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Mulkapuri S, Siddikha A, Ravi A, Saha P, Kumar AV, Boodida S, Vithal M, Das SK. Electrocatalytic Hydrogen Evolution by a Uranium(VI) Polyoxometalate: an Environmental Toxin for Sustainable Energy Generation. Inorg Chem 2023; 62:19664-19676. [PMID: 37967464 DOI: 10.1021/acs.inorgchem.3c03018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
The uranyl ion (UO2)2+, a uranium nuclear waste, is one of the serious contaminants in our ecosystem because of its radioactivity, relevant human activities, and highly mobile and complex nature of living cells. In this article, we have reported the synthesis and structural characterization of an uranyl cation-incorporated polyoxometalate (POM) compound, K10[{K4(H2O)6}{UO2}2(α-PW9O34)2]·13H2O (1), in which the uranyl cations are complexed with an in situ generated [α-PW9O34]9- cluster. Single-crystal X-ray diffraction (SCXRD) analysis of compound 1 reveals that the uranyl-potassium complex cationic species, [{K4(H2O)6}{UO2}2]8+, is sandwiched by two [α-PW9O34]9- clusters resulting in a Dawson type of POM. Compound 1 was further characterized by inductively coupled plasma optical emission spectroscopy (ICP-OES) analysis and infrared (IR), Raman, electronic absorption, and solid-state photoluminescence spectral studies. IR stretching vibrations at 895 and 856 cm-1 and the Raman signature peak at 792 cm-1 in the IR and Raman spectra of compound 1 primarily confirm the presence of a trans-[O═U═O]2+ ion. The solid-state photoluminescence spectrum of 1 exhibits a typical vibronic structure, resulting from symmetrical vibrations of [O═U═O]2+ bands, corresponding to the electronic transitions of S11 → S10 and S10 → S0υ (υ = 0-3). Interestingly, title compound 1 shows efficient electrocatalytic hydrogen evolution by water reduction with low Tafel slope values of 186.59 and 114.83 mV dec-1 at 1 mA cm-2 along with optimal Faradaic efficiency values of 82 and 87% at neutral pH and in acidic pH 3, respectively. Detailed electrochemical analyses reveal that the catalytic hydrogen evolution reaction (HER) activity mediated by compound 1 is associated with the UVI/UV redox couple of the POM. The microscopic as well as routine spectral analyses of postelectrode samples and controlled experiments have confirmed that compound 1 behaves like a true molecular electrocatalyst for the HER. To our knowledge, this is the first paradigm of a uranium-containing polyoxometalate that exhibits electrocatalytic water reduction to molecular H2. In a nutshell, an environmental toxin (a uranium-oxo compound) has been demonstrated to be utilized as an efficient electrocatalyst for hydrogen generation from water, a green approach of sustainable energy production.
