1
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Nayak P, Singh AK, Nayak M, Kar S, Sahu K, Meena K, Topwal D, Indra A, Kar S. Structural modification of nickel tetra(thiocyano)corroles during electrochemical water oxidation. Dalton Trans 2024; 53:14922-14932. [PMID: 39194402 DOI: 10.1039/d4dt01628a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
In this study, we present two fully characterized nickel tetrathiocyanocorroles, representing a novel class of 3d-metallocorroles. These nickel(II) ions form square planar complexes, exhibiting a d8-electronic configuration. These anionic complexes are stabilized by the electron-withdrawing SCN groups on the bipyrrole unit of the corrole. The reduced aromaticity in these anionic nickel(II) corrole complexes is evidenced by single crystal X-ray diffraction (XRD) data and a markedly altered absorption profile, with stronger Q bands compared to Soret bands. Notably, the UV-Vis and electrochemical data exhibit significant differences from previously reported nickel(II) corrole radical cation and nickel(II) porphyrin complexes. While these electrochemical data bear a resemblance to those of the anionic nickel(II) corrole by Gross et al., the UV-Vis data show substantial distinctions. Additionally, we explore the utilization of nickel(II)-corrole@CC (where CC denotes carbon cloth) as an electrocatalyst for the oxygen evolution reaction (OER) in an alkaline medium. During electrochemical water oxidation, the molecular catalyst is partially converted to nickel (oxy)hydroxide, Ni(O)OH. The structure reveals the coexistence of the molecular complex and Ni(O)OH in the active catalyst, achieving a turnover frequency (TOF) of 3.32 × 10-2 s-1. The synergy between the homogeneous and heterogeneous phases improves the OER activity, providing more active sites and edge sites and enhancing interfacial charge transfer.
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Affiliation(s)
- Panisha Nayak
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar - 752050, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
| | - Ajit Kumar Singh
- Department of Chemistry, IIT(BHU), Varanasi, Uttar Pradesh-221005, India.
| | - Manisha Nayak
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar - 752050, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
| | - Subhajit Kar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar - 752050, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
| | - Kasturi Sahu
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar - 752050, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
| | - Kiran Meena
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar - 752050, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
| | - Dinesh Topwal
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
- Institute of Physics, Bhubaneswar 751005, India
| | - Arindam Indra
- Department of Chemistry, IIT(BHU), Varanasi, Uttar Pradesh-221005, India.
| | - Sanjib Kar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar - 752050, India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400 094, India.
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2
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Shimizu T, Wang H, Wakamatsu K, Ohkata S, Tanifuji N, Yoshikawa H. Electrochemically driven physical properties of solid-state materials: action mechanisms and control schemes. Dalton Trans 2024. [PMID: 39041779 DOI: 10.1039/d4dt01532k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
The various physical properties recently induced by solid-state electrochemical reactions must be comprehensively understood, and their mechanisms of action should be elucidated. Reversible changes in conductivity, magnetism, and colour have been achieved by combining the redox reactions of d metal ions and organic materials, as well as the molecular and crystal structures of solids. This review describes the electrochemically driven physical properties of conductors, magnetic materials, and electrochromic materials using various electrochemical devices.
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Affiliation(s)
- Takeshi Shimizu
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan.
| | - Heng Wang
- College of New Energy, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Katsuhiro Wakamatsu
- Department of Materials Science, School of Engineering Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan.
| | - Shunsuke Ohkata
- Department of Materials Science, School of Engineering Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan.
| | - Naoki Tanifuji
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan.
| | - Hirofumi Yoshikawa
- Department of Materials Science, School of Engineering Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan.
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3
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Kosasang S, Ma N, Impeng S, Bureekaew S, Namiki Y, Tsujimoto M, Saothayanun T, Yamada H, Horike S. Prussian Blue Analogue Glasses for Photoinduced CO 2 Conversion. J Am Chem Soc 2024; 146:17793-17800. [PMID: 38913361 DOI: 10.1021/jacs.4c03149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Crystal-to-glass transformation is a powerful approach to modulating the chemical and physical properties of crystals. Here we demonstrate that the glass transformation of cobalt hexacyanoferrate crystals, one of the Prussian blue analogues, increased the concentration of open metal sites and altered the electronic state while maintaining coordination geometries and short-range ordering in the structure. The compositional and structural changes were characterized by X-ray absorption fine structure, energy dispersive X-ray spectroscopy, and X-ray total scattering. The changes contribute to the flat band potential of the glass becoming closer to the redox potential of CO2 reduction. The valence band energy of the glass also shifts, resulting in lower band gap energy. Both the increased open metal sites and the optimal electronic structure upon vitrification enhance photocatalytic activity toward CO2-to-CO conversions (9.9 μmol h-1 CO production) and selectivity (72.4%) in comparison with the crystalline counterpart (3.9 μmol h-1 and 42.8%).
