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Ren T, Yan L, Zhao Y. Acetate-assisted in situ electrodeposited β-MnO 2 for the fabrication of nano-architectonics for non-enzymatic glucose detection. RSC Adv 2024; 14:22359-22367. [PMID: 39010910 PMCID: PMC11247433 DOI: 10.1039/d4ra03930k] [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: 05/28/2024] [Accepted: 06/29/2024] [Indexed: 07/17/2024] Open
Abstract
Highly sensitive and low-cost electrocatalytic materials are of great importance for the commercial application of non-enzymatic glucose sensors. Herein, we fabricated a novel one-pot enzyme- and indicator-free method for the colorimetric sensing of blood glucose levels based on the direct redox reaction of β-MnO2/glucose. Owing to the introduction of ammonium acetate and the enhanced oxygen evolution reaction, the higher conductive β-MnO2 nanosheets with the larger surface area were directly grown in situ on the conductive substrate by a linear sweep voltammetry (LSV) electrodeposition method. Besides, owing to the unique tunnel-type pyrolusite MnO2, the electrolyte diffusion was facilitated and reduced the response time in the glucose detection process. Hence, the acetate-assisted MnO2 electrode exhibited a high sensitivity of 461.87 μA M-1 cm-2 toward glucose, a wide detection range from 1.0 μM to 1 mM, and a low detection limit of 0.47 μM while the electrode also maintained excellent selectivity and stability. These results clearly indicate that the new strategy we developed has great potential for practical applications.
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Affiliation(s)
- Tianbao Ren
- School of Business, Heze University Heze 274015
| | - Lijun Yan
- Department of Interior and Environmental Design, Pusan National University Pusan 46241 South Korea
| | - Yang Zhao
- Department of Urban and Regional Development, Hanyang University Seoul 04763 South Korea
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2
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Kaur R, Bhardwaj G, Singh N, Kaur N. Geometric Transformation of Modified Multiwalled Carbon Nanotubes-Based Heterometallic Nanostructured Material: A Model for the Electrochemical Discrimination of Insecticides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12911-12924. [PMID: 38691550 DOI: 10.1021/acs.langmuir.4c00515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Multifunctional carbon-based materials exhibit a large number of unprecedented active sites via an electron transfer process and act as a desired platform for exploring high-performance electroactive material. Herein, we exemplify the holistic design of a heterometallic nanostructured material (MWCNTs@KR-6/Mn/Sn/Pb) formed by the integration of metals (Mn2+, Sn2+, and Pb2+) and a dipodal ligand (KR-6) at the surface of multiwalled carbon nanotubes (MWCNTs). First, MWCNTs@KR-6 was readily synthesized via a noncovalent approach, which was further sequentially doped by Mn2+, Sn2+, and Pb2+ to give MWCNTs@KR-6/Mn/Sn/Pb. The designed material showed excellent electrochemical activity for the discrimination of insecticides belonging to structurally different classes. In contrast to that of the individual building components, both the stability and electrochemical activity of heterometallic nanostructured material were remarkably enhanced, resulting in a magnificent electrochemical performance of the developed material. Hence, the current work reports a comprehensive synthetic approach for MWCNTs@KR-6/Mn/Sn/Pb synthesis by synergizing unique properties of the heterometallic complex with MWCNTs. This work also offers a new insight into the design of multifunctional carbon-based materials for discrimination of different analytes on the basis of their redox potential.
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Affiliation(s)
- Randeep Kaur
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Geetika Bhardwaj
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar (IIT Ropar), Rupnagar, Punjab 140001, India
| | - Navneet Kaur
- Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
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3
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Kandel MR, Pan UN, Dhakal PP, Ghising RB, Sidra S, Kim DH, Kim NH, Lee JH. Manganese-Doped Bimetallic (Co,Ni) 2P Integrated CoP in N,S Co-Doped Carbon: Unveiling a Compatible Hybrid Electrocatalyst for Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307241. [PMID: 38126908 DOI: 10.1002/smll.202307241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/18/2023] [Indexed: 12/23/2023]
Abstract
Rational design of highly efficient noble-metal-unbound electrodes for hydrogen and oxygen production at increased current density is crucial for robust water-splitting. A facile hydrothermal and room-temperature aging method is presented, followed by chemical vapor deposition (CVD), to create a self-sacrificed hybrid heterostructure electrocatalyst. This hybrid material, (Mn-(Co,Ni)2P/CoP/(N,S)-C), comprises manganese-doped cobalt nickel phosphide (Mn-(Co,Ni)2P) nanofeathers and cobalt phosphide (CoP) nanocubes embedded in a nitrogen and sulfur co-doped carbon matrix (N,S)-C on nickel foam. The catalyst exhibits excellent performance in both the hydrogen evolution reaction (HER; η10 = 61 mV) and oxygen evolution reaction (OER; η10 = 213 mV) due to abundant active sites, high porosity, and enhanced hetero-interface interaction between Mn-(Co2P-Ni2P) CoP, and (N,S)-C supported by significant synergistic effects observed among different phases through density functional theory (DFT) calculations. Impressively, (Mn-(Co,Ni)2P/CoP/(N,S)-C (+,-) shows an extra low cell voltage of 1.49 V@10 mA cm-2. Moreover, the catalyst exhibits remarkable stability at 100 and 300 mA cm-2 when operating as a single stack cell electrolyzer. The superior electrochemical activity is attributed to the enhanced electrode-electrolyte interface among the multiple phases of the hybrid structure.
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Affiliation(s)
- Mani Ram Kandel
- Department of Nano Convergence Engineering (BK21 Four), Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
- Department of Chemistry, Tribhuvan University, Amrit Campus, Kathmandu, 44613, Nepal
| | - Uday Narayan Pan
- Department of Nano Convergence Engineering (BK21 Four), Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Purna Prasad Dhakal
- Department of Nano Convergence Engineering (BK21 Four), Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Ram Babu Ghising
- Department of Nano Convergence Engineering (BK21 Four), Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Saleem Sidra
- Division of Science Education, Graduate School of Department of Energy Storage/Conversion Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Do Hwan Kim
- Division of Science Education, Graduate School of Department of Energy Storage/Conversion Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Nam Hoon Kim
- Department of Nano Convergence Engineering (BK21 Four), Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Joong Hee Lee
- Department of Nano Convergence Engineering (BK21 Four), Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
- Carbon Composite Research Centre, Department of Polymer-Nano Science and Technology, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
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Zhang M, Wang J, Gong Y. Atomically dispersed silver atoms incorporated in spinel cobalt oxide (Co 3O 4) for boosting oxygen evolution reaction. J Colloid Interface Sci 2024; 659:203-212. [PMID: 38176230 DOI: 10.1016/j.jcis.2023.12.159] [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: 10/26/2023] [Revised: 12/04/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
Incorporating noble metal single atoms into lattice of spinel cobalt oxide (Co3O4) is an attractive way to fabricate oxygen evolution reaction (OER) electrocatalysts because of the high activity and economic benefit. The commonly used high valence noble metal dopants such as ruthenium, iridium and rhodium tend to supersede Co3+ at octahedral site of Co3O4 and result in great activity, the origins of admirable activity were also wildly investigated. However, bare explorations on doping noble metal single atom into tetrahedral site of Co3O4 to construct OER catalyst have been reported, corresponding catalytic activity and mechanism remain mystery. Here, a promising structure that tetrahedrally substituent Ag single atom embedded in Co3O4 nanoparticles on the surface of carbon nanotube (Ag-Co3O4/CNT) was presented, and its performance in OER was probed. The high angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) and X-ray absorption spectroscopy (XAS) demonstrate the successful embeddedness of atomical Ag atom in Co3O4 lattice, the resultant electronic interaction is conducive to promote charge transfer for OER. Theoretical calculations further disclose that atomical Ag dopant prefers to replace tetrahedral Co2+ rather than octahedral Co3+. The substitution Ag acts as the active site through Ag-Co bridge and facilitates the desorption process, which improves the turnover frequency (TOF) and boosts the intrinsic activity of Ag-Co3O4/CNT. Benefiting from the essentials above, Ag-Co3O4/CNT displays remarkable activity (236 mV@10 mA cm-2) and robust stability for alkaline OER. This finding offers a potential direction for the design of noble metal single atom involved Co3O4 based OER electrocatalysts.
