李有勇教授课题组及其合作者在Nano Letters上发表论文

题目：

Spin Regulation on 2D Pd−Fe−Pt Nanomeshes Promotes Fuel Electrooxidations

作者：

Xiaoling Luo,¹ Cheng Liu,² Xiaolei Wang,¹ Qi Shao,^1,* Yecan Pi,¹ Ting Zhu,¹ Youyong Li^2,* and Xiaoqing Huang^1,*

单位：

¹College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China.

²Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China.

摘要：

Spin engineering provides a powerful strategy for manipulating the interaction between electrons in the d orbital and oxygen-containing adsorbates, while a little endeavor was performed to understand whether such a strategy can make a prosperous enhancement for fuel electrooxidations. Herein, we demonstrate that spin engineering of trimetallic Pd−Fe−Pt nanomeshes (NM_s) can achieve superior enhancement for fuel electrooxidations. Magnetization characterizations reveal that Pd₅₉Fe₂₇Pt₁₄ NM_s own the highest number of polarized spins (μ_b= 0.85μB/f.u.), playing an important role on facilitating the adsorption of OH_ads to promote the oxidation of CO_ads, as confirmed by theoretical results. Consequently, the optimized Pd₅₉Fe₂₇Pt₁₄ NM_sexhibit excellent methanol oxidation reaction activity and stability with a mass activity of 1.61 A mg_pt^-1, 2.6-fold and 7.3-fold larger than those of PtRu/C and Pt/C. Such catalysts also present exceptional performances in ethanol oxidation and formic acid oxidation reactions. Our work highlights a new strategy for designing efficient electrocatalysts for fuel electrooxidations and beyond.

影响因子：

12.279

分区情况：

一区

链接：

https://doi.org/10.1021/acs.nanolett.9b05250

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