Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy

Annemarie Huijser; Qing Pan; David van Duinen; Mads G. Laursen; Arnal El Nahhas; Pavel Chabera; Leon Freitag; Leticia Gonzalez; Qingyu Kong; Xiaoyi Zhang; Kristoffer Haldrup; Wesley R. Browne; Grigory Smolentsev; Jens Uhlig

doi:10.1021/acs.jpca.8b00916

Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy

Annemarie Huijser, Qing Pan, David van Duinen, Mads G. Laursen, Arnal El Nahhas, Pavel Chabera, Leon Freitag, Leticia Gonzalez, Qingyu Kong, Xiaoyi Zhang, Kristoffer Haldrup, Wesley R. Browne, Grigory Smolentsev, Jens Uhlig^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Photoinduced electronic and structural changes of a hydrogen generating supramolecular RuPt photocatalyst are studied by a combination of time-resolved photoluminescence, optical transient absorption, and X-ray absorption spectroscopy. This work uses the element specificity of X-ray techniques to focus on the interplay between the photophysical and-chemical processes and the associated time scales at the catalytic Pt moiety. We observe very fast (10 mu s time scale. However, the photosensitizing Ru moiety is fully restored on a much shorter similar to 300 ns time scale. This reaction scheme implies that we may withdraw two electrons from activated by a single photon.

Original language	English
Journal	Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
Volume	122
Issue number	31
Pages (from-to)	6396-6406
Number of pages	11
ISSN	1089-5639
DOIs	https://doi.org/10.1021/acs.jpca.8b00916
Publication status	Published - 2018

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Huijser, A., Pan, Q., van Duinen, D., Laursen, M. G., El Nahhas, A., Chabera, P., Freitag, L., Gonzalez, L., Kong, Q., Zhang, X., Haldrup, K., Browne, W. R., Smolentsev, G., & Uhlig, J. (2018). Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy. Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, 122(31), 6396-6406. https://doi.org/10.1021/acs.jpca.8b00916

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title = "Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy",

abstract = "Photoinduced electronic and structural changes of a hydrogen generating supramolecular RuPt photocatalyst are studied by a combination of time-resolved photoluminescence, optical transient absorption, and X-ray absorption spectroscopy. This work uses the element specificity of X-ray techniques to focus on the interplay between the photophysical and-chemical processes and the associated time scales at the catalytic Pt moiety. We observe very fast (10 mu s time scale. However, the photosensitizing Ru moiety is fully restored on a much shorter similar to 300 ns time scale. This reaction scheme implies that we may withdraw two electrons from activated by a single photon.",

author = "Annemarie Huijser and Qing Pan and {van Duinen}, David and Laursen, {Mads G.} and {El Nahhas}, Arnal and Pavel Chabera and Leon Freitag and Leticia Gonzalez and Qingyu Kong and Xiaoyi Zhang and Kristoffer Haldrup and Browne, {Wesley R.} and Grigory Smolentsev and Jens Uhlig",

year = "2018",

doi = "10.1021/acs.jpca.8b00916",

language = "English",

volume = "122",

pages = "6396--6406",

journal = "Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory",

issn = "1089-5639",

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Huijser, A, Pan, Q, van Duinen, D, Laursen, MG, El Nahhas, A, Chabera, P, Freitag, L, Gonzalez, L, Kong, Q, Zhang, X, Haldrup, K, Browne, WR, Smolentsev, G & Uhlig, J 2018, 'Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy', Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, vol. 122, no. 31, pp. 6396-6406. https://doi.org/10.1021/acs.jpca.8b00916

Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy. / Huijser, Annemarie; Pan, Qing; van Duinen, David et al.
In: Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, Vol. 122, No. 31, 2018, p. 6396-6406.

Research output: Contribution to journal › Journal article › Research › peer-review

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T1 - Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy

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AU - Pan, Qing

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AU - Laursen, Mads G.

AU - El Nahhas, Arnal

AU - Chabera, Pavel

AU - Freitag, Leon

AU - Gonzalez, Leticia

AU - Kong, Qingyu

AU - Zhang, Xiaoyi

AU - Haldrup, Kristoffer

AU - Browne, Wesley R.

AU - Smolentsev, Grigory

AU - Uhlig, Jens

PY - 2018

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N2 - Photoinduced electronic and structural changes of a hydrogen generating supramolecular RuPt photocatalyst are studied by a combination of time-resolved photoluminescence, optical transient absorption, and X-ray absorption spectroscopy. This work uses the element specificity of X-ray techniques to focus on the interplay between the photophysical and-chemical processes and the associated time scales at the catalytic Pt moiety. We observe very fast (10 mu s time scale. However, the photosensitizing Ru moiety is fully restored on a much shorter similar to 300 ns time scale. This reaction scheme implies that we may withdraw two electrons from activated by a single photon.

AB - Photoinduced electronic and structural changes of a hydrogen generating supramolecular RuPt photocatalyst are studied by a combination of time-resolved photoluminescence, optical transient absorption, and X-ray absorption spectroscopy. This work uses the element specificity of X-ray techniques to focus on the interplay between the photophysical and-chemical processes and the associated time scales at the catalytic Pt moiety. We observe very fast (10 mu s time scale. However, the photosensitizing Ru moiety is fully restored on a much shorter similar to 300 ns time scale. This reaction scheme implies that we may withdraw two electrons from activated by a single photon.

U2 - 10.1021/acs.jpca.8b00916

DO - 10.1021/acs.jpca.8b00916

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C2 - 30052048

SN - 1089-5639

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JO - Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory

JF - Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory

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ER -

Huijser A, Pan Q, van Duinen D, Laursen MG, El Nahhas A, Chabera P et al. Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy. Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory. 2018;122(31):6396-6406. doi: 10.1021/acs.jpca.8b00916

Shedding Light on the Nature of Photoinduced States Formed in a Hydrogen-Generating Supramolecular RuPt Photocatalyst by Ultrafast Spectroscopy

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