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Affiliation(s)
- Soracha Kosasang
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Nattapol Ma
- Center for Membrane Separations, Adsorption, Catalysis &; Spectroscopy (cMACS), KU Leuven, Celestijnenlaan 200 F Box 2454, 3001 Leuven, Belgium
| | - Sarawoot Impeng
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Sareeya Bureekaew
- Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Yuji Namiki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- Frontier Research Center, POLA Chemical Industries, Inc., Kashio-cho, Totsuka-ku, Yokohama, Kanagawa 244-0812, Japan
| | - Masahiko Tsujimoto
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan
| | - Taya Saothayanun
- Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
| | - Hiroki Yamada
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan
| | - Satoshi Horike
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
- Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand
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4
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Lv C, Chen L, Bai J, Ruo H, Pan Y, Xu S, Chen J, Zhang D, Guo C. Ni-Co hexacyanoferrate hollow nanoprism with CN vacancy for electrocatalytic benzyl alcohol oxidation. Chem Commun (Camb) 2024; 60:5952-5955. [PMID: 38764428 DOI: 10.1039/d4cc01606h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
An innovative method to improve the oxidation efficiency of benzyl alcohol utilizes Ni-Co hexacyanoferrate hollow nanoprisms. Synthesized via a gentle self-sacrificial template method, this catalyst exhibits substantial catalytic activity and selectivity towards benzyl alcohol oxidation, facilitated by the strategic incorporation of Co to modulate CN vacancy density. Impressively, it achieves a current density of 10 mA cm-2 at 1.33 V and a remarkable 98% efficiency in benzyl alcohol conversion at 1.4 V.
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Affiliation(s)
- Chenghang Lv
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Liang Chen
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Jingjing Bai
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Hongyu Ruo
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Yanlong Pan
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Shoudong Xu
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Jiaqi Chen
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Ding Zhang
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Chunli Guo
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
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5
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Peighambardoust N, Sadigh Akbari S, Lomlu R, Aydemir U, Karadas F. Tunable Photocatalytic Activity of CoFe Prussian Blue Analogue Modified SrTiO 3 Core-Shell Structures for Solar-Driven Water Oxidation. ACS MATERIALS AU 2024; 4:214-223. [PMID: 38496046 PMCID: PMC10941283 DOI: 10.1021/acsmaterialsau.3c00090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/21/2023] [Accepted: 11/28/2023] [Indexed: 03/19/2024]
Abstract
This study presents a pioneering semiconductor-catalyst core-shell architecture designed to enhance photocatalytic water oxidation activity significantly. This innovative assembly involves the in situ deposition of CoFe Prussian blue analogue (PBA) particles onto SrTiO3 (STO) and blue SrTiO3 (bSTO) nanocubes, effectively establishing a robust p-n junction, as demonstrated by Mott-Schottky analysis. Of notable significance, the STO/PB core-shell catalyst displayed remarkable photocatalytic performance, achieving an oxygen evolution rate of 129.6 μmol g-1 h-1, with stability over an extended 9-h in the presence of S2O82- as an electron scavenger. Thorough characterization unequivocally verified the precise alignment of the band energies within the STO/PB core-shell assembly. Our research underscores the critical role of tailored semiconductor-catalyst interfaces in advancing the realm of photocatalysis and its broader applications in renewable energy technologies.
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Affiliation(s)
- Naeimeh
Sadat Peighambardoust
- Koç
University Boron and Advanced Materials Application and Research Center
(KUBAM), Sariyer, Istanbul - 34450, Türkiye
| | - Sina Sadigh Akbari
- Department
of Chemistry, Faculty of Science, Bilkent
University, Ankara - 06800, Türkiye
| | - Rana Lomlu
- Department
of Chemistry, Faculty of Science, Bilkent
University, Ankara - 06800, Türkiye
| | - Umut Aydemir
- Koç
University Boron and Advanced Materials Application and Research Center
(KUBAM), Sariyer, Istanbul - 34450, Türkiye
- Department
of Chemistry, Koç University, Sariyer, Istanbul - 34450, Türkiye
| | - Ferdi Karadas
- Department
of Chemistry, Faculty of Science, Bilkent
University, Ankara - 06800, Türkiye
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6
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Chalil Oglou R, Ulusoy Ghobadi TG, Saylam A, Bese D, Bese C, Yaglioglu HG, Ozcubukcu S, Ozbay E, Karadaş F. Rational design of an acceptor-chromophore-relay-catalyst tetrad assembly for water oxidation. Chem Commun (Camb) 2024; 60:1707-1710. [PMID: 38189085 DOI: 10.1039/d3cc05565e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
We report the step-by-step synthesis of a precious metal-free acceptor-chromophore-relay-catalyst tetrad assembly that exhibits a turnover frequency (TOF) of 7.5 × 10-3 s-1 under neutral conditions. Transient absorption spectroscopic studies indicate that upon fullerenol incorporation into the investigated complexes, charge separation efficiency increases considerably.
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Affiliation(s)
- Ramadan Chalil Oglou
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
| | | | - Aytul Saylam
- Department of Chemistry, Middle East Technical University, Ankara, 06800, Turkey
| | - Damla Bese
- Department of Engineering Physics, Faculty of Engineering, Ankara University, Beşevler, 06100, Ankara, Turkey
| | - Cagri Bese
- Department of Physics Engineering, Hacettepe University, 06800 Beytepe, Ankara, Turkey
| | - Halime Gul Yaglioglu
- Department of Engineering Physics, Faculty of Engineering, Ankara University, Beşevler, 06100, Ankara, Turkey
| | - Salih Ozcubukcu
- Department of Chemistry, Middle East Technical University, Ankara, 06800, Turkey
| | - Ekmel Ozbay
- Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Turkey
- Department of Physics, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Ferdi Karadaş
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey.
