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Li H, Yang J, Li D, Li X, Li J, He C. Host-Guest Approach to Promoting Photocatalysis Based on Consecutive Photo-Induced Electron-Transfer Processes via Efficient Förster Resonance Energy Transfer. Angew Chem Int Ed Engl 2024:e202409094. [PMID: 38806443 DOI: 10.1002/anie.202409094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 05/30/2024]
Abstract
Supramolecular artificial light-harvesting system with highly efficient host-guest energy transfer pathway provides an ideal platform for optimizing the photochemistry process. The consecutive photo-induced electron transfer (conPET) process overcomes the energy limitation of visible-light photocatalysis, but is often compromised by mismatching between the absorption of ground state dye and its radical, weakening the efficiency of photoredox reaction. By encapsulating a conPET photocatalyst rhodamine 6G into metal-organic cage, the supramolecular approach was undertaken to tackle the intrinsic difficulty of matching the light absorption of photoexcitation between rhodamine 6G and its radical. The highly efficient Förster resonance energy transfer from the photoexcited cage to rhodamine 6G forced by host-guest encapsulation facilitates the conPET process for the single-wavelength light-driven activation of aryl halides by stabilizing and accelerating the production and accumulation of the rhodamine 6G radical intermediate. The tunable and flexible nature of the supramolecular host-guest complex renders the cage-based encapsulation strategy promising for the development of ideal photocatalysts toward the better utilization of solar energy.
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Affiliation(s)
- Hechuan Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Jianhua Yang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Danyang Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Xuezhao Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Jianxu Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Cheng He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
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2
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Zhu K, Einhaus LM, Mul G, Huijser A. Photophysical Study on the Effect of the External Potential on NiO-Based Photocathodes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5217-5224. [PMID: 38235571 PMCID: PMC10835655 DOI: 10.1021/acsami.3c09566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/01/2023] [Accepted: 12/22/2023] [Indexed: 01/19/2024]
Abstract
In the present study, we investigate the effects of the applied external potential on a dye-sensitized NiO photocathode by time-resolved photoluminescence and femtosecond transient absorption spectroscopy under operating conditions. Instead of the anticipated acceleration of photoinduced hole injection from dye into NiO at a more negative applied potential, we observe that both hole injection and charge recombination are slowed down. We cautiously assign this effect to a variation in OH- ion concentration in the inner Helmholtz plane of the electrochemical double layer with applied potential, warranting further investigation for the realization of efficient solar fuel devices.
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Affiliation(s)
- Kaijian Zhu
- PhotoCatalytic Synthesis
Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede 7500 AE, The Netherlands
| | - Lisanne M. Einhaus
- PhotoCatalytic Synthesis
Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede 7500 AE, The Netherlands
| | - Guido Mul
- PhotoCatalytic Synthesis
Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede 7500 AE, The Netherlands
| | - Annemarie Huijser
- PhotoCatalytic Synthesis
Group, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede 7500 AE, The Netherlands
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3
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Tang K, Shao JY, Zhong YW. A Multi-Pyridine-Anchored and -Linked Bilayer Photocathode for Water Reduction. Chemistry 2023; 29:e202302663. [PMID: 37782056 DOI: 10.1002/chem.202302663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/19/2023] [Accepted: 10/02/2023] [Indexed: 10/03/2023]
Abstract
The development of efficient photocathodes is of critical importance for the constructions of promising tandem photo-electrochemical cells. Most known dye-sensitized photocathodes are prepared with the conventional carboxylic or phosphonic acid anchors and require the presence of other terminal linking groups to connect catalysts; they suffer from high synthetic difficulty and low adsorption stability in aqueous media. Here, a compact bilayer photocathode has been prepared by using a pyrene-based photosensitizer with multiple terminal pyridine moieties as both the anchoring and linking groups to connect a Co hydrogen-evolution catalyst to the NiO substrate. The catalyst and dye molecule are assembled in a layer-by-layer manner on NiO through the metal-pyridine coordination. This photocathode exhibits good dye adsorption stability in aqueous media. A stable cathodic photocurrent of 70 μA cm-2 was achieved, with H2 being generated at the photocathode under the visible-light irradiation. The Faraday efficiency of H2 evolution was estimated to be 9.1 %. Transient absorption spectral studies suggest that the interfacial hole transfer occurs within a few picoseconds. The integration of the organic photosensitizer with pyridine anchoring and linking groups is expected to provide a simple method for the fabrication of stable and efficient photocathodes.
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Affiliation(s)
- Kun Tang
- Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Key Laboratory of Photochemistry Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Key Laboratory of Photochemistry Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Key Laboratory of Photochemistry Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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4
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Sahoo A, Bar M, Biswas R, Abedin T, Baitalik S. Modulation of ground and excited state properties of ruthenium complexes through sequential incorporation of metal into a polypyridyl-imidazole bridging ligand. Dalton Trans 2023; 52:15896-15906. [PMID: 37840479 DOI: 10.1039/d3dt02757k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
A polypyridyl-imidazole-based bridging ligand, 2-(4-(4,5-di(pyridine-2-yl)-1H-imidazole-2-yl)phenyl)-1H-imidazo[4,5-f][1,10]phenanthroline (phen-H2PhImz-bpy), possessing three bidentate coordinating sites, has been designed in this work. The bridging ligand is employed to synthesize mono-, bi-, and trimetallic Ru(II) complexes in combination with terminal bipyridine units for the systematic modulation of photophysical and redox properties upon sequential incorporation of the metal unit into the bridge. All the compounds are characterized via NMR spectroscopy and electrospray ionization mass spectrometry. Absorption and both steady-state and time-resolved emission spectroscopic investigations of the ligand as well as Ru(II) complexes are thoroughly conducted in different solvents. The redox behaviors of the complexes are examined through cyclic voltammetry (CV) in acetonitrile. The focus of the investigation is centered on the systematic modulation of MLCT absorption and emission as well as the redox behavior of the complex entity upon the gradual incorporation of the Ru2+ unit into the complex backbone. The emission energy, quantum yield and lifetime are found to decrease systematically with an increase in the Ru2+ unit in the complex backbone and a linear relationship is observed in each case. A good correlation is also observed between the emission energies of complexes with their respective ΔE1/2 values (the difference between the first oxidation and first reduction potential).
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Affiliation(s)
- Anik Sahoo
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Manoranjan Bar
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Raju Biswas
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Tuhin Abedin
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
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5
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Coderch G, Cordoba A, Ramírez O, Bonardd S, Leiva A, Häring M, Díaz Díaz D, Saldias C. Effects of the Solvent Vapor Exposure on the Optical Properties and Photocatalytic Behavior of Cellulose Acetate/Perylene Free-Standing Films. Polymers (Basel) 2023; 15:2787. [PMID: 37447433 DOI: 10.3390/polym15132787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
The search to deliver added value to industrialized biobased materials, such as cellulose derivatives, is a relevant aspect in the scientific, technological and innovation fields at present. To address these aspects, films of cellulose acetate (CA) and a perylene derivative (Pr) were fabricated using a solution-casting method with two different compositions. Consequently, these samples were exposed to dimethylformamide (DMF) solvent vapors so that its influence on the optical, wettability, and topographical properties of the films could be examined. The results demonstrated that solvent vapor could induce the apparent total or partial preferential orientation/migration of Pr toward the polymer-air interface. In addition, photocatalytic activities of the non-exposed and DMF vapor-exposed films against the degradation of methylene blue (MB) in an aqueous medium using light-emitting diode visible light irradiation were comparatively investigated. Apparently, the observed improvement in the performance of these materials in the MB photodegradation process is closely linked to the treatment with solvent vapor. Results from this study have allowed us to propose the fabrication and use of the improved photoactivity "all-organic" materials for potential applications in dye photodegradation in aqueous media.
