渐失高贵：负载型金、镍和铂纳米颗粒的局域吸附特性

Less and Less Noble: Local Adsorption Properties of Supported Au, Ni, and Pt Nanoparticles.

作者信息

Gatin Andrey K, Sarvadii Sergey Y, Dokhlikova Nadezhda V, Ozerin Sergey A, Kharitonov Vasiliy A, Baimukhambetova Dinara, Grishin Maxim V

机构信息

N.N. Semenov Federal Research Center for Chemical Physics of Russian Academy of Sciences (FRCCP RAS), Kosygina Street 4, 119991 Moscow, Russia.

Moscow Institute of Physics and Technology, National Research University (MIPT), Institutskiy Pereulok 9, 141701 Dolgoprudny, Russia.

出版信息

Nanomaterials (Basel). 2023 Apr 14;13(8):1365. doi: 10.3390/nano13081365.

DOI:10.3390/nano13081365

PMID:37110950

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10142233/

Abstract

In this work, we studied the local adsorption properties of gold, nickel, and platinum nanoparticles. A correlation was established between the chemical properties of massive and nanosized particles of these metals. The formation of a stable adsorption complex M-A on the nanoparticles' surface was described. It was shown that the difference in local adsorption properties is caused by specific contributions of nanoparticle charging, the deformation of its atomic lattice near the M-C interface, and the hybridization of the surface s- and p-states. The contribution of each factor to the formation of the M-A chemical bond was described in terms of the Newns-Anderson chemisorption model.

摘要

在这项工作中，我们研究了金、镍和铂纳米颗粒的局部吸附特性。建立了这些金属的块状和纳米颗粒化学性质之间的相关性。描述了纳米颗粒表面稳定吸附络合物M-A的形成。结果表明，局部吸附特性的差异是由纳米颗粒带电的特定贡献、其在M-C界面附近的原子晶格变形以及表面s态和p态的杂化引起的。根据纽恩斯-安德森化学吸附模型描述了每个因素对M-A化学键形成的贡献。