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7
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Gerhards L, Wittstock G. Unidirectional Current in Layered Metal Hexacyanometallate Thin Films: Implication for Alternative Wet-Processed Electronic Materials. ACS OMEGA 2023; 8:44139-44147. [PMID: 38027322 PMCID: PMC10666236 DOI: 10.1021/acsomega.3c06447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023]
Abstract
Rectifying behavior of alternative electronic materials is demonstrated with layered structures of a crystalline coordination network whose mixed ionic and electronic conductivity can be manipulated by switching the redox state of coordinated transition-metal ions. The coordinated transition-metal ions can convey additional functionality such as (redox)catalysis or electrochromism. In order to obtain rectifying behavior and charge trapping, layered films of such materials are explored. Specifically, layered films of iron hexacyanoruthenate (Fe-HCR) and nickel hexacyanoferrate (Ni-HCF) were formed by the combination of different deposition procedures. They comprise electrodeposition during voltammetric cycles for Fe-HCR and Ni-HCF, layer-by-layer deposition of Ni-HCF without redox chemistry, and drop casting of presynthesized Ni-HCF nanoparticles. The obtained materials were structurally characterized by X-ray diffraction analysis, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy for nanoparticles, and scanning force microscopy (SFM). Voltammetry in 1 mol L-1 KCl and current-voltage curves (I-V curves) recorded between a conductive SFM tip and the back electrode outside of an electrolyte solution demonstrated charge trapping and rectifying behavior based on the different formal potentials of the redox centers in the films.
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Affiliation(s)
- Lena Gerhards
- School of Mathematics and Science,
Institute of Chemistry, Carl von Ossietzky
University of Oldenburg, 26111 Oldenburg, Germany
| | - Gunther Wittstock
- School of Mathematics and Science,
Institute of Chemistry, Carl von Ossietzky
University of Oldenburg, 26111 Oldenburg, Germany
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8
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Chalil Oglou R, Ulusoy Ghobadi TG, Hegner FS, Galán-Mascarós JR, López N, Ozbay E, Karadas F. Manipulating Intermetallic Charge Transfer for Switchable External Stimulus-Enhanced Water Oxidation Electrocatalysis. Angew Chem Int Ed Engl 2023; 62:e202308647. [PMID: 37498680 DOI: 10.1002/anie.202308647] [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: 06/19/2023] [Revised: 07/21/2023] [Accepted: 07/26/2023] [Indexed: 07/29/2023]
Abstract
Electrocatalytic processes involving the oxygen evolution reaction (OER) present a kinetic bottleneck due to the existence of linear-scaling relationships, which bind the energies of the different intermediates in the mechanism limiting optimization. Here, we offer a way to break these scaling relationships and enhance the electrocatalytic activity of a Co-Fe Prussian blue modified electrode in OER by applying external stimuli. Improvements of ≈11 % and ≈57 % were achieved under magnetic field (0.2 T) and light irradiation (100 mW cm-2 ), respectively, when working at fixed overpotential, η=0.6 V at pH 7. The observed enhancements strongly tie in with the intermetallic charge transfer (IMCT) intensity between Fe and Co sites. Density Functional Theory simulations suggest that tuning the IMCT can lead to a change of the OER mechanism to an external stimuli-sensitive spin crossover-based pathway, which opens the way for switchable electrocatalytic devices.
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Affiliation(s)
- Ramadan Chalil Oglou
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
| | | | | | - José Ramón Galán-Mascarós
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology (BIST), 43007, Tarragona, Spain
- ICREA, The Barcelona Institute of Science and Technology (BIST), 08010, Barcelona, Spain
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology (BIST), 43007, Tarragona, Spain
| | - Ekmel Ozbay
- NANOTAM-Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
- Department of Electrical and Electronics Engineering, Department of Physics, Bilkent University, 06800, Ankara, Turkey
| | - Ferdi Karadas
- Department of Chemistry, Faculty of Science, Bilkent University, 06800, Ankara, Turkey
- UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey
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9
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Tootoonchian P, Kwiczak-Yiğitbaşı J, Turab Ali Khan M, Chalil Oglou R, Holló G, Karadas F, Lagzi I, Baytekin B. A Dormant Reagent Reaction-Diffusion Method for the Generation of Co-Fe Prussian Blue Analogue Periodic Precipitate Particle Libraries. Chemistry 2023; 29:e202301261. [PMID: 37098116 DOI: 10.1002/chem.202301261] [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: 04/20/2023] [Revised: 04/24/2023] [Accepted: 04/24/2023] [Indexed: 04/27/2023]
Abstract
Liesegang patterns that develop as a result of reaction-diffusion can simultaneously form products with slightly different sizes spatially separated in a single medium. We show here a reaction-diffusion method using a dormant reagent (citrate) for developing Liesegang patterns of cobalt hexacyanoferrate Prussian Blue analog (PBA) particle libraries. This method slows the precipitation reaction and produces different-sized particles in a gel medium at different locations. The gel-embedded particles are still catalytically active. Finally, the applicability of the new method to other PBAs and 2D systems is presented. The method proves promising for obtaining similar inorganic framework libraries with catalytic abilities.
