title: Composition tunable ternary Pt-Ni-Co octahedra for optimized oxygen reduction activity.
abstract: Herein, we report a one-step synthesis method for octahedral Pt-Ni-Co ternary catalysts with tunable compositions and fixed shapes. Impressively, the composition optimized octahedral PtNi0.55Co0.1/C demonstrated a significant improvement in ORR activity compared to those of previously reported Pt-Ni-Co alloy octahedra, showing an outstanding specific activity of 5.05 mA cm-2and a mass activity of 2.80 mA μgPt-1, which are around 20.2 times and 14.7 times higher than those of the commercial Pt/C catalyst (0.25 mA cm-2and 0.19 mA μgPt-1).
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA. yhuang@seas.ucla.edu.
authors.forename: Zipeng
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA. yhuang@seas.ucla.edu and College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350116, China.
authors.forename: Miao
authors.identifier: http://orcid.org/0000-0003-4378-803X
authors.initials: M
authors.lastname: Feng
authors.affiliation: Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA.
authors.forename: Jihan
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA. yhuang@seas.ucla.edu.
authors.forename: Zeyan
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA.
authors.forename: Mufan
authors.initials: M
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA. yhuang@seas.ucla.edu.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Fan
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA. yhuang@seas.ucla.edu.
authors.forename: Oshton
authors.initials: O
authors.lastname: Tsen
authors.affiliation: Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA and California Nanosystems Institute, University of California, Los Angeles, California 90095, USA.
authors.forename: Jianwei
authors.initials: J
authors.lastname: Miao
authors.affiliation: California Nanosystems Institute, University of California, Los Angeles, California 90095, USA and Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA.
authors.forename: Xiangfeng
authors.initials: X
authors.lastname: Duan
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, California 90095, USA. yhuang@seas.ucla.edu and California Nanosystems Institute, University of California, Los Angeles, California 90095, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Huang