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Affiliation(s)
- Sateesh Mulkapuri
- School of Chemistry, University of Hyderabad, P. O. Central University, Hyderabad 500046, India
| | - Asha Siddikha
- School of Chemistry, University of Hyderabad, P. O. Central University, Hyderabad 500046, India
- Department of Chemistry, JNTUH University College of Engineering, Science and Technology, Hyderabad 500085, India
- Department of Chemistry, Osmania University, Hyderabad 500 007, India
| | - Athira Ravi
- School of Chemistry, University of Hyderabad, P. O. Central University, Hyderabad 500046, India
| | - Pinki Saha
- School of Chemistry, University of Hyderabad, P. O. Central University, Hyderabad 500046, India
| | - Avulu Vinod Kumar
- School of Chemistry, University of Hyderabad, P. O. Central University, Hyderabad 500046, India
| | - Sathyanarayana Boodida
- Department of Chemistry, JNTUH University College of Engineering, Science and Technology, Hyderabad 500085, India
| | - Muga Vithal
- Department of Chemistry, Osmania University, Hyderabad 500 007, India
| | - Samar K Das
- School of Chemistry, University of Hyderabad, P. O. Central University, Hyderabad 500046, India
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Dey A, Guha A, Kumar V, Bawari S, Narayanan TN, Chandrasekhar V. Facile water oxidation by dinuclear mixed-valence Co III/Co II complexes: the role of coordinated water. Dalton Trans 2021; 50:14257-14263. [PMID: 34553710 DOI: 10.1039/d1dt01910d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rational design of a catalyst using earth abundant transition metals that can facilitate the smooth O-O bond formation is crucial for developing efficient water oxidation catalysts. The coordination environment around the metal ion of the catalyst plays a pivotal role in this context. We have chosen dinuclear mixed-valence CoIIICoII complexes of the general formula of [CoIIICoII(LH2)2(X)(H2O)] (X = OAc or Cl) which bear a coordinated water molecule in the primary coordination sphere. We anticipated that the water molecule in the primary sphere can take part in the proton coupled electron transfer (PCET) mechanism which can accelerate the facile formation of the O-O bond under strong alkaline conditions (1 M NaOH). To understand the role of the coordinated water molecule we have generated an analogous complex, [CoIIICoII(LH2)2(o-vanillin)] (o-vanillin = 2-hydroxy-3-methoxybenzaldehyde), without coordinated water. Interestingly, we have found that the water coordinated complexes show better oxygen evolution reaction (OER) activity and stability.
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Affiliation(s)
- Atanu Dey
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500107, India.
| | - Anku Guha
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500107, India.
| | - Vierandra Kumar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500107, India.
| | - Sumit Bawari
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500107, India.
| | | | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad-500107, India. .,Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India.
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Roy A, Kang KM, Nah YC, La M, Choi D, Park SJ. Improved electrocatalytic water oxidation with cobalt hydroxide nano-flakes supported on copper-modified nickel foam. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138368] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Wu R, Bi C, Zhang X, Wang J, Wang L, Fan C, Wang M, Shao F, Li N, Zong Z, Fan Y. Construction of two cobalt based bi-functional metal-organic frameworks for enhancing electrocatalytic water oxidation and photocatalytic disposals of hazardous aromatic dyes. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mukhopadhyay S, Basu O, Das SK. ZIF‐8 MOF Encapsulated Co‐porphyrin, an Efficient Electrocatalyst for Water Oxidation in a Wide pH Range: Works Better at Neutral pH. ChemCatChem 2020. [DOI: 10.1002/cctc.202000804] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Subhabrata Mukhopadhyay
- School of Chemistry University of Hyderabad P.O. – Central University Hyderabad 500046 India
| | - Olivia Basu
- School of Chemistry University of Hyderabad P.O. – Central University Hyderabad 500046 India
| | - Samar K. Das
- School of Chemistry University of Hyderabad P.O. – Central University Hyderabad 500046 India
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Mukherji A, Bal R, Srivastava R. Understanding the Co : Mo Compositional Modulation and Fe‐Interplay in Multicomponent Sulfide Electrocatalysts for Oxygen and Hydrogen Evolution Reactions. ChemElectroChem 2020. [DOI: 10.1002/celc.202000314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Aniruddha Mukherji
- Catalysis Research Laboratory, Department of ChemistryIndian Institute of Technology Ropar Rupnagar- 140001, Punjab India
| | - Rajaram Bal
- Catalytic Conversion and Process DivisionCSIR – Indian Institute of Petroleum Haridwar Road, Mohkampur Dehradun 248005 Uttarakhand India
| | - Rajendra Srivastava
- Catalysis Research Laboratory, Department of ChemistryIndian Institute of Technology Ropar Rupnagar- 140001, Punjab India
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Mukhopadhyay S, Basu O, Nasani R, Das SK. Evolution of metal organic frameworks as electrocatalysts for water oxidation. Chem Commun (Camb) 2020; 56:11735-11748. [DOI: 10.1039/d0cc03659e] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The development of metal organic framework based water oxidation catalysts is discussed here in connection with various design strategies.