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Affiliation(s)
| | | | | | | | - Gábor Holló
- ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, H-1111, Budapest, Hungary
| | - Ferdi Karadas
- Department of Chemistry, Bilkent University, Ankara, 06800, Turkey
- UNAM, Bilkent University, Ankara, 06800, Turkey
| | - István Lagzi
- ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, H-1111, Budapest, Hungary
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, H-1111, Budapest, Hungary
| | - Bilge Baytekin
- Department of Chemistry, Bilkent University, Ankara, 06800, Turkey
- UNAM, Bilkent University, Ankara, 06800, Turkey
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10
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Wang LC, Chiou PY, Hsu YP, Lee CL, Hung CH, Wu YH, Wang WJ, Hsieh GL, Chen YC, Chang LC, Su WP, Manoharan D, Liao MC, Thangudu S, Li WP, Su CH, Tian HK, Yeh CS. Prussian blue analog with separated active sites to catalyze water driven enhanced catalytic treatments. Nat Commun 2023; 14:4709. [PMID: 37543632 PMCID: PMC10404294 DOI: 10.1038/s41467-023-40470-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/28/2023] [Indexed: 08/07/2023] Open
Abstract
Chemodynamic therapy (CDT) uses the Fenton or Fenton-like reaction to yield toxic ‧OH following H2O2 → ‧OH for tumoral therapy. Unfortunately, H2O2 is often taken from the limited endogenous supply of H2O2 in cancer cells. A water oxidation CoFe Prussian blue (CFPB) nanoframes is presented to provide sustained, external energy-free self-supply of ‧OH from H2O to process CDT and/or photothermal therapy (PTT). Unexpectedly, the as-prepared CFPB nanocubes with no near-infrared (NIR) absorption is transformed into CFPB nanoframes with NIR absorption due to the increased Fe3+-N ≡ C-Fe2+ composition through the proposed proton-induced metal replacement reactions. Surprisingly, both the CFPB nanocubes and nanoframes provide for the self-supply of O2, H2O2, and ‧OH from H2O, with the nanoframe outperforming in the production of ‧OH. Simulation analysis indicates separated active sites in catalyzation of water oxidation, oxygen reduction, and Fenton-like reactions from CFPB. The liposome-covered CFPB nanoframes prepared for controllable water-driven CDT for male tumoral mice treatments.
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Affiliation(s)
- Liu-Chun Wang
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Pei-Yu Chiou
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Ya-Ping Hsu
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Chin-Lai Lee
- Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833, Taiwan
| | - Chih-Hsuan Hung
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Yi-Hsuan Wu
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Wen-Jyun Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Gia-Ling Hsieh
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Ying-Chi Chen
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Li-Chan Chang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, 704, Taiwan
| | - Wen-Pin Su
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, 704, Taiwan
- Departments of Oncology and Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 704, Taiwan
| | - Divinah Manoharan
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Min-Chiao Liao
- Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833, Taiwan
| | - Suresh Thangudu
- Center for General Education, Chang Gung University, Taoyuan, 333, Taiwan
| | - Wei-Peng Li
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Center of Applied Nanomedicine, National Cheng Kung University, Tainan, 701, Taiwan.
| | - Chia-Hao Su
- Center for General Education, Chang Gung University, Taoyuan, 333, Taiwan.
- Department of Biomedical Imaging and Radiological Sciences, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan.
- Department of Radiation Oncology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833, Taiwan.
- Institute for Radiological Research, Chang Gung University, Taoyuan, 333, Taiwan.
| | - Hong-Kang Tian
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 701, Taiwan.
- Program on Smart and Sustainable Manufacturing, Academy of Innovative Semiconductor and Sustainable Manufacturing, National Cheng Kung University, Tainan, 701, Taiwan.
- Hierarchical Green-Energy Materials Research Center, National Cheng Kung University, Tainan, 701, Taiwan.
| | - Chen-Sheng Yeh
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan.
- Center of Applied Nanomedicine, National Cheng Kung University, Tainan, 701, Taiwan.
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11
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Qiao X, Qiu Y, Xin J, Chen D, Ma Z, Corkett AJ, Cai G, Cai G, Qu S, Wang Y, Zhu Z, Gao Y, Wang Z, Dronskowski R, Li G, Sun J. Synthesis, crystal structures and semiconducting properties of new hexacyanidometallates. Dalton Trans 2023; 52:3971-3980. [PMID: 36880672 DOI: 10.1039/d3dt00384a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
We describe the synthesis, crystal structure and semiconducting properties of a number of hexacyanidometallates with the formula A2[MFe(CN)6]·xH2O (A = Na, K; M = Mg, Ca, Sr and Ba). All crystal structures were studied via single-crystal or powder X-ray diffraction. The unexpectedly low-symmetric structures in these ferrocyanides are described and contrasted with analogous transition-metal compounds which have been reported to be strictly or nearly cubic. The amount of crystal water in the structure for powder samples was determined by the thermogravimetric analysis (TGA), supported by IR and Raman spectroscopy. Electronic-structure calculations of K2[MgFe(CN)6] and K2[CaFe(CN)6] are compared with experimental UV-Vis measurements. The large band gaps by advanced theory indicate that the smaller experimental band gaps are due to surface effects of impurity states. Mott-Schottky curves of K2[MgFe(CN)6], K2[CaFe(CN)6] and K2[BaFe(CN)6]·3H2O exhibit positive slopes, which characterizes these compounds as n-type semiconductors.
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Affiliation(s)
- Xianji Qiao
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Yi Qiu
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Junjie Xin
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Da Chen
- Chair of Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, Aachen 52056, Germany. .,Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, China
| | - Zili Ma
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui, China
| | - Alex J Corkett
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, China
| | - Guohong Cai
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Guanqun Cai
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Shangqing Qu
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - YuChao Wang
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China. .,College of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, China
| | - Zhenyu Zhu
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Yiman Gao
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Zhigang Wang
- Hanon Advanced Technology Group Co., Ltd., HanYuJinGu Business Center, No.7000 Jingshi Road, Hi-Tech Development Zone, Jinan 250100, China
| | - Richard Dronskowski
- Chair of Solid-State and Quantum Chemistry, Institute of Inorganic Chemistry, RWTH Aachen University, Aachen 52056, Germany. .,Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, China
| | - Guobao Li
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
| | - Junliang Sun
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing 100871, China.
