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Singh M, Sharma HM, Gupta RK, Kumar A. Recent advancements and prospects in noble and non-noble electrocatalysts for materials methanol oxidation reactions. DISCOVER NANO 2024; 19:128. [PMID: 39143373 PMCID: PMC11324629 DOI: 10.1186/s11671-024-04066-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 07/16/2024] [Indexed: 08/16/2024]
Abstract
The direct methanol fuel cell (DMFC) represents a highly promising alternative power source for small electronics and automobiles due to its low operating temperatures, high efficiency, and energy density. The methanol oxidation process (MOR) constitutes a fundamental chemical reaction occurring at the positive electrode of a DMFC. Pt-based materials serve as widely utilized MOR electrocatalysts in DMFCs. Nevertheless, various challenges, such as sluggish reaction rates, high production costs primarily attributed to the expensive Pt-based catalyst, and the adverse effects of CO poisoning on the Pt catalysts, hinder the commercialization of DMFCs. Consequently, endeavors to identify an alternative catalyst to Pt-based catalysts that mitigate these drawbacks represent a critical focal point of DMFC research. In pursuit of this objective, researchers have developed diverse classes of MOR electrocatalysts, encompassing those derived from noble and non-noble metals. This review paper delves into the fundamental concept of MOR and its operational mechanisms, as well as the latest advancements in electrocatalysts derived from noble and non-noble metals, such as single-atom and molecule catalysts. Moreover, a comprehensive analysis of the constraints and prospects of MOR electrocatalysts, encompassing those based on noble metals and those based on non-noble metals, has been undertaken.
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Affiliation(s)
- Monika Singh
- Department of Chemistry, GLA University, Mathura-281406, India
| | | | - Ram K Gupta
- Department of Chemistry, Pittsburg State University, Pittsburg, KS, 66762, USA.
- National Institute of Material Advancement, Pittsburg, KS, 66762, USA.
| | - Anuj Kumar
- Department of Chemistry, GLA University, Mathura-281406, India.
- National Institute of Material Advancement, Pittsburg, KS, 66762, USA.
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2
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Tanwar N, Narjinari H, Sharma H, Dhole S, Jasra RV, Kumar A. Electrocatalytic Oxidation of Methanol and Ethanol with 3d-Metal Based Anodic Electrocatalysts in Alkaline Media Using Carbon Based Electrode Assembly. Inorg Chem 2024; 63:3005-3018. [PMID: 38300805 DOI: 10.1021/acs.inorgchem.3c03784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Homogeneous electrocatalytic systems based on readily available, earth-abundant, inexpensive base metals Ni, Co, and Cr have been formulated for the electro-oxidation of alcohols (methanol and ethanol) that constitute a key half-cell component of direct alcohol fuel cells (DAFCs). Notably, excellent results were obtained for both methanol as well as ethanol electro-oxidation while operating with a half-cell assembly based on all-non-noble working and counter electrode systems consisting of glassy carbon and graphite rod, respectively. Using NaOH as the supporting electrolyte, Ni/Co/Cr metal salts and their bis(iminopyridine) complexes have been used as anodic electrocatalysts for the alcohol half-cell reactions, and among them, catalytic systems based on Co outperformed the corresponding systems based on Ni and Cr. The system comprising CoCl2.·6H2O [10 mM] + NaOH [6 M] at room temperature emerged as the best electrocatalyst for both methanol [5 M] electro-oxidation (ca. 522.5 ± 13.5 mA cm-2 at 1.4 V) and ethanol [5 M] electro-oxidation (ca. 209 ± 25 mA cm-2 at 1.34 V). It was observed that regardless of the starting alcohol, the end product is carbon dioxide, all of which gets trapped as sodium carbonate (up to 97% yield), thereby mitigating any possible hazards of greenhouse gas emission. Inferences obtained from FETEM, FESEM, and EDS analysis of both the electrolyte solution and residues deposited on the electrode surface provide evidence for the mostly homogeneous nature of the reaction mixture with the molecular catalyst being the major contributor toward the electrocatalytic activity apart from the minor role played by trace heterogeneous particles. The current cell assembly operating with non-noble working and counter electrodes utilizing a catalytic system based on an earth-abundant, base metal salt/complex that not only results in good half-cell current densities for high-energy power-source DAFCs but also generates high-value sodium carbonate offers an exciting avenue.