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Affiliation(s)
- Gustavo Coderch
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
| | - Alexander Cordoba
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
| | - Oscar Ramírez
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, S/N, 38206 La Laguna, Spain
| | - Sebastian Bonardd
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, S/N, 38206 La Laguna, Spain
| | - Angel Leiva
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
| | - Marleen Häring
- Institut für Organische Chemie, Universitat Regensburg, Universitatsstr. 31, 93053 Regensburg, Germany
| | - David Díaz Díaz
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, S/N, 38206 La Laguna, Spain
- Institut für Organische Chemie, Universitat Regensburg, Universitatsstr. 31, 93053 Regensburg, Germany
| | - Cesar Saldias
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, Santiago 7820436, Chile
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6
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Wrede S, Cai B, Kumar A, Ott S, Tian H. Lateral Electron and Hole Hopping between Dyes on Mesoporous ZrO 2: Unexpected Influence of Solvents with a Low Dielectric Constant. J Am Chem Soc 2023; 145:11472-11476. [PMID: 37127024 DOI: 10.1021/jacs.3c01333] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Lateral intermolecular charge transfer between photosensitizers on metal oxide substrates is important for the understanding on the overall working principles of dye-sensitized systems. Such studies usually concentrate on either hole or electron transfer separately and are conducted in solvents with a high dielectric constant (εs) that are known, however, to show a drastic decrease of the local dielectric constant close to the metal oxide surface. In the present study, both hole and electron hopping between organic donor-acceptor photosensitizers was experimentally investigated on PB6 dye-sensitized mesoporous ZrO2 films. The donor (close to the surface) and acceptor (away from surface) subunit of the PB6 dye were observed to be involved in hole and electron hopping, respectively. Hole and electron transfer kinetics were found to differ remarkably in high-εs solvents, but similar in solvents with εs < 12. This finding indicates that low-εs solvents maintain similar local dielectric constant values close to, and further away from, the semiconductor surface, which is different from the previously observed behavior of high dielectric constant solvents at a metal oxide interface.
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Affiliation(s)
- Sina Wrede
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Bin Cai
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Amol Kumar
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Sascha Ott
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
| | - Haining Tian
- Department of Chemistry-Ångström Laboratory, Uppsala University, SE-75120 Uppsala, Sweden
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7
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Yoshimura N, Yoshida M, Kobayashi A. Efficient Hydrogen Production by a Photoredox Cascade Catalyst Comprising Dual Photosensitizers and a Transparent Electron Mediator. J Am Chem Soc 2023; 145:6035-6038. [PMID: 36912645 PMCID: PMC10038088 DOI: 10.1021/jacs.2c13687] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
One-directional electron transport between a photocatalyst and redox mediator is crucial for achieving highly active Z-scheme water-splitting photocatalysis. Herein, a photoredox cascade catalyst that artificially mimics the electron transport chain in natural photosynthesis was synthesized from a Pt-TiO2 nanoparticle catalyst, two photosensitizers (RuCP6 and RuP6), and a visible-light-transparent electron mediator (HCRu). During photocatalytic hydrogen evolution in the presence of a redox-reversible electron donor, [Co(bpy)3]2+ (bpy = 2,2'-bipyridine), the HCRu-Zr-RuCP6-Zr-RuP6@Pt-TiO2 (PRCC-1) photocatalyst exhibited the highest reported initial (1 h) apparent quantum yield (iAQY = 2.23%) of dye-sensitized TiO2 photocatalysts to date. Furthermore, PRCC-1 successfully produced hydrogen when using hydroquinone monosulfonate (H2QS-) as the hydrogen source.
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Affiliation(s)
- Nobutaka Yoshimura
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masaki Yoshida
- Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 1 Gakuen-Uegahara, Sanda, Hyogo 669-1337, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
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8
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Lalaoui N, Abdellah M, Materna KL, Xu B, Tian H, Thapper A, Sa J, Hammarström L, Ott S. Gold nanoparticle-based supramolecular approach for dye-sensitized H 2-evolving photocathodes. Dalton Trans 2022; 51:15716-15724. [PMID: 36177940 DOI: 10.1039/d2dt02798d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solar conversion of water into the storable energy carrier H2 can be achieved through photoelectrochemical water splitting using light adsorbing anodes and cathodes bearing O2 and H2 evolving catalysts, respectively. Herein a novel photocathode nanohybrid system is reported. This photocathode consists of a dye-sensitized p-type nickel oxide (NiO) with a perylene-based chromophore (PCA) and a tetra-adamantane modified cobaloxime reduction catalyst (Co) that photo-reduces aqueous protons to H2. An original supramolecular approach was employed, using β-cyclodextrin functionalized gold nanoparticles (β-CD-AuNPs) to link the alkane chain of the PCA dye to the adamantane moieties of the cobaloxime catalyst (Co). This new architecture was investigated by photoelectrochemical measurements and via femtosecond-transient absorption spectroscopy. The results show that irradiation of the complete NiO|PCA|β-CD-AuNPs|Co electrode leads to ultrafast hole injection into NiO (π = 3 ps) from the excited dye, followed by rapid reduction of the catalyst, and finally H2 evolution.
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Affiliation(s)
- Noémie Lalaoui
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden. .,Univ. Grenoble Alpes, UMR CNRS 5250, Département de Chimie Moléculaire, 38000 Grenoble, France
| | - Mohamed Abdellah
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden. .,Department of Chemistry, Qena Faculty of Science, South Valley University, 83523 Qena, Egypt
| | - Kelly L Materna
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Bo Xu
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Haining Tian
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Anders Thapper
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Jacinto Sa
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden. .,Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Leif Hammarström
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
| | - Sascha Ott
- Department of Chemistry-Ångström Laboratories, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
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9
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Mukhopadhyay A, Liu K, Paulino V, Olivier JH. Modulating the Conduction Band Energies of Si Electrode Interfaces Functionalized with Monolayers of a Bay-Substituted Perylene Bisimide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4266-4275. [PMID: 35353503 DOI: 10.1021/acs.langmuir.1c03423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The confinement of π-conjugated chromophores on silicon (Si) electrode surfaces is a powerful approach to engineer electroresponsive monolayers relevant to microelectronics, electrocatalysis, and information storage and processing. While common strategies to functionalize Si interfaces exploit molecularly dissolved building blocks, only a handful number of studies have leveraged the structure-function relationships of π-aggregates to tune the electronic structures of hybrid monolayers at Si interfaces. Herein, we show that the semiconducting properties of n-type monolayers constructed on Si electrodes are intimately correlated to the initial aggregation state of π-conjugated chromophore precursors derived from bay-substituted perylene bisimide (PBI) units. Specifically, our study unravels that for n-type monolayers engineered using PBI π-aggregates, the cathodic reduction potentials required to inject negative charge carriers into the conduction bands can be stabilized by 295 mV through reversible switching of the maximum anodic potential (MAP) that is applied during the oxidative cycles (+0.5 or +1.5 V vs Ag/AgCl). This redox-assisted stabilization effect is not observed with n-type monolayers derived from molecularly dissolved PBI cores and monolayers featuring a low surface density of the redox-active probes. These findings unequivocally point to the crucial role played by PBI π-aggregates in modulating the conduction band energies of n-type monolayers where a high MAP of +1.5 V enables the formation of electronic trap states that facilitate electron injection when sweeping back to cathodic potentials. Because the structure-function relationships of PBI π-aggregates are shown to modulate the semiconducting properties of hybrid n-type monolayers constructed at Si interfaces, our results hold promising opportunities to develop redox-switchable monolayers for engineering nonvolatile electronic memory devices.
