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Ejsmont A, Darvishzad T, Słowik G, Stelmachowski P, Goscianska J. Cobalt-based MOF-derived carbon electrocatalysts with tunable architecture for enhanced oxygen evolution reaction. J Colloid Interface Sci 2024; 653:1326-1338. [PMID: 37801843 DOI: 10.1016/j.jcis.2023.09.172] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/17/2023] [Accepted: 09/28/2023] [Indexed: 10/08/2023]
Abstract
Development of the hydrogen economy requires the design of catalysts that increase the rate of the accompanying sluggish kinetic oxygen evolution reaction (OER). This is a key process in electrochemical energy conversion and storage, such as water splitting and metal-air batteries. The OER needs high overpotential and typically expensive precious metal-based catalysts. Therefore, designing low-cost and efficient electrocatalysts for OER is of paramount importance. In addition to focusing on the number of active sites or high specific surface area, the correlation between catalyst particle shape and performance should be considered. This work presents an electrocatalytic activity comparison of cobalt-containing carbons with different morphologies in the OER process. Employing metal-organic frameworks as carbon and metal precursors, the materials in the shape of polyhedrons, needles, unique spherical hedgehogs, and sea urchins were obtained. The effect of MOF template infiltration with additional carbon source on the physicochemical properties of electrocatalysts was also examined. The furfuryl alcohol-impregnated needle-shaped particles were characterized by a high content of cobalt active sites, surrounded by nitrogen-containing graphite layers. Electrochemical tests confirmed their best activity (overpotential 317 mV@10 mA/cm2), long stability (up to 20 h), as well as low reagents diffusion limitations (Tafel slope 57 mV/dec up to 24 mA/cm2). The vertically aligned structure of the catalyst contributed to improved detachment of the oxygen bubbles produced.
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Affiliation(s)
- Aleksander Ejsmont
- Adam Mickiewicz University, Faculty of Chemistry, Department of Chemical Technology, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Termeh Darvishzad
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland
| | - Grzegorz Słowik
- Maria Curie-Sklodowska University in Lublin, Faculty of Chemistry, Maria Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
| | - Pawel Stelmachowski
- Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387 Krakow, Poland
| | - Joanna Goscianska
- Adam Mickiewicz University, Faculty of Chemistry, Department of Chemical Technology, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
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Wan Z, Zhang Y, Ren Q, Li X, Yu H, Zhou W, Ma X, Xuan C. Interface engineering of NiS/NiCo 2S 4 heterostructure with charge redistribution for boosting overall water splitting. J Colloid Interface Sci 2024; 653:795-806. [PMID: 37751675 DOI: 10.1016/j.jcis.2023.09.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 09/28/2023]
Abstract
Developing highly efficient bifunctional non-noble metal-based electrocatalysts is pivotal to fulfilling practical water electrolysis. In this work, NiS/NiCo2S4 heterostructured electrocatalysts are prepared through a simply controlling sulfurization process by employing a one-pot solvothermal strategy. The alteration of cobalt addition amount can affect the crystalline phase, morphology, and catalytic activity of the resulting heterostructured materials. The successful integration of NiS with NiCo2S4 is realized by deliberately tuning the cobalt addition amount. The resulting Co-Ni-S5:1 delivers high activity with low overpotentials of 198 and 259 mV to attain 10 mA cm-2 when used as electrocatalysts toward hydrogen evolution reaction and oxygen evolution reaction, respectively. Experimental and theoretical calculations evidence the strong interface coupling between NiS and NiCo2S4 leads to increased electronic conductivity, electron migration near lattice-matched interface and interfacial charge redistribution, thereof enhancing the reaction kinetics rate and activity. Moreover, the potential application is demonstrated by employing Co-Ni-S5:1 in a two-electrode electrolyzer which can efficiently catalyze water electrolysis and work stably for 100 h. This work not only provides highly efficient bifunctional heterostructured electrocatalysts by simply regulating the metal components in sulfides but also further broadens the application of interface engineering.
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Affiliation(s)
- Zhenwei Wan
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Yueqi Zhang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Qinglin Ren
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Xueru Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Haitao Yu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Wenkai Zhou
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Xinbin Ma
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China
| | - Cuijuan Xuan
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, PR China.