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Affiliation(s)
- Niharika Tanwar
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Himani Narjinari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Harsh Sharma
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Sunil Dhole
- ChemDist Group of Companies, Plot No 144 A, Sector 7, PCNTDA Bhosari, Pune, Maharashtra 411026, India
| | - Raksh Vir Jasra
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- R&D Centre, Vadodara Manufacturing Division, Reliance Industries limited, Vadodara, Gujarat391346, India
| | - Akshai Kumar
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Jyoti and Bhupat Mehta School of Health Science & Technology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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Bhatti AK, Jabeen N, Bashir A, Khan LU, Bokhari SW, Akhter Z. Insight into a pure spinel Co 3O 4 and boron, nitrogen, sulphur (BNS) tri-doped Co 3O 4-rGO nanocomposite for the electrocatalytic oxygen reduction reaction. RSC Adv 2023; 13:28602-28612. [PMID: 37795048 PMCID: PMC10546277 DOI: 10.1039/d3ra04600a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/28/2023] [Indexed: 10/06/2023] Open
Abstract
The intricate problems concerning energy require innovative solutions. Herein, we propose a smart composite nano system that can be used in a sustainable and dichotomous manner to resolve energy crises. The current study describes a new way to synthesize a pure spinel cobalt oxide (Co3O4) and boron (B), nitrogen (N), and sulfur (S) tri-doped Co3O4-reduced graphite oxide (rGO) nanocomposite (CBNS). A hydrothermal method has been used for the synthesis of these nanomaterials. The synthesized nanocomposite was characterized by UV-visible spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), X-ray absorption spectroscopy (XAS), and transmission electron microscopy (TEM). The XRD results showed the formation of Co3O4 and B, N, S doped nanocomposite with high purity and crystallinity. XAS analysis elucidates the formation of spinel Co3O4 with tetrahedral and octahedral arrangement of cobalt ions. The peaks at 2.50 Å and 3.07 Å are due to the Co-Co bonding. The electrocatalytic oxygen reduction (ORR) was successfully implemented using these nanocomposites. The electrochemical study exhibits the better activity of the B, N, and S tri-doped Co3O4-rGO nanocomposite due to the mutual effect of B, N and S. The synthesized catalyst has maximum current density of 9.97 mA cm-2 with onset potential (Eonset) of 0.98 V in alkaline medium.
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Affiliation(s)
- Afia Kanwal Bhatti
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Naila Jabeen
- Nanoscience's and Technology Division, National Center for Physics, Quaid-i-Azam University Campus Shahdra Valley Road, P.O. Box 2141 Islamabad 44000 Pakistan
| | - Amna Bashir
- Department of Chemistry, Fatima Jinnah Women University The Mall Rawalpindi Pakistan
| | - Latif U Khan
- Synchrotron-Light for Experimental Science and Applications in the Middle East (SESAME) P.O. Box 7 Allan 19252 Jordan
| | - Syeda Wishal Bokhari
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences Ningbo 315201 Zhejiang People's Republic of China
| | - Zareen Akhter
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
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Mehmood S, Ahmed U, Kumar L, Sagadevan S, Hatamvand M, Zhan Y, Rahim NA, Ahmed W, Shakeel M. Semiconducting metal oxides-based electrodes as the photoanodes of dye-sensitized solar cells (DSSCs). DYE-SENSITIZED SOLAR CELLS 2022:103-136. [DOI: 10.1016/b978-0-12-818206-2.00004-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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5
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Reddy NR, Reddy PM, Mandal TK, Reddy KR, Shetti NP, Saleh TA, Joo SW, Aminabhavi TM. Synthesis of novel Co 3O 4 nanocubes-NiO octahedral hybrids for electrochemical energy storage supercapacitors. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 298:113484. [PMID: 34391101 DOI: 10.1016/j.jenvman.2021.113484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/28/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Fabrication of novel metal oxide nanostructured composites is a proficient approach to develop efficient energy storage devices and development of cost-free and eco-friendly metal oxide nanostructures for supercapacitor applications received considerable attention in recent years. The Co3O4 nanocubes-NiO octahedral structured composite was constructed using facile and one-step calcination process. Cyclic voltammetry, charge-discharge, and electrochemical impedance spectral techniques have been employed to analyze the specific capacitance of the synthesized nanostructures and the composites. Specific capacitance and cycling stability of the composites were evaluated with the pristine Co3O4 and NiO nanostructures. The composite showed a specific capacitance of 832 F g-1 at a current density of 0.25 A g-1, which was ~1.5 and ~1.9-times higher than pristine Co3O4 nanocubes and NiO octahedral structure, respectively. On the other hand, electrode showed approximately 50 % capacity retention at a higher current density (5 Ag-1) because of the uniform morphology of Co3O4 and NiO. The charge-discharge stability measurements of the composite showed an admirable specific capacitance retention capability, which was 94.5 % after 2000 continuous charge-discharge cycles at a current density of 5 A g-1. The superior electrochemical performance of the nano-composite was ascribed to synergistic effects and uniform morphology. Efficient nanostructure development using facile and one-step calcination process and electrochemical performance make the synthesized composite a promising device for supercapacitor applications.
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Affiliation(s)
- N Ramesh Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - P Mohan Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - T K Mandal
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Nagaraj P Shetti
- School of Advanced Sciences, KLE Technological University, Vidyanagar, Hubballi, 580031, Karnataka, India
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea.
| | - Tejraj M Aminabhavi
- School of Advanced Sciences, KLE Technological University, Hubballi, Karnataka, 580 031, India.