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Affiliation(s)
- Arindam Mukhopadhyay
- Department of Chemistry, University of Miami, Cox Science Center, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Kaixuan Liu
- Department of Chemistry, University of Miami, Cox Science Center, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Victor Paulino
- Department of Chemistry, University of Miami, Cox Science Center, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Jean-Hubert Olivier
- Department of Chemistry, University of Miami, Cox Science Center, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
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10
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Hou L, Jing X, Huang H, Duan C. Merging Charge Transfer into Metal-Organic Frameworks to Achieve High Reduction Potentials via Multiphoton Excitation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:15307-15316. [PMID: 35344330 DOI: 10.1021/acsami.2c01595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Utilization of multiphotons to achieve high reduction potentials is a highly demanding but still challenging task for reductive cleavage of inert bonds. Herein, we report a new charge transfer approach that simultaneously excites the electron-rich dye and the radical anionic of the electron-deficient one for photocatalytic activation of aryl chlorides with high reduction potentials (Ered ≈ -1.9 to -2.9 V). Interactions between the tetraphenylbenzene-1,4,-diamine dyes in the large pores of metal-organic frameworks and the adsorbed 9,10-dicyanoanthracene partly endows charge transfer in the ground state. The first photoexcitation led to the formation charge separation pairs containing both radical cation and anion for second photon excitation. The possibility of modifying each absorption band of the two dyes independently innovated the resultant aryl radicals applied in various useful transformations, expanding multiphoton manifolds on both the dye scopes and reaction versions. A comparison of the catalytic performance between different structural patterns of metal-organic frameworks with the same ligand demonstrated that the incorporating of the organic dyes within the pores of the frameworks was essential to form charge-transfer species and accelerate the interesting chemical conversion.
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Affiliation(s)
- Leixin Hou
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
| | - Xu Jing
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
| | - Huilin Huang
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry, Dalian University of Technology, Dalian 116024, P.R. China
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11
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Zhao Z, Niu F, Li P, Wang H, Zhang Z, Meyer GJ, Hu K. Visible Light Generation of a Microsecond Long-Lived Potent Reducing Agent. J Am Chem Soc 2022; 144:7043-7047. [PMID: 35271254 DOI: 10.1021/jacs.2c00422] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Photoexcitation of molecular radicals can produce strong reducing agents; however, the limited lifetimes of the doublet excited states preclude many applications. Herein, we propose and demonstrate a general strategy to translate a highly energetic electron from a doublet excited state to a ZrO2 insulator, thereby increasing the lifetime by about 6 orders of magnitude while maintaining a reducing potential less than -2.4 V vs SCE. Specifically, red light excitation of a salicylic acid modified perylene diimide radical anion PDI•- anchored to a ZrO2 insulator yields a ZrO2(e-)|PDI charge separated state with an ∼10 μs lifetime in 23% yield. The ZrO2(e-)s were shown to drive CO2 → CO reduction with a Re catalyst present in micromolar concentrations. More broadly, this strategy provides new opportunities to reduce important reagents and catalysts at low concentrations through diffusional electron transfer.
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Affiliation(s)
- Zijian Zhao
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Fushuang Niu
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Pengju Li
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Hanqi Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Zhenghao Zhang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan Road, Shanghai 200433, PR China
| | - Gerald J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Murray Hall 2202B, Chapel Hill, North Carolina 27599-3290, United States
| | - Ke Hu
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 220 Handan Road, Shanghai 200433, PR China
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12
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Yuan J, Wei Z, Shen K, Yang Y, Liu M, Jing X, Duan C. Encapsulating electron-deficient dyes into Metal-Organic Capsules To Achieve High Reduction Potentials. Dalton Trans 2022; 51:10860-10865. [DOI: 10.1039/d2dt01166b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design of artificial supramolecular systems that mimic the structure and functionality of natural enzymes to achieve efficient chemical conversions is a promising subject. In this work, we assembled a...
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13
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Materna KL, Hammarström L. Photoredox Catalysis Using Heterogenized Iridium Complexes*. Chemistry 2021; 27:16966-16977. [PMID: 34137473 PMCID: PMC9292873 DOI: 10.1002/chem.202101651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Indexed: 12/27/2022]
Abstract
Heterogenized photoredox catalysts provide a path for sustainable chemical synthesis using highly tunable, reusable constructs. Here, heterogenized iridium complexes as photoredox catalysts were assembled via covalent attachment to metal oxide surfaces (ITO, ZrO2 , Al2 O3 ) in thin film or nanopowder constructs. The goal was to understand which materials provided the most promising constructs for catalysis. To do this, reductive dehalogenation of bromoacetophenone to acetophenone was studied as a test reaction for system optimization. All catalyst constructs produced acetophenone with high conversions and yields with the fastest reactions complete in fifteen minutes using Al2 O3 supports. The nanopowder catalysts resulted in faster and more efficient catalysis, while the thin film catalysts were more robust and easily reused. Importantly, the thin film constructs show promise for future photoelectrochemical and electrochemical photoredox setups. Finally, all catalysts were reusable 2-3 times, performing at least 1000 turnovers (Al2 O3 ), demonstrating that heterogenized catalysts are a sustainable catalyst alternative.
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Affiliation(s)
- Kelly L. Materna
- Department of Chemistry-Ångström LaboratoriesUppsala UniversityBox 523, SE75120UppsalaSweden
| | - Leif Hammarström
- Department of Chemistry-Ångström LaboratoriesUppsala UniversityBox 523, SE75120UppsalaSweden
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14
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Hua C, Liu K, Wu Y, Xu W, Zhang J, Wang Z, Liu K, Fang Y. An O-Carborane Derivative of Perylene Bisimide-Based Thin Film Displaying both Electrochromic and Electrofluorochromic Properties. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49500-49508. [PMID: 34612639 DOI: 10.1021/acsami.1c15223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The widespread application in displays, information encryption, and sensors has boosted studies of electrochromic (EC) systems combining large contrast, fast response, high robustness, and low-cost properties. Herein, we report a film-type new EC system with a non-planar perylene bisimide-carborane derivative (PBI-CB) as the electroactive materials. It was revealed that the film demonstrated outstanding EC properties with response times of 1.18 and 0.94 s for the coloration and bleaching processes, respectively, large transmittance variation around 630 nm (45.7%), and superior stability for more than 200 coloration-bleaching cycles. Moreover, the film also showed precious electrofluorochromic (EFC) properties. The emission around 650 nm at the "on" state could be more than 24.5 times than that at the "off" state, and the response times of the off and on processes could reach 2.2 s and 4.3 s, respectively. Considering the facts that the film was fabricated via simple drop-coating, the EC/EFC operation was performed via a routine three-electrode system and the voltage applied is only -1.3 V, we believe that the EC/EFC system as developed would find applications in smart windows, information encryption, optoelectrical sensing, etc. In addition, the work could also pave the way for developing combined EC/EFC systems via employing known organic fluorophores as the electrochemical active materials, which are not only abundant in numbers but also solution-processable.
