Atomic-Scale View of Water Chemistry on Nanostructured Iron Oxide Films

被引：1

作者：

Yang, Jijin ^{[1
]}

Ascrizzi, Eleonora ^{[2
]}

Cattelan, Mattia ^{[1
,3
,4
]}

Nalesso, Marco ^{[1
]}

Cielo, Leonardo ^{[1
]}

Matvija, Peter ^{[5
]}

Sedona, Francesco ^{[1
]}

Ferrari, Anna Maria ^{[2
]}

Agnoli, Stefano ^{[1
,3
,4
]}

机构：

[1] Padova Univ, Dept Chem Sci, I-35131 Padua, Italy

[2] Univ Torino, Dept Chem, I-10125 Turin, Italy

[3] INSTM Ist Nazl Sci & Tecnol Mat, Padova Res Unit, I-50121 Florence, Italy

[4] CIRCC Consorzio Interuniv Reattivita` Chim & Catal, Padova Res Unit, I-70126 Bari, Italy

[5] Charles Univ Prague, Fac Math & Phys, Dept Surface & Plasma Sci, CZ-18000 Prague 8, Czech Republic

来源：

NANO LETTERS | 2024年 / 24卷 / 40期

关键词：

iron oxides; water chemistry; scanning tunnelingmicroscopy; DFT calculations; SCANNING-TUNNELING-MICROSCOPY; CO OXIDATION; GROWTH; NANOPARTICLES; DISSOCIATION; NUCLEATION; INTERFACE; GRAPHENE; ISLANDS; METALS;

D O I：

10.1021/acs.nanolett.4c03521

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interaction of water with solid surfaces is crucial for a wide range of disciplines, including catalysis, environmental science, corrosion, geology, and biology. In this study, we present a combined experimental and theoretical investigation that elucidates the interaction of water with a model iron oxide surface under near ambient conditions (i.e., room temperature and water vapor in the mbar range). Our findings reveal that surface hydroxylation can be controlled at the nanoscale by the local properties of the oxide film, such as local rumpling and electrostatic potential. The iron oxide surface presents alternating hydrophilic and hydrophobic domains, creating after water exposure a hexagonal pattern with a pitch of approximately 3 nm, where the highly hydroxylated regions act as nucleation centers for nanoconfined water molecule clusters.

引用

页码：12552 / 12559

页数：8

共 43 条

[1] Water dissociation on MnO(1 x 1)/Ag(100) [J].