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12
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Dhanasekaran T, Bovas A, Radhakrishnan TP. Hydrogel Polymer-PBA Nanocomposite Thin Film-Based Bifunctional Catalytic Electrode for Water Splitting: The Unique Role of the Polymer Matrix in Enhancing the Electrocatalytic Efficiency. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6687-6696. [PMID: 36695812 DOI: 10.1021/acsami.2c18006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A novel approach to efficient bifunctional catalytic electrodes for water splitting is developed, based on a counterintuitive choice of an insulating hydrogel polymer (chitosan, CS)-Prussian blue analogue (PBA, KCoFe) nanocomposite thin film on nickel foam. The polymer matrix in KCoFe-CS enables the formation of framelike structures of the non-noble metal-based catalyst nanocrystals, in addition to improving their stability. An optimized cycling protocol leads to a substantial enhancement of the electrocatalytic efficiency for oxygen evolution reaction (OER) as well as hydrogen evolution reaction (HER), achieving relatively low overpotentials of 272 and 320 mV (@ 10 and 20 mA cm-2) and 146 mV (@ 10 mA cm-2), respectively, reduced Tafel slopes, and increased Faradaic efficiencies of 98 and 96%; the overpotentials estimated based on the electrochemically active surface area show similar trends. The polymer encapsulation and the cycling protocol are key to the realization of the desirable combination of enhanced efficiency and stability demonstrated up to 50 h for both OER and HER. Detailed characterizations of the postcycling catalytic electrode show that favorable morphological changes of the polymer matrix with concomitant reduction in the PBA nanocrystal size lead to the enhanced activity. The bifunctional activity of the catalytic electrode is demonstrated by the stable water splitting achieved with a 20 mA cm-2 current density at 1.55 V. The present study unravels the utility of hydrogel polymer matrices (without the use of binders like Nafion) in realizing sustainable water splitting electrocatalysts with high stability and efficiency, through the combined effect of confining the electrolyte within and favorably modifying the catalyst nanoparticles and the nanocomposite morphology.
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Affiliation(s)
| | - Anu Bovas
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - T P Radhakrishnan
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
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13
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Tabe H, Seki Y, Yamane M, Nakazono T, Yamada Y. Synergistic Effect of Fe II and Mn II Ions in Cyano-Bridged Heterometallic Coordination Polymers on Catalytic Selectivity of Benzene Oxygenation to Phenol. J Phys Chem Lett 2023; 14:158-163. [PMID: 36579843 DOI: 10.1021/acs.jpclett.2c02939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A cyano-bridged heterometallic coordination polymer with partial deficiencies of CN- ligands, [MnII(H2O)8/3]3/2[FeII(CN)5(NH3)], forms open metal sites both on MnII and FeII ions by liberation of monodentate ligands such as NH3 and H2O. [MnII(H2O)8/3]3/2[FeII(CN)5(NH3)] exhibits high catalytic activity and selectivity of benzene oxygenation to phenol in the presence of m-chloroperoxybenzoic acid as an oxidant. The postcatalytic spectroscopy of [MnII(H2O)8/3]3/2[FeII(CN)5(NH3)] and catalysis comparison with a physical mixture of [MnII(H2O)3]2[FeII(CN)6] and [Fe(H2O)3/2]4/3[Fe(CN)6], which has open metal sites on both MnII and Fe ions separately, indicated that the high activity resulted from high oxidation ability and phenol adsorption ability of FeII and MnII ions, respectively.
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Affiliation(s)
- Hiroyasu Tabe
- Institute for Integrated Cell-Material Sciences (iCeMS), Institute for Advanced Study (IAS), Kyoto University, Yoshida-Hommachi, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yusuke Seki
- Department of Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Mari Yamane
- Department of Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Takashi Nakazono
- Research Center for Artificial Photosynthesis (ReCAP), Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Yusuke Yamada
- Department of Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- Research Center for Artificial Photosynthesis (ReCAP), Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
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14
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Cai M, Liu Y, Wang C, Lin W, Li S. Novel Cd0.5Zn0.5S/Bi2MoO6 S-scheme heterojunction for boosting the photodegradation of antibiotic enrofloxacin: Degradation pathway, mechanism and toxicity assessment. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122401] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Long X, Wang B, Zhang X, Mao X, Li J, Luo Z, Qian D, Li J, Liu J. Disruptive Strategy To Fabricate Three-Dimensional Ultrawide Interlayer Porous Carbon Framework-Supported Prussian Blue Nanocubes: A Carrier for NiFe-Layered Double-Hydroxide toward Oxygen Evolution. Inorg Chem 2022; 61:19624-19632. [DOI: 10.1021/acs.inorgchem.2c03586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Xuanda Long
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Bowen Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xinxin Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xichen Mao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Jie Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Ziyu Luo
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Dong Qian
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Junhua Li
- College of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China
| | - Jinlong Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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16
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Binder-Free Fabrication of Prussian Blue Analogues Based Electrocatalyst for Enhanced Electrocatalytic Water Oxidation. Molecules 2022; 27:molecules27196396. [PMID: 36234933 PMCID: PMC9571080 DOI: 10.3390/molecules27196396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/13/2022] [Accepted: 09/21/2022] [Indexed: 11/16/2022] Open
Abstract
Developing a cost-effective, efficient, and stable oxygen evolution reaction (OER) catalyst is of great importance for sustainable energy conversion and storage. In this study, we report a facile one-step fabrication of cationic surfactant-assisted Prussian blue analogues (PBAs) Mx[Fe(CN)5CH3C6H4NH2]∙yC19H34NBr abbreviated as SF[Fe-Tol-M] (where SF = N-tridecyl-3-methylpyridinium bromide and M = Mn, Co and Ni) as efficient heterogeneous OER electrocatalysts. The electrocatalysts have been characterized by Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) coupled with energy dispersive X-ray (EDX) analysis, and X-ray photoelectron spectroscopy (XPS). In the presence of cationic surfactant (SF), PBAs-based electrodes showed enhanced redox current, high surface area and robust stability compared to the recently reported PBAs. SF[Fe-Tol-Co] hybrid catalyst shows superior electrochemical OER activity with a much lower over-potential (610 mV) to attain the current density of 10 mA cm−2 with the Tafel slope value of 103 mV·dec−1 than that for SF[Fe-Tol-Ni] and SF[Fe-Tol-Mn]. Moreover, the electrochemical impedance spectroscopy (EIS) unveiled that SF[Fe-Tol-Co] exhibits smaller charge transfer resistance, which results in a faster kinetics towards OER. Furthermore, SF[Fe-Tol-Co] offered excellent stability for continues oxygen production over extended reaction time. This work provides a surface assisted facile electrode fabrication approach for developing binder-free OER electrocatalysts for efficient water oxidation.
