Charge trapping in TiO2 polymorphs as seen by Electron Paramagnetic Resonance spectroscopy

Literature Information

Publication Date 2013-04-24
DOI 10.1039/C3CP50658D
Impact Factor 3.676
Authors

Mario Chiesa, Maria Cristina Paganini, Stefano Livraghi, Elio Giamello


View Original

Abstract

Electron Paramagnetic Resonance (EPR) techniques have been employed to investigate charge carrier trapping in the two main TiO2 polymorphs, anatase and rutile, with particular attention to the features of electron trapping sites (formally Ti3+ ions). The classic CW-EPR technique in this case provides signals based on the g tensor only. Nevertheless a systematic analysis of the signals obtained in the various cases (anatase and rutile, surface and bulk centers, regular and defective sites) has been performed providing useful guidelines on a field affected by some confusion. The problem of the localization of the electron spin density has been tackled by means of Pulse-EPR hyperfine techniques on samples appositely enriched with 17O. This approach has led to evidence of a substantial difference, in terms of wavefunction localization between anatase (electrons trapped in regular lattice sites exhibiting delocalized electron density) and rutile (interstitial sites showing localized electron density).

Related Literature

Conversion mechanism of enoyl thioesters into acyl thioesters catalyzed by 2-enoyl-thioester reductases from Candida Tropicalis

Hong Li, Lijuan Yan, Rutao Liu, Yongjun Liu

2019-04-25 Paper

DOI: 10.1039/C9CP00987F

tert-Butyl peroxy radical: ground and first excited state energetics and fundamental frequencies

Peter R. Franke, Gary E. Douberly

2019-04-23 Paper

DOI: 10.1039/C9CP01476D

Imaging inelastic scattering of CO with argon: polarization dependent differential cross sections

Zhong-Fa Sun, Chandan K. Bishwakarma, Lei Song, Ad van der Avoird, Marc C. van Hemert, Arthur G. Suits, George C. McBane, David H. Parker

2019-04-05 Paper

DOI: 10.1039/C9CP00876D

Absorption shifts of diastereotopically ligated chlorophyll dimers of photosystem I

Carl-Mikael Suomivuori, Heike Fliegl, Evgeni B. Starikov, T. Silviu Balaban, Ville R. I. Kaila

2019-03-11 Paper

DOI: 10.1039/C9CP00616H

Structural analysis of helicene molecules adsorbed on symmetric surfaces

Emilian Tuca, Irina Paci

2019-03-27 Paper

DOI: 10.1039/C9CP00284G

Blind spheres of paramagnetic dopants in solid state NMR

Wenyu Li, Qianyun Zhang, Jonas J. Joos, Philippe F. Smet, Jörn Schmedt auf der Günne

2019-04-29 Paper

DOI: 10.1039/C9CP00953A

Structural and magnetic studies of KOsO4, a 5d1 quantum magnet oxide

Sean Injac, Alexander K. L. Yuen, Fabio Orlandi, Brendan J. Kennedy

2019-03-12 Communication

DOI: 10.1039/C9CP00448C

Tailoring the interparticle distance in Langmuir nanoparticle films

Monika Benkovičová, Ana Hološ, Peter Nádaždy, Yuriy Halahovets, Mário Kotlár, Jozef Kollár, Matej Jergel, Jaroslav Mosnáček, Ján Ivančo

2019-04-15 Paper

DOI: 10.1039/C9CP02064K

You might also like

Compound Q&A

How is Ethyl 4-chlorothieno[2,3-b]pyridine-5-carboxylate (CAS: 59713-58-5) typically synthesized?

Ethyl 4-chlorothieno[2,3-b]pyridine-5-carboxylate (CAS: 59713-58-5) can be synth...

59713-58-5Ethyl 4-chlorothieno...
Compound Q&A

What regulatory guidelines apply to 5-Methyl-1H-indole-3-carbaldehyde (CAS: 52562-50-2)?

5-Methyl-1H-indole-3-carbaldehyde (CAS: 52562-50-2) is subject to various regula...

52562-50-25-Methyl-1H-indole-3...
Compound Q&A

What are the physical and chemical properties of (1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)boronic acid (CAS: 223418-73-3)?

(1,3-Dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)boronic acid is a white...

223418-73-3(1,3-Dimethyl-2,4-di...
Compound Q&A

How should waste containing Sulfocostunolide A (CAS: 1016983-51-9) be handled?

Waste containing Sulfocostunolide A (CAS: 1016983-51-9) should be handled with c...

1016983-51-9Sulfocostunolide A
Compound Q&A

What precautions should be taken when handling Murraxocin (CAS: 88478-44-8)?

When handling Murraxocin (CAS: 88478-44-8), ensure proper personal protective eq...

88478-44-8Murraxocin
Compound Q&A

What are the physical and chemical properties of Formvar (CAS: 63148-64-1)?

Formvar (CAS: 63148-64-1) is an alkyd resin characterized by a high molecular we...

63148-64-1Formvar(R)
Compound Q&A

Is (S)-4-benzyl-2-((benzyloxy)methyl)morpholine (CAS: 205242-66-6) safe?

(S)-4-benzyl-2-((benzyloxy)methyl)morpholine is generally safe when handled with...

205242-66-6(S)-4-benzyl-2-((ben...
Compound Q&A

What industries use Methyl 1-(5-bromo-2-pyrimidinyl)cyclopropanecarboxylate (CAS: 1447607-69-3)?

Methyl 1-(5-bromo-2-pyrimidinyl)cyclopropanecarboxylate (CAS: 1447607-69-3) is p...

1447607-69-3Methyl 1-(5-bromo-2-...
Compound Q&A

Is 2-Methyl-1-phenyl-1-propanamine hydrochloride (CAS: 24290-47-9) safe?

2-Methyl-1-phenyl-1-propanamine hydrochloride (CAS: 24290-47-9) is generally con...

24290-47-92-Methyl-1-phenyl-1-...
Compound Q&A

How is 3-(4-Bromophenyl)-2-methylpropanoic acid (CAS: 66735-01-1) typically synthesized?

3-(4-Bromophenyl)-2-methylpropanoic acid is synthesized through a multi-step pro...

66735-01-13-(4-Bromophenyl)-2-...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.