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Affiliation(s)
- Meilin Zhang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Jinlei Wang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Yaqiong Gong
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, Shanxi 030051, China.
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5
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Machín A, Morant C, Soto-Vázquez L, Resto E, Ducongé J, Cotto M, Berríos-Rolón PJ, Martínez-Perales C, Márquez F. Synergistic Effects of Co 3O 4-gC 3N 4-Coated ZnO Nanoparticles: A Novel Approach for Enhanced Photocatalytic Degradation of Ciprofloxacin and Hydrogen Evolution via Water Splitting. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1059. [PMID: 38473530 DOI: 10.3390/ma17051059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
This research evaluates the efficacy of catalysts based on Co3O4-gC3N4@ZnONPs in the degradation of ciprofloxacin (CFX) and the photocatalytic production of H2 through water splitting. The results show that CFX experiences prompt photodegradation, with rates reaching up to 99% within 60 min. Notably, the 5% (Co3O4-gC3N4)@ZnONPs emerged as the most potent catalyst. The recyclability studies of the catalyst revealed a minimal activity loss, approximately 6%, after 15 usage cycles. Using gas chromatography-mass spectrometry (GC-MS) techniques, the by-products of CFX photodegradation were identified, which enabled the determination of the potential degradation pathway and its resultant products. Comprehensive assessments involving photoluminescence, bandgap evaluations, and the study of scavenger reactions revealed a degradation mechanism driven primarily by superoxide radicals. Moreover, the catalysts demonstrated robust performance in H2 photocatalytic production, with some achieving outputs as high as 1407 µmol/hg in the visible spectrum (around 500 nm). Such findings underline the potential of these materials in environmental endeavors, targeting both water purification from organic pollutants and energy applications.
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Affiliation(s)
- Abniel Machín
- Environmental Catalysis Research Lab, Division of Science, Technology and Environment, Cupey Campus, Universidad Ana G. Méndez, Cupey, PR 00926, USA
| | - Carmen Morant
- Department of Applied Physics, Autonomous University of Madrid, and Instituto de Ciencia de Materiales Nicolás Cabrera, 28049 Madrid, Spain
| | - Loraine Soto-Vázquez
- Materials Characterization Center Inc., Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, USA
| | - Edgard Resto
- Materials Characterization Center Inc., Molecular Sciences Research Center, University of Puerto Rico, San Juan, PR 00926, USA
| | - José Ducongé
- Nanomaterials Research Group, Department of Natural Sciences and Technology, Division of Natural Sciences, Technology and Environment, Universidad Ana G. Méndez-Gurabo Campus, Gurabo, PR 00778, USA
| | - María Cotto
- Nanomaterials Research Group, Department of Natural Sciences and Technology, Division of Natural Sciences, Technology and Environment, Universidad Ana G. Méndez-Gurabo Campus, Gurabo, PR 00778, USA
| | - Pedro J Berríos-Rolón
- Nanomaterials Research Group, Department of Natural Sciences and Technology, Division of Natural Sciences, Technology and Environment, Universidad Ana G. Méndez-Gurabo Campus, Gurabo, PR 00778, USA
| | - Cristian Martínez-Perales
- Nanomaterials Research Group, Department of Natural Sciences and Technology, Division of Natural Sciences, Technology and Environment, Universidad Ana G. Méndez-Gurabo Campus, Gurabo, PR 00778, USA
| | - Francisco Márquez
- Nanomaterials Research Group, Department of Natural Sciences and Technology, Division of Natural Sciences, Technology and Environment, Universidad Ana G. Méndez-Gurabo Campus, Gurabo, PR 00778, USA
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Leng H, Zhang P, Wu J, Xu T, Deng H, Yang P, Wang S, Qiu J, Wu Z, Li S. The elemental pegging effect in locally ordered nanocrystallites of high-entropy oxide enables superior lithium storage. NANOSCALE 2023; 15:19139-19147. [PMID: 37933578 DOI: 10.1039/d3nr04006b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
High-entropy oxides (HEOs) can be well suited for lithium-ion battery anodes because of their multi-principal synergistic effect and good stability. The appropriate selection and combination of elements play a crucial role in designing conversion-type anode materials with outstanding electrochemical performance. In this study, we have successfully built a single-phase spinel-structured HEO material of (Mn0.23Fe0.23Co0.22Cr0.19Zn0.13)3O4 (HEO-MFCCZ). When the HEO-MFCCZ materials transform into a coexisting state of amorphous and nanocrystalline structures during the cycling process, the inert Zn element can initiate a pegging effect, causing enhanced stability. The transition also introduces many defect sites, effectively reducing the potential barrier for ion transport and accelerating ion transport. The increased electronic and ionic conductivities and pseudocapacitive contribution significantly enhance the rate performance. As a result, a unique and practical approach is provided for developing anode materials for lithium-ion batteries.
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Affiliation(s)
- Huitao Leng
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Panpan Zhang
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Jiansheng Wu
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Taiding Xu
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Hong Deng
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Pan Yang
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
- Centre for Clean Environment and Energy, School of Environment and Science, Griffith University, Gold Coast 4222, Australia.
| | - Shouyue Wang
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Jingxia Qiu
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
| | - Zhenzhen Wu
- Centre for Clean Environment and Energy, School of Environment and Science, Griffith University, Gold Coast 4222, Australia.
| | - Sheng Li
- School of Physical and Mathematical Sciences, Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China.
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7
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Teke S, Hossain MM, Bhattarai RM, Saud S, Denra A, Hoang Phuong Lan Nguyen MC, Ali A, Nguyen VT, Mok YS. A simple microplasma reactor paired with indirect ultrasonication for aqueous phase synthesis of cobalt oxide nanoparticles. NANOSCALE ADVANCES 2023; 5:3964-3975. [PMID: 37496629 PMCID: PMC10367960 DOI: 10.1039/d3na00249g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/23/2023] [Indexed: 07/28/2023]
Abstract
Cobalt oxide nanoparticles are widely used owing to their distinct properties such as their larger surface area, enhanced reactivity, and their superior optical, electronic, and magnetic properties when compared to their bulk counterpart. The nanoparticles are preferably synthesized using a bottom-up approach in liquid as it allows the particle size to be more precisely controlled. In this study, we employed microplasma to synthesize Co3O4 nanoparticles because it eliminates harmful reducing agents and is efficient and cost-effective. Microplasma reactors are equipped with copper wire electrodes to generate plasma and are simple to configure. The product was characterized using UV-Vis spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). The experimental parameters that were varied for the synthesis were: with or without stirring, with or without indirect ultrasonication, and with or without capping agents (urea and sucrose). The results showed that the microplasma enabled Co3O4 nanoparticles to be successfully synthesized, with particle sizes of 10.9-17.7 nm, depending on the synthesis conditions.
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Affiliation(s)
- Sosiawati Teke
- Department of Chemical Engineering, Jeju National University Jeju 63243 Republic of Korea +82-64-755-3670 +82-64-754-3682
| | - Md Mokter Hossain
- Department of Chemical and Biological Engineering, University of Idaho Moscow 83844 USA
| | - Roshan Mangal Bhattarai
- Department of Chemical Engineering, Jeju National University Jeju 63243 Republic of Korea +82-64-755-3670 +82-64-754-3682
| | - Shirjana Saud
- Department of Chemical Engineering, Jeju National University Jeju 63243 Republic of Korea +82-64-755-3670 +82-64-754-3682
| | - Avik Denra
- Department of Chemical Engineering, Jeju National University Jeju 63243 Republic of Korea +82-64-755-3670 +82-64-754-3682
| | | | - Adnan Ali
- Department of Chemical Engineering, Jeju National University Jeju 63243 Republic of Korea +82-64-755-3670 +82-64-754-3682
| | - Van Toan Nguyen
- Faculty of Mechanical Engineering, Le Quy Don Technical University Vietnam
| | - Young Sun Mok
- Department of Chemical Engineering, Jeju National University Jeju 63243 Republic of Korea +82-64-755-3670 +82-64-754-3682
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8
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Hajra A, Chattopadhyay A. Dimension-Dependent Magnetic Behavior of Manganese-Cysteine Inorganic Complex Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37307283 DOI: 10.1021/acs.langmuir.3c00531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A cysteine-based complex of Mn2+ led to the formation of nanoparticles in aqueous medium under ambient conditions. The formation and evolution of the nanoparticles in the medium were followed by ultraviolet-visible light (UV-vis) spectroscopy, circular dichroism, and electron spin resonance spectroscopy that also revealed a first-order process. The magnetic properties of the nanoparticles isolated as solid powders exhibited strong crystallite and particle size dependence. At low crystallite size, as well as particle size, the complex nanoparticles showed superparamagnetic behavior similar to other magnetic inorganic nanoparticles. The magnetic nanoparticles were found to undergo a superparamagnetic to ferromagnetic transition, and then to paramagnetic transition with a gradual increase in either their crystallite size or particle size. The discovery of dimension-dependent magnetic property of inorganic complex nanoparticles may usher in a superior option for tuning the magnetic behavior of nanocrystals, depending on the component ligands and metal ions.