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6
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Electrocatalytic oxidation and flow injection analysis of formaldehyde at binary metal oxides (Co3O4–NiO and CuO–Co3O4) modified pencil graphite electrodes. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02861-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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7
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Hanif S, Iqbal N, Noor T, Zaman N, Vignarooban K. Electrocatalytic study of NiO-MOF with activated carbon composites for methanol oxidation reaction. Sci Rep 2021; 11:17192. [PMID: 34433893 PMCID: PMC8387380 DOI: 10.1038/s41598-021-96794-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 08/06/2021] [Indexed: 02/07/2023] Open
Abstract
In this work, the methanol oxidation reaction is investigated on Ni based metal organic frameworks (MOF) and its composites with biomass derived activated carbon. NiO-MOF and composites with activated carbon were synthesized using hydrothermal method. SEM, EDX, and XRD, FTIR, TGA techniques were used for characterization of composites. The electrochemical activity of catalysts for oxidation of methanol was tested using cyclic voltammetry (CV) in 1 M KOH and 3 M CH3OH on glassy carbon electrode in three electrode setup. The electrochemical performance shows the effect of activated carbon concentration on methanol oxidation. The electro-oxidation catalyzed by NiO-MOF with activated carbon (40 mg) composite exhibits a peak current density of 182.72 mA/cm2 at 0.89 V potential with a scan rate of 50 mV/s making it a potential catalyst for electrocatalysis of methanol.
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Affiliation(s)
- Saadia Hanif
- grid.412117.00000 0001 2234 2376USPCAS-E, National University of Sciences and Technology, Islamabad, 44000 Pakistan
| | - Naseem Iqbal
- grid.412117.00000 0001 2234 2376USPCAS-E, National University of Sciences and Technology, Islamabad, 44000 Pakistan
| | - Tayyaba Noor
- grid.412117.00000 0001 2234 2376SCME, National University of Sciences and Technology, Islamabad, 44000 Pakistan
| | - Neelam Zaman
- grid.412117.00000 0001 2234 2376USPCAS-E, National University of Sciences and Technology, Islamabad, 44000 Pakistan
| | - K. Vignarooban
- grid.412985.30000 0001 0156 4834Department of Physics, Faculty of Science, University of Jaffna, Jaffna, 40000 Sri Lanka
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Yaqoob L, Noor T, Iqbal N, Nasir H, Mumtaz A. Electrocatalytic performance of NiNH 2BDC MOF based composites with rGO for methanol oxidation reaction. Sci Rep 2021; 11:13402. [PMID: 34183691 PMCID: PMC8238968 DOI: 10.1038/s41598-021-92660-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/14/2021] [Indexed: 02/06/2023] Open
Abstract
Present work comprehensively investigated the electrochemical response of Nickel-2 Aminoterephthalic acid Metal-Organic Framework (NiNH2BDC) and its reduced graphitic carbon (rGO) based hybrids for methanol (CH3OH) oxidation reaction (MOR) in an alkaline environment. In a thorough analysis of a solvothermally synthesized Metal-Organic Frameworks (MOFs) and its reduced graphitic carbon-based hybrids, functional groups detection was performed by FTIR, the morphological study by SEM, crystal structure analysis via XRD, and elemental analysis through XPS while electrochemical testing was accomplished by Chronoamperometry (CA), Cyclic Voltametric method (CV), Electrochemically Active Surface Area (EASA), Tafel slope (b), Electron Impedance Spectroscopy (EIS), Mass Activity, and roughness factor. Among all the fabricated composites, NiNH2BDC MOF/5 wt% rGO hybrid by possessing an auspicious current density (j) of 267.7 mA/cm2 at 0.699 V (vs Hg/HgO), a Tafel slope value of 60.8 mV dec-1, EASA value of 15.7 cm2, and by exhibiting resistance of 13.26 Ω in a 3 M CH3OH/1 M NaOH solution displays grander electrocatalytic activity as compared to state-of-the-art platinum-based electrocatalysts.
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Affiliation(s)
- Lubna Yaqoob
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Tayyaba Noor
- School of Chemical and Materials Engineering (SCME), National University of Sciences and Technology (NUST), Islamabad, Pakistan.
