Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?

The surface of solids often exerts a Pauli repulsion on the adsorbed atoms/ions (interstitial and/or substitutional), which markedly changes their properties. And the chemical activity of surface atom/ion increases by this way. In this paper, we focus on the activation of the surface interstitial hy...

Full description

Bibliographic Details
Main Authors: You Junhan, Liu Dangbo, Gao Haixiang
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Chemical Physics Impact
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2667022421000475
_version_ 1818236334455652352
author You Junhan
Liu Dangbo
Gao Haixiang
author_facet You Junhan
Liu Dangbo
Gao Haixiang
author_sort You Junhan
collection DOAJ
description The surface of solids often exerts a Pauli repulsion on the adsorbed atoms/ions (interstitial and/or substitutional), which markedly changes their properties. And the chemical activity of surface atom/ion increases by this way. In this paper, we focus on the activation of the surface interstitial hydrogen in the hydrogenation. We simply refer it ‘Pauli activation of interstitial H’ for short. We first demonstrate that the Pauli repulsion widely exists on the surface of various solids. Then we briefly introduce our past work published decades ago, which is related with the topics of Pauli activation, including the Schrodinger equation of interstitial/substitutional hydrogen and its solutions. Instead of a simple repeat of our previous work, more physical discussions on the properties of interstitial H are presented to help understanding the new catalysis mechanism more deeply. We find that, the electric dipole of interstitial H induced by Pauli repulsion plays a key role in the catalysis. We point the advantage of this catalytic mechanism. By the way, we give an alternative insight to a long ongoing question in the catalysis study. Experiments show that, the most active component in the hydrogenation is the ‘subsurface hydrogen’ under the surface of transition metals, rather than the ‘surface hydrogen’. We argue that, the ‘subsurface hydrogen’ is just the Pauli-activated interstitial H located under the coverage of the chemisorbed surface-hydrogen.
first_indexed 2024-12-12T12:08:13Z
format Article
id doaj.art-3978d4dd9a654f79b0c23ffd483f6b10
institution Directory Open Access Journal
issn 2667-0224
language English
last_indexed 2024-12-12T12:08:13Z
publishDate 2022-06-01
publisher Elsevier
record_format Article
series Chemical Physics Impact
spelling doaj.art-3978d4dd9a654f79b0c23ffd483f6b102022-12-22T00:24:57ZengElsevierChemical Physics Impact2667-02242022-06-014100058Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?You Junhan0Liu Dangbo1Gao Haixiang2Department of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240 Shanghai, ChinaDepartment of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240 Shanghai, China; Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, 800 Donchuan Road, 200240 Shanghai, China; Corresponding author at: Department of Astronomy, School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240 Shanghai, ChinaZhiyuan College, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240 Shanghai, ChinaThe surface of solids often exerts a Pauli repulsion on the adsorbed atoms/ions (interstitial and/or substitutional), which markedly changes their properties. And the chemical activity of surface atom/ion increases by this way. In this paper, we focus on the activation of the surface interstitial hydrogen in the hydrogenation. We simply refer it ‘Pauli activation of interstitial H’ for short. We first demonstrate that the Pauli repulsion widely exists on the surface of various solids. Then we briefly introduce our past work published decades ago, which is related with the topics of Pauli activation, including the Schrodinger equation of interstitial/substitutional hydrogen and its solutions. Instead of a simple repeat of our previous work, more physical discussions on the properties of interstitial H are presented to help understanding the new catalysis mechanism more deeply. We find that, the electric dipole of interstitial H induced by Pauli repulsion plays a key role in the catalysis. We point the advantage of this catalytic mechanism. By the way, we give an alternative insight to a long ongoing question in the catalysis study. Experiments show that, the most active component in the hydrogenation is the ‘subsurface hydrogen’ under the surface of transition metals, rather than the ‘surface hydrogen’. We argue that, the ‘subsurface hydrogen’ is just the Pauli-activated interstitial H located under the coverage of the chemisorbed surface-hydrogen.http://www.sciencedirect.com/science/article/pii/S2667022421000475Heterogeneous catalysisPauli repulsionPauli holeSurface/ subsurface hydrogenHydrogenation
spellingShingle You Junhan
Liu Dangbo
Gao Haixiang
Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?
Chemical Physics Impact
Heterogeneous catalysis
Pauli repulsion
Pauli hole
Surface/ subsurface hydrogen
Hydrogenation
title Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?
title_full Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?
title_fullStr Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?
title_full_unstemmed Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?
title_short Does the chemical activity of an interstitial hydrogen at surface of solids arise from Pauli repulsion?
title_sort does the chemical activity of an interstitial hydrogen at surface of solids arise from pauli repulsion
topic Heterogeneous catalysis
Pauli repulsion
Pauli hole
Surface/ subsurface hydrogen
Hydrogenation
url http://www.sciencedirect.com/science/article/pii/S2667022421000475
work_keys_str_mv AT youjunhan doesthechemicalactivityofaninterstitialhydrogenatsurfaceofsolidsarisefrompaulirepulsion
AT liudangbo doesthechemicalactivityofaninterstitialhydrogenatsurfaceofsolidsarisefrompaulirepulsion
AT gaohaixiang doesthechemicalactivityofaninterstitialhydrogenatsurfaceofsolidsarisefrompaulirepulsion