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Affiliation(s)
- Chunxia Hua
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Ke Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Ying Wu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Wenjun Xu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Jing Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Zhaolong Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Kaiqiang Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
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15
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Nhon L, Shan B, Taggart AD, Wolfe RMW, Li TT, Klug CM, Nayak A, Bullock RM, Cahoon JF, Meyer TJ, Schanze KS, Reynolds JR. Influence of Surface and Structural Variations in Donor-Acceptor-Donor Sensitizers on Photoelectrocatalytic Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47499-47510. [PMID: 34590823 DOI: 10.1021/acsami.1c11879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Conjugated organic chromophores composed of linked donor (D) and acceptor (A) moieties have attracted considerable attention for photoelectrochemical applications. In this work, we compare the optoelectronic properties and photoelectrochemical performance of two D-A-D structural isomers with thiophene-X-carboxylic acid (X denotes 3 and 2 positions) derivatives and 2,1,3-benzothiadiazole as the D and A moieties, respectively. 5,5'-(Benzo[c][1,2,5]thiadiazole-4,7-diyl)bis(thiophene-3-carboxylic acid), BTD1, and 5,5'-(benzo[c][1,2,5]thiadiazole-4,7-diyl)bis(thiophene-2-carboxylic acid), BTD2, were employed in the study to understand how structural isomers affect surface attachments within chromophore-catalyst assemblies and their influence on charge-transfer dynamics. Crystal structures revealed that varying the position of the -COOH anchoring group causes the molecules to either contort out of a plane (BTD1) or adopt a near-perfect planar conformation (BTD2). BTD1 and BTD2 were co-loaded with either a water oxidation catalyst, [Ru(2,6-bis(1-methylbenzimidazol-2-yl)pyridine)-(4,4'-((HO)2OPCH2)2-2,2'-bipyridine)(OH2)]2, RuCt2+, or proton reduction catalyst [Ni(P2PhN2C6H4CH2PO3H2)2]2+, NiCt2+, on oxide electrodes to facilitate photodriven water splitting reactions. Emission quenching measurements indicate that both BTD1 and BTD2 inject electrons into n-type SnO2|TiO2 electrodes and holes into p-type NiO semiconductors from their respective excited states at high efficiencies >60%. Photocurrent densities of chromophore-catalyst assemblies obtained using linear sweep voltammetry (LSV) show that BTD2-sensitized photoanodes generate significantly more photocurrent than BTD1-sensitized electrodes; however, both exhibit similar performances at the photocathode. Photoelectrocatyltic measurements demonstrate that both BTD1 and BTD2 performed similarly, generating Faradaic efficiencies of 39 and 38% at the anode or 61 and 79% at the cathode. Transient absorption measurements suggest that the differences between the LSV and photoelectrocatalytic measurements result from the differences in quantum yields of the photogenerated redox equivalents, which is also a reflection of the varying metal oxide surface conformation. Our findings suggest that BTD2 should be investigated further in photocathodic studies since it has the structural advantage of being incorporated into diverse types of chromophore-catalyst assemblies.
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Affiliation(s)
- Linda Nhon
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Bing Shan
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Aaron D Taggart
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Rylan M W Wolfe
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ting-Ting Li
- Research Center of Applied Solid State Chemistry, Ningbo University, Ningbo 315211, China
| | - Christina M Klug
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-12, Richland, Washington 99352, United States
| | - Animesh Nayak
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - R Morris Bullock
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-12, Richland, Washington 99352, United States
| | - James F Cahoon
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Kirk S Schanze
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - John R Reynolds
- School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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16
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Nikoloudakis E, Pati PB, Charalambidis G, Budkina DS, Diring S, Planchat A, Jacquemin D, Vauthey E, Coutsolelos AG, Odobel F. Dye-Sensitized Photoelectrosynthesis Cells for Benzyl Alcohol Oxidation Using a Zinc Porphyrin Sensitizer and TEMPO Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02609] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Emmanouil Nikoloudakis
- Laboratory of Bioinorganic Chemistry, Department of Chemistry, University of Crete, Voutes Campus, 70013 Heraklion, Crete, Greece
| | - Palas Baran Pati
- Université de Nantes, CNRS, UMR 6230, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), 2 rue de la Houssinière, 44322 Nantes Cedex 3, France
| | - Georgios Charalambidis
- Laboratory of Bioinorganic Chemistry, Department of Chemistry, University of Crete, Voutes Campus, 70013 Heraklion, Crete, Greece
| | - Darya S. Budkina
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, CH-1211 Geneva, Switzerland
| | - Stéphane Diring
- Université de Nantes, CNRS, UMR 6230, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), 2 rue de la Houssinière, 44322 Nantes Cedex 3, France
| | - Aurélien Planchat
- Université de Nantes, CNRS, UMR 6230, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), 2 rue de la Houssinière, 44322 Nantes Cedex 3, France
| | - Denis Jacquemin
- Université de Nantes, CNRS, UMR 6230, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), 2 rue de la Houssinière, 44322 Nantes Cedex 3, France
| | - Eric Vauthey
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, CH-1211 Geneva, Switzerland
| | - Athanassios G. Coutsolelos
- Laboratory of Bioinorganic Chemistry, Department of Chemistry, University of Crete, Voutes Campus, 70013 Heraklion, Crete, Greece
| | - Fabrice Odobel
- Université de Nantes, CNRS, UMR 6230, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), 2 rue de la Houssinière, 44322 Nantes Cedex 3, France
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Shen L, Zhang S, Ding H, Niu F, Chu Y, Wu W, Hu Y, Hu K, Hua J. Pure organic quinacridone dyes as dual sensitizers in tandem photoelectrochemical cells for unassisted total water splitting. Chem Commun (Camb) 2021; 57:5634-5637. [PMID: 33977952 DOI: 10.1039/d1cc01570b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pure organic dye QAP-C8 based on quinacridone (QA) with octyl side chains as the donor and pyridine dicarboxylic acid (PDA) as the acceptor was first used in both the photoanode and the photocathode of photoelectrochemical cells. A tandem device with QAP-C8 as the photosensitizer realized overall water splitting and showed a STH of 0.11% under neutral pH conditions without an external bias.
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Affiliation(s)
- Luze Shen
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China.
| | - Shicong Zhang
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China.
| | - Haoran Ding
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China.
| | - Fushuang Niu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China.
| | - Yanmeng Chu
- Michael Grätzel Center for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1056 Luoyu Road, Wuhan 430074, Hubei, P. R. China
| | - Wenjun Wu
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China.
| | - Yue Hu
- Michael Grätzel Center for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1056 Luoyu Road, Wuhan 430074, Hubei, P. R. China
| | - Ke Hu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. China.
| | - Jianli Hua
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China.
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18
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Sherman BD, McMillan NK, Willinger D, Leem G. Sustainable hydrogen production from water using tandem dye-sensitized photoelectrochemical cells. NANO CONVERGENCE 2021; 8:7. [PMID: 33650039 PMCID: PMC7921270 DOI: 10.1186/s40580-021-00257-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 02/16/2021] [Indexed: 05/06/2023]
Abstract
If generated from water using renewable energy, hydrogen could serve as a carbon-zero, environmentally benign fuel to meet the needs of modern society. Photoelectrochemical cells integrate the absorption and conversion of solar energy and chemical catalysis for the generation of high value products. Tandem photoelectrochemical devices have demonstrated impressive solar-to-hydrogen conversion efficiencies but have not become economically relevant due to high production cost. Dye-sensitized solar cells, those based on a monolayer of molecular dye adsorbed to a high surface area, optically transparent semiconductor electrode, offer a possible route to realizing tandem photochemical systems for H2 production by water photolysis with lower overall material and processing costs. This review addresses the design and materials important to the development of tandem dye-sensitized photoelectrochemical cells for solar H2 production and highlights current published reports detailing systems capable of spontaneous H2 formation from water using only dye-sensitized interfaces for light capture.