| | - Naseem Iqbal
- U.S-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad, 44000, Pakistan
| | - Habib Nasir
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Asad Mumtaz
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad, Pakistan
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10
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De A, Bera R, Paria S, Karan SK, Das AK, Maitra A, Si SK, Halder L, Ojha S, Khatua BB. Nanostructured cigarette wrapper encapsulated
PDMS‐RGO
sandwiched composite for high performance
EMI
shielding applications. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25536] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Anurima De
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Ranadip Bera
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Sarbaranjan Paria
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Sumanta Kumar Karan
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Amit Kumar Das
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Anirban Maitra
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Suman Kumar Si
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Lopamudra Halder
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Suparna Ojha
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Bhanu Bhusan Khatua
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
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11
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Yuda A, Ashok A, Kumar A. A comprehensive and critical review on recent progress in anode catalyst for methanol oxidation reaction. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2020.1802811] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Afdhal Yuda
- Department of Chemical Engineering, Qatar University, Doha, Qatar
| | - Anchu Ashok
- Department of Chemical Engineering, Qatar University, Doha, Qatar
| | - Anand Kumar
- Department of Chemical Engineering, Qatar University, Doha, Qatar
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12
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Noor T, Pervaiz S, Iqbal N, Nasir H, Zaman N, Sharif M, Pervaiz E. Nanocomposites of NiO/CuO Based MOF with rGO: An Efficient and Robust Electrocatalyst for Methanol Oxidation Reaction in DMFC. NANOMATERIALS 2020; 10:nano10081601. [PMID: 32824116 PMCID: PMC7466713 DOI: 10.3390/nano10081601] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 11/26/2022]
Abstract
In this work a novel bimetallic nickel oxide/copper oxide metal–organic framework (NiO/CuO MOF) has been developed by using two linkers: Benzene Dicarboxylic acid (BDC) and Pyrazine. The composites of NiO/CuO MOF with different amounts of reduced graphene oxide (rGO) were synthesized through a hydrothermal method and subsequently characterized by multiple significant techniques like XRD, SEM, EDX, FTIR and Raman IR for an investigation of their structural and morphological properties. The prepared series of material was later employed for electrochemical oxidation of methanol, tested by cyclic voltammetry (CV) in basic medium on a modified glassy carbon electrode (GCE). The electrochemical response depicts that increasing concentration of rGO enhances the electrocatalytic activity of the catalyst for methanol oxidation reaction (MOR). The catalyzed oxidation reaction of methanol by NiO/CuO MOF and rGO-NiO/CuO MOF composites give a superlative current density of 437. 28 mA/cm2 at 0.9 V potential at 50 mV/s scan rate. This activity makes it a promising catalytic material for electrolysis of methanol in direct methanol fuel cell (DMFC).
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Affiliation(s)
- Tayyaba Noor
- School of Chemical & Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan;
- Correspondence: ; Tel.: +92-51-90855121
| | - Sadaf Pervaiz
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (S.P.); (H.N.)
| | - Naseem Iqbal
- U.S-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (N.I.); (N.Z.)
| | - Habib Nasir
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (S.P.); (H.N.)
| | - Neelam Zaman
- U.S-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (N.I.); (N.Z.)
| | - Muhammad Sharif
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
| | - Erum Pervaiz
- School of Chemical & Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan;
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13
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Liu BC, Chen SL, Ling XY, Li QX, Xu CW, Liu ZL. High activity of NiCo 2O 4 promoted Pt on three-dimensional graphene-like carbon for glycerol electrooxidation in an alkaline medium. RSC Adv 2020; 10:24705-24711. [PMID: 35516209 PMCID: PMC9055226 DOI: 10.1039/c9ra09896h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 04/11/2020] [Indexed: 02/04/2023] Open
Abstract
Spinel oxide NiCo2O4 supported on a three-dimensional hierarchically porous graphene-like carbon (3D HPG) material has been firstly used to enhance the activity of Pt for glycerol electrooxidation. The addition of NiCo2O4 into the Pt/HPG catalyst can significantly improve the catalytic performance for glycerol oxidation. When NiCo2O4 is added to the Pt/HPG catalyst, the onset potential is 25 mV more negative than that on the Pt/HPG catalyst without NiCo2O4. The current density at -0.3 V on the Pt-NiCo2O4 (wt 10 : 1)/HPG electrode is 1.3 times higher than that on the Pt (30 wt%)/HPG electrode. The Pt-NiCo2O4 electrode presented in this work shows great potential as an electrocatalyst for glycerol electrooxidation in an alkaline medium.
