4.8 Article

Switching Lead for Tin in PbHfO3: Noncubic Structure of SnHfO3

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Dynamic tilting in perovskites

Christopher M. Handley et al.

Summary: This study presents a new computational analysis of tilt behavior in perovskites, including the development of a computational program called PALAMEDES, which extracts tilt angles and tilt phase from molecular dynamics simulations. The results are used to generate simulated diffraction patterns and compared with experimental patterns for CaTiO3. The simulations not only reproduced all symmetrically allowed superlattice reflections associated with tilt but also showed local correlations that give rise to symmetrically forbidden reflections and the kinematic origin of diffuse scattering.

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES (2023)

Article Chemistry, Inorganic & Nuclear

Structure, Stability, and Photocatalytic Activity of a Layered Perovskite Niobate after Flux-Mediated Sn(II) Exchange

Shaun O'Donnell et al.

Summary: A new strategy has been developed to incorporate Sn(II) cations into the structure of a photocatalytic oxide, Ba5Nb4O15, by leveraging the asymmetric coordination environments. This strategy enables the reduction of the band gap and the enhancement of photocatalytic activity under visible light by introducing Sn(II) cations. The study demonstrates the powerful utility of low-temperature Sn(II)-exchange reactions to sensitize layer-type oxide photocatalysts to the visible region of the solar spectrum.

INORGANIC CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

Renaissance of Topotactic Ion-Exchange for Functional Solids with Close Packed Structures

Eric Gabilondo et al.

Summary: Recent discoveries of new, complex, functional oxides have been made using topotactic ion-exchange reactions on close-packed structures. Despite a lack of apparent cation-diffusion pathways, low-temperature transformations are possible by interdiffusion and exchange of functional cations, resulting in new modulations of electronic, magnetic, or catalytic properties while maintaining the three-dimensional connectivity.

CHEMISTRY-A EUROPEAN JOURNAL (2022)

Article Chemistry, Physical

Prediction and Kinetic Stabilization of Sn(II)-Perovskite Oxide Nanoshells

Shaun O'Donnell et al.

Summary: This study presents a method for synthesizing metastable Sn(Zr1/2Ti1/2)O-3 (SZT) dielectric through a low-temperature flux reaction. The results show that SZT nanoshells can grow and be stabilized on the surfaces of Ba(Zr1/2Ti1/2)O-3 (BZT) particles, forming BZT-SZT core-shell structures, through Sn(II) cation exchange. In situ powder X-ray diffraction and transmission electron microscopy data reveal that the SZT nanoshells are formed by controlled cation diffusion of Sn(II) cations into the BZT particles, with adjustable thicknesses.

CHEMISTRY OF MATERIALS (2022)

Article Chemistry, Multidisciplinary

Circumventing thermodynamics to synthesize highly metastable perovskites: nano eggshells of SnHfO3

Eric A. Gabilondo et al.

Summary: For the first time, Sn(ii)-based perovskite oxides were synthesized in the form of nano eggshell particles. A new approach using a low-melting salt was discovered to overcome the metastability of Sn(ii)-perovskite oxides. The resulting particles exhibited nanoshell-over-nanoshell morphologies and showed high purity. These findings have important implications for synthesizing metastable oxides.

NANOSCALE ADVANCES (2022)

Review Materials Science, Multidisciplinary

A review on molten salt synthesis of metal oxide nanomaterials: Status, opportunity, and challenge

Santosh K. Gupta et al.

Summary: The molten-salt synthesis (MSS) method is becoming an excellent bottom-up technique for synthesizing nanomaterials, offering advantages such as environmental friendliness, low cost, and ease of operation. This review article discusses the status, potential, and challenges of MSS for metal oxide nanomaterial synthesis, as well as the importance of synthesis on properties and applications of nanomaterials. It also covers different aspects of MSS, including the role of molten salt, choice of molten salt, synthesis parameters, oxosalts, and electrochemical aspects, while highlighting recent progress and successes in synthesizing various metal oxide nanomaterials.

PROGRESS IN MATERIALS SCIENCE (2021)

Article Chemistry, Inorganic & Nuclear

Synthesis and stability of Sn(II)-containing perovskites: (Ba,SnII)HfIVO3 versus (Ba,SnII)SnIVO3

Eric A. Gabilondo et al.

Summary: Investigations into the flux-mediated syntheses of metastable Sn(II)-containing hafnate and stannate perovskites aimed at understanding key factors related to their synthesizability. The research showed that reaching a Sn(II) concentration of up to 70% is possible, but it requires multiple reaction cycles to achieve a homogeneous distribution of ions.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

Article Chemistry, Physical

Interplay between Valence Band Tuning and Redox Stability in SnTiO3: Implications for Directed Design of Photocatalysts

Leo Diehl et al.

Summary: Directed design of new photocatalysts remains challenging; for example, SnTiO3 demonstrates wide valence band, low hole effective mass, and visible-light H-2 evolution activity, but surface oxidation hampers efficient extraction of photoexcited electrons. Extending ab initio calculations to various Sn(II) oxide semiconductors reveals a broad range of valence band maxima and competition between dispersion and stability against oxidation.

CHEMISTRY OF MATERIALS (2021)

Article Chemistry, Physical

On the possibility that PbZrO3 not be antiferroelectric

Hugo Aramberri et al.

