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Title: Atomistic mechanisms of water vapor–induced surface passivation

Journal Article · · Science Advances

The microscopic mechanisms underpinning the spontaneous surface passivation of metals from ubiquitous water have remained largely elusive. Here, using in situ environmental electron microscopy to atomically monitor the reaction dynamics between aluminum surfaces and water vapor, we provide direct experimental evidence that the surface passivation results in a bilayer oxide film consisting of a crystalline-like Al(OH)3 top layer and an inner layer of amorphous Al2O3. The Al(OH)3 layer maintains a constant thickness of ~5.0 Å, while the inner Al2O3 layer grows at the Al2O3/Al interface to a limiting thickness. On the basis of experimental data and atomistic modeling, we show the tunability of the dissociation pathways of H2O molecules with the Al, Al2O3, and Al(OH)3 surface terminations. The fundamental insights may have practical significance for the design of materials and reactions for two seemingly disparate but fundamentally related disciplines of surface passivation and catalytic H2 production from water.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); National Science Foundation (NSF)
Grant/Contract Number:
SC0012704; SC0001135
OSTI ID:
2267563
Report Number(s):
BNL--225123-2023-JAAM
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 44 Vol. 9; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Tuning the Limiting Thickness of a Thin Oxide Layer on Al(111) with Oxygen Gas Pressure journal July 2011
X-ray Photoelectron Spectroscopy Study of the Passivation of NiAl(100) by Water Vapor journal January 2014
A review on hydrogen production using aluminum and aluminum alloys journal May 2009
Aluminum nanotubes as an efficient catalyst for hydrogen production via thermochemical water splitting: a reactive molecular dynamics simulation journal January 2023
Ab initio molecular-dynamics simulation of the liquid-metal–amorphous-semiconductor transition in germanium journal May 1994
Materials for fuel-cell technologies journal November 2001
Atomistic modelling of gibbsite: surface structure and morphology journal January 2000
Molecular dynamics simulation on the reaction of nano-aluminum with water: size and passivation effects journal January 2019
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Oxidation Protection with Amorphous Surface Oxides: Thermodynamic Insights from Ab Initio Simulations on Aluminum journal January 2018
Popcorn-like aluminum-based powders for instant low-temperature water vapor hydrogen generation journal March 2021
Atomistic mechanisms of the initial oxidation of stepped Cu3Au(100) journal February 2022
Reactivity of the Gold/Water Interface During Selective Oxidation Catalysis journal September 2010
Ab initio Force Constant Approach to Phonon Dispersion Relations of Diamond and Graphite journal December 1995
Intrinsic stress evolution during amorphous oxide film growth on Al surfaces journal March 2014
Passivation mechanisms and pre-oxidation effects on model surfaces of FeCrNi austenitic stainless steel journal May 2020
Molecular dynamics with coupling to an external bath journal October 1984
Atomic-Scale Insights into the Oxidation of Aluminum journal January 2018
Molecular dynamic simulation of aluminum–water reactions using the ReaxFF reactive force field journal May 2011
Predictions of melting, crystallization, and local atomic arrangements of aluminum clusters using a reactive force field journal December 2008
Structure and morphology of aluminium-oxide films formed by thermal oxidation of aluminium journal October 2002
Adhesion and nonwetting-wetting transition in the Al / α − Al 2 O 3 interface journal January 2004
Characterisation of oxide and hydroxide layers on technical aluminum materials using XPS journal March 2012
Effect of H2O chemisorption on passivation of Ge(100) surface studied by scanning tunneling microscopy journal August 2011
Atomic insights into the combustion behavior of Al nano-droplets with H2O vapor at high temperature journal June 2022
Review of Developments in Portable Hydrogen Production Using Microreactor Technology journal October 2004
Liquid-Like, Self-Healing Aluminum Oxide during Deformation at Room Temperature journal February 2018
Study of hydrogen production and storage based on aluminum–water reaction journal April 2014
Active aluminum composites and their hydrogen generation via hydrolysis reaction: A review journal January 2022
Self-healing catalysis in water journal September 2017
Oxygen chemisorption-induced surface phase transitions on Cu(110) journal September 2014
Real-space imaging of interfacial water with submolecular resolution journal January 2014
Structure of the Ultrathin Aluminum Oxide Film on NiAl(110) journal June 2005
Adsorption and dissociation of H2O on Al(1 1 1) surface by density functional theory calculation journal January 2015
Theory of the oxidation of metals journal January 1949
Hydrogen bonds and local symmetry in the crystal structure of gibbsite journal September 2010
How Does Water Wet a Surface? journal September 2015
Ab initiomolecular dynamics for liquid metals journal January 1993
Hydroxylation of Ultrathin Al 2 O 3 /NiAl(110) Films at Environmental Humidity journal August 2014
Thermodynamic stability of amorphous oxide films on metals: Application to aluminum oxide films on aluminum substrates journal August 2000
Temperature and pressure dependent Mott potentials and their influence on self-limiting oxide film growth journal October 2012
Comparative Study of the Oxidation of NiAl(100) by Molecular Oxygen and Water Vapor Using Ambient-Pressure X-ray Photoelectron Spectroscopy journal October 2016
Effects of Minor Alloying Elements on Alumina Transformation During the Transient Oxidation of β-NiAl journal April 2021
Oxidation Behavior of InAlN during Rapid Thermal Annealing journal August 2021
Suppression of interdiffusion-induced voiding in oxidation of copper nanowires with twin-modified surface journal January 2018
Structural and Electronic Properties of Bulk Gibbsite and Gibbsite Surfaces journal May 2005
Corrosion aspects of Ni–Cr–Fe based and Ni–Cu based steam generator tube materials journal September 2009
The thermodynamic stability of amorphous oxide overgrowths on metals journal February 2008
The adsorption and thermal decomposition of water on clean and oxygen-predosed Al(111) journal May 1987
A DFT study of the adsorption of O 2 and H 2 O on Al(111) surfaces journal January 2016
Structure of Amorphous Aluminum Oxide journal August 2009
Parametrization of a reactive force field for aluminum hydride journal July 2009
Passive Oxide Film Growth Observed On the Atomic Scale journal February 2022
Comparative Study of the Passivation of Al(111) by Molecular Oxygen and Water Vapor journal December 2012
Defect-driven selective metal oxidation at atomic scale journal January 2021
Effect of Water Vapor on Oxidation Processes of the Cu(111) Surface and Sublayer journal January 2023