Pt-Ni Nanoparticle-Stacking Thin Film: Highly Active Electrocatalysts for Oxygen Reduction Reaction

Naoto Todoroki; Takashi Kato; Takehiro Hayashi; Shuntaro Takahashi; Toshimasa Wadayama

doi:10.1021/acscatal.5b00065

Pt-Ni Nanoparticle-Stacking Thin Film: Highly Active Electrocatalysts for Oxygen Reduction Reaction

Naoto Todoroki, Takashi Kato, Takehiro Hayashi, Shuntaro Takahashi, Toshimasa Wadayama

ENV - Frontier Science for Advanced Environment

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

A novel nanoparticle-stacking thin film (NPSTF) of Pt-Ni alloy for highly active oxygen reduction reaction (ORR) electrocatalyst was synthesized. The Pt mass activity of the synthesized Pt-Ni NPSTF were 10-fold higher than commercial carbon-supported Pt catalysts. The remarkable ORR activity enhancement of the Pt-Ni NPSTF was attributed to the modified electronic properties of the surface Pt-enriched layers induced by underlying Ni atoms and to the increased active surface area achieved by stacking of Pt-Ni nanoparticles. (Chemical Equation Presented).

Original language	English
Pages (from-to)	2209-2212
Number of pages	4
Journal	ACS Catalysis
Volume	5
Issue number	4
DOIs	https://doi.org/10.1021/acscatal.5b00065
Publication status	Published - 2015 Apr 3

Keywords

Pt-based alloys
arc plasma deposition
oxygen reduction reaction
proton exchange membrane fuel cell
thin film catalysts

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1021/acscatal.5b00065

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title = "Pt-Ni Nanoparticle-Stacking Thin Film: Highly Active Electrocatalysts for Oxygen Reduction Reaction",

abstract = "A novel nanoparticle-stacking thin film (NPSTF) of Pt-Ni alloy for highly active oxygen reduction reaction (ORR) electrocatalyst was synthesized. The Pt mass activity of the synthesized Pt-Ni NPSTF were 10-fold higher than commercial carbon-supported Pt catalysts. The remarkable ORR activity enhancement of the Pt-Ni NPSTF was attributed to the modified electronic properties of the surface Pt-enriched layers induced by underlying Ni atoms and to the increased active surface area achieved by stacking of Pt-Ni nanoparticles. (Chemical Equation Presented).",

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author = "Naoto Todoroki and Takashi Kato and Takehiro Hayashi and Shuntaro Takahashi and Toshimasa Wadayama",

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T2 - Highly Active Electrocatalysts for Oxygen Reduction Reaction

AU - Todoroki, Naoto

AU - Kato, Takashi

AU - Hayashi, Takehiro

AU - Takahashi, Shuntaro

AU - Wadayama, Toshimasa

PY - 2015/4/3

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N2 - A novel nanoparticle-stacking thin film (NPSTF) of Pt-Ni alloy for highly active oxygen reduction reaction (ORR) electrocatalyst was synthesized. The Pt mass activity of the synthesized Pt-Ni NPSTF were 10-fold higher than commercial carbon-supported Pt catalysts. The remarkable ORR activity enhancement of the Pt-Ni NPSTF was attributed to the modified electronic properties of the surface Pt-enriched layers induced by underlying Ni atoms and to the increased active surface area achieved by stacking of Pt-Ni nanoparticles. (Chemical Equation Presented).

AB - A novel nanoparticle-stacking thin film (NPSTF) of Pt-Ni alloy for highly active oxygen reduction reaction (ORR) electrocatalyst was synthesized. The Pt mass activity of the synthesized Pt-Ni NPSTF were 10-fold higher than commercial carbon-supported Pt catalysts. The remarkable ORR activity enhancement of the Pt-Ni NPSTF was attributed to the modified electronic properties of the surface Pt-enriched layers induced by underlying Ni atoms and to the increased active surface area achieved by stacking of Pt-Ni nanoparticles. (Chemical Equation Presented).

KW - Pt-based alloys

KW - arc plasma deposition

KW - oxygen reduction reaction

KW - proton exchange membrane fuel cell

KW - thin film catalysts

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