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Affiliation(s)
- Bo-Cai Liu
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 51006 China
| | - Shao-Li Chen
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 51006 China
| | - Xiao-Yu Ling
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 51006 China
| | - Qiao-Xian Li
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 51006 China
| | - Chang-Wei Xu
- School of Chemistry and Chemical Engineering, Guangzhou University Guangzhou 51006 China
| | - Zi-Li Liu
- Guangzhou Key Laboratory for New Energy and Green Catalysis, Guangzhou University Guangzhou 510006 China
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14
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Yaqoob L, Noor T, Iqbal N, Nasir H, Zaman N, Rasheed L, Yousuf M. Development of an Efficient Non‐Noble Metal Based Anode Electrocatalyst to Promote Methanol Oxidation Activity in DMFC. ChemistrySelect 2020. [DOI: 10.1002/slct.202000705] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lubna Yaqoob
- School of Natural Sciences (SNS) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Tayyaba Noor
- School of Chemical and Materials Engineering (SCME) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Naseem Iqbal
- US-Pakistan Centre for Advanced Studies in Energy (USPCAS−E) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Habib Nasir
- School of Natural Sciences (SNS) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Neelam Zaman
- US-Pakistan Centre for Advanced Studies in Energy (USPCAS−E) National University of Sciences and Technology (NUST) Islamabad Pakistan
| | - Lubna Rasheed
- Department of Chemistry Division of Science and Technology University of Education, Township Lahore Pakistan
| | - Muhammad Yousuf
- Ulsan National Institute of Science and Technology Ulsan South Korea
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15
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Sagadevan S, Marlinda AR, Johan MR, Umar A, Fouad H, Alothman OY, Khaled U, Akhtar MS, Shahid MM. Reduced graphene/nanostructured cobalt oxide nanocomposite for enhanced electrochemical performance of supercapacitor applications. J Colloid Interface Sci 2019; 558:68-77. [PMID: 31585223 DOI: 10.1016/j.jcis.2019.09.081] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/19/2019] [Accepted: 09/21/2019] [Indexed: 01/25/2023]
Abstract
We demonstrate the preparation of nanostructures cobalt oxide/reduced graphene oxide (Co3O4/rGO) nanocomposites by a simple one-step cost-effective hydrothermal technique for possible electrode materials in supercapacitor application. The X-ray diffraction patterns were employed to confirm the nanocomposite crystal system of Co3O4/rGO by demonstrating the existence of normal cubic spinel structure of Co3O4 in the matrix of Co3O4/rGO nanocomposite. FTIR and FT-Raman studies manifested the structural behaviour and quality of prepared Co3O4/rGO nanocomposite. The optical properties of the nanocomposite Co3O4/rGO have been investigated by UV absorption spectra. The SEM/TEM images showed that the Co3O4 nanoparticles in the Co3O4/rGO nanocomposites were covered over the surface of the rGO sheets. The electrical properties were analyzed in terms of real and imaginary permittivity, dielectric loss and AC conductivity. The electrocatalytic activities of synthesized Co3O4/rGO nanocomposites were determined by cyclic voltammetry and charge-discharge cycle to evaluate the supercapacitive performance. The specific capacitance of 754 Fg-1 was recorded for Co3O4/rGO nanocomposite based electrode in three electrode cell system. The electrode material exhibited an acceptable capability and excellent long-term cyclic stability by maintaining 96% after 1000 continuous cycles. These results showed that the prepared sample could be an ideal candidate for high-energy application as electrode materials. The synthesized Co3O4/rGO nanocomposite is a versatile material and can be used in various application such as fuel cells, electrochemical sensors, gas sensors, solar cells, and photocatalysis.
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Affiliation(s)
- Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, Malaysia.
| | - A R Marlinda
- Nanotechnology & Catalysis Research Centre, University of Malaya, Malaysia
| | - Mohd Rafie Johan
- Nanotechnology & Catalysis Research Centre, University of Malaya, Malaysia
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices, Najran University, Najran 11001, Saudi Arabia.
| | - H Fouad
- Applied Medical Science Dept., Community College, King Saud University, Riyadh, Saudi Arabia; Department of Biomedical Engineering, Faculty of Engineering, Helwan University, Egypt
| | - Othman Y Alothman
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Usama Khaled
- Department of Electrical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia; Department of Electrical Engineering, Faculty of Energy Engineering, Aswan University, Aswan 81528, Egypt
| | - M S Akhtar
- New and Renewable Energy Materials Development Center (NewREC), Chonbuk National University, Jeonbuk 56332, Republic of Korea.
| | - M M Shahid
- Higher Institution Centre of Excellence (HICoE), UM Power Energy Dedicated Advanced Centre (UMPEDAC), 59990 Kuala Lumpur, Malaysia
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16
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Noor T, Ammad M, Zaman N, Iqbal N, Yaqoob L, Nasir H. A Highly Efficient and Stable Copper BTC Metal Organic Framework Derived Electrocatalyst for Oxidation of Methanol in DMFC Application. Catal Letters 2019. [DOI: 10.1007/s10562-019-02904-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Song C, Zhao Z, Sun X, Zhou Y, Wang Y, Wang D. In Situ Growth of Ag Nanodots Decorated Cu 2 O Porous Nanobelts Networks on Copper Foam for Efficient HER Electrocatalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804268. [PMID: 30650234 DOI: 10.1002/smll.201804268] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/01/2018] [Indexed: 06/09/2023]
Abstract
Developing earth-abundant electrocatalysts for high-efficiency hydrogen evolution reaction (HER) has become one of the leading research frontiers in energy conversion. Here, the design and in situ growth of Ag nanodots decorated Cu2 O porous nanobelts networks on Cu foam (denoted as Ag@Cu2 O/CF) are carried out via a simple one-pot solution strategy at room temperature. Serving as self-supporting electrocatalysts, Ag@Cu2 O porous nanobelts provide plentiful active sites, and the 3D hybrid foams provide fast transportation for electrolyte and short diffusion path for newly formed H2 bubbles, which result in excellent electrocatalytic HER activity and long-term stability. Owing to the synergistic effect between Ag nanodots and Cu2 O porous nanobelts and CF, the hybrid electrocatalyst exhibits a low Tafel slope of 58 mV dec-1 , a small overpotential of 108 mV at 10 mA cm-2 , and high durability for more than 20 h at a potential of 200 mV for HER in 1.0 mol L-1 KOH solution.