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Affiliation(s)
- Archismita Hajra
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Arun Chattopadhyay
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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9
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Alom MS, Ramezanipour F. Vacancy effect on the electrocatalytic activity of LaMn 1/2Co 1/2O 3-δ for hydrogen and oxygen evolution reactions. Chem Commun (Camb) 2023; 59:5870-5873. [PMID: 37170997 DOI: 10.1039/d3cc00961k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Development of efficient electrocatalysts for water splitting can be a significant step toward green hydrogen generation. In this work, a remarkable enhancement of electrocatalytic properties is achieved through the incorporation of oxygen-vacancies in a perovskite oxide, while maintaining the same structural framework. The oxygen-deficient material La2MnCoO6-δ (LaMn0.5Co0.5O3-δ) is isostructural to the parent stoichiometric material, but shows drastically enhanced electrocatalytic properties for both half-reactions of water-splitting, namely hydrogen-evolution and oxygen-evolution reactions, due to the oxygen-vacancies.
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Affiliation(s)
- Md Sofiul Alom
- Department of Chemistry, University of Louisville, Louisville, KY 40292, USA.
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10
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Khosravi M, Mohammadi MR. Trends and progress in application of cobalt-based materials in catalytic, electrocatalytic, photocatalytic, and photoelectrocatalytic water splitting. PHOTOSYNTHESIS RESEARCH 2022; 154:329-352. [PMID: 36195743 DOI: 10.1007/s11120-022-00965-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
There has been a growing interest in water oxidation in recent two decades. Along with that, remarkable discovery of formation of a mysterious catalyst layer upon application of an anodic potential of 1.13 V vs. standard hydrogen electrode (SHE) to an inert indium tin oxide electrode immersed in phosphate buffer containing Co(II) ions by Nocera et.al, has greatly attracted researchers interest. These researches have oriented in two directions; one focuses on obtaining better understanding of the reported mysterious catalyst layer, further modification, and improved performance, and the second approach is about designing coordination complexes of cobalt and investigating their properties toward the application in water splitting. Although there have been critical debates on true catalysts that are responsible for water oxidation in homogeneous systems of coordination complexes of cobalt, and the case is not totally closed, in this short review, our focus will be mainly on recent major progress and developments in the design and the application of cobalt oxide-based materials in catalytic, electrocatalytic, photocatalytic, and photoelectrocatalytic water oxidation reaction, which have been reported since pioneering report of Nocera in 2008 (Kanan Matthew and Nocera Daniel in Science 321:1072-1075, 2008).
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Affiliation(s)
- Mehdi Khosravi
- Department of Physics, University of Sistan and Baluchestan, Zahedan, 98167-45845, Iran
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11
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Selvasundarasekar SS, Bijoy TK, Kumaravel S, Karmakar A, Madhu R, Bera K, Nagappan S, Dhandapani HN, Mersal GAM, Ibrahim MM, Sarkar D, Yusuf SM, Lee SC, Kundu S. Effective Formation of a Mn-ZIF-67 Nanofibrous Network via Electrospinning: An Active Electrocatalyst for OER in Alkaline Medium. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46581-46594. [PMID: 36194123 DOI: 10.1021/acsami.2c12643] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Finding the active center in a bimetallic zeolite imidazolate framework (ZIF) is highly crucial for the electrocatalytic oxygen evolution reaction (OER). In the present study, we constructed a bimetallic ZIF system with cobalt and manganese metal ions and subjected it to an electrospinning technique for feasible fiber formation. The obtained nanofibers delivered a lower overpotential value of 302 mV at a benchmarking current density of 10 mA cm-2 in an electrocatalytic OER study under alkaline conditions. The obtained Tafel slope and charge-transfer resistance values were 125 mV dec-1 and 4 Ω, respectively. The kinetics of the reaction is mainly attributed from the ratio of metals (Co and Mn) present in the catalyst. Jahn-Teller distortion reveals that the electrocatalytic active center on the Mn-incorporated ZIF-67 nanofibers (Mn-ZIF-67-NFs) was found to be Mn3+ along with the Mn2+ and Co2+ ions on the octahedral and tetrahedral sites, respectively, where Co2+ ions tend to suppress the distortion, which is well supported by density functional theory analysis, molecular orbital study, and magnetic studies.
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Affiliation(s)
- Sam Sankar Selvasundarasekar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - T K Bijoy
- Indo-Korea Science and Technology Center (IKST), Jakkur, Bengaluru560065, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Krishnendu Bera
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
| | - Gaber A M Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif21944, Saudi Arabia
| | - Mohamed M Ibrahim
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif21944, Saudi Arabia
| | - Debashish Sarkar
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai400085, India
| | - Seikh Mohammad Yusuf
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai400085, India
| | - Seung-Cheol Lee
- Indo-Korea Science and Technology Center (IKST), Jakkur, Bengaluru560065, India
- Electronic Materials Research Center, KIST, Seoul136-791, South Korea
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, India
- CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi630003, Tamil Nadu, India
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12
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Zhu Y, Sun Z, Deng Y, Liu F, Ruan W, Xie L. Mn 2O 3/Mn 3O 4-Cu 1.5Mn 1.5O 4 spinel as an efficient Fenton-like catalyst activating persulfate for the degradation of bisphenol A: Superoxide radicals dominate the reaction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 839:156075. [PMID: 35598663 DOI: 10.1016/j.scitotenv.2022.156075] [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: 02/15/2022] [Revised: 05/16/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
In this work, a Mn2O3/Mn3O4-Cu1.5Mn1.5O4 spinel was fabricated and utilised as a catalyst to activate peroxydisulfate (PDS) leading to degradation of bisphenol A (BPA). The results showed that the system exhibited an excellent turnover frequency (TOF) of 2.7 × 10-3 s-1 and high stability. The amount of ion leaching was small and the degree of mineralisation was up to 66.2%. Superoxide radicals (O2-) were determined to be the dominant active species in the system. ≡Mn(II) and oxygen vacancies (Vo) were found to be the main active sites at the catalyst surface. The activation of PDS by the spinel catalyst and the reduction of dissolved oxygen both contributed to the production of O2- species. The synergistic effect of ≡Cu(I)/≡Cu(II) and ≡Mn(II)/≡Mn(III) redox pairs enabled the reaction to occur continuously. These results suggest the promise of this novel spinel catalyst in the removal of refractory organic compounds due to its excellent performance and stability. The catalyst may thus have great utility for environmental remediation.
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Affiliation(s)
- Yihong Zhu
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Zijing Sun
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Yun Deng
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China.
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States.
| | - Wenquan Ruan
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory of Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi 214122, China
| | - Lijuan Xie
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China; Jiangsu Engineering Laboratory of Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi 214122, China.
