Tuning Electrocatalytic Activities of Dealloyed Nanoporous Catalysts by Macroscopic Strain Engineering

Li，Qite1,2; Kudo，Akira2; Ma，Jinling2; Kawashima，Ryotaro3; Toyama，Kota4; Xu，Wence1; Gao，Zhonghui1; Liang，Yanqin1; Jiang，Hui1; Li，Zhaoyang1; Cui，Zhenduo1; Zhu，Shengli1; Chen，Mingwei2,5,6

2024-05-08

10.1021/acs.nanolett.4c00781

Nano Letters   影响因子和分区

1530-6984

1530-6992

It is technically challenging to quantitatively apply strains to tune catalysis because most heterogeneous catalysts are nanoparticles, and lattice strains can only be applied indirectly via core-shell structures or crystal defects. Herein, we report quantitative relations between macroscopic strains and hydrogen evolution reaction (HER) activities of dealloyed nanoporous gold (NPG) by directly applying macroscopic strains upon bulk NPG. It was found that macroscopic compressive strains lead to a decrease, while macroscopic tensile strains improve the HER activity of NPG, which is in line with the d-band center model. The overpotential and onset potential of HER display approximately a linear relation with applied macroscopic strains, revealing an ∼2.9 meV decrease of the binding energy per 0.1% lattice strains from compressive to tensile. The methodology with the high strain sensitivity of electrocatalysis, developed in this study, paves a new way to investigate the insights of strain-dependent electrocatalysis with high precision.

d-band center model electrocatalysis hydrogen evolution reaction nanoporous gold Strain engineering

SCI ; EI

英语

其他

MATERIALS SCIENCE

2-s2.0-85191966545

Scopus

1.School of Materials Science and Engineering,Tianjin University,Tianjin,300350,China
2.WPI Advanced Institute for Materials Research (WPI-AIMR),Tohoku University,Sendai,980-8577,Japan
3.Department of Mechanical and Aerospace Engineering,Tohoku University,Sendai,980-8577,Japan
4.Department of Electrical and Computer Engineering,Tohoku University,Sendai,980-8577,Japan
5.Department of Materials Science and Engineering,Johns Hopkins University,Baltimore,21218,United States
6.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Li，Qite,Kudo，Akira,Ma，Jinling,et al. Tuning Electrocatalytic Activities of Dealloyed Nanoporous Catalysts by Macroscopic Strain Engineering[J]. Nano Letters,2024,24(18):5543-5549.

Li，Qite.,Kudo，Akira.,Ma，Jinling.,Kawashima，Ryotaro.,Toyama，Kota.,...&Chen，Mingwei.(2024).Tuning Electrocatalytic Activities of Dealloyed Nanoporous Catalysts by Macroscopic Strain Engineering.Nano Letters,24(18),5543-5549.

Li，Qite,et al."Tuning Electrocatalytic Activities of Dealloyed Nanoporous Catalysts by Macroscopic Strain Engineering".Nano Letters 24.18(2024):5543-5549.