPARTICLES METHANOL OXIDATION OXYGEN-REDUCTION PLATINUM NANOCRYSTALS NANOSPHERES ELECTROCATALYSTS FABRICATION NANOTUBES NANOCUBES Nanostructures Composite materials Electrochemical techniques Electrochemical properties