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17
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Ahmad AA, Ulusoy Ghobadi TG, Ozbay E, Karadas F. 2D Network overtakes 3D for photocatalytic hydrogen evolution. Chem Commun (Camb) 2022; 58:9341-9344. [PMID: 35880477 DOI: 10.1039/d2cc02912j] [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
3-Dimensional (3D) cyanide coordination polymers, typically known as Prussian blue Analogues (PBAs), have received great attention in catalysis due to their stability, easily tuned metal sites, and porosity. However, their high crystallinities and relatively low number of surface-active sites significantly hamper their intrinsic catalytic activities. Herein, we report the utilization of a 2-dimensional (2D) layered cobalt tetracyanonickelate, [Co-Ni], for the reduction of protons to H2. Relying on its exposed facets, layered morphology, and abundant surface-active sites, [Co-Ni] can efficiently convert water and sunlight to H2 in the presence of a ruthenium photosensitizer (Ru PS) with an optimal evolution rate of 30 029 ± 590 μmol g-1 h-1, greatly exceeding that of 3D Co-Fe PBA [Co-Fe] and Co-Co PBA [Co-Co]. Furthermore, [Co-Ni] retains its structural integrity throughout a 6 hour photocatalytic cycle, which is confirmed by XPS, PXRD, and Infrared analysis. This recent work reveals the excellent morphologic properties that promote [Co-Ni] as an attractive catalyst for the hydrogen evolution reaction (HER).
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Affiliation(s)
- Aliyu Aremu Ahmad
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey.
| | | | - Ekmel Ozbay
- NANOTAM-Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey.,Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Turkey.,Department of Physics, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Ferdi Karadas
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey. .,UNAM-National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
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18
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Chen F, Yan X, Hu X, Feng R, Li T, Li X, Zhao G. Enhanced catalytic reduction of p-nitrophenol and azo dyes on copper hexacyanoferrate nanospheres decorated copper foams. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 314:115075. [PMID: 35436705 DOI: 10.1016/j.jenvman.2022.115075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/26/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Catalytic reduction of nitroaromatic compounds using low-cost non-precious metal containing catalyst remains an essential topic in wastewater treatment. Herein, copper hexacyanoferrate nanospheres decorated copper foams (CF) were prepared by a facile method, and it was used as structured catalysts for the reduction of p-nitrophenol (p-NP) and azo dyes. The catalyst obtained by calcination at 200 °C shows the highest catalytic activity, with an almost complete reduction of p-NP within 3 min with a rate of 2.057 min-1 at room temperature, and it exhibited excellent reusability in successive 6 cycles. The effects of temperature, initial concentration, pH, and flow rate on p-NP reduction were investigated. Moreover, the mechanistic investigation revealed that fast electron transfer ability and enhanced adsorption for p-NP contributed to its enhanced catalytic performances. This work put forward an efficient approach for the construction of structured catalysts with enhanced performance in catalytic reduction applications.
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Affiliation(s)
- Fei Chen
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, School of Chemical Engineering & Technology, China University of Mining and Technology, XuZhou, 221116, PR China
| | - Xinlong Yan
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, School of Chemical Engineering & Technology, China University of Mining and Technology, XuZhou, 221116, PR China.
| | - Xiaoyan Hu
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, School of Chemical Engineering & Technology, China University of Mining and Technology, XuZhou, 221116, PR China
| | - Rui Feng
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, School of Chemical Engineering & Technology, China University of Mining and Technology, XuZhou, 221116, PR China
| | - Tianbo Li
- Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, School of Chemical Engineering & Technology, China University of Mining and Technology, XuZhou, 221116, PR China
| | - Xiaobing Li
- National Center for Coal Preparation and Purification Engineering Research, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, PR China.
| | - Guofeng Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, People's Republic of China
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19
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Chalil Oglou R, Ulusoy Ghobadi TG, Ozbay E, Karadas F. "Plug and Play" Photosensitizer-Catalyst Dyads for Water Oxidation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21131-21140. [PMID: 35482427 PMCID: PMC9100495 DOI: 10.1021/acsami.2c01102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
We present a simple and easy-to-scale synthetic method to plug common organic photosensitizers into a cyanide-based network structure for the development of photosensitizer-water oxidation catalyst (PS-WOC) dyad assemblies for the photocatalytic water oxidation process. Three photosensitizers, one of which absorbs red light similar to P680 in photosystem II, were utilized to harvest different regions of the solar spectrum. Photosensitizers are covalently coordinated to CoFe Prussian blue structures to prepare PS-WOC dyads. All dyads exhibit steady water oxidation catalytic activities throughout a 6 h photocatalytic experiment. Our results demonstrate that the covalent coordination between the PS and WOC group not only enhances the photocatalytic activity but also improves the robustness of the organic PS group. The photocatalytic activity of "plug and play" dyads relies on several structural and electronic parameters, including the position of the energy levels of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) of the PS with respect to the HOMO level of the catalytic site, the intensity and wavelength of the absorption band of the PS, and the number of catalytic sites.
