Key Lab for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China.
Chem Commun (Camb). 2023 May 25;59(43):6525-6528. doi: 10.1039/d3cc00859b.
A P-doped PtNi alloy loaded on N,C-doped TiO nanosheets (P-PtNi@N,C-TiO) exhibited excellent activity and durability for the oxygen reduction reaction (ORR) in 0.1 M HClO solution with mass (4×) and specific (6×) activity several times higher than those of commercial 20 wt% Pt/C, respectively. The P dopant mitigated the dissolution of Ni and strong interactions between the catalyst and the N,C-TiO support inhibited catalyst migration. This provides a new approach for the design of high-performance non-carbon-supported low-Pt catalysts to be used in harsh acidic environments.
负载在 N、C 掺杂 TiO 纳米片上的 P 掺杂 PtNi 合金（P-PtNi@N、C-TiO）在 0.1 M HClO 溶液中对氧还原反应（ORR）表现出优异的活性和耐久性，其质量（4×）和比活性（6×）分别是商业 20wt%Pt/C 的几倍。P 掺杂剂减轻了 Ni 的溶解，催化剂与 N、C-TiO 载体之间的强相互作用抑制了催化剂的迁移。这为设计用于苛刻酸性环境的高性能非碳负载低 Pt 催化剂提供了一种新方法。
