Ambient Synthesis of Pt-Reactive Metal Alloy and High-Entropy Alloy Nanocatalysts Utilizing Hydrogen Cold Plasma

• DOI: 10.1021/acs.chemmater.1c03389
• Publication Date: 2021-12-29T15:32:06Z
• Authors: Dezhen Wu; Libo Yao; Michael Ricci; Jialu Li; Rongxuan Xie; Zhenmeng Peng
• Keywords: Nanomaterial-based catalyst; Nanomaterials

Synthesis of platinum-reactive metal alloy (Pt-RMA) and its high-entropy (Pt-HEA) nanoparticles is challenging due to the huge difference in reduction potentials between Pt reactive precursors oxyphilic nature metals. Herein, we utilize hydrogen cold plasma synthesize a variety Pt-RMA (Pt–Cr, Pt–Ta, Pt–V, Pt–Fe, Pt–Al) Pt-HEA (Pt–Cr–Ta–V–Fe–Al) under ambient conditions. Effectiveness method attributed generation anions plasma, possessing extremely strong reducing ability with −2.3 V standard potential that can simultaneously reduce precursors. The synthesized are characterized for confirming formation studied catalytic properties methanol oxidation reaction, improved activity durability compared commercial Pt. This study provides an effective, universal nanoparticles, which offers new platform studying this group nanomaterials.