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Hydrogen spillover-driven synthesis of high-entropy alloy nanoparticles as a robust catalyst for CO₂ hydrogenation

Chemistry

Hydrogen spillover-driven synthesis of high-entropy alloy nanoparticles as a robust catalyst for CO₂ hydrogenation

K. Mori, N. Hashimoto, et al.

This groundbreaking research by Kohsuke Mori and team unveils the low-temperature synthesis of CoNiCuRuPd high-entropy alloy nanoparticles on titanium dioxide. With remarkable activity and durability in CO₂ hydrogenation, the study offers exciting insights into the catalytic potential of these alloy nanoparticles, driven by unique synergistic effects.

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Playback language: English
Abstract
This paper demonstrates a low-temperature synthesis of supported CoNiCuRuPd high-entropy alloy (HEA) nanoparticles (NPs) on titanium dioxide (TiO₂) at 400 °C, driven by the hydrogen spillover effect and coupled proton/electron transfer. The resulting CoNiCuRuPd HEA NPs on TiO₂ showed high activity and durability during CO₂ hydrogenation. In situ techniques and theoretical calculations revealed a cocktail effect and sluggish diffusion due to synergistic effects of the element combination.
Publisher
Nature Communications
Published On
Jun 23, 2021
Authors
Kohsuke Mori, Naoki Hashimoto, Naoto Kamiuchi, Hideto Yoshida, Hisayoshi Kobayashi, Hiromi Yamashita
Tags
high-entropy alloy
co-catalysts
low-temperature synthesis
catalytic activity
hydrogenation
synergistic effects
nanoparticles

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