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Affiliation(s)
- Caixia Song
- Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, Key Laboratory of Eco-chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao, 266042, P. R. China
| | - Zeyu Zhao
- Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, Key Laboratory of Eco-chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao, 266042, P. R. China
| | - Xinxin Sun
- Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, Key Laboratory of Eco-chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Yanhong Zhou
- Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, Key Laboratory of Eco-chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Ying Wang
- Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, Key Laboratory of Eco-chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Debao Wang
- Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, Key Laboratory of Eco-chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
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18
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Shahid MM, Rameshkumar P, Numan A, Shahabuddin S, Alizadeh M, Khiew PS, Chiu WS. A cobalt oxide nanocubes interleaved reduced graphene oxide nanocomposite modified glassy carbon electrode for amperometric detection of serotonin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:388-395. [DOI: 10.1016/j.msec.2019.02.107] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 02/22/2019] [Accepted: 02/27/2019] [Indexed: 12/27/2022]
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19
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Nickel and cobalt in situ grown in 3-dimensional hierarchical porous graphene for effective methanol electro-oxidation reaction. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Vinodhkumar G, Ramya R, Potheher IV, Vimalan M, Peter AC. Synthesis of reduced graphene oxide/Co3O4 nanocomposite electrode material for sensor application. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03777-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Srinivasan P, Kulandaisamy AJ, Mani GK, Babu KJ, Tsuchiya K, Rayappan JBB. Development of an acetone sensor using nanostructured Co3O4 thin films for exhaled breath analysis. RSC Adv 2019; 9:30226-30239. [PMID: 35530198 PMCID: PMC9072200 DOI: 10.1039/c9ra04230j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 09/16/2019] [Indexed: 11/21/2022] Open
Abstract
In recent times, the development of breath sensors for the detection of Diabetic Keto-Acidosis (DKA) has been gaining prominent importance in the field of health care and advanced diagnostics. Acetone is one of the prominent biomarkers in the exhaled breath of persons affected by DKA. In this background, nanostructured cobalt oxide sensing elements were fabricated using a spray pyrolysis technique at different deposition temperatures (473 to 773 K in steps of 100 K) towards the fabrication of an acetone sensor. The influence of deposition temperature on the various properties of the nanostructured cobalt oxide thin films was investigated. Formation of cubic spinel phase cobalt oxide was confirmed from the structural analysis. The shifting of plane orientation from (3 1 1) to (2 2 0) at 773 K deposition temperature revealed the migration of cobalt atoms to the highly favorable energy positions. Further, the downshifted peak absorption wavelength and upshifted PL profile at higher deposition temperature confirmed the migration of cobalt ions. The sensor fabricated at higher deposition temperature (773 K) showed a sensing response of 235 at room temperature towards 50 ppm of acetone. Also, the fabricated sensor showed a lower detection limit (LOD) of 1 ppm with the response–recovery times of 6 and 4 s, respectively. The LOD reported here is lower than the minimum threshold level (1.71 ppm) signifying the presence of DKA. We report the fabrication of a breath sensor using nanostructured Co3O4 thin films for the detection of acetone in exhaled breath, which is one of the prominent bio-markers of Diabetic Ketoacidosis (DKA).![]()
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Affiliation(s)
- Parthasarathy Srinivasan
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB)
- School of Electrical & Electronics Engineering (SEEE)
- SASTRA Deemed University
- Thanjavur 613 401
- India
| | - Arockia Jayalatha Kulandaisamy
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB)
- School of Electrical & Electronics Engineering (SEEE)
- SASTRA Deemed University
- Thanjavur 613 401
- India
| | - Ganesh Kumar Mani
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB)
- School of Electrical & Electronics Engineering (SEEE)
- SASTRA Deemed University
- Thanjavur 613 401
- India
| | - K. Jayanth Babu
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB)
- School of Electrical & Electronics Engineering (SEEE)
- SASTRA Deemed University
- Thanjavur 613 401
- India
| | | | - John Bosco Balaguru Rayappan
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB)
- School of Electrical & Electronics Engineering (SEEE)
- SASTRA Deemed University
- Thanjavur 613 401
- India
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22
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Babar P, Lokhande A, Shin HH, Pawar B, Gang MG, Pawar S, Kim JH. Cobalt Iron Hydroxide as a Precious Metal-Free Bifunctional Electrocatalyst for Efficient Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14. [PMID: 29251422 DOI: 10.1002/smll.201702568] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/26/2017] [Indexed: 05/15/2023]
Abstract
Highly efficient and stable electrocatalysts from inexpensive and earth-abundant elements are emerging materials in the overall water splitting process. Herein, cobalt iron hydroxide nanosheets are directly deposited on nickel foam by a simple and rapid electrodeposition method. The cobalt iron hydroxide (CoFe/NF) nanosheets not only allow good exposure of the highly active surface area but also facilitate the mass and charge transport capability. As an anode, the CoFe/NF electrocatalyst displays excellent oxygen evolution reaction catalytic activity with an overpotential of 220 mV at a current density of 10 mA cm-2 . As a cathode, it exhibits good performance in the hydrogen evolution reaction with an overpotential of 110 mV, reaching a current density of 10 mA cm-2 . When CoFe/NF electrodes are used as the anode and the cathode for water splitting, a low cell voltage of 1.64 V at 10 mA cm-2 and excellent stability for 50 h are observed. The present work demonstrates a possible pathway to develop a highly active and durable substitute for noble metal electrocatalysts for overall water splitting.