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Affiliation(s)
- Benjamin D Sherman
- Department of Chemistry and Biochemistry, Texas Christian University, Campus Box 298860, Fort Worth, TX, 76129, USA.
| | - Nelli Klinova McMillan
- Department of Chemistry and Biochemistry, Texas Christian University, Campus Box 298860, Fort Worth, TX, 76129, USA
| | - Debora Willinger
- Department of Chemistry and Biochemistry, Texas Christian University, Campus Box 298860, Fort Worth, TX, 76129, USA
| | - Gyu Leem
- Department of Chemistry, State University of New York College of Environmental Science and Forestry, 1 Forestry Drive, Syracuse, NY, 13210, USA
- The Michael M. Szwarc Polymer Research Institute, 1 Forestry Drive, Syracuse, NY, 13210, USA
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19
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Huang J, Sun J, Wu Y, Turro C. Dirhodium(II,II)/NiO Photocathode for Photoelectrocatalytic Hydrogen Evolution with Red Light. J Am Chem Soc 2021; 143:1610-1617. [DOI: 10.1021/jacs.0c12171] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jie Huang
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jiaonan Sun
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Yiying Wu
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Claudia Turro
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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20
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Investigating Light-Induced Processes in Covalent Dye-Catalyst Assemblies for Hydrogen Production. Catalysts 2020. [DOI: 10.3390/catal10111340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The light-induced processes occurring in two dye-catalyst assemblies for light-driven hydrogen production were investigated by ultrafast transient absorption spectroscopy. These dyads consist of a push-pull organic dye based on a cyclopenta[1,2-b:5,4-b’]dithiophene (CPDT) bridge, covalently linked to two different H2-evolving cobalt catalysts. Whatever the nature of the latter, photoinduced intramolecular electron transfer from the excited state of the dye to the catalytic center was never observed. Instead, and in sharp contrast to the reference dye, a fast intersystem crossing (ISC) populates a long-lived triplet excited state, which in turn non-radiatively decays to the ground state. This study thus shows how the interplay of different structures in a dye-catalyst assembly can lead to unexpected excited state behavior and might open up new possibilities in the area of organic triplet sensitizers. More importantly, a reductive quenching mechanism with an external electron donor must be considered to drive hydrogen production with these dye-catalyst assemblies.
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21
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Zhu Y, Wang D, Huang Q, Du J, Sun L, Li F, Meyer TJ. Stabilization of a molecular water oxidation catalyst on a dye-sensitized photoanode by a pyridyl anchor. Nat Commun 2020; 11:4610. [PMID: 32929088 PMCID: PMC7490713 DOI: 10.1038/s41467-020-18417-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 08/12/2020] [Indexed: 11/13/2022] Open
Abstract
Understanding and controlling the properties of water-splitting assemblies in dye-sensitized photoelectrosynthesis cells is a key to the exploitation of their properties. We demonstrate here that, following surface loading of a [Ru(bpy)3]2+ (bpy = 2,2′-bipyridine) chromophore on nanoparticle electrodes, addition of the molecular catalysts, Ru(bda)(L)2 (bda = 2,2′-bipyridine-6,6′-dicarboxylate) with phosphonate or pyridyl sites for water oxidation, gives surfaces with a 5:1 chromophore to catalyst ratio. Addition of the surface-bound phosphonate derivatives with L = 4-pyridyl phosphonic acid or diethyl 3-(pyridin-4-yloxy)decyl-phosphonic acid, leads to well-defined surfaces but, following oxidation to Ru(III), they undergo facile, on-surface dimerization to give surface-bound, oxo-bridged dimers. The dimers have a diminished reactivity toward water oxidation compared to related monomers in solution. By contrast, immobilization of the Ru-bda catalyst on TiO2 with the 4,4′-dipyridyl anchoring ligand can maintain the monomeric structure of catalyst and gives relatively stable photoanodes with photocurrents that reach to 1.7 mA cm−2 with an optimized, applied bias photon-to-current efficiency of 1.5%. Understanding the properties of water-splitting assemblies in dye-sensitized photoelectrochemical cells is a key challenge in artificial photosynthesis. Here, the authors report the importance of anchoring groups on a water oxidation catalyst in determining active species on metal oxide surfaces.
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Affiliation(s)
- Yong Zhu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Degao Wang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China.,Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Qing Huang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China
| | - Jian Du
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.,Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, 10044, Sweden.,Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou, 310024, China
| | - Fei Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, China.
| | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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Amiri M, Martinez Perez O, Endean RT, Rasu L, Nepal P, Xu S, Bergens SH. Solid-phase synthesis and photoactivity of Ru-polypyridyl visible light chromophores bonded through carbon to semiconductor surfaces. Dalton Trans 2020; 49:10173-10184. [PMID: 32666974 DOI: 10.1039/d0dt01776k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,10-Phenanthroline (phen) was grafted to either indium tin oxide (ITO), fluorine-doped tin oxide (FTO), or titanium dioxide (TiO2) semiconductors (SC's) by electrochemical reduction of 5-diazo-phen. The phen ligand is bonded to the semiconductor at C5, and it can be handled in air. The semiconductor-phen (SC-phen) complexes displace both CH3CN ligands from either cis-[Ru(Mebipy)2(CH3CN)2]2+ (Mebipy = 4,4'-methyl-2,2'-bipyridine), cis-[Ru(tBubipy)2(CH3CN)2]2+ (tBubipy = 4,4'-tert-butyl-2,2'-bipyridine), or cis-[Ru(pheno)(bipy)(CH3CN)2]2+ (bipy = 2,2'-bipyridine; pheno = 1,10-phenanthroline-5,6-dione) dissolved in DCM/THF (4 h, 70 °C) to form the corresponding surface-bound SC-[(phen)Ru(bipyridyl)2]2+ chromophores. The identities of the SC-[(phen)Ru(Mebipy)2]2+, SC-[(phen)Ru(tBubipy)2]2+, and SC-[(phen)Ru(pheno)(bipy)]2+ (SC = ITO, FTO or TiO2) chromophores were confirmed by X-ray photoelectron spectroscopy (XPS); inductively coupled plasma mass spectrometry (ICP-MS); UV-vis and reflectance infrared spectroscopies; and cyclic voltammetry (CV). The data were compared to analogous Ru-polypyridyl control compounds dissolved in solution. A facile ketone-amine condensation solid-phase synthesis reaction between SC-[(phen)Ru(pheno)(bipy)]2+ and [Ru(1,10-phenthroline-5,6-diamine)(bipy)2]2+ in ethanol (80 °C, 1 h) formed the dinuclear, bound chromophore SC-[(phen)(bipy)Ru(tpphz)Ru(bipy)2]4+ (tpphz = tetrapyrido[3,2-a:2',3'-c:3'',2''-h:2''',3'''-j]phenazine). Photoelectrochemical oxidation of hydroquinone and triethylamine under acidic, neutral, or basic conditions showed that the SC-chromophore photoanodes are active, and that TiO2-[(phen)Ru(Mebipy)2]2+ is the most active and stable under basic- and neutral conditions. The dinuclear chromophore SC-[(phen)(bipy)Ru(tpphz)Ru(bipy)2]4+ was most active and stable under potentiostatic conditions in acid.
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Affiliation(s)
- Mona Amiri
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada.