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Kumar R, Chhikara BS, Er Zeybekler S, Gupta DS, Kaur G, Chhillar M, Aggarwal AK, Rahdar A. Nanotoxicity of multifunctional stoichiometric cobalt oxide nanoparticles (SCoONPs) with repercussions toward apoptosis, necrosis, and cancer necrosis factor (TNF-α) at nano-biointerfaces. Toxicol Res (Camb) 2023; 12:716-740. [PMID: 37915472 PMCID: PMC10615831 DOI: 10.1093/toxres/tfad086] [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: 01/06/2023] [Revised: 08/11/2023] [Accepted: 09/03/2023] [Indexed: 11/03/2023] Open
Abstract
Introduction Apoptosis, necrosis, and cancer necrosis factor (TNF-a) are all impacted by the nanotoxicity of multifunctional stoichiometric cobalt oxide nanoparticles (SCoONPs) at nano-biointerfaces. The creation of multi-functional nanoparticles has had a considerable impact on the transport of drugs and genes, nanotheranostics (in-vivo imaging, concurrent diagnostics), interventions for external healing, the creation of nano-bio interfaces, and the instigation of desired changes in nanotherapeutics. Objectives The quantitative structure-activity relationships, chemical transformations, biological interactions as well as toxicological analyses are considered as main objectives. Discrete dimensions of SCoNPs-cell interaction interfaces, their characteristic physical features (size, shape, shell structure, and surface chemistry), impact on cell proliferation and differentiation are the key factors responsible for nanotoxicity. Methods The development of multi-functional nanoparticles has been significant in drug/gene delivery, nanotheranostics (in-vivo imaging, coinciding diagnostics), and external healing interventions, designing a nano-bio interface, as well as inciting desired alterations in nanotherapeutics. Every so often, the cellular uptake of multi-functional cobalt [Co, CoO, Co2(CO)8 and Co3O4] nanoparticles (SCoONPs) influences cellular mechanics and initiates numerous repercussions (oxidative stress, DNA damage, cytogenotoxicity, and chromosomal damage) in pathways, including the generation of dysregulating factors involved in biochemical transformations. Results The concerns and influences of multifunctional SCoNPs on different cell mechanisms (mitochondria impermeability, hydrolysis of ATP, the concentration of Ca2+, impaired calcium clearance, defective autophagy, apoptosis, and necrosis), and interlinked properties (adhesion, motility, and internalization dynamics, role in toxicity, surface hydrophilic and hydrophobicity, biokinetics and biomimetic behaviors of biochemical reactions) have also been summarized. SCoONPs have received a lot of interest among the nanocarriers family because of its advantageous qualities such as biodegradability, biocompatibility, nontoxicity, and nonimmunogenicity. Conclusion Various applications, such as bio-imaging, cell labeling, gene delivery, enhanced chemical stability, and increased biocompatibility, concerning apoptosis, necrosis, and nano-bio interfaces, along with suitable examples. In this analysis, the multi-functional cobalt [Co, CoO, Co2(CO)8 and Co3O4] nanoparticles (SCoNPs) intricacies (cytogenotoxicity, clastogenicity, and immunomodulatory), nanotoxicity, and associated repercussions have been highlighted and explained.