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Affiliation(s)
- Pravin Babar
- Optoelectronic Convergence Research Center, Department of Materials Science and Engineering, Chonnam National University, Gwangju, 500-757, South Korea
| | - Abhishek Lokhande
- Optoelectronic Convergence Research Center, Department of Materials Science and Engineering, Chonnam National University, Gwangju, 500-757, South Korea
| | - Hyeong Ho Shin
- Optoelectronic Convergence Research Center, Department of Materials Science and Engineering, Chonnam National University, Gwangju, 500-757, South Korea
| | - Bharati Pawar
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 100-715, South Korea
| | - Myeng Gil Gang
- Optoelectronic Convergence Research Center, Department of Materials Science and Engineering, Chonnam National University, Gwangju, 500-757, South Korea
| | - Sambhaji Pawar
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 100-715, South Korea
| | - Jin Hyeok Kim
- Optoelectronic Convergence Research Center, Department of Materials Science and Engineering, Chonnam National University, Gwangju, 500-757, South Korea
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23
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Shahid MM, Rameshkumar P, Basirunc WJ, Wijayantha U, Chiu WS, Khiew PS, Huang NM. An electrochemical sensing platform of cobalt oxide@gold nanocubes interleaved reduced graphene oxide for the selective determination of hydrazine. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.10.157] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Applicable anode based on Co3O4–SrCO3 heterostructure nanorods-incorporated CNFs with low-onset potential for DUFCs. APPLIED NANOSCIENCE 2017. [DOI: 10.1007/s13204-017-0601-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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25
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Binary nanocomposite based on Co3O4 nanocubes and multiwalled carbon nanotubes as an ultrasensitive platform for amperometric determination of dopamine. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2269-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Cobalt oxide nanocubes interleaved reduced graphene oxide as an efficient electrocatalyst for oxygen reduction reaction in alkaline medium. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.088] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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27
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Dakshinamoorthy P, Vaithilingam S. Platinum–copper doped poly(sulfonyldiphenol/cyclophosphazene/benzidine)–graphene oxide composite as an electrode material for single stack direct alcohol alkaline fuel cells. RSC Adv 2017. [DOI: 10.1039/c7ra04525e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic representation of the preparation of a metal nanoparticle (Pt and Pt–Cu)-decorated poly(SDP/CP/BZ)–GO composite.
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Affiliation(s)
- Prasanna Dakshinamoorthy
- Nanotech Research Lab
- Department of Chemistry
- University College of Engineering Villupuram, (A Constituent College of Anna University, Chennai)
- Villupuram-605 103
- India
| | - Selvaraj Vaithilingam
- Nanotech Research Lab
- Department of Chemistry
- University College of Engineering Villupuram, (A Constituent College of Anna University, Chennai)
- Villupuram-605 103
- India
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28
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Wang S, Yu D, He X. Retracted Article: A facile strategy to fabricate nitrogen-doped graphene aerogel supported Fe 3N nanoparticles as efficient electrocatalysts for the oxygen reduction reaction. NEW J CHEM 2017. [DOI: 10.1039/c6nj04114k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Wang S, Yu D, He X. A facile strategy to fabricate nitrogen-doped graphene aerogel-supported Fe3N nanoparticles as efficient electrocatalysts for the oxygen reduction reaction. NEW J CHEM 2017. [DOI: 10.1039/c6nj02679f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a novel hybrid composed of iron nitride and nitrogen-functionalized graphene aerogel (Fe3N/N-GA) was fabricated and used as an electrode material for the oxygen reduction reaction (ORR).
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Affiliation(s)
- Shufeng Wang
- Department of Chemistry and Chemical Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Dingling Yu
- Department of Chemistry and Chemical Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
| | - Xingquan He
- Department of Chemistry and Chemical Engineering
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
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30
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Enrique Samaniego J, Velázquez-Salazar JJ, Mendoza-Cruz R, Bazán-Díaz L, Plascencia-Villa G, Arellano-Jiménez MJ, Perez JF, José-Yacamán M. Integrative structural and advanced imaging characterization of manganese oxide nanotubes doped with cobaltite. CrystEngComm 2017. [DOI: 10.1039/c7ce00315c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Yusoff N, Kumar SV, Rameshkumar P, Pandikumar A, Shahid MM, Rahman MA, Huang NM. A Facile Preparation of Titanium Dioxide-Iron Oxide@Silicon Dioxide Incorporated Reduced Graphene Oxide Nanohybrid for Electrooxidation of Methanol in Alkaline Medium. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.190] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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Numan A, Duraisamy N, Saiha Omar F, Mahipal YK, Ramesh K, Ramesh S. Enhanced electrochemical performance of cobalt oxide nanocube intercalated reduced graphene oxide for supercapacitor application. RSC Adv 2016. [DOI: 10.1039/c6ra00160b] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We investigated different molar concentrations of cobalt precursor intercalated reduced graphene oxide (rGO) as possible electrode materials for supercapacitors.
