Energy Transfer between CNT Surface and -Re(CO)3(phen)+∗ Pendants Grafted to P4VP in Nanohybrid Shish-Kebob-like Structures

Iván Maisuls, Stefan Ostendorp, Gerhard Wilde, A. Jorge Parola, Cristian A. Strassert, Ezequiel Wolcan

Research output: Contribution to journalArticle

Abstract

The adsorption of a Re(CO)3(phen)-poly(4-vinylpyridine) polymer, RePVP, on multiwall carbon nanotubes surfaces is studied by transmission electron microscopy and absorption spectroscopy in combination with chemometric techniques in MeOH/H2O solvent mixture. Nanohybrid structures like a shish-kebab (NHSK) are observed by TEM when RePVP is wrapped around carbon nanotubes (CNTs) surfaces. The association between RePVP and CNTs studied by absorption spectroscopy suggests the coexistence of CNTs with a high or low content of adsorbed RePVP on their surface. In the absence of CNTs, the photophysical properties of RePVP (i.e., luminescence quantum yield, φL, and amplitude-weighted average lifetimes, «τ») are strongly dependent on the morphology of the polymer as witnessed by the dependence of φL on the concentration of RePVP (CRePVP) and the fact that in CH3CN φL and «τ»are sensitive to O2 while in a MeOH/H2O solvent mixture they are not. In the NHSK, an energy-transfer process between excited -[Re(CO)3(phen)]+∗ pendent chromophores and the CNTs surface, with static and dynamic components, is responsible for the quenching of the RePVP luminescence by CNTs.

Original languageEnglish
JournalJournal of Physical Chemistry C
DOIs
Publication statusAccepted/In press - 1 Jan 2020

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Carbon Nanotubes
Carbon Monoxide
Energy transfer
Carbon nanotubes
energy transfer
carbon nanotubes
Absorption spectroscopy
Luminescence
Polymers
absorption spectroscopy
Electron absorption
luminescence
Transmission electron microscopy
transmission electron microscopy
polymers
Quantum yield
Chromophores
chromophores
Quenching
quenching

Cite this

@article{85da471639654f57b9f1a5c76f181dcf,
title = "Energy Transfer between CNT Surface and -Re(CO)3(phen)+∗ Pendants Grafted to P4VP in Nanohybrid Shish-Kebob-like Structures",
abstract = "The adsorption of a Re(CO)3(phen)-poly(4-vinylpyridine) polymer, RePVP, on multiwall carbon nanotubes surfaces is studied by transmission electron microscopy and absorption spectroscopy in combination with chemometric techniques in MeOH/H2O solvent mixture. Nanohybrid structures like a shish-kebab (NHSK) are observed by TEM when RePVP is wrapped around carbon nanotubes (CNTs) surfaces. The association between RePVP and CNTs studied by absorption spectroscopy suggests the coexistence of CNTs with a high or low content of adsorbed RePVP on their surface. In the absence of CNTs, the photophysical properties of RePVP (i.e., luminescence quantum yield, φL, and amplitude-weighted average lifetimes, «τ») are strongly dependent on the morphology of the polymer as witnessed by the dependence of φL on the concentration of RePVP (CRePVP) and the fact that in CH3CN φL and «τ»are sensitive to O2 while in a MeOH/H2O solvent mixture they are not. In the NHSK, an energy-transfer process between excited -[Re(CO)3(phen)]+∗ pendent chromophores and the CNTs surface, with static and dynamic components, is responsible for the quenching of the RePVP luminescence by CNTs.",
author = "Iv{\'a}n Maisuls and Stefan Ostendorp and Gerhard Wilde and Parola, {A. Jorge} and Strassert, {Cristian A.} and Ezequiel Wolcan",
note = "PIP 112-2013-01-00236CO. PICT-2014-0083. UNLP (11/X779). SFB-TRR61 INST 211/622. STR1186/3-1. EXC 1003 Cluster of Excellence Cells in Motion) INST 211/719-1 FUGG. UID/QUI/50006/2019. N. 734834 under H2020-MSCA-RISE-2016. Sem PDF conforme despacho.",
year = "2020",
month = "1",
day = "1",
doi = "10.1021/acs.jpcc.9b10567",
language = "English",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "AMER CHEMICAL SOC",

