1
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Rao KA, Mazhar ME, Ahmad J. Facile hydrothermal synthesis of a tri-metallic Cu-Mn-Ni oxide-based electrochemical pseudo capacitor. Dalton Trans 2024. [PMID: 39028037 DOI: 10.1039/d4dt00142g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Transition metal oxide nanocomposites with heterostructures have gained a lot of attention for use in supercapacitors owing to their low cost, high surface area, fast transport of ions and electrons and high specific capacitance due to efficacious interplay between the electrode and the electrolytes. In this study, we fabricated tri-metallic Cu, Mn, Ni(CMNO), bi-metallic Mn, Ni(MNO) and mono-metallic Ni(NO) oxides through a facile hydrothermal route. All the fabricated materials were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and energy dispersive spectroscopy (EDX), and their electrochemical properties were studied using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge (GCD). The CMNO material showed remarkable electrochemical performance with a specific capacitance of 790.63 F g-1 at a current density of 1 A g-1, surpassing the performance of MNO (438.4 F g-1) and NO (290.82 F g-1). Furthermore, CMNO showed high cycling stability with a retention of 96.7% specific capacitance after 8000 cycles. Based on remarkable and unique properties, the CMNO material is regarded as a promising material for new-generation pseudo-capacitor applications.
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Affiliation(s)
- Komal Ali Rao
- Institute of Physics, Bahauddin Zakariya University, Multan-60800, Pakistan.
| | | | - Javed Ahmad
- Institute of Physics, Bahauddin Zakariya University, Multan-60800, Pakistan.
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2
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Wickramaratne KMK, Ramezanipour F. Electrocatalytic Properties of Quasi-2D Oxides LaSrMn 0.5M 0.5O 4 (M = Co, Ni, Cu, and Zn) for Hydrogen and Oxygen Evolution Reactions. Molecules 2024; 29:3107. [PMID: 38999059 PMCID: PMC11243240 DOI: 10.3390/molecules29133107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/18/2024] [Accepted: 06/27/2024] [Indexed: 07/14/2024] Open
Abstract
Designing cost-effective and highly efficient electrocatalysts for water splitting is a significant challenge. We have systematically investigated a series of quasi-2D oxides, LaSrMn0.5M0.5O4 (M = Co, Ni, Cu, Zn), to enhance the electrocatalytic properties of the two half-reactions of water-splitting, namely oxygen and hydrogen evolution reactions (OER and HER). The four materials are isostructural, as confirmed by Rietveld refinements with X-ray diffraction. The oxygen contents and metal valence states were determined by iodometric titrations and X-ray photoelectron spectroscopy. Electrical conductivity measurements in a wide range of temperatures revealed semiconducting behavior for all four materials. Electrocatalytic properties were studied for both half-reactions of water-splitting, namely, oxygen-evolution and hydrogen-evolution reactions (OER and HER). For the four materials, the trends in both OER and HER were the same, which also matched the trend in electrical conductivities. Among them, LaSrMn0.5Co0.5O4 showed the best bifunctional electrocatalytic activity for both OER and HER, which may be attributed to its higher electrical conductivity and favorable electron configuration.
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3
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Mariappan A, Mannu P, Ranjith KS, Nga TTT, Han YK, Dong CL, Dharman RK, Oh TH. Novel Heterostructure-Based CoFe and Cobalt Oxysulfide Nanocubes for Effective Bifunctional Electrocatalytic Water and Urea Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310112. [PMID: 38221688 DOI: 10.1002/smll.202310112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/03/2024] [Indexed: 01/16/2024]
Abstract
The development of effective oxygen evolution reaction (OER) and urea oxidation reaction (UOR) on heterostructure electrocatalysts with specific interfaces and characteristics provides a distinctive character. In this study, heterostructure nanocubes (NCs) comprising inner cobalt oxysulfide (CoOS) NCs and outer CoFe (CF) layered double hydroxide (LDH) are developed using a hydrothermal methodology. During the sulfidation process, the divalent sulfur ions (S2-) are released from the breakdown of the sulfur source and react with the Co-precursors on the surface leading to the transformation of CoOH nanorods into CoOS nanocubes. Further, X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) analyses reveal that the interactions at the interface of the CF@CoOS NCs significantly altered the electronic structure, thus enhancing the electrocatalytic performance. The optimal catalysts exhibited effective OER and UOR activities, the attained potentials are 1.51 and 1.36 V. This remarkable performance is attributable to the induction of electron transfer from the CoFe LDH to CoOS, which reduces the energy barrier of the intermediates for the OER and UOR. Furthermore, an alkaline water and urea two-cell electrolyzer assembled using CF@CoOS-2 NCs and Pt/C as the anode and cathode requires a cell voltage of 1.63 and 1.56 V along with a durability performance.