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Affiliation(s)
- Arshid Numan
- Centre for Ionics University of Malaya
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - Navaneethan Duraisamy
- Centre for Ionics University of Malaya
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - Fatin Saiha Omar
- Centre for Ionics University of Malaya
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - Y. K. Mahipal
- Centre for Ionics University of Malaya
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - K. Ramesh
- Centre for Ionics University of Malaya
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - S. Ramesh
- Centre for Ionics University of Malaya
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
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33
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Shahabuddin S, Sarih NM, Mohamad S, Atika Baharin SN. Synthesis and characterization of Co3O4 nanocube-doped polyaniline nanocomposites with enhanced methyl orange adsorption from aqueous solution. RSC Adv 2016. [DOI: 10.1039/c6ra04757b] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Co3O4 nanocube polyaniline nanocomposites have been successfully synthesised. They show enhanced surface properties and a greater adsorption capacity to remove MO efficiently within a short duration of time.
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Affiliation(s)
- Syed Shahabuddin
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
| | | | - Sharifah Mohamad
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
- Malaysia
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34
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Su W, Fu Y, Wang T, Yu Y, Hu J. A cobalt nanoparticle ion-implantation-modified indium tin oxide electrode for direct electrocatalytic oxidation of methanol in alkaline media. RSC Adv 2015. [DOI: 10.1039/c5ra14313f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SEM images of the CoNPs/ITO electrode (A), and the CoNPs/ITO electrode exhibits a good electrocatalytic ability and stability towards direct methanol oxidation in alkaline medium (B, C and D).
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Affiliation(s)
- Wen Su
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- PR China
| | - Yingyi Fu
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- PR China
| | - Tong Wang
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- PR China
| | - Yanan Yu
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- PR China
| | - Jingbo Hu
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- PR China
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education
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35
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Ehsan MA, Hakeem AS, Khaledi H, Mazhar M, Shahid MM, Pandikumar A, Huang NM. Fabrication of CuO–1.5ZrO2 composite thin film, from heteronuclear molecular complex and its electrocatalytic activity towards methanol oxidation. RSC Adv 2015. [DOI: 10.1039/c5ra18053h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CuO–1.5ZrO2 composite electrodes fabricated from a single source precursor [Cu4Zr6(μ-O)8(dmap)4(OAc)12]·H2O have been utilized for the oxidation of methanol.
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Affiliation(s)
- Muhammad Ali Ehsan
- Center of Research Excellence in Nanotechnology (CENT)
- King Fahd University of Petrolium & Minerals
- Saudia Arabia
| | - Abbas Saeed Hakeem
- Center of Research Excellence in Nanotechnology (CENT)
- King Fahd University of Petrolium & Minerals
- Saudia Arabia
| | - Hamid Khaledi
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603-Kuala Lumpur
- Malaysia
| | - Muhammad Mazhar
- Department of Chemistry
- Faculty of Science
- University of Malaya
- 50603-Kuala Lumpur
- Malaysia
| | | | - Alagarsamy Pandikumar
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603-Kuala Lumpur
- Malaysia
| | - Nay Ming Huang
- Department of Physics
- Faculty of Science
- University of Malaya
- 50603-Kuala Lumpur
- Malaysia
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36
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Shahabuddin S, Sarih NM, Ismail FH, Shahid MM, Huang NM. Synthesis of chitosan grafted-polyaniline/Co3O4 nanocube nanocomposites and their photocatalytic activity toward methylene blue dye degradation. RSC Adv 2015. [DOI: 10.1039/c5ra11237k] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Co3O4 nanocube-doped chitosan-grafted-polyaniline nanocomposites have been successfully synthesised. The synthesised polymeric nanocomposite was stable and exhibits greater photocatalytic activity to degrade MB efficiently within a short duration of time.
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Affiliation(s)
- Syed Shahabuddin
- Polymer Research Laboratory
- Chemistry Department
- University of Malaya
- Faculty of Science
- 50603 Kuala Lumpur
| | | | - Fatem Hamime Ismail
- Polymer Research Laboratory
- Chemistry Department
- University of Malaya
- Faculty of Science
- 50603 Kuala Lumpur
| | - Muhammad Mehmood Shahid
- Low Dimensional Materials Research Centre
- Physics Department
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
| | - Nay Ming Huang
- Low Dimensional Materials Research Centre
- Physics Department
- Faculty of Science
- University of Malaya
- 50603 Kuala Lumpur
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