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Energy Transfer between CNT Surface and -Re(CO)3(phen)+∗ Pendants Grafted to P4VP in Nanohybrid Shish-Kebob-like Structures. / Maisuls, Iván; Ostendorp, Stefan; Wilde, Gerhard; Parola, A. Jorge; Strassert, Cristian A.; Wolcan, Ezequiel.

In: Journal of Physical Chemistry C, 01.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Energy Transfer between CNT Surface and -Re(CO)3(phen)+∗ Pendants Grafted to P4VP in Nanohybrid Shish-Kebob-like Structures

AU - Maisuls, Iván

AU - Ostendorp, Stefan

AU - Wilde, Gerhard

AU - Parola, A. Jorge

AU - Strassert, Cristian A.

AU - Wolcan, Ezequiel

N1 - PIP 112-2013-01-00236CO. PICT-2014-0083. UNLP (11/X779). SFB-TRR61 INST 211/622. STR1186/3-1. EXC 1003 Cluster of Excellence Cells in Motion) INST 211/719-1 FUGG. UID/QUI/50006/2019. N. 734834 under H2020-MSCA-RISE-2016. Sem PDF conforme despacho.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - The adsorption of a Re(CO)3(phen)-poly(4-vinylpyridine) polymer, RePVP, on multiwall carbon nanotubes surfaces is studied by transmission electron microscopy and absorption spectroscopy in combination with chemometric techniques in MeOH/H2O solvent mixture. Nanohybrid structures like a shish-kebab (NHSK) are observed by TEM when RePVP is wrapped around carbon nanotubes (CNTs) surfaces. The association between RePVP and CNTs studied by absorption spectroscopy suggests the coexistence of CNTs with a high or low content of adsorbed RePVP on their surface. In the absence of CNTs, the photophysical properties of RePVP (i.e., luminescence quantum yield, φL, and amplitude-weighted average lifetimes, «τ») are strongly dependent on the morphology of the polymer as witnessed by the dependence of φL on the concentration of RePVP (CRePVP) and the fact that in CH3CN φL and «τ»are sensitive to O2 while in a MeOH/H2O solvent mixture they are not. In the NHSK, an energy-transfer process between excited -[Re(CO)3(phen)]+∗ pendent chromophores and the CNTs surface, with static and dynamic components, is responsible for the quenching of the RePVP luminescence by CNTs.

AB - The adsorption of a Re(CO)3(phen)-poly(4-vinylpyridine) polymer, RePVP, on multiwall carbon nanotubes surfaces is studied by transmission electron microscopy and absorption spectroscopy in combination with chemometric techniques in MeOH/H2O solvent mixture. Nanohybrid structures like a shish-kebab (NHSK) are observed by TEM when RePVP is wrapped around carbon nanotubes (CNTs) surfaces. The association between RePVP and CNTs studied by absorption spectroscopy suggests the coexistence of CNTs with a high or low content of adsorbed RePVP on their surface. In the absence of CNTs, the photophysical properties of RePVP (i.e., luminescence quantum yield, φL, and amplitude-weighted average lifetimes, «τ») are strongly dependent on the morphology of the polymer as witnessed by the dependence of φL on the concentration of RePVP (CRePVP) and the fact that in CH3CN φL and «τ»are sensitive to O2 while in a MeOH/H2O solvent mixture they are not. In the NHSK, an energy-transfer process between excited -[Re(CO)3(phen)]+∗ pendent chromophores and the CNTs surface, with static and dynamic components, is responsible for the quenching of the RePVP luminescence by CNTs.

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M3 - Article

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

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