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Materna K, Beiler AM, Thapper A, Ott S, Tian H, Hammarström L. Understanding the Performance of NiO Photocathodes with Alkyl-Derivatized Cobalt Catalysts and a Push-Pull Dye. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31372-31381. [PMID: 32538612 PMCID: PMC7467559 DOI: 10.1021/acsami.0c05228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/15/2020] [Indexed: 05/22/2023]
Abstract
Mesoporous NiO photocathodes containing the push-pull dye PB6 and alkyl-derivatized cobaloxime catalysts were prepared using surface amide couplings and analyzed for photocatalytic proton reduction catalysis. The length of the alkyl linker used to derivatize the cobalt catalysts was found to correlate to the photocurrent with the highest photocurrent observed using shorter alkyl linkers but the lowest one for samples without linker. The alkyl linkers were also helpful in slowing dye-NiO charge recombination. Photoelectrochemical measurements and femtosecond transient absorption spectroscopic measurements suggested electron transfer to the surface-immobilized catalysts occurred; however, H2 evolution was not observed. Based on UV-vis, X-ray fluorescence spectroscopy (XRF), and X-ray photoelectron spectroscopy (XPS) measurements, the cobalt catalyst appeared to be limiting the photocathode performance mainly via cobalt demetallation from the oxime ligand. This study highlights the need for a deeper understanding of the effect of catalyst molecular design on photocathode performance.
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Decavoli C, Boldrini CL, Manfredi N, Abbotto A. Molecular Organic Sensitizers for Photoelectrochemical Water Splitting. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000026] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Cristina Decavoli
- Department of Materials Science and INSTM Unit University of Milano‐Bicocca Via R. Cozzi 55 20125 Milano Italy
| | - Chiara Liliana Boldrini
- Department of Materials Science and INSTM Unit University of Milano‐Bicocca Via R. Cozzi 55 20125 Milano Italy
| | - Norberto Manfredi
- Department of Materials Science and INSTM Unit University of Milano‐Bicocca Via R. Cozzi 55 20125 Milano Italy
| | - Alessandro Abbotto
- Department of Materials Science and INSTM Unit University of Milano‐Bicocca Via R. Cozzi 55 20125 Milano Italy
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25
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Robb AJ, Knorr ES, Watson N, Hanson K. Metal ion linked multilayers on mesoporous substrates: Energy/electron transfer, photon upconversion, and more. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Badgurjar D, Shan B, Nayak A, Wu L, Chitta R, Meyer TJ. Electron-Withdrawing Boron Dipyrromethene Dyes As Visible Light Absorber/Sensitizers on Semiconductor Oxide Surfaces. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7768-7776. [PMID: 31961645 DOI: 10.1021/acsami.9b20167] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The synthesis, characterization, and electrochemical and photophysical properties of the phosphonate-derivatized carbazole (CBZ) and boron dipyrromethene (BODIPY) chromophores in the dyes, BODIPY(CBZ)2PO3H2 (8) and BODIPY(Tol)2PO3H2 (7), are described. The oxide-bound dyes have been explored as light absorbers in dye-sensitized photoelectrosynthesis cell (DSPEC) applications. The BODIPY-CBZ phosphonate ester (6) features a broad, intense UV-visible absorption spectrum with absorptions at 297 and 650 nm that arise from mixed transitions at the CBZ and BODIPY units. Electrochemical measurements on BODIPY(CBZ)2Br (4) in 0.1 M [nBu4N][PF6] in dichloromethane, vs normal hydrogen electrode (NHE), reveal reversible oxidations at 1.19 and 1.41 V and a reversible reduction at -0.59 V. On indium tin oxide (ITO) and TiO2, a reversible one-electron oxidation appears for 7 at 0.86 and 0.90 V vs NHE in dichloromethane, respectively, which demonstrates the redox stability on metal oxide surfaces. The results of nanosecond transient absorption measurements on SnO2/TiO2 electrodes provide direct evidence for excited-state electron injection into the conduction band of TiO2 following 590 nm excitation. A longer lifetime for 8+ compared to 7+ is consistent with extensive intramolecular charge separation between the CBZ and BODIPY units on the surface. Photoelectrochemical studies on 8 on a SnO2/TiO2 photoanode resulted in sustained photocurrents with current maxima of ∼200 μA/cm2 with hydroquinone added as a reductant under 1 sun (AM1.5 100 mW·cm-2) illumination at pH 4.5 in 0.1 M acetate buffer and 0.4 M LiClO4. On mixed SnO2/TiO2 electrode surfaces, with the added catalyst [Ru(Mebimpy)((4,4'-(OH)2PO-CH2)2bpy)(OH2)]2+ and chromophores 7 and 8, addition of 0.1 M benzyl alcohol resulted in sustained photocurrents of 12 and 35 μA/cm2, consistent with oxidation to benzaldehyde.
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Affiliation(s)
- Deepak Badgurjar
- Department of Chemistry, School of Chemical Sciences & Pharmacy , Central University of Rajasthan , Kishangarh, Dist. Ajmer , Rajasthan 305817 , India
| | - Bing Shan
- Department of Chemistry , University of North Carolina at Chapel Hill , CB3290 , Chapel Hill , North Carolina 27599 , United States
| | - Animesh Nayak
- Department of Chemistry , University of North Carolina at Chapel Hill , CB3290 , Chapel Hill , North Carolina 27599 , United States
| | - Lei Wu
- Department of Chemistry , University of North Carolina at Chapel Hill , CB3290 , Chapel Hill , North Carolina 27599 , United States
| | - Raghu Chitta
- Department of Chemistry, School of Chemical Sciences & Pharmacy , Central University of Rajasthan , Kishangarh, Dist. Ajmer , Rajasthan 305817 , India
| | - Thomas J Meyer
- Department of Chemistry , University of North Carolina at Chapel Hill , CB3290 , Chapel Hill , North Carolina 27599 , United States
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Materna KL, Lalaoui N, Laureanti JA, Walsh AP, Rimgard BP, Lomoth R, Thapper A, Ott S, Shaw WJ, Tian H, Hammarström L. Using Surface Amide Couplings to Assemble Photocathodes for Solar Fuel Production Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4501-4509. [PMID: 31872996 DOI: 10.1021/acsami.9b19003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A facile surface amide-coupling method was examined to attach dye and catalyst molecules to silatrane-decorated NiO electrodes. Using this method, electrodes with a push-pull dye were assembled and characterized by photoelectrochemistry and transient absorption spectroscopy. The dye-sensitized electrodes exhibited hole injection into NiO and good photoelectrochemical stability in water, highlighting the stability of the silatrane anchoring group and the amide linkage. The amide-coupling protocol was further applied to electrodes that contain a molecular proton reduction catalyst for use in photocathode architectures. Evidence for catalyst reduction was observed during photoelectrochemical measurements and via femtosecond-transient absorption spectroscopy demonstrating the possibility for application in photocathodes.
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Affiliation(s)
- Kelly L Materna
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
| | - Noémie Lalaoui
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
| | - Joseph A Laureanti
- Pacific Northwest National Laboratory , P.O. Box 999, Richland , Washington 99352 , United States
| | - Aaron P Walsh
- Ferro Corporation , Penn Yan , New York 14527 , United States
| | - Belinda Pettersson Rimgard
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
| | - Reiner Lomoth
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
| | - Anders Thapper
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
| | - Sascha Ott
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
| | - Wendy J Shaw
- Pacific Northwest National Laboratory , P.O. Box 999, Richland , Washington 99352 , United States
| | - Haining Tian
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
| | - Leif Hammarström
- Department of Chemistry-Ångström Laboratories , Uppsala University , P.O. Box 523, Uppsala SE75120 , Sweden
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Ye S, Ding C, Liu M, Wang A, Huang Q, Li C. Water Oxidation Catalysts for Artificial Photosynthesis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902069. [PMID: 31495962 DOI: 10.1002/adma.201902069] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/01/2019] [Indexed: 06/10/2023]
Abstract
Water oxidation is the primary reaction of both natural and artificial photosynthesis. Developing active and robust water oxidation catalysts (WOCs) is the key to constructing efficient artificial photosynthesis systems, but it is still facing enormous challenges in both fundamental and applied aspects. Here, the recent developments in molecular catalysts and heterogeneous nanoparticle catalysts are reviewed with special emphasis on biomimetic catalysts and the integration of WOCs into artificial photosystems. The highly efficient artificial photosynthesis depends largely on active WOCs integrated into light harvesting materials via rational interface engineering based on in-depth understanding of charge dynamics and the reaction mechanism.