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Affiliation(s)
- Rajiv Kumar
- University of Delhi, Mall Road, New Delhi 110007, India
| | - Bhupender S Chhikara
- Department of Chemistry, Aditi Mahavidyalaya, University of Delhi, Auchandi Road, Bawana, Delhi 110039, India
| | - Simge Er Zeybekler
- Biochemistry Department, Faculty of Science, Ege University, Hastanesi 9/3A 35100 Bornova-Izmir 35100, Turkey
| | - Dhruv Sanjay Gupta
- Department of Pharmacology, SPP School of Pharmacy & Technology Management, SVKM’s NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai 400056, India
| | - Ginpreet Kaur
- Department of Pharmacology, SPP School of Pharmacy & Technology Management, SVKM’s NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai 400056, India
| | | | - Anil K Aggarwal
- Department of Chemistry, Shivaji College, University of Delhi, Ring Road, Raja Garden, New Delhi 110027, India
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Sistan va Baluchestan, Zabol 538-98615, Iran
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Tanwar D, Jain P, Ahluwalia D, Sudheendranath A, Thomas SP, Ingole PP, Kumar U. A novel cobalt(ii) acetate complex bearing lutidine ligand: a promising electrocatalyst for oxygen evolution reaction. RSC Adv 2023; 13:24450-24459. [PMID: 37588977 PMCID: PMC10426729 DOI: 10.1039/d3ra04709a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 08/07/2023] [Indexed: 08/18/2023] Open
Abstract
Developing cost-effective electrocatalysts using earth-abundant metal as an alternative to expensive precious metal catalyst remains a key challenge for researchers. Several strategies are being researched/tested for making low-cost transition metal complexes with controlled electron-density and coordination flexibility around the metal center to enhance their catalytic activity. Herein, we report a novel lutidine coordinated cobalt(ii) acetate complex [(3,5-lutidine)2Co(OAc)2(H2O)2] (1) as a promising electrocatalyst for oxygen evolution reaction (OER). Complex 1 was characterized by FT-IR, elemental analysis, and single crystal X-ray diffraction data. The structure optimization of complex 1 was also done using DFT calculation and the obtained geometrical parameters were found to be in good agreement with the parameters obtained from the solid state structure obtained through single crystal X-ray diffraction data. Further, the molecular electrostatic potential (MEP) maps analysis of complex 1 observed electron rich centers that were found to be in agreement with the solid-state structure. It was understood that the coordination of lutidine as a Lewis base and acetate moiety as a flexible ligand will provide more coordination flexibility around the metal center to facilitate the catalytic reaction. Further, the electron rich centers around metal center will also support the enhancement of their catalytic activity. Complex 1 shows impressive OER activity, even better than the state-of-the-art IrO2 catalyst, in terms of turnover frequency (TOF: 0.05) and onset potential (1.50 V vs. RHE). The TOF for complex 1 is two and half times higher, while the onset potential is ca. 20 mV lower, than the benchmark IrO2 catalyst studied under identical conditions.
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Affiliation(s)
- Deepika Tanwar
- Catalysis and Bioinorganic Research Lab, Department of Chemistry, Deshbandhu College, University of Delhi New Delhi-110019 India
- Department of Chemistry, University of Delhi New Delhi-110007 India
| | - Priya Jain
- Department of Chemistry, Indian Institute of Technology New Delhi-110016 India
| | - Deepali Ahluwalia
- Department of Applied Chemistry, Delhi Technological University New Delhi-110042 India
| | | | - Sajesh P Thomas
- Department of Chemistry, Indian Institute of Technology New Delhi-110016 India
| | - Pravin P Ingole
- Department of Chemistry, Indian Institute of Technology New Delhi-110016 India
| | - Umesh Kumar
- Catalysis and Bioinorganic Research Lab, Department of Chemistry, Deshbandhu College, University of Delhi New Delhi-110019 India
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Morphology-controlled NiFe2O4 nanostructures: influence of calcination temperature on structural, magnetic and catalytic properties towards OER. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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Kashyap V, Pandikassala A, Singla G, Khan TS, Ali Haider M, Vinod CP, Kurungot S. Unravelling faradaic electrochemical efficiencies over Fe/Co spinel metal oxides using surface spectroscopy and microscopy techniques. NANOSCALE 2022; 14:15928-15941. [PMID: 36268905 DOI: 10.1039/d2nr04170g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cobalt and iron metal-based oxide catalysts play a significant role in energy devices. To unravel some interesting parameters, we have synthesized metal oxides of cobalt and iron (i.e. Fe2O3, Co3O4, Co2FeO4 and CoFe2O4), and measured the effect of the valence band structure, morphology, size and defects in the nanoparticles towards the electrocatalytic hydrogen evolution reaction (HER), the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR). The compositional variations in the cobalt and iron precursors significantly alter the particle size from 60 to <10 nm and simultaneously the shape of the particles (cubic and spherical). The Tauc plot obtained from the solution phase ultraviolet (UV) spectra of the nanoparticles showed band gaps of 2.2, 2.3, 2.5 and 2.8 eV for Fe2O3, Co3O4, Co2FeO4 and CoFe2O4, respectively. Further, the valence band structure