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13
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Santos JRD, Raimundo RA, Silva TR, Silva VD, Macedo DA, Loureiro FJA, Torres MAM, Tonelli D, Gomes UU. Nanoparticles of Mixed-Valence Oxides Mn XCO 3-XO 4 (0 ≤ X ≤ 1) Obtained with Agar-Agar from Red Algae (Rhodophyta) for Oxygen Evolution Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3170. [PMID: 36144958 PMCID: PMC9506112 DOI: 10.3390/nano12183170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/02/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The development of efficient electrocatalysts for the oxygen evolution reaction (OER) is of paramount importance in sustainable water-splitting technology for hydrogen production. In this context, this work reports mixed-valence oxide samples of the MnXCo3-XO4 type (0 ≤ X ≤ 1) synthesized for the first time by the proteic sol-gel method using Agar-Agar as a polymerizing agent. The powders were calcined at 1173 K, characterized by FESEM, XRD, RAMAN, UV-Vis, FT-IR, VSM, and XPS analyses, and were investigated as electrocatalysts for the oxygen evolution reaction (OER). Through XRD analysis, it was observed that the pure cubic phase was obtained for all samples. The presence of Co3+, Co2+, Mn2+, Mn3+, and Mn4+ was confirmed by X-ray spectroscopy (XPS). Regarding the magnetic measurements, a paramagnetic behavior at 300 K was observed for all samples. As far as OER is concerned, it was investigated in an alkaline medium, where the best overpotential of 299 mV vs. RHE was observed for the sample (MnCo2O4), which is a lower value than those of noble metal electrocatalysts in the literature, together with a Tafel slope of 52 mV dec-1, and excellent electrochemical stability for 15 h. Therefore, the green synthesis method presented in this work showed great potential for obtaining electrocatalysts used in the oxygen evolution reaction for water splitting.
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Affiliation(s)
| | | | - Thayse R. Silva
- Materials Science and Engineering Postgraduate Program, UFPB, João Pessoa 58051-900, Brazil
| | - Vinícius D. Silva
- Materials Science and Engineering Postgraduate Program, UFPB, João Pessoa 58051-900, Brazil
| | - Daniel A. Macedo
- Materials Science and Engineering Postgraduate Program, UFPB, João Pessoa 58051-900, Brazil
| | - Francisco J. A. Loureiro
- Centre for Mechanical Technology and Automation, Mechanical Engineering Department, UA, 3810-193 Aveiro, Portugal
| | - Marco A. M. Torres
- Materials Science and Engineering Postgraduate Program, UFRN, Natal 59078-970, Brazil
| | - Domenica Tonelli
- Department of Industrial Chemistry “Toso Montanari”, Industrial Chemistry, UNIBO, V.le Risorgimento 4, 40136 Bologna, Italy
| | - Uílame U. Gomes
- Materials Science and Engineering Postgraduate Program, UFRN, Natal 59078-970, Brazil
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14
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Qiu Y, Liu Z, Yang Q, Zhang X, Liu J, Liu M, Bi T, Ji X. Atmospheric‐Temperature Chain Reaction towards Ultrathin Non‐Crystal‐Phase Construction for Highly Efficient Water Splitting. Chemistry 2022; 28:e202200683. [DOI: 10.1002/chem.202200683] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Indexed: 12/31/2022]
Affiliation(s)
- Yanling Qiu
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
| | - Zhiqiang Liu
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
| | - Qian Yang
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
| | - Xinyue Zhang
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
| | - Jingquan Liu
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
| | - Mengyao Liu
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
| | - Tianyi Bi
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
| | - Xuqiang Ji
- College of Materials Science and Engineering Institute for Graphene Applied Technology Innovation Qingdao University Qingdao 266071 P. R. China
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15
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Zhao W, Wang W, Meng F, Du Y, Ji Q, Quan HD. One-pot synthesis of bimetallic Fe/Co incorporated silica hollow spheres with superior peroxidase-like activity. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Cho KY, Jung CH, Cho JY, Jang WK, Oh WC. A Novel Responsive Sensor for Penicillium italicum Fruit Fungus Based on Mesoporous CaMn4O8-G-SiO2 Nanocomposite. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02473-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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17
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Cheng M, Iyer AK, Zhou X, Tyner A, Liu Y, Shehzad MA, Goswami P, Chung DY, Kanatzidis MG, Dravid VP. Tuning the Structural and Magnetic Properties in Mixed Cation Mn xCo 2-xP 2S 6. Inorg Chem 2022; 61:13719-13727. [PMID: 35998562 DOI: 10.1021/acs.inorgchem.2c01116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The metal thiophosphates (MTP), M2P2S6, are a versatile class of van der Waals materials, which are notable for the possibility of tuning their magnetic properties with the incorporation of different transition-metal cations. Further, they also offer opportunities to probe the independent and synergistic role of the magnetically active cation sublattice when coupled to P2Q6 polyhedra. Herein, we report the structural, magnetic, and electronic properties of the series of MTPs, MnxCo2-xP2S6 (x = 0.25, 0.5, 1, 1.5, 1.75) synthesized by the P2S5 flux method. Structural and elemental analysis indicates a homogeneous stoichiometry in the MnxCo2-xP2S6 compounds. We observe that a correlation is apparent between the intensities of specific Raman modes and Raman shifts with respect to the alloying ratio between Mn and Co. Magnetic susceptibility measurements indicate that the alloyed systems adopt an ordered antiferromagnetic (AFM) configuration with a dependence of the Néel temperature on the alloying ratio. A possible magnetic frustration behavior was observed for the composition MnCoP2S6 due to magnetic moment compensation as the alloying ratio between Mn and Co approaches parity. Interestingly, mixed oxidation states of the metal cation species are also observed in MnxCo2-xP2S6 along with a linear dependence of the work function on the alloying ratio of Mn and Co.
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Affiliation(s)
- Matthew Cheng
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Abishek K Iyer
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Xiuquan Zhou
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Alexander Tyner
- Graduate program in Applied Physics, Northwestern University, Evanston, Illinois 60208, United States
| | - Yukun Liu
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - M Arslan Shehzad
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Pallab Goswami
- Graduate program in Applied Physics, Northwestern University, Evanston, Illinois 60208, United States.,Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
| | - Duck Young Chung
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States.,International Institute for Nanotechnology (IIN), Northwestern University, Evanston, Illinois 60208, United States
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18
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Fan X, Walther A. 1D Colloidal chains: recent progress from formation to emergent properties and applications. Chem Soc Rev 2022; 51:4023-4074. [PMID: 35502721 DOI: 10.1039/d2cs00112h] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Integrating nanoscale building blocks of low dimensionality (0D; i.e., spheres) into higher dimensional structures endows them and their corresponding materials with emergent properties non-existent or only weakly existent in the individual building blocks. Constructing 1D chains, 2D arrays and 3D superlattices using nanoparticles and colloids therefore continues to be one of the grand goals in colloid and nanomaterial science. Amongst these higher order structures, 1D colloidal chains are of particular interest, as they possess unique anisotropic properties. In recent years, the most relevant advances in 1D colloidal chain research have been made in novel synthetic methodologies and applications. In this review, we first address a comprehensive description of the research progress concerning various synthetic strategies developed to construct 1D colloidal chains. Following this, we highlight the amplified and emergent properties of the resulting materials, originating from the assembly of the individual building blocks and their collective behavior, and discuss relevant applications in advanced materials. In the discussion of synthetic strategies, properties, and applications, particular attention will be paid to overarching concepts, fresh trends, and potential areas of future research. We believe that this comprehensive review will be a driver to guide the interdisciplinary field of 1D colloidal chains, where nanomaterial synthesis, self-assembly, physical property studies, and material applications meet, to a higher level, and open up new research opportunities at the interface of classical disciplines.
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Affiliation(s)
- Xinlong Fan
- Institute for Macromolecular Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Str. 31, 79104, Freiburg, Germany.
| | - Andreas Walther
- A3BMS Lab, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
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19
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Koventhan C, Vinothkumar V, Chen SM. Rational design of manganese oxide/tin oxide hybrid nanocomposite based electrochemical sensor for detection of prochlorperazine (Antipsychotic drug). Microchem J 2022. [DOI: 10.1016/j.microc.2021.107082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Rana P, Kaushik B, Gaur R, Dutta S, Yadav S, Rana P, Solanki K, Arora B, Biradar AV, Gawande MB, Sharma RK. An Earth-abundant cobalt based photocatalyst: visible light induced direct (het)arene C-H arylation and CO 2 capture. Dalton Trans 2022; 51:2452-2463. [PMID: 35048925 DOI: 10.1039/d1dt03625d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we have reported a noble metal free heterogeneous photocatalyst to carry out direct (het)arene C-H arylation and solvent-free CO2 capture via single-electron transfer processes at room temperature and under pressure. The catalytic system comprises a cobalt(III) complex grafted over the silica coated magnetic support for the efficient recovery of the photocatalytic moiety without hampering its light-harvesting capability. The novel Earth-abundant cobalt(III) based photocatalyst possesses various fascinating properties such as high surface area to volume ratios, large pore volume, crystalline behaviour, high metal loading, excellent stability and reusability. The general efficacy of the highly abundant and low-cost cobalt based heterogeneous nanocatalyst was checked for the selective conversion of aryldiazonium salts into synthetically and pharmaceutically significant biaryl motifs under ambient conditions upon irradiation with visible light. The highly efficient photocatalytic conversion of carbon dioxide (CO2) to a value-added chemical was accomplished under mild reaction conditions with high selectivity, showing the added benefit of operational simplicity.