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Affiliation(s)
- Sheng Ye
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, China
| | - Chunmei Ding
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, China
| | - Mingyao Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, China
| | - Aoqi Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, China
| | - Qinge Huang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, China
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Nastasi F, Santoro A, Serroni S, Campagna S, Kaveevivitchai N, Thummel RP. Early photophysical events of a ruthenium(ii) molecular dyad capable of performing photochemical water oxidation and of its model compounds. Photochem Photobiol Sci 2019; 18:2164-2173. [PMID: 30793142 DOI: 10.1039/c8pp00530c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The early photophysical events occurring in the dinuclear metal complex [(ttb-terpy)(I)Ru(μ-dntpz)Ru(bpy)2]3+ (2; ttb-terpy = 4,4',4''-tri-tert-butyl-terpy; bpy = 2,2'-bipyridine; dntpz = 2,5-di-(1,8-dinaphthyrid-2-yl)pyrazine) - a species containing the chromophoric {(bpy)2Ru(μ-dntpz)}2+ subunit and the catalytic {(I)(ttb-terpy)Ru(μ-dntpz)}+ unit, already reported to be able to perform photocatalytic water oxidation - have been studied by ultrafast pump-probe spectroscopy in acetonitrile solution. The model species [Ru(bpy)2(dntpz)]2+ (1), [(bpy)2Ru(μ-dntpz)Ru(bpy)2]4+ (3), and [(ttb-terpy)(I)Ru((μ-dntpz)Ru[(ttb-terpy)(I)]2+ (4) have also been studied. For completeness, the absorption spectra, redox behavior of 1-4 and the spectroelectrochemistry of the dinuclear species 2-4 have been investigated. The usual 3MLCT (metal-to-ligand charge transfer) decay, characterized by relatively long lifetimes on the ns timescale, takes place in 1 and 3, whose lowest-energy level involves a {(bpy)2Ru(dntpz)}2+ unit, whereas for 2 and 4, whose lowest-energy excited state involves a 3MLCT centered on the {(I)(ttb-terpy)Ru(μ-dntpz)}+ subunit, the excited-state lifetimes are on the ps timescale, possibly involving population of a low-lying 3MC (metal-centered) level. Compound 2 also exhibits a fast process, with a time constant of 170 fs, which is attributed to intercomponent energy transfer from the MLCT state centered in the {(bpy)2Ru(μ-dntpz)}2+ unit to the MLCT state involving the {(I)(ttb-terpy)Ru(μ-dntpz)}+ unit. Both the intercomponent energy transfer and the MLCT-to-MC activation process take place from non-equilibrated MLCT states.
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Affiliation(s)
- Francesco Nastasi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM, sezione di Messina), 98166 Messina, Italy
| | - Antonio Santoro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM, sezione di Messina), 98166 Messina, Italy
| | - Scolastica Serroni
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM, sezione di Messina), 98166 Messina, Italy
| | - Sebastiano Campagna
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM, sezione di Messina), 98166 Messina, Italy
| | - Nattawut Kaveevivitchai
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, USA
| | - Randolph P Thummel
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, USA
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Shan B, Nayak A, Williams OF, Yost DC, Polizzi NF, Liu Y, Zhou N, Kanai Y, Moran AM, Therien MJ, Meyer TJ. Excitation energy-dependent photocurrent switching in a single-molecule photodiode. Proc Natl Acad Sci U S A 2019; 116:16198-16203. [PMID: 31366631 PMCID: PMC6697812 DOI: 10.1073/pnas.1907118116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The direction of electron flow in molecular optoelectronic devices is dictated by charge transfer between a molecular excited state and an underlying conductor or semiconductor. For those devices, controlling the direction and reversibility of electron flow is a major challenge. We describe here a single-molecule photodiode. It is based on an internally conjugated, bichromophoric dyad with chemically linked (porphyrinato)zinc(II) and bis(terpyridyl)ruthenium(II) groups. On nanocrystalline, degenerately doped indium tin oxide electrodes, the dyad exhibits distinct frequency-dependent, charge-transfer characters. Variations in the light source between red-light (∼1.9 eV) and blue-light (∼2.7 eV) excitation for the integrated photodiode result in switching of photocurrents between cathodic and anodic. The origin of the excitation frequency-dependent photocurrents lies in the electronic structure of the chromophore excited states, as shown by the results of theoretical calculations, laser flash photolysis, and steady-state spectrophotometric measurements.
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Affiliation(s)
- Bing Shan
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Animesh Nayak
- Department of Chemistry, Duke University, Durham, NC 27708
| | - Olivia F Williams
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Dillon C Yost
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Nicholas F Polizzi
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
| | - Yanming Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Dalian University of Technology, 116024 Dalian, China
| | - Ninghao Zhou
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Yosuke Kanai
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Andrew M Moran
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | | | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599;
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Zou DH, Cui LN, Liu PY, Yang S, Zhu QY, Dai J. Molecular Model of Dye Sensitized Titanium Oxides Based on Aryl-Amine Dye Anchored Titanium Oxo Clusters. Inorg Chem 2019; 58:9246-9252. [DOI: 10.1021/acs.inorgchem.9b00945] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dan-Hong Zou
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Li-Na Cui
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Pei-Yi Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Shen Yang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Qin-Yu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Jie Dai
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
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Shan B, Brennaman MK, Troian-Gautier L, Liu Y, Nayak A, Klug CM, Li TT, Bullock RM, Meyer TJ. A Silicon-Based Heterojunction Integrated with a Molecular Excited State in a Water-Splitting Tandem Cell. J Am Chem Soc 2019; 141:10390-10398. [DOI: 10.1021/jacs.9b04238] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bing Shan
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - M. Kyle Brennaman
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Ludovic Troian-Gautier
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Yanming Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Dalian University of Technology, Dalian 116024, China
| | - Animesh Nayak
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Christina M. Klug
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-12, Richland, Washington 99352, United States
| | - Ting-Ting Li
- Research Center of Applied Solid State Chemistry, Ningbo University, Ningbo 315211, China
| | - R. Morris Bullock
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-12, Richland, Washington 99352, United States
| | - Thomas J. Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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Zou D, Yang F, Zhuang Q, Zhu M, Chen Y, You G, Lin Z, Zhen H, Ling Q. Perylene Diimide-Based Electron-Transporting Material for Perovskite Solar Cells with Undoped Poly(3-hexylthiophene) as Hole-Transporting Material. CHEMSUSCHEM 2019; 12:1155-1161. [PMID: 30633449 DOI: 10.1002/cssc.201802421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 01/05/2019] [Indexed: 06/09/2023]
Abstract
Perylene diimide-based small molecules are widely used as intermediates of liquid crystals, owing to their high planarity and electron mobility. In this study, tetrachloroperylene diimide (TCl-PDI) was used as a small-molecule replacement for TiO2 as electron-transporting material (ETM) for planar perovskite solar cells (PVSCs). Among hole-transporting materials (HTMs) for PVSCs, poly(3-hexylthiophene) (P3HT) gives the devices the highest stability and reproducibility. Therefore, PVSCs with the structure of indium tin oxide (ITO)/ETM/perovskite/P3HT/MoO3 /Ag were used to evaluate the performances of new ETMs. A reference device with compact TiO2 and P3HT gave a reasonable power conversion efficiency (PCE) of 12.78 %, whereas the PVSC with TCl-PDI as ETM gave an enhanced PCE of 14.73 %, which is among the highest reported values for PVSCs with undoped P3HT as the HTM. Moreover, TCl-PDI-based devices displayed higher stability than those based on compact TiO2 , owing to the superior perovskite quality.