and work function analysis using ultraviolet photoelectron spectroscopy (UPS) and core level X-ray photoelectron spectroscopy (XPS) analyses provided better structural insight into metal oxide catalysts. In the Co3O4 system, the valence band structure favors the HER and Fe2O3 favors the OER. The composites Co2FeO4 and CoFe2O4 show a significant change in their core level (O 1s, Co 2p and Fe 2p spectra) and valence band structure. Co3O4 shows an overpotential of 370 mV against 416 mV for Fe2O3 at a current density of 2 mA cm-2 for the HER. Similarly, Fe2O3 shows an overpotential of 410 mV against the 435 mV for Co3O4 at a current density of 10 mA cm-2 for the OER. However, for the ORR, Co3O4 shows 70 mV improvement in the half-wave potential against Fe2O3. The composites (Co2FeO4 and CoFe2O4) display better performance compared to their respective parent oxide systems (i.e., Co3O4 and Fe2O3, respectively) in terms of the ORR half-wave potential, which can be attributed to the presence of the oxygen vacancies over the surface in these systems. This was further corroborated in density functional theory (DFT) simulations, wherein the oxygen vacancy formation on the surface of CoFe2O4(001) was calculated to be significantly lower (∼50 kJ mol-1) compared to Co3O4 (001). The band diagram of the nanoparticles constructed from the various spectroscopic measurements with work function and band gap provides in-depth understanding of the electrocatalytic process.
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Affiliation(s)
- Varchaswal Kashyap
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 41108, India.
- Academy of Scientific and Innovative Research, Postal Staff College Area, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh-201002, India
| | - Ajmal Pandikassala
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 41108, India.
- Academy of Scientific and Innovative Research, Postal Staff College Area, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh-201002, India
| | - Gourav Singla
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 41108, India.
| | - Tuhin Suvra Khan
- Nanocatalysis Area, Light Stock Processing Division, CSIR-Indian Institute of Petroleum, Dehradun 248005, Uttarakhand, India.
| | - M Ali Haider
- Renewable Energy and Chemicals Laboratory, Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, Delhi 110016, India
| | - C P Vinod
- Academy of Scientific and Innovative Research, Postal Staff College Area, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh-201002, India
- Catalysis and Inorganic Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 41108, India.
| | - Sreekumar Kurungot
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 41108, India.
- Academy of Scientific and Innovative Research, Postal Staff College Area, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh-201002, India
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Aromatic carboxylic acid derived bimetallic nickel/cobalt electrocatalysts for oxygen evolution reaction and hydrogen peroxide sensing applications. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116904] [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]
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8
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Bhanja P, Mohanty B, Paul B, Bhaumik A, Jena BK, Basu S. Novel microporous organic-inorganic hybrid metal phosphonates as electrocatalysts towards water oxidation reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140277] [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]
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9
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Niyitanga T, Kim H. Time-dependent oxidation of graphite and cobalt oxide nanoparticles as electrocatalysts for the oxygen evolution reaction. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Three-dimensional self-supporting catalyst with NiFe alloy/oxyhydroxide supported on high-surface cobalt hydroxide nanosheet array for overall water splitting. J Colloid Interface Sci 2022; 606:873-883. [PMID: 34428683 DOI: 10.1016/j.jcis.2021.08.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/19/2021] [Accepted: 08/03/2021] [Indexed: 01/07/2023]
Abstract
The development of available dual-function electrocatalysts is of great significance to the effective storage of excess electricity. Here, we obtained a three-dimensional Co(OH)2 nanosheet with high surface area on nickel foam (Co(OH)2/NF) via conventional hydrothermal. NiFe-coated Co(OH)2 nanosheet array (NiFe@Co(OH)2 NSAs/NF) was further constructed by electrodeposition for water splitting. By optimizing and regulating the deposition time, NiFe@Co(OH)2 NSAs/NF with a deposition time of 500 s (NiFe-500@Co(OH)2 NSAs/NF) only needs 98 mV of overpotential and can be stabilized for 100 h for hydrogen evolution at 10 mA cm-2 due to the rich density active components for NiFe alloy/oxyhydroxide layer and interaction with Co(OH)2 nanosheets. Thanks to the excellent 3D nanosheet array structure and the close integration between Co(OH)2 and the upper layer NiFe, NiFe@Co(OH)2 NSAs/NF with a deposition time of 200 s (NiFe-200@Co(OH)2 NSAs/NF) can provide 10 mA cm-2 with only 204 mV and maintain constant catalysis within 100 h. Therefore, the constructed NiFe@Co(OH)2 NSAs/NF (500||200) double-electrode cell for water splitting requires only 1.58 V drive potential and can maintain 24 h durability at 10 mA cm-2. The design of the catalyst opens up new ideas for the large-scale application of transition metals in water splitting.