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Affiliation(s)
- Ramadan Chalil Oglou
- UNAM—National
Nanotechnology Research Center, Bilkent
University, 06800 Ankara, Turkey
| | | | - Ekmel Ozbay
- NANOTAM—Nanotechnology
Research Center, Bilkent University, 06800 Ankara, Turkey
- Department
of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Turkey
- Department
of Physics, Faculty of Science Bilkent University, 06800 Ankara, Turkey
| | - Ferdi Karadas
- UNAM—National
Nanotechnology Research Center, Bilkent
University, 06800 Ankara, Turkey
- Department
of Chemistry, Faculty of Science, Bilkent
University, 06800 Ankara, Turkey
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20
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Khasevani SG, Nikjoo D, Ojwang DO, Nodari L, Sarmad S, Mikkola JP, Rigoni F, Concina I. The beauty of being complex: Prussian blue analogues as selective catalysts and photocatalysts in the degradation of ciprofloxacin. J Catal 2022. [DOI: 10.1016/j.jcat.2022.04.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Ahmad AA, Ulusoy Ghobadi TG, Buyuktemiz M, Ozbay E, Dede Y, Karadas F. Light-Driven Water Oxidation with Ligand-Engineered Prussian Blue Analogues. Inorg Chem 2022; 61:3931-3941. [PMID: 35200012 PMCID: PMC8905577 DOI: 10.1021/acs.inorgchem.1c03531] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The
elucidation of the ideal coordination environment
of a catalytic site has been at the heart of catalytic
applications. Herein, we show that the water oxidation
activities of catalytic cobalt sites in a Prussian blue
(PB) structure could be tuned systematically by
decorating its coordination sphere with a combination of cyanide
and bidentate pyridyl groups. K0.1[Co(bpy)]2.9[Fe(CN)6]2 ([Cobpy–Fe]), K0.2[Co(phen)]2.8[Fe(CN)6]2 ([Cophen–Fe]), {[Co(bpy)2]3[Fe(CN)6]2}[Fe(CN)6]1/3 ([Cobpy2–Fe]), and {[Co(phen)2]3[Fe(CN)6]2}[Fe(CN)6]1/3 Cl0.11 ([Cophen2–Fe]) were prepared by introducing bidentate pyridyl groups (phen:
1,10-phenanthroline, bpy: 2,2′-bipyridine) to the common synthetic
protocol of Co–Fe Prussian blue analogues. Characterization
studies indicate that [Cobpy2–Fe] and [Cophen2–Fe] adopt a pentanuclear molecular structure, while [Cobpy–Fe] and [Cophen–Fe] could be described as cyanide-based
coordination polymers with lower-dimensionality and less crystalline
nature compared to the regular Co–Fe Prussian blue analogue
(PBA), K0.1Co2.9[Fe(CN)6]2 ([Co–Fe]). Photocatalytic studies reveal that
the activities of [Cobpy–Fe] and [Cophen–Fe] are significantly enhanced compared to those of [Co–Fe], while molecular [Cobpy2–Fe] and [Cophen2–Fe] are inactive toward water oxidation. [Cobpy–Fe] and [Cophen–Fe] exhibit upper-bound turnover
frequencies (TOFs) of 1.3 and 0.7 s–1, respectively,
which are ∼50 times higher than that of [Co–Fe] (1.8 × 10–2 s–1). The complete
inactivity of [Cobpy2–Fe] and [Cophen2–Fe] confirms the critical role of aqua coordination to the catalytic
cobalt sites for oxygen evolution reaction (OER). Computational
studies show that bidentate pyridyl groups enhance the susceptibility
of the rate-determining Co(IV)-oxo species to the nucleophilic water
attack during the critical O–O bond formation. This study opens
a new route toward increasing the intrinsic water oxidation activity
of the catalytic sites in PB coordination polymers. Bidentate pyridyl groups are coordinated
to the catalytic
cobalt sites in a cyanide-based Co−Fe structure to afford well-tuned
extended network structures, which exhibit an outstanding photocatalytic
performance compared to the regular Co−Fe PBA.
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Affiliation(s)
- Aliyu A Ahmad
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | | | - Muhammed Buyuktemiz
- Department of Chemistry, Faculty of Science, Gazi University Teknikokullar, 06500 Ankara, Turkey
| | - Ekmel Ozbay
- NANOTAM─Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey.,Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Turkey.,Department of Physics, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Yavuz Dede
- Department of Chemistry, Faculty of Science, Gazi University Teknikokullar, 06500 Ankara, Turkey
| | - Ferdi Karadas
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey.,UNAM─National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
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22
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Avila Y, Acevedo-Peña P, Reguera L, Reguera E. Recent progress in transition metal hexacyanometallates: From structure to properties and functionality. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214274] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Sadigh Akbari S, Karadas F. Selective Photocatalytic CO2 Reduction by Cobalt Dicyanamide. Dalton Trans 2022; 51:12569-12575. [DOI: 10.1039/d2dt01606k] [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
Photocatalytic conversion of CO2 into chemical fuels is a promising approach to tackle carbon emission and global warming. Herein, we promote a cobalt dicyanamide coordination compound, Co-dca, for the first...