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Affiliation(s)
- Pooja Rana
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Bhawna Kaushik
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Rashmi Gaur
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Sriparna Dutta
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Sneha Yadav
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Pooja Rana
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Kanika Solanki
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Bhavya Arora
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Ankush V Biradar
- Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India
| | - Manoj B Gawande
- Institute of Chemical Technology Mumbai-Marathwada Campus, Jalna, 431213, Maharashtra, India
| | - R K Sharma
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
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21
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Suarsih E, Kita Y, Kamata K, Hara M. A heterogeneous cobalt catalyst for C–C bond formation by a borrowing hydrogen strategy. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00724j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Co–MgO/TiO2 exhibited high activity for α-alkylation of ketones with alcohols through a borrowing hydrogen strategy without the addition of bases which were utilized in reported heterogeneous catalytic systems.
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Affiliation(s)
- Endah Suarsih
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8503, Japan
| | - Yusuke Kita
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8503, Japan
| | - Keigo Kamata
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8503, Japan
| | - Michikazu Hara
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8503, Japan
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22
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Triyono D, Yunida Y, Rafsanjani RA. Effect of Heat Treatment on Structural, Magnetic and Electrical Properties of La 2FeMnO 6. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7501. [PMID: 34947097 PMCID: PMC8709439 DOI: 10.3390/ma14247501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 11/25/2022]
Abstract
In this study, the effect of heat treatment on the structural, magnetic and electrical properties of La2FeMnO6 prepared via the sol-gel and sintering method were investigated. The heat-treatment conditions, i.e., the calcination temperature (1023 K and 1173 K), sintering temperature and time (1273 K for 1 and 3 h) were carried out. X-ray diffraction (XRD) revealed orthorhombic pnma (62) symmetry without any impurity phase for all samples. X-ray photoelectron spectroscopy confirmed the presence of Fe2+-Fe3+-Fe4+ and Mn3+-Mn4+ mixed states, and lanthanum and oxygen vacancies resulting in various magnetic exchange interactions. Furthermore, the magnetisation hysteresis showed enhanced hysteresis loops accompanied by an increase in magnetisation parameters with calcination temperature. The Raman phonon parameters induced a redshift in the phonon modes, alongside an increase in the intensity and compression of the linewidth, reflecting a decrease in lattice distortion, which was confirmed by XRD. The temperature-dependent conductivity showed that the conduction mechanism is dominated by p-type polaron hopping, and the lowest activation energy was approximately 0.237 ± 0.003 eV for the minimum heat-treatment conditions. These results show that varying heat-treatment conditions can significantly affect the structural, magnetic and electrical properties of the La2FeMnO6 system.
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Affiliation(s)
- Djoko Triyono
- Department of Physics, Faculty of Mathematics and Natural Science (FMIPA), Universitas Indonesia Depok, Depok 16424, Indonesia; (Y.Y.); (R.A.R.)
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23
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Singh B, Singh A, Yadav A, Indra A. Modulating electronic structure of metal-organic framework derived catalysts for electrochemical water oxidation. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214144] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Mittal R, Awasthi SK. A Synergistic Magnetically Retrievable Inorganic‐Organic Hybrid Metal Oxide Catalyst for Scalable Selective Oxidation of Alcohols to Aldehydes and Ketones. ChemCatChem 2021. [DOI: 10.1002/cctc.202101262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Rupali Mittal
- Chemical Biology Laboratory Department of Chemistry University of Delhi Delhi 110007 India
| | - Satish Kumar Awasthi
- Chemical Biology Laboratory Department of Chemistry University of Delhi Delhi 110007 India
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25
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Deng X, Yang Y, Wang L, Fu X, Luo J. Metallic Co Nanoarray Catalyzes Selective NH 3 Production from Electrochemical Nitrate Reduction at Current Densities Exceeding 2 A cm -2. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004523. [PMID: 33854903 PMCID: PMC8025016 DOI: 10.1002/advs.202004523] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/18/2020] [Indexed: 06/12/2023]
Abstract
Electrochemical nitrate reduction (NITRR) offers a promising alternative toward nitrogen recycling and ammonia production under ambient conditions, for which highly active and selective electrocatalyst is desired. In this study, metallic cobalt nanoarrays as facilely prepared from the electrochemical reduction of Co(OH)2 nanoarrays (NAs) are demonstrated to exhibit unprecedented NH3 producing capability from catalyzing NITRR. Benefitting from the high intrinsic activity of Co0, intimate contact between active species and conductive substrate and the nanostructure which exposes large number of active sites, the Co-NAs electrode exhibits current density of -2.2 A cm-2 and NH3 production rate of 10.4 mmol h-1 cm-2 at -0.24 V versus RHE under alkaline condition and significantly surpasses reported counterparts. Moreover, the close-to-unity (≥96%) Faradaic efficiency (FE) toward NH3 is achieved over wide application range (potential, NO3 - concentration and pH). Density function theory calculation reveals the optimized adsorption energy of NITRR intermediates on Co surface over Co(OH)2. Furthermore, it is proposed that despite the sluggish kinetics of Volmer step (H2O → *H + *OH) which provides protons in conventional hydrogenation mechanism, the proton-supplying water dissociation process on Co surface is drastically facilitated following a concerted water dissociation-hydrogenation pathway.
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Affiliation(s)
- Xiaohui Deng
- Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518061China
| | - Yongpeng Yang
- Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhou450001China
| | - Lei Wang
- Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518061China
| | - Xian‐Zhu Fu
- Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518061China
| | - Jing‐Li Luo
- Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhen518061China
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26
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Singh AK, Yadav A, Indra A, Rastogi RB. Superior performance of ultrathin metal organic framework nanosheets for antiwear and antifriction testing. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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27
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Zheng L, Hu L, Hu Y, Liu F, Liu Z, Xue Y, Zhang J, Liu H, Tang C. Interfacial modification of Co(OH)2/Co3O4 nanosheet heterostructure arrays for the efficient oxygen evolution reaction. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00240f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of efficient, stable and low-cost oxygen evolution reaction (OER) catalysts in anodes is essential for the production of hydrogen resources by electrolyzing water.
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Affiliation(s)
- Lekai Zheng
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Lina Hu
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Yongchuan Hu
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Fang Liu
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Zhiming Liu
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Yanming Xue
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Jun Zhang
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Hui Liu
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
| | - Chengchun Tang
- School of Material Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
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28
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Broicher C, Klingenhof M, Frisch M, Dresp S, Kubo NM, Artz J, Radnik J, Palkovits S, Beine AK, Strasser P, Palkovits R. Particle size-controlled synthesis of high-performance MnCo-based materials for alkaline OER at fluctuating potentials. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00905b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mn and Co containing nanocubes were produced by hydrothermal synthesis. The materials consist of metal spinels and carbonates, where spinels ensure high activity and carbonates contribute to high stability in the oxygen evolution reaction.
