Spectroscopic analysis of ultra-thin TiN as a diffusion barrier for lithium-ion batteries by ToF-SIMS, XPS, and EELS

Kia, Alireza M.; Speulmanns, Jan; Bönhardt, Sascha; Emara, Jennifer; Kühnel, Kati; Haufe, Nora; Weinreich, Wenke

doi:10.1016/j.apsusc.2021.150457

Cited by 18 publications

(9 citation statements)

References 52 publications

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“…In these spectra, the N 1s peak at 395.9 eV was assigned to N 3– species (Figure S3). , Nitrogen concentration on the surface of BaTiO 2.01 N 0.34 calculated by relative sensitivity factors was 6.4 mol %, which was close to the theoretical values of 7.8 mol % on the basis of the chemical composition (Table S1). Interestingly, the proportion of Ti 3+ in the oxynitride was found to be slightly lower than that in the oxyhydride.…”

supporting

confidence: 84%

BaTiO_3–xN_y: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions

Miyazaki,

Saito,

Ogasawara

et al. 2023

J. Am. Chem. Soc.

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supporting

confidence: 84%

BaTiO_3–xN_y: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions

Miyazaki,

Saito,

Ogasawara

et al. 2023

J. Am. Chem. Soc.

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“…[ 30 ] Conversely, in TiO 2 /CTF‐15, the bonding peak of metal Ti emerged at 401.4 eV, which may derive from the TiON bonding formed by metal oxide clusters. [ 31 ] Intriguingly, pyridine N tends to shift to higher binding energies with the loading of metal elements, which suggests the important contribution of pyridine N in Ti coordination processes. In the Ti 2p spectrum (Figure S5, Supporting Information), Ti 1 N 3 /CTF‐5 and Ti 1 N 3 /CTF‐10 exhibit distinct shifts toward lower binding energies compared to TiO 2 /CTF‐15, which supports the electron transfer trend from π units to Ti centers after metal coordination with CTF.…”

Section: Resultsmentioning

confidence: 99%

Unveiling Spin State‐Dependent Micropollutant Removal using Single‐Atom Covalent Triazine Framework

Zhu

Fang

et al. 2023

Adv Funct Materials

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Single‐atom materials, with unique electronic structure and maximized atom utilization, have shown huge application potential in the remediation of emerging organic pollutants (EOPs), but revealing intrinsic reaction mechanisms at spin state level remains a formidable challenge. Herein, a single‐atom Ti‐loaded covalent organic framework (Ti1/CTF) is constructed for two‐stage process that involved adsorption and photocatalytic synergy, and the essential role of the electronic spin state in regulating the intrinsic activity of the material is evidenced. Spin‐polarized Ti1N3/CTF‐10 considerably enhances the adsorption capacity (453.285 µmol g−1) and degradation kinetics (2.263 h−1, 17.0‐fold faster than CTF‐0) for 2,2,4,4'‐tetrehydroxybenzophenone (BP‐2) and provides long‐term stability (93.3% BP‐2 removal in seven cycles) and favorable cost‐effectiveness (4.45 kWh∙m−3 electrical energy per order) in natural water applications. Theoretical calculations and experimental results suggest that the Ti1N3 moieties of single‐atom Ti bonded to pyridine and triazine N induce electron spin‐down polarization near the Fermi energy level of the active site, providing a strong dipole force and motive power for electron transfer. This study provides new insights into the adsorption, activation, and photodegradation of EOPs at the material interface from the electronic spin level and demonstrates promising solutions for water micropollution control.

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“…Here, ToF‐SIMS and STEM deliver the advantage for combining spectroscopy and spectrometry on the scales of microns with real‐space imaging at the atomic‐scale. [ 349 ] ToF‐SIMS suffers from the matrix effect, which only allows for qualitative and semi‐quantitative studies without complex calibration routines; XPS does not suffer from this effect, and thus can obtain complimentary quantitative data for the ToF‐SIMS study.…”

Section: Integration Across Methodsmentioning

confidence: 99%

Multiscale Investigation of Sodium‐Ion Battery Anodes: Analytical Techniques and Applications

Schäfer,

Hankins,

Allion

et al. 2024

Advanced Energy Materials

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The anode/electrolyte interface behavior, and by extension, the overall cell performance of sodium‐ion batteries is determined by a complex interaction of processes that occur at all components of the electrochemical cell across a wide range of size‐ and timescales. Single‐scale studies may provide incomplete insights, as they cannot capture the full picture of this complex and intertwined behavior. Broad, multiscale studies are essential to elucidate these processes. Within this perspectives article, several analytical and theoretical techniques are introduced, and described how they can be combined to provide a more complete and comprehensive understanding of sodium‐ion battery (SIB) performance throughout its lifetime, with a special focus on the interfaces of hard carbon anodes. These methods target various length‐ and time scales, ranging from micro to nano, from cell level to atomistic structures, and account for a broad spectrum of physical and (electro)chemical characteristics. Specifically, how mass spectrometric, microscopic, spectroscopic, electrochemical, thermodynamic, and physical methods can be employed to obtain the various types of information required to understand battery behavior will be explored. Ways are then discussed how these methods can be coupled together in order to elucidate the multiscale phenomena at the anode interface and develop a holistic understanding of their relationship to overall sodium‐ion battery function.

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Spectroscopic analysis of ultra-thin TiN as a diffusion barrier for lithium-ion batteries by ToF-SIMS, XPS, and EELS

Cited by 18 publications

References 52 publications

BaTiO_3–xN_y: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions

BaTiO_3–xN_y: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions

Unveiling Spin State‐Dependent Micropollutant Removal using Single‐Atom Covalent Triazine Framework

Multiscale Investigation of Sodium‐Ion Battery Anodes: Analytical Techniques and Applications

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Spectroscopic analysis of ultra-thin TiN as a diffusion barrier for lithium-ion batteries by ToF-SIMS, XPS, and EELS

Cited by 18 publications

References 52 publications

BaTiO3–xNy: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions

BaTiO3–xNy: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions

Unveiling Spin State‐Dependent Micropollutant Removal using Single‐Atom Covalent Triazine Framework

Multiscale Investigation of Sodium‐Ion Battery Anodes: Analytical Techniques and Applications

Contact Info

Product

Resources

About

BaTiO_3–xN_y: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions

BaTiO_3–xN_y: Highly Basic Oxide Catalyst Exhibiting Coupling of Electrons at Oxygen Vacancies with Substituted Nitride Ions