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Affiliation(s)
- Ding Zou
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Fafu Yang
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Qixin Zhuang
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Mingguang Zhu
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Yunxiang Chen
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Guofeng You
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Zhenghuan Lin
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Hongyu Zhen
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
| | - Qidan Ling
- College of Chemistry and Materials Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P.R. China
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Zhou Q, Li TT, Wang J, Guo F, Zheng YQ. Hierarchical Cu2S NRs@CoS core-shell structure and its derivative towards synergistic electrocatalytic water splitting. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.183] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Shan B, Li TT, Brennaman MK, Nayak A, Wu L, Meyer TJ. Charge Transfer from Upconverting Nanocrystals to Semiconducting Electrodes: Optimizing Thermodynamic Outputs by Electronic Energy Transfer. J Am Chem Soc 2018; 141:463-471. [DOI: 10.1021/jacs.8b11110] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bing Shan
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Ting-Ting Li
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Research Center of Applied Solid State Chemistry, Ningbo University, Ningbo, Zhejiang 315211, China
| | - M. Kyle Brennaman
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Animesh Nayak
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Lei Wu
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Thomas J. Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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Sampaio RN, Troian‐Gautier L, Meyer GJ. A Charge‐Separated State that Lives for Almost a Second at a Conductive Metal Oxide Interface. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807627] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Renato N. Sampaio
- Department of Chemistry University of North Carolina at Chapel Hill Murray Hall 2202B, 123 South Road 27599-3290 North Carolina USA
| | - Ludovic Troian‐Gautier
- Department of Chemistry University of North Carolina at Chapel Hill Murray Hall 2202B, 123 South Road 27599-3290 North Carolina USA
| | - Gerald J. Meyer
- Department of Chemistry University of North Carolina at Chapel Hill Murray Hall 2202B, 123 South Road 27599-3290 North Carolina USA
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A Charge‐Separated State that Lives for Almost a Second at a Conductive Metal Oxide Interface. Angew Chem Int Ed Engl 2018; 57:15390-15394. [DOI: 10.1002/anie.201807627] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 07/25/2018] [Indexed: 11/07/2022]
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38
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Kaeffer N, Windle CD, Brisse R, Gablin C, Leonard D, Jousselme B, Chavarot-Kerlidou M, Artero V. Insights into the mechanism and aging of a noble-metal free H 2-evolving dye-sensitized photocathode. Chem Sci 2018; 9:6721-6738. [PMID: 30310606 PMCID: PMC6115630 DOI: 10.1039/c8sc00899j] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 07/06/2018] [Indexed: 12/25/2022] Open
Abstract
Co-grafting of a cobalt diimine–dioxime catalyst and push–pull organic dye on NiO yields a photocathode evolving hydrogen from aqueous solution under sunlight, with equivalent performances compared to a dyad-based architecture using similar components.
Dye-sensitized photo-electrochemical cells (DS-PECs) form an emerging technology for the large-scale storage of solar energy in the form of (solar) fuels because of the low cost and ease of processing of their constitutive photoelectrode materials. Preparing such molecular photocathodes requires a well-controlled co-immobilization of molecular dyes and catalysts onto transparent semiconducting materials. Here we used a series of surface analysis techniques to describe the molecular assembly of a push–pull organic dye and a cobalt diimine–dioxime catalyst co-grafted on a p-type NiO electrode substrate. (Photo)electrochemical measurements allowed characterization of electron transfer processes within such an assembly and to demonstrate for the first time that a CoI species is formed as the entry into the light-driven H2 evolution mechanism of a dye-sensitized photocathode. This co-grafted noble-metal free H2-evolving photocathode architecture displays similar performances to its covalent dye–catalyst counterpart based on the same catalytic moiety. Post-operando time-of-flight secondary ion mass spectrometry (ToF-SIMS) analysis of these photoelectrodes after extensive photoelectrochemical operation suggested decomposition pathways of the dye and triazole linkage used to graft the catalyst onto NiO, providing grounds for the design of optimized molecular DS-PEC components with increased robustness upon turnover.
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Affiliation(s)
- Nicolas Kaeffer
- Laboratoire de Chimie et Biologie des Métaux , Université Grenoble Alpes , CNRS UMR 5249, CEA , 17 rue des Martyrs , F-38054 Grenoble , Cedex , France . ; http://www.solhycat.com
| | - Christopher D Windle
- Laboratoire de Chimie et Biologie des Métaux , Université Grenoble Alpes , CNRS UMR 5249, CEA , 17 rue des Martyrs , F-38054 Grenoble , Cedex , France . ; http://www.solhycat.com
| | - Romain Brisse
- Laboratory of Innovation in Surface Chemistry and Nanosciences (LICSEN) , NIMBE , CEA , CNRS , Université Paris-Saclay , CEA Saclay , 91191 Gif-sur-Yvette , Cedex , France
| | - Corinne Gablin
- Univ Lyon , CNRS , Université Claude Bernard Lyon 1 , ENS de Lyon , Institut des Sciences Analytiques , UMR 5280, 5, rue de la Doua , F-69100 Villeurbanne , France
| | - Didier Leonard
- Univ Lyon , CNRS , Université Claude Bernard Lyon 1 , ENS de Lyon , Institut des Sciences Analytiques , UMR 5280, 5, rue de la Doua , F-69100 Villeurbanne , France
| | - Bruno Jousselme
- Laboratory of Innovation in Surface Chemistry and Nanosciences (LICSEN) , NIMBE , CEA , CNRS , Université Paris-Saclay , CEA Saclay , 91191 Gif-sur-Yvette , Cedex , France
| | - Murielle Chavarot-Kerlidou
- Laboratoire de Chimie et Biologie des Métaux , Université Grenoble Alpes , CNRS UMR 5249, CEA , 17 rue des Martyrs , F-38054 Grenoble , Cedex , France . ; http://www.solhycat.com
| | - Vincent Artero
- Laboratoire de Chimie et Biologie des Métaux , Université Grenoble Alpes , CNRS UMR 5249, CEA , 17 rue des Martyrs , F-38054 Grenoble , Cedex , France . ; http://www.solhycat.com
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Lundy R, Draper ER, Walsh JJ. Amino acid appended perylene bisimides: self-assembly, immobilization on nanocrystalline TiO2, and electrochromic properties. NEW J CHEM 2018. [DOI: 10.1039/c8nj04214d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium dioxide (TiO2) nanoparticle films have been used as a conducting support for the immobilisation of alanine-appended perylene bisimides (PBI-A) via dip-coating and carboxylate chemisorption.
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Affiliation(s)
- Ross Lundy
- AMBER & CRANN
- School of Chemistry
- Trinity College Dublin
- Dublin 2
- Ireland
| | | | - James J. Walsh
- National Centre for Sensor Research
- Dublin City University
- Dublin 9
- Ireland
- School of Chemical Sciences
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