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Affiliation(s)
- Cornelia Broicher
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Malte Klingenhof
- Department of Chemistry, Chemical and Materials Engineering Division, Technical University Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Marvin Frisch
- Department of Chemistry, Chemical and Materials Engineering Division, Technical University Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Sören Dresp
- Department of Chemistry, Chemical and Materials Engineering Division, Technical University Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Nikolas Mao Kubo
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Jens Artz
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Jörg Radnik
- Bundesanstalt für Materialforschung und -prüfung, BAM, Unter den Eichen 44-46, 12203 Berlin, Germany
| | - Stefan Palkovits
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Anna Katharina Beine
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Peter Strasser
- Department of Chemistry, Chemical and Materials Engineering Division, Technical University Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Regina Palkovits
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
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29
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He J, Hu Z, Deng K, Zhao R, Lv X, Tian W, Zhang YX, Ji J. A triple-layered PPy@NiCo LDH/FeCo2O4 hybrid crystalline structure with high electron conductivity and abundant interfaces for supercapacitors and oxygen evolution. CrystEngComm 2021. [DOI: 10.1039/d1ce00076d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A PPy@NiCo LDH/FeCo2O4 triple-layer hybrid with bi-continuous conductive networks is fabricated via a novel one-step hydrothermal reaction and in situ polymerization.
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Affiliation(s)
- Jing He
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Zhufeng Hu
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Kuan Deng
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Renjun Zhao
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Xingbin Lv
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Wen Tian
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Yu Xin Zhang
- College of Material Science and Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Junyi Ji
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
- State Key Laboratory of Polymer Materials Engineering
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30
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Lourenço AA, Silva VD, da Silva R, Silva U, Chesman C, Salvador C, Simões TA, Macedo DA, da Silva FF. Metal-organic frameworks as template for synthesis of Mn3+/Mn4+ mixed valence manganese cobaltites electrocatalysts for oxygen evolution reaction. J Colloid Interface Sci 2021; 582:124-136. [DOI: 10.1016/j.jcis.2020.08.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/17/2020] [Accepted: 08/11/2020] [Indexed: 12/16/2022]
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31
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Sakthivel M, Ramki S, Chen SM, Ho KC. Cobalt-tungsten diselenide-supported nickel foam as a battery-type positive electrode for an asymmetric supercapacitor device: comparison with various MWSe 2 (M = Ni, Cu, Zn, and Mn) on the structural and capacitance characteristics. NANOSCALE 2020; 12:15752-15766. [PMID: 32678416 DOI: 10.1039/d0nr02990d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
New exploration in nanomaterial research has been greatly encouraged so as to discover active electrode materials with extraordinary properties and performances. In this report, we demonstrated the synthesis of different transition metal-incorporated MWSe2 (M = Co, Ni, Cu, Zn, and Mn) and studied them using various characterization techniques. Subsequently, the proposed bimetallic chalcogenides were successfully applied as the active electrode materials for pseudocapacitor applications. The results of the electrochemical studies showed that CoWSe2 exhibited a higher specific capacitance of 3309.58 F g-1 at a constant applied current density of 1.35 A g-1, which is 1.07, 1.76, 2.04, 8.7, and 12.28-fold higher than that of NiWSe2, CuWSe2, ZnWSe2, MnWSe2, and pristine WSe2, respectively. The interconnected nanosheet structure with voids facilitates rich active sites for efficient electrolyte uptake and superior charge transfer during the faradaic redox reaction. In addition, the cycle stability of CoWSe2/NF was studied and the retention capacitance of about 82.1% was recorded, which is higher than that of NiWSe2 (60.4%), CuWSe2 (50.12%), ZnWSe2 (46.44%), MnWSe2 (40.12%), and pristine WSe2 (31.2%). Owing to the higher specific capacitance and cycle stability, CoWSe2 was proposed as a battery-type electrode material for the fabrication of an asymmetric device. The fabricated CoWSe2//AC device provided excellent energy density and power density of 182.54 W h kg-1 and 2810.81 W kg-1, respectively, at 3.51 A g-1. Based on these properties, the proposed research and studies can provide a way for the profound development of 2D-layered metal chalcogenides for energy storage applications.
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Affiliation(s)
- Mani Sakthivel
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan. and Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Settu Ramki
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Kuo-Chuan Ho
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan. and Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
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32
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Babu B, Palanisamy S, Vinosha M, Anjali R, Kumar P, Pandi B, Tabarsa M, You S, Prabhu NM. Bioengineered gold nanoparticles from marine seaweed Acanthophora spicifera for pharmaceutical uses: antioxidant, antibacterial, and anticancer activities. Bioprocess Biosyst Eng 2020; 43:2231-2242. [PMID: 32683506 DOI: 10.1007/s00449-020-02408-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/10/2020] [Indexed: 12/11/2022]
Abstract
In this study, we report a green synthesis of pharmaceutically active gold nanoparticles from marine red alga Acanthophora spicifera by the reduction of chloroauric acid. The formation of A. spicifera-mediated gold nanoparticles (As-AuNPs) was characterized by several analytical techniques. The crystalline and face-centered cubic (fcc) structure were confirmed by X-ray diffraction (XRD) analysis. Electron microscopy results confirmed that As-AuNPs were spherical and the average size of particles was < 20 nm. As-AuNPs hold a significant level of antioxidant activities than A. spicifera extract. As-AuNPs exhibited the highest antibacterial activity against Vibrio harveyi than Staphylococcus aureus at 100 µg/ml. Furthermore, As-AuNPs exhibited the utmost cytotoxicity against human colon adenocarcinoma (HT-29) cells and registered the half-maximal inhibitory concentration (IC50) at 21.86 µg/ml. These findings authenticated that the synthesized As-AuNPs possess a broad spectrum of biological activities, and it can be effectively applied in the field of aquaculture and biomedical application.
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Affiliation(s)
- Baskaran Babu
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Subramanian Palanisamy
- East Coast Life Sciences Institute, Gangneung-Wonju National University, 120 Gangneung, Gangwon, 210-720, Republic of Korea.,Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneungdaehangno, Gangneung, Gangwon, 210-702, Republic of Korea
| | - Manoharan Vinosha
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Ravichandran Anjali
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Ponnuchamy Kumar
- Food Chemistry and Molecular Cancer Biology Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Boomi Pandi
- Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Mehdi Tabarsa
- Department of Seafood Processing, Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356, Noor, Iran
| | - SangGuan You
- East Coast Life Sciences Institute, Gangneung-Wonju National University, 120 Gangneung, Gangwon, 210-720, Republic of Korea.,Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneungdaehangno, Gangneung, Gangwon, 210-702, Republic of Korea
| | - Narayanasamy Marimuthu Prabhu
- Disease Control and Prevention Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India.
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33
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Singh B, Indra A. Role of redox active and redox non-innocent ligands in water splitting. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119440] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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34
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Chakraborty B, Kalra S, Beltrán‐Suito R, Das C, Hellmann T, Menezes PW, Driess M. A Low-Temperature Molecular Precursor Approach to Copper-Based Nano-Sized Digenite Mineral for Efficient Electrocatalytic Oxygen Evolution Reaction. Chem Asian J 2020; 15:852-859. [PMID: 32011083 PMCID: PMC7155036 DOI: 10.1002/asia.202000022] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 01/30/2020] [Indexed: 12/14/2022]
Abstract
In the urge of designing noble metal-free and sustainable electrocatalysts for oxygen evolution reaction (OER), herein, a mineral Digenite Cu9 S5 has been prepared from a molecular copper(I) precursor, [{(PyHS)2 CuI (PyHS)}2 ](OTf)2 (1), and utilized as an anode material in electrocatalytic OER for the first time. A hot injection of 1 yielded a pure phase and highly crystalline Cu9 S5 , which was then electrophoretically deposited (EPD) on a highly conducting nickel foam (NF) substrate. When assessed as an electrode for OER, the Cu9 S5 /NF displayed an overpotential of merely 298±3 mV at a current density of 10 mA cm-2 in alkaline media. The overpotential recorded here supersedes the value obtained for the best reported Cu-based as well as the benchmark precious-metal-based RuO2 and IrO2 electrocatalysts. In addition, the choronoamperometric OER indicated the superior stability of Cu9 S5 /NF, rendering its suitability as the sustainable anode material for practical feasibility. The excellent catalytic activity of Cu9 S5 can be attributed to the formation of a crystalline CuO overlayer on the conductive Cu9 S5 that behaves as active species to facilitate OER. This study delivers a distinct molecular precursor approach to produce highly active copper-based catalysts that could be used as an efficient and durable OER electro(pre)catalysts relying on non-precious metals.