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Affiliation(s)
- Athibala Mariappan
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Pandian Mannu
- Department of Physics, Tamkang University, New Taipei City, 25137, Taiwan
| | - Kugalur Shanmugam Ranjith
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 100-715, Republic of Korea
| | - Ta Thi Thuy Nga
- Department of Physics, Tamkang University, New Taipei City, 25137, Taiwan
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 100-715, Republic of Korea
| | - Chung-Li Dong
- Department of Physics, Tamkang University, New Taipei City, 25137, Taiwan
| | | | - Tae Hwan Oh
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea
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4
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Yan M, Li Y, Liu C, Zhao Z, Shan Y, Li F, Sun L, Li F. Promoting H 2 generation of BiFeO 3 photocathodes by a catalyst-sensitizer dyad linked with Sn(dipicolinate) 2. Chem Commun (Camb) 2024; 60:5506-5509. [PMID: 38690677 DOI: 10.1039/d4cc01091d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
An innovative method for the fabrication of a catalyst-sensitizer dyad-based photoelectrode was developed by using the coordinated interaction between the pyridine-2,6-dicarboxylic group and Sn4+. A dyad (C1 + PDI) was loaded on the mesoporous BiFeO3 (BFO) photocathode for light-driven H2 generation. The dyad could expand the light absorption range and promote the surface charge separation of BFO, resulting in an enhanced photocurrent.
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Affiliation(s)
- Meiqi Yan
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
| | - Yingzheng Li
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
| | - Chang Liu
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
| | - Ziqi Zhao
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
| | - Yu Shan
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
| | - Fei Li
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, Hangzhou 310024, China
| | - Fusheng Li
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, China.
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5
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Hsuan Joseph Sung C, Gong BY, Yu H, Ede SR, Cruz L, Fang H, Sarmiento E, Zang W, Barrows GL, Kisailus D. Mechanistic Insights into the Synthesis of Nickel-Graphene Nanostructures for Gas Sensors. SMALL METHODS 2024:e2400245. [PMID: 38763987 DOI: 10.1002/smtd.202400245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/17/2024] [Indexed: 05/21/2024]
Abstract
Toxic gases are used in different types of industries and thus, present a potential health hazard. Therefore, highly sensitive gas sensing materials are essential for the safety of those operating in their environments. A process involving electrospinning polymer solutions impregnated with transition metal ions are developed to yield nanofibers that are annealed to form graphitic carbon / nickel nanoparticle-based fibers for gas sensing applications. The performance of these gas sensors is strongly related to the ability to control the material parameters of the active material. As the formation of these nanostructures, which nucleate within solid carbon scaffolds, have not been investigated, the growth mechanisms are look to understand in order to exert control over the resulting material. Evaluation of these growth mechanisms are conducted through a combination of thermogravimetric analysis with mass spectrometry (TGA-MS), x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and x-ray photoelectron spectroscopy (XPS) and reveal nucleation of nickel at the onset of the polymer scaffold decomposition with subsequent growth processes, including surface diffusion, aggregation, coalescence and evaporation condensation, that are activated at different temperatures. Gas sensing experiments conducted on analyte gases demonstrate good sensitivity and response times, and significant potential for use in other energy and environmental applications.