Summary: The study suggests that lead zirconate may not be antiferroelectric at ambient conditions, but may exhibit partially polar behavior. First-principles calculations indicate that the ferrielectric structure of lead zirconate is more stable than the commonly accepted antiferroelectric phase at low temperatures, possibly up to room temperature.

NPJ COMPUTATIONAL MATERIALS (2021)

Review Chemistry, Multidisciplinary

Capturing Metastable Oxide Semiconductors for Applications in Solar Energy Conversion

Paul A. Maggard

Summary: Many small bandgap semiconductors with promising properties for solar energy conversion have been discovered as metastable solids, showing high photocatalytic activities and suitable semiconductor properties. Current research efforts are focused on unlocking the potential of these semiconductors through new advances in synthetic approaches and understanding of structure-property relationships.

ACCOUNTS OF CHEMICAL RESEARCH (2021)

Article Chemistry, Multidisciplinary

Incommensurate crystal structure of PbHfO3

Alexei Bosak et al.

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS (2020)

Article Chemistry, Inorganic & Nuclear

Topotactic Ion Exchange in a Three-Dimensional Close-Packed Trirutile Structure with an Octahedral Network

Vandana Meena et al.

INORGANIC CHEMISTRY (2019)

Article Chemistry, Multidisciplinary

Kinetically Stable Single Crystals of Perovskite-Phase CsPbI3

Daniel B. Straus et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Review Physics, Multidisciplinary

Tin titanate-the hunt for a new ferroelectric perovskite

J. Gardner et al.

REPORTS ON PROGRESS IN PHYSICS (2019)

Article Electrochemistry

Fast Flux Reaction Approach for the Preparation of Sn2TiO4: Tuning Particle Sizes and Photocatalytic Properties

Shaun O'Donnell et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2019)

Article Materials Science, Multidisciplinary

Triggered incommensurate transition in PbHfO3

Roman G. Burkovsky et al.

PHYSICAL REVIEW B (2019)

Article Multidisciplinary Sciences

Thermodynamic limit for synthesis of metastable inorganic materials

Muratahan Aykol et al.

SCIENCE ADVANCES (2018)

Review Materials Science, Multidisciplinary

Lead-free piezoelectricsThe environmental and regulatory issues

Andrew J. Bell et al.

MRS BULLETIN (2018)

Article Chemistry, Physical

Structure-Directing Lone Pairs: Synthesis and Structural Characterization of SnTiO3

Leo Diehl et al.

CHEMISTRY OF MATERIALS (2018)

Article Materials Science, Multidisciplinary

Structural design principles for low hole effective mass s-orbital-based p-type oxides

Viet-Anh Ha et al.

JOURNAL OF MATERIALS CHEMISTRY C (2017)

Article Chemistry, Inorganic & Nuclear

Structural and Thermal Properties of Ternary Narrow-Gap Oxide Semiconductor; Wurtzite-Derived β-CuGaO2

Hiraku Nagatani et al.

INORGANIC CHEMISTRY (2015)

Review Physics, Condensed Matter

Semiconducting transition metal oxides

Stephan Lany

JOURNAL OF PHYSICS-CONDENSED MATTER (2015)

Article Chemistry, Multidisciplinary

Thin film synthesis and properties of copper nitride, a metastable semiconductor

Christopher M. Caskey et al.

MATERIALS HORIZONS (2014)

Article Engineering, Electrical & Electronic

Structural, Electronic, and Lattice Dynamics of PbTiO3, SnTiO3, and SnZrO3: A Comparative First-Principles Study

M. F. M. Taib et al.

INTEGRATED FERROELECTRICS (2013)

Article Crystallography

Sequence of phase transitions in PbHfO3

M. F. Kupriyanov et al.

CRYSTALLOGRAPHY REPORTS (2012)

Article Chemistry, Multidisciplinary

Surface Oxidation of Tin Chalcogenide Nanocrystals Revealed by 119Sn-Mossbauer Spectroscopy

Antoine de Kergommeaux et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2012)

Review Chemistry, Multidisciplinary

Stereochemistry of post-transition metal oxides: revision of the classical lone pair model

Aron Walsh et al.

CHEMICAL SOCIETY REVIEWS (2011)

Article Chemistry, Physical

Study on the Defect Structure of SnO2:F Nanoparticles by High-Resolution Solid-State NMR

Yamini S. Avadhut et al.

CHEMISTRY OF MATERIALS (2011)

Article Chemistry, Physical

Density functional theory and the band gap problem

John P. Perdew

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY (2010)

Article Materials Science, Multidisciplinary

Preparation and crystal structure of a new tin titanate containing Sn2+; Sn2TiO4

Nobihiro Kumada et al.

MATERIALS RESEARCH BULLETIN (2009)

Article Chemistry, Physical

Photocatalytic Activities of Layered Titanates and Niobates Ion-Exchanged with Sn2+ under Visible Light Irradiation

Yasuhiro Hosogi et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2008)

Article Chemistry, Multidisciplinary

Electron diffraction of tilted perovskites

DI Woodward et al.

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE (2005)

Article Chemistry, Multidisciplinary

Topochemical synthesis of three-dimensional perovskites from lamellar precursors

RE Schaak et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2000)