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Affiliation(s)
- Biswarup Chakraborty
- Department of Chemistry Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Shweta Kalra
- Department of Chemistry Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Rodrigo Beltrán‐Suito
- Department of Chemistry Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Chittaranjan Das
- Karlsruhe Institute of Technology (KIT)Institute for Applied Materials (IAM-ESS)Hermann-von-Helmholtz-Platz 1D-76344Eggenstein-LeopoldshafenGermany
| | - Tim Hellmann
- Surface Science Division Department of Materials ScienceTechnical University DarmstadtOtto-Berndt-Str. 364287DarmstadtGermany
| | - Prashanth W. Menezes
- Department of Chemistry Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Matthias Driess
- Department of Chemistry Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
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35
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Dhandapani KV, Anbumani D, Gandhi AD, Annamalai P, Muthuvenkatachalam BS, Kavitha P, Ranganathan B. Green route for the synthesis of zinc oxide nanoparticles from Melia azedarach leaf extract and evaluation of their antioxidant and antibacterial activities. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101517] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Singh B, Indra A. Designing Self‐Supported Metal‐Organic Framework Derived Catalysts for Electrochemical Water Splitting. Chem Asian J 2020; 15:607-623. [DOI: 10.1002/asia.201901810] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/30/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Baghendra Singh
- Department of ChemistryIndian Institute of Technology (BHU) Varanasi Uttar Pradesh 221005 India
| | - Arindam Indra
- Department of ChemistryIndian Institute of Technology (BHU) Varanasi Uttar Pradesh 221005 India
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37
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Fabrication and evaluation of hybrid supercapacitor consisting of nano cobalt oxide and manganese oxide deposited electrochemically on nanoporous Au-Electrode. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135199] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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38
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Role of precursors mixing sequence on the properties of CoMn 2O 4 cathode materials and their application in pseudocapacitor. Sci Rep 2019; 9:16852. [PMID: 31728012 PMCID: PMC6856552 DOI: 10.1038/s41598-019-53364-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 10/30/2019] [Indexed: 11/08/2022] Open
Abstract
In this study, the effect of oxygen vacancy in the CoMn2O4 on pseudocapacitive characteristics was examined, and two tetragonal CoMn2O4 spinel compounds with different oxygen vacancy concentrations and morphologies were synthesized by controlling the mixing sequence of the Co and Mn precursors. The mixing sequence was changed; thus, morphologies were changed from spherical nanoparticles to nanoflakes and oxygen vacancies were increased. Electrochemical studies have revealed that tetragonal CoMn2O4 spinels with a higher number of oxygen vacancies exhibit a higher specific capacitance of 1709 F g-1 than those with a lower number of oxygen vacancies, which have a higher specific capacitance of 990 F g-1. Oxygen vacancies create an active site for oxygen ion intercalation. Therefore, oxidation-reduction reactions occur because of the diffusion of oxygen ions at octahedral/tetrahedral crystal edges. The solid-state asymmetric pseudocapacitor exhibits a maximum energy density of 32 Wh-kg-1 and an excellent cyclic stability of nearly 100%.
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39
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Menezes PW, Walter C, Hausmann JN, Beltrán‐Suito R, Schlesiger C, Praetz S, Yu. Verchenko V, Shevelkov AV, Driess M. Boosting Water Oxidation through In Situ Electroconversion of Manganese Gallide: An Intermetallic Precursor Approach. Angew Chem Int Ed Engl 2019; 58:16569-16574. [PMID: 31483557 PMCID: PMC6899514 DOI: 10.1002/anie.201909904] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Indexed: 11/30/2022]
Abstract
For the first time, the manganese gallide (MnGa4 ) served as an intermetallic precursor, which upon in situ electroconversion in alkaline media produced high-performance and long-term-stable MnOx -based electrocatalysts for water oxidation. Unexpectedly, its electrocorrosion (with the concomitant loss of Ga) leads simultaneously to three crystalline types of MnOx minerals with distinct structures and induced defects: birnessite δ-MnO2 , feitknechtite β-MnOOH, and hausmannite α-Mn3 O4 . The abundance and intrinsic stabilization of MnIII /MnIV active sites in the three MnOx phases explains the superior efficiency and durability of the system for electrocatalytic water oxidation. After electrophoretic deposition of the MnGa4 precursor on conductive nickel foam (NF), a low overpotential of 291 mV, comparable to that of precious-metal-based catalysts, could be achieved at a current density of 10 mA cm-2 with a durability of more than five days.
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Affiliation(s)
- Prashanth W. Menezes
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Carsten Walter
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Jan Niklas Hausmann
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Rodrigo Beltrán‐Suito
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Christopher Schlesiger
- Institute of Optics and Atomic PhysicsTechnische Universität BerlinHardenbergstraße 3610623BerlinGermany
| | - Sebastian Praetz
- Institute of Optics and Atomic PhysicsTechnische Universität BerlinHardenbergstraße 3610623BerlinGermany
| | | | | | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
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40
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Menezes PW, Walter C, Hausmann JN, Beltrán‐Suito R, Schlesiger C, Praetz S, Yu. Verchenko V, Shevelkov AV, Driess M. Steigerung der Wasseroxidation durch In‐situ‐Elektrokonversion eines Mangangallids: Ein intermetallischer Vorläuferansatz. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909904] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Prashanth W. Menezes
- Institut für Chemie: Metallorganische Chemie und Anorganische MaterialienTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Deutschland
| | - Carsten Walter
- Institut für Chemie: Metallorganische Chemie und Anorganische MaterialienTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Deutschland
| | - Jan Niklas Hausmann
- Institut für Chemie: Metallorganische Chemie und Anorganische MaterialienTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Deutschland
| | - Rodrigo Beltrán‐Suito
- Institut für Chemie: Metallorganische Chemie und Anorganische MaterialienTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Deutschland
| | - Christopher Schlesiger
- Institut für Optik und Atomare PhysikTechnische Universität Berlin Hardenbergstraße 36 10623 Berlin Deutschland
| | - Sebastian Praetz
- Institut für Optik und Atomare PhysikTechnische Universität Berlin Hardenbergstraße 36 10623 Berlin Deutschland
| | | | | | - Matthias Driess
- Institut für Chemie: Metallorganische Chemie und Anorganische MaterialienTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Deutschland
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41
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Oxygen Evolution Reaction of Co-Mn-O Electrocatalyst Prepared by Solution Combustion Synthesis. Catalysts 2019. [DOI: 10.3390/catal9060564] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
High-performance oxygen evolution reaction (OER) electrocatalysts are needed to produce hydrogen for energy generation through a carbon-free route. In this work, the solution combustion synthesis (SCS) method was employed to synthesize mixed phases of Co- and Mn-based oxides, and the relationships between the crystalline structure and the catalytic properties in the mixed phases were established. The mixed phases of Co- and Mn-based oxides shows promising OER properties, such as acceptable overpotential (450 mV for 10 mA∙cm−2) and Tafel slope (35.8 mV∙dec−1), highlighting the use of the mixed phases of Co- and Mn-based oxides as a new efficient catalysts for water splitting. Electronic structure of the mixed phases of Co- and Mn based oxides is studied in detail to give insight for the origin of high catalytic activities. In addition, excellent long-term stability for OER in alkaline media is achieved for the mixed phase of Co- and Mn based oxides.
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42
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Jin W, Guo X, Zhang J, Zheng L, Liu F, Hu Y, Mao J, Liu H, Xue Y, Tang C. Ultrathin carbon coated CoO nanosheet arrays as efficient electrocatalysts for the hydrogen evolution reaction. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01645g] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An ultrathin carbon-coated CoO composite catalyst grown on carbon cloth was developed for efficient alkaline HER.