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Solangi MY, Aftab U, Tahira A, Abro MI, Mazarro R, Morandi V, Nafady A, Medany SS, Infantes-Molina A, Ibupoto ZH. An efficient palladium oxide nanoparticles@Co3O4 nanocomposite with low chemisorbed species for enhanced oxygen evolution reaction. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2022; 47:3834-3845. [DOI: 10.1016/j.ijhydene.2021.11.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
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Roy O, Jana A, Pratihar B, Saha DS, De S. Graphene oxide wrapped Mix-valent cobalt phosphate hollow nanotubes as oxygen evolution catalyst with low overpotential. J Colloid Interface Sci 2021; 610:592-600. [PMID: 34848052 DOI: 10.1016/j.jcis.2021.11.112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/03/2021] [Accepted: 11/19/2021] [Indexed: 11/26/2022]
Abstract
Development of an efficient, stable and inexpensive catalyst for oxygen evolution reaction (OER) is critical to electrochemical water splitting. In this regard, a precious-metal free electrocatalyst has been synthesized employing a hydrothermal route. The prepared graphene oxide wrapped cobalt phosphate nanotubes deposited on Ni foam electrode shows a low overpotential of 234 mV at a current density of 10 mA/cm2 for OER in 1(M) KOH, lower than a benchmarking electrocatalyst IrO2 at the same current density. The performance figures clearly defy the volcano limitations. The mixed-valency induced delocalization of charge satisfies Sabatier Principle for ideal catalysts and graphene oxide ensures improved charge transfer. Moreover, the designed electrocatalyst performs efficiently even on prolonged use under mass transfer limitation conditions.
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Affiliation(s)
- Omkar Roy
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Animesh Jana
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Bitan Pratihar
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Dhriti S Saha
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Sirshendu De
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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Stienen C, Rogalla D, Prymak O, Bendt G. The Effect of the Degree of Fluorination on the MOCVD Growth of Cobalt Oxide Thin Films using Co(II) Acetylacetonate Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christian Stienen
- University Duisburg-Essen Institute for Inorganic Chemistry Universitätsstraße 5-7 45117 Essen Germany
| | | | - Oleg Prymak
- University Duisburg-Essen Institute for Inorganic Chemistry Universitätsstraße 5-7 45117 Essen Germany
| | - Georg Bendt
- University Duisburg-Essen Institute for Inorganic Chemistry Universitätsstraße 5-7 45117 Essen Germany
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Mayakannan M, Prabakar S, Vinoth E. Synthesis and characterizations of zinc-doped cobalt oxide nanoparticles and its antibacterial and antifungal activities. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1992431] [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]
Affiliation(s)
- M. Mayakannan
- PG & Research Department of Physics, Government Arts College, Thiruvalluvar University, Tiruvannamalai, Tamilnadu, India
| | - S. Prabakar
- Department of Physics, Siga College of Management and Computer Science, Thiruvalluvar University, Villupuram, Tamilnadu, India
| | - E. Vinoth
- PG & Research Department of Physics, Government Arts College, Thiruvalluvar University, Tiruvannamalai, Tamilnadu, India
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Akbayrak M, Önal AM. Metal oxides supported cobalt nanoparticles: Active electrocatalysts for oxygen evolution reaction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139053] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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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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