title: Shape-Controlled Synthesis of Pt Nanopeanuts.
abstract: Exploring the novel shape of Pt nanoparticles is one of the most useful ways to improve the electrocatalytic performance of Pt in fuel cells. In this work, the Pt nanopeanuts consisting of two nanospheres grown together have been fabricated through a two-step polyol method. The high resolution scanning electron microscope (SEM) images and energy dispersive x-ray (EDX) spectrum collected at adjacent part point out the Pt nanopeanut is apparently different from the two physical attached nanospheres. To understand the growth mechanism of this nanopeanut, the final products in different synthesis situations are studied. The results indicate the interesting morphology of Pt nanopeanuts mainly benefit from the chemical reagent (FeCl3) while the size and homogeneity are greatly affected by the temperature. Furthermore, the electrocatalytic activity of the Pt nanopeanuts has also been demonstrated here. Our two-step synthesis of Pt nanopeanuts not only enlarges the group of Pt nanoparticles, but also provides a beneficial strategy for the synthesis of novel metal nanoparticles.
authors.affiliation: Soft Matter and Interdisciplinary Research Center, College of Physics, Chongqing University, Chongqing, 400044, P. R. China.
authors.forename: Xuemei
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: Zengzilu
authors.initials: Z
authors.lastname: Xia
authors.affiliation: Soft Matter and Interdisciplinary Research Center, College of Physics, Chongqing University, Chongqing, 400044, P. R. China.
authors.forename: Yingzhou
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Soft Matter and Interdisciplinary Research Center, College of Physics, Chongqing University, Chongqing, 400044, P. R. China.
authors.forename: Yunpeng
authors.initials: Y
authors.lastname: Jia
authors.affiliation: Soft Matter and Interdisciplinary Research Center, College of Physics, Chongqing University, Chongqing, 400044, P. R. China.
authors.forename: Xiaonan
authors.initials: X
authors.lastname: Sun
authors.affiliation: The State Key Laboratory of Power Transmission Equipment &System Security and New Technology, College of Chemistry and Chemical Engineering, Chongqing University, 400044, P. R. China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Li
authors.affiliation: The State Key Laboratory of Power Transmission Equipment &System Security and New Technology, College of Chemistry and Chemical Engineering, Chongqing University, 400044, P. R. China.
authors.forename: Xueming
authors.initials: X
authors.lastname: Li
authors.affiliation: The State Key Laboratory of Power Transmission Equipment &System Security and New Technology, College of Chemistry and Chemical Engineering, Chongqing University, 400044, P. R. China.
authors.forename: Rui
authors.initials: R
authors.lastname: Wu
authors.affiliation: Soft Matter and Interdisciplinary Research Center, College of Physics, Chongqing University, Chongqing, 400044, P. R. China.
authors.forename: Anping
authors.initials: A
authors.lastname: Liu
authors.affiliation: The State Key Laboratory of Power Transmission Equipment &System Security and New Technology, College of Chemistry and Chemical Engineering, Chongqing University, 400044, P. R. China.
authors.forename: Xueqiang
authors.initials: X
authors.lastname: Qi
authors.affiliation: Soft Matter and Interdisciplinary Research Center, College of Physics, Chongqing University, Chongqing, 400044, P. R. China.
authors.forename: Shuxia
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
authors.forename: Weijia
authors.initials: W
authors.lastname: Wen