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24
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Chalil Oglou R, Ulusoy Ghobadi TG, Ozbay E, Karadas F. Electrodeposited cobalt hexacyanoferrate electrode as a non-enzymatic glucose sensor under neutral conditions. Anal Chim Acta 2021; 1188:339188. [PMID: 34794574 DOI: 10.1016/j.aca.2021.339188] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/05/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Abstract
A CoFe Prussian blue analogue (CoFe PB) modified FTO electrode, prepared via a facile electrodeposition method, is investigated as a non-enzymatic glucose sensor under neutral conditions. The electrode exhibits a linear detection of glucose in the 0.1-8.2 mmol/L range with a detection limit of 67 μM, a sensitivity of 18.69 μA/mM.cm2, and a fast response time of less than 7 s under neutral conditions. Its stability is confirmed with both electrochemical experiments and characterization studies performed on the pristine and post-mortem electrode. We also conducted a comprehensive electrochemical analysis to elucidate the identity of the active site and the glucose oxidation mechanism on the Prussian blue surface.
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Affiliation(s)
- Ramadan Chalil Oglou
- UNAM - National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey
| | | | - Ekmel Ozbay
- NANOTAM - Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey; Department of Electrical and Electronics Engineering, Bilkent University, Ankara, 06800, Turkey; Department of Physics, Faculty of Science Bilkent University, 06800, Ankara, Turkey
| | - Ferdi Karadas
- UNAM - National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Turkey; Department of Chemistry, Faculty of Science, Bilkent University, 06800, Ankara, Turkey.
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25
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Gonzálvez MA, Bernhardt PV, Font-Bardia M, Gallen A, Jover J, Ferrer M, Martínez M. Molecular Approach to Alkali-Metal Encapsulation by a Prussian Blue Analogue Fe II/Co III Cube in Aqueous Solution: A Kineticomechanistic Exchange Study. Inorg Chem 2021; 60:18407-18422. [PMID: 34766767 PMCID: PMC8715505 DOI: 10.1021/acs.inorgchem.1c03001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The preparation of a series of alkali-metal inclusion complexes of the molecular cube [{CoIII(Me3-tacn)}4{FeII(CN)6}4]4- (Me3-tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane), a mixed-valent Prussian Blue analogue bearing bridging cyanido ligands, has been achieved by following a redox-triggered self-assembly process. The molecular cubes are extremely robust and soluble in aqueous media ranging from 5 M [H+] to 2 M [OH-]. All the complexes have been characterized by the standard mass spectometry, UV-vis, inductively coupled plasma, multinuclear NMR spectroscopy, and electrochemistry. Furthermore, X-ray diffraction analysis of the sodium and lithium salts has also been achieved, and the inclusion of moieties of the form {M-OH2}+ (M = Li, Na) is confirmed. These inclusion complexes in aqueous solution are rather inert to cation exchange and are characterized by a significant decrease in acidity of the confined water molecule due to hydrogen bonding inside the cubic cage. Exchange of the encapsulated cationic {M-OH2}+ or M+ units by other alkali metals has also been studied from a kineticomechanistic perspective at different concentrations, temperatures, ionic strengths, and pressures. In all cases, the thermal and pressure activation parameters obtained agree with a process that is dominated by differences in hydration of the cations entering and exiting the cage, although the size of the portal enabling the exchange also plays a determinant role, thus not allowing the large Cs+ cation to enter. All the exchange substitutions studied follow a thermodynamic sequence that relates with the size and polarizing capability of the different alkali cations; even so, the process can be reversed, allowing the entry of {Li-OH2}+ units upon adsorption of the cube on an anion exchange resin and subsequent washing with a Li+ solution.
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Affiliation(s)
- Miguel A Gonzálvez
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia.,Secció de Química Inorgànica, Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Paul V Bernhardt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Mercè Font-Bardia
- Unitat de Difracció de Raigs, X. Centre Científic i Tecnològic,Departament de Cristal·lografia, and Mineralogia i Dipòsits Minerals, Facultat de Geologia, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Albert Gallen
- Secció de Química Inorgànica, Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Jesús Jover
- Secció de Química Inorgànica, Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.,Institut de Química Teòrica i Computacional, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Montserrat Ferrer
- Secció de Química Inorgànica, Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.,Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Manuel Martínez
- Secció de Química Inorgànica, Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.,Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
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Zou H, Liu X, Wang K, Duan Y, Wang C, Zhang B, Zhou K, Yu D, Gan LY, Zhou X. Constructing highly active Co sites in Prussian blue analogues for boosting electrocatalytic water oxidation. Chem Commun (Camb) 2021; 57:8011-8014. [PMID: 34286711 DOI: 10.1039/d1cc02224e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
High-valence cobalt sites are considered as highly active centers for the oxygen evolution reaction (OER) and their corresponding construction is thus of primary importance in the pursuit of outstanding performance. Herein, we report the design and facile synthesis of abundant high-valence cobalt sites by introducing Zn2+ into CoFe Prussian blue analogues (PBAs). The modification results in the drastic morphological transformation from a pure phase (CoFe-PBA) to a three-phase composite (CoFeZn-PBA), with a significant increase not only the amount of highly oxidized Co sites but the specific surface area (by up to 4 times). Moreover, the obtained sample also exhibits outstanding electric conductivity. Consequently, an excellent OER performance with an overpotential of 343 mV@10 mA cm-2 and a Tafel slope of 75 mV dec-1 was achieved in CoFeZn-PBA, which outperforms the commercial IrO2 catalyst. Further analysis reveals that CoFeZn-PBA becomes (oxyhydr)oxides after the OER.
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Affiliation(s)
- Hanjun Zou
- College of Physics and State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 401331, China.
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