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43
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Menezes PW, Panda C, Garai S, Walter C, Guiet A, Driess M. Structurally Ordered Intermetallic Cobalt Stannide Nanocrystals for High‐Performance Electrocatalytic Overall Water‐Splitting. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809787] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Prashanth W. Menezes
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - Chakadola Panda
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - Somenath Garai
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - Carsten Walter
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - Amandine Guiet
- Le Mans UniversitéInstitut des Molécules et des Matériaux du Mans, UMR CNRS 6283, Le Mans Université Avenue Olivier Messiaen 72085 Le Mans Cedex 9 France
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
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44
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Menezes PW, Panda C, Garai S, Walter C, Guiet A, Driess M. Structurally Ordered Intermetallic Cobalt Stannide Nanocrystals for High-Performance Electrocatalytic Overall Water-Splitting. Angew Chem Int Ed Engl 2018; 57:15237-15242. [PMID: 30248219 DOI: 10.1002/anie.201809787] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Indexed: 12/22/2022]
Abstract
The synthesis of structurally ordered non-noble intermetallic cobalt stannide (CoSn2 ) nanocrystals and their utilization for high-performance electrocatalytic overall water-splitting is presented. The structurally and electronically beneficial properties of the tetragonal CoSn2 exhibit a considerably low overpotential for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) on fluorine-doped tin oxide (FTO) and Ni foam (NF). Loss of Sn from the crystal lattices and oxidation of Co under strongly alkaline conditions furnishes highly disordered amorphous active CoOx (H), the catalytically active structure for OER. The Co0 atoms in the CoSn2 act as active sites for HER and the presence of Sn provides efficient electrical conductivity. This intermetallic phase is a novel type of cost-effective and competitive bifunctional electrocatalysts and predestinated for overall water-splitting devices: A two-electrode electrolyzer with CoSn2 on NF delivers a cell voltage of merely 1.55 V at 10 mA cm-2 maintaining long-term stability.
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Affiliation(s)
- Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Chakadola Panda
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Somenath Garai
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Carsten Walter
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Amandine Guiet
- Le Mans Université, Institut des Molécules et des Matériaux du Mans, UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
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45
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Indra A, Menezes PW, Driess M. Photocatalytic and photosensitized water splitting: A plea for well-defined and commonly accepted protocol. CR CHIM 2018. [DOI: 10.1016/j.crci.2018.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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46
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Indra A, Song T, Paik U. Metal Organic Framework Derived Materials: Progress and Prospects for the Energy Conversion and Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705146. [PMID: 29984451 DOI: 10.1002/adma.201705146] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/30/2017] [Indexed: 06/08/2023]
Abstract
Exploring new materials with high efficiency and durability is the major requirement in the field of sustainable energy conversion and storage systems. Numerous techniques have been developed in last three decades to enhance the efficiency of the catalyst systems, control over the composition, structure, surface area, pore size, and moreover morphology of the particles. In this respect, metal organic framework (MOF) derived catalysts are emerged as the finest materials with tunable properties and activities for the energy conversion and storage. Recently, several nano- or microstructures of metal oxides, chalcogenides, phosphides, nitrides, carbides, alloys, carbon materials, or their hybrids are explored for the electrochemical energy conversion like oxygen evolution, hydrogen evolution, oxygen reduction, or battery materials. Interest on the efficient energy storage system is also growing looking at the practical applications. Though, several reviews are available on the synthesis and application of MOF and MOF derived materials, their applications for the electrochemical energy conversion and storage is totally a new field of research and developed recently. This review focuses on the systematic design of the materials from MOF and control over their inherent properties to enhance the electrochemical performances.
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Affiliation(s)
- Arindam Indra
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
| | - Taeseup Song
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
| | - Ungyu Paik
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
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Walter C, Menezes PW, Loos S, Dau H, Driess M. Facile Formation of Nanostructured Manganese Oxide Films as High-Performance Catalysts for the Oxygen Evolution Reaction. CHEMSUSCHEM 2018; 11:2554-2561. [PMID: 29888534 DOI: 10.1002/cssc.201800493] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/08/2018] [Indexed: 06/08/2023]
Abstract
The development of inexpensive, earth abundant, and bioinspired oxygen evolution electrocatalysts that are easily accessible and scalable is a principal requirement with regard to the feasibility of water splitting for large-scale chemical energy storage. A unique, versatile, and scalable approach has been developed to fabricate manganese oxide films from single layers to multilayers with a controlled thickness and high reproducibility. The produced MnOx films are composed of small nanostructures that are assembled closely in the form of porous sponge-like layers. The films were investigated for the electrochemical oxygen evolution reaction in alkaline media and demonstrate a remarkable activity as well as a superior stability of over 60 h. To elucidate the catalytically active species, as well as the striking structural characteristics, the films were further examined in depth by using SEM, TEM, and X-ray photoelectron spectroscopy, as well as quasi in situ extended X-ray absorption fine structure and X-ray absorption near edge structure analysis. The MnOx catalyst films excel because of a favorably high fraction of Mn3+ ions that are retained even after operation at oxidizing potentials. Upon exposure to oxidizing potentials in strongly alkaline aqueous electrolyte, the catalyst material maintains its structural integrity at the nanostructural, morphological, and atomic level.
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Affiliation(s)
- Carsten Walter
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Stefan Loos
- Fachbereich Physik, Freie Universität, Arnimallee 14, 14195, Berlin, Germany), E-mail: mailto
| | - Holger Dau
- Fachbereich Physik, Freie Universität, Arnimallee 14, 14195, Berlin, Germany), E-mail: mailto
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, 10623, Berlin, Germany
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Yu M, Chan CK, Tüysüz H. Coffee-Waste Templating of Metal Ion-Substituted Cobalt Oxides for the Oxygen Evolution Reaction. CHEMSUSCHEM 2018; 11:605-611. [PMID: 29194977 DOI: 10.1002/cssc.201701877] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/16/2017] [Indexed: 05/08/2023]
Abstract
A facile and scalable method using coffee waste grounds as a hard template has been developed to fabricate nanostructured Co3 O4 for the oxygen evolution reaction (OER). Co3 O4 incorporating metals with different valences (M/Co=1:4; M=Cu, Ni, Fe, Cr, and W) were also prepared with similar sheet-like structures comprising nanosized crystallites. After detailed characterization by X-ray diffraction, electron microscopy, and nitrogen sorption, the oxides were employed as OER electrocatalysts. Substitution of octahedral and tetrahedral sites of the spinel structure with divalent and trivalent transition metals (Cu, Ni, Fe, and Cr) increased the activity of Co3 O4 for the OER, whereas incorporation of hexavalent W led to formation of a second crystal phase and significantly higher electrocatalytic performance. Furthermore, this method is easily scaled up for mass production of Co3 O4 with the same nanostructure, which is highly desirable for large-scale application.
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Affiliation(s)
- Mingquan Yu
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Candace K Chan
- Materials Science and Engineering, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona, 85287, United States
| | - Harun Tüysüz
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
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Walter C, Menezes PW, Orthmann S, Schuch J, Connor P, Kaiser B, Lerch M, Driess M. A Molecular Approach to Manganese Nitride Acting as a High Performance Electrocatalyst in the Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2018; 57:698-702. [DOI: 10.1002/anie.201710460] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Carsten Walter
- Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Prashanth W. Menezes
- Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Steven Orthmann
- Department of ChemistrySolid State ChemistryTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Jona Schuch
- Institute of Material ScienceTechnische Universität Darmstadt Jovanka-Bontschits-Straße 2 64287 Darmstadt Germany
| | - Paula Connor
- Institute of Material ScienceTechnische Universität Darmstadt Jovanka-Bontschits-Straße 2 64287 Darmstadt Germany
| | - Bernhard Kaiser
- Institute of Material ScienceTechnische Universität Darmstadt Jovanka-Bontschits-Straße 2 64287 Darmstadt Germany
| | - Martin Lerch
- Department of ChemistrySolid State ChemistryTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
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Broicher C, Artz J, Palkovits S, Antoni H, Drögeler M, Morales DM, Stampfer C, Palkovits R. Mesoporous manganese phthalocyanine-based materials for electrochemical water oxidation via tailored templating. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02484c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical water splitting using non-noble metals as catalysts is of increasing importance for the future energy sector.
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Affiliation(s)
- C. Broicher
- Institut für Technische und Makromolekulare Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - J. Artz
- Institut für Technische und Makromolekulare Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - S. Palkovits
- Institut für Technische und Makromolekulare Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - H. Antoni
- Laboratory of Industrial Chemistry
- Ruhr-University Bochum
- 44780 Bochum
- Germany
| | - M. Drögeler
- 2nd Institute of Physics A
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - D. M. Morales
- Analytical Chemistry—Center for Electrochemical Sciences (CES)
- Ruhr-University Bochum
- 44780 Bochum
- Germany
| | - C. Stampfer
- 2nd Institute of Physics A
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - R. Palkovits
- Institut für Technische und Makromolekulare Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
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