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Affiliation(s)
- Chao Hsuan Joseph Sung
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Bryan Yuji Gong
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Haitao Yu
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Sivasankara Rao Ede
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Luz Cruz
- Materials Science and Engineering Program, University of California, Riverside, CA, 95251, USA
| | - Herry Fang
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Ezra Sarmiento
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | - Wenjie Zang
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
| | | | - David Kisailus
- Department of Materials Science and Engineering, University of California, Irvine, CA, 92697, USA
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6
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Suresh P, Natarajan A, Rajaram A. Multi-Active Sites Loaded NiCu-MOF@MWCNTs as a Bifunctional Electrocatalyst for Electrochemical Water Splitting Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9509-9519. [PMID: 38648179 DOI: 10.1021/acs.langmuir.4c00054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Water can be sustainably and ecologically converted by electrocatalysts into hydrogen and oxygen, which, in turn, can be converted into energy. However, the advancement of using water as green energy is hampered by limitations in the study of high-performance catalysts. The purpose of this study was to construct an electrocatalyst by anchoring well-dispersed multiwalled carbon nanotubes (MWCNTs) on nickel-copper (NiCu-MOF) nanoblocks through a simple solvothermal method. The synthesis of NiCu-MOF@MWCNTs demonstrated exceptional electrocatalytic performance for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in an alkaline medium. At 10 mA cm-2 in 1.0 M KOH, the OER and HER performance of the catalyst displays a relatively low overpotential, with only 220 and 78 mV, respectively. Furthermore, the catalytic activity remained unchanged for 24 h in 1.0 M KOH. This performance was superior to the majority of electrocatalysts that have been reported. This was achieved by utilizing the strong synergy that exists between MWCNTs and bimetallic (Ni-Cu) nano blocks present in the metal-organic framework. The enhanced electrocatalytic activity of the nanocomposite can be attributed to the synergistic impact caused by its various components.
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Affiliation(s)
- Pavithra Suresh
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
| | - Abirami Natarajan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
| | - Arulmozhi Rajaram
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
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7
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Zhang W, Zhao Y, Xu J, Jia B, Zhang W, Qin M. Guided Design of Efficient Oxygen Evolution Catalysts Using Patent Analysis. ACS OMEGA 2024; 9:18160-18168. [PMID: 38680379 PMCID: PMC11044224 DOI: 10.1021/acsomega.3c10195] [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: 12/20/2023] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 05/01/2024]
Abstract
The facile and rapid design of efficient oxygen evolution reaction (OER) catalysts holds paramount significance for energy conversion devices, such as water electrolyzers and fuel cells. Despite substantial progress in catalyst synthesis and performance exploration, the design and selection processes remain inefficient. In this context, we integrate patent analysis with catalyst design, leveraging the scholarly research functionalities within patent analyses to aid in the design and synthesis of a NiFeRu-carbon catalyst as a high-performance OER catalyst. The results demonstrate that the NiFeRu-Carbon catalyst with low Ru loading (0.3 wt %) exhibits an overpotential of only 219 mV at 10 mA cm-2 under alkaline conditions, and after continuous operation for 200 h, the overpotential only attenuates by 15 mV. The incorporation of high-valence Ru dopants elevated the intrinsic activity of individual catalytic sites within NiFe-layered double hydroxides (LDHs). During the catalytic process, the partial dissolution of Ru might lead to the generation of numerous oxygen vacancies within NiFe- LDH, thereby enhancing the catalyst's activity and stability.
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Affiliation(s)
- Weiwei Zhang
- School
of Economics and Management, University
of Science and Technology Beijing, Beijing 100083, China
| | - Yongzhi Zhao
- Institute
for Advanced Materials and Technology, University
of Science and Technology Beijing, Beijing 100083, China
| | - Jiali Xu
- School
of Economics and Management, University
of Science and Technology Beijing, Beijing 100083, China
- Intellectual
Property Research Center, University of
Science and Technology Beijing, Beijing 100083, China
| | - Baorui Jia
- Institute
for Advanced Materials and Technology, University
of Science and Technology Beijing, Beijing 100083, China
| | - Wujun Zhang
- School
of Economics and Management, University
of Science and Technology Beijing, Beijing 100083, China
- Intellectual
Property Research Center, University of
Science and Technology Beijing, Beijing 100083, China
| | - Mingli Qin
- Institute
for Advanced Materials and Technology, University
of Science and Technology Beijing, Beijing 100083, China
- Beijing
Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Institute
of Materials Intelligent Technology, Liaoning
Academy