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Affiliation(s)
| | - Olivia Basu
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
| | - Rajendar Nasani
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
| | - Samar K. Das
- School of Chemistry
- University of Hyderabad
- Hyderabad-500046
- India
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Singh C, Mukhopadhyay S, Das SK. Polyoxometalate-Supported Bis(2,2′-bipyridine)mono(aqua)nickel(II) Coordination Complex: an Efficient Electrocatalyst for Water Oxidation. Inorg Chem 2018; 57:6479-6490. [DOI: 10.1021/acs.inorgchem.8b00541] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Chandani Singh
- School of Chemistry, University of Hyderabad, Hyderabad-500046, India
| | | | - Samar K. Das
- School of Chemistry, University of Hyderabad, Hyderabad-500046, India
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Devi B, Venkateswarulu M, Kushwaha HS, Halder A, Koner RR. A Polycarboxyl-Decorated FeIII-Based Xerogel-Derived Multifunctional Composite (Fe3O4/Fe/C) as an Efficient Electrode Material towards Oxygen Reduction Reaction and Supercapacitor Application. Chemistry 2018; 24:6586-6594. [DOI: 10.1002/chem.201705232] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Bandhana Devi
- School of Basic Sciences; Indian Institute of Technology Mandi; Himachal Pradesh 175005 India
| | - Mangili Venkateswarulu
- School of Basic Sciences; Indian Institute of Technology Mandi; Himachal Pradesh 175005 India
| | - Himmat Singh Kushwaha
- School of Engineering; Indian Institute of Technology Mandi; Himachal Pradesh 175005 India
| | - Aditi Halder
- School of Basic Sciences; Indian Institute of Technology Mandi; Himachal Pradesh 175005 India
| | - Rik Rani Koner
- School of Engineering; Indian Institute of Technology Mandi; Himachal Pradesh 175005 India
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Mukhopadhyay S, Debgupta J, Singh C, Kar A, Das SK. A Keggin Polyoxometalate Shows Water Oxidation Activity at Neutral pH: POM@ZIF-8, an Efficient and Robust Electrocatalyst. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711920] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - Aranya Kar
- School of Chemistry; University of Hyderabad; India
| | - Samar K. Das
- School of Chemistry; University of Hyderabad; India
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Mukhopadhyay S, Debgupta J, Singh C, Kar A, Das SK. A Keggin Polyoxometalate Shows Water Oxidation Activity at Neutral pH: POM@ZIF-8, an Efficient and Robust Electrocatalyst. Angew Chem Int Ed Engl 2018; 57:1918-1923. [DOI: 10.1002/anie.201711920] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Indexed: 11/05/2022]
Affiliation(s)
| | | | | | - Aranya Kar
- School of Chemistry; University of Hyderabad; India
| | - Samar K. Das
- School of Chemistry; University of Hyderabad; India
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Kundu S, Malik B, Prabhakaran A, Pattanayak DK, Pillai VK. Topotactic transition of α-Co(OH)2 to β-Co(OH)2 anchored on CoO nanoparticles during electrochemical water oxidation: synergistic electrocatalytic effects. Chem Commun (Camb) 2017; 53:9809-9812. [DOI: 10.1039/c7cc06086f] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synergistic effect of a β-Co(OH)2–CoO hybrid in enhancing the electrocatalytic activity for water oxidation.
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Affiliation(s)
- Sumana Kundu
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
- Academy of Scientific & Innovative Research
- Chennai
| | | | | | - Deepak K. Pattanayak
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
- Academy of Scientific & Innovative Research
- Chennai
| | - Vijayamohanan K. Pillai
- CSIR-Central Electrochemical Research Institute
- Karaikudi
- India
- Academy of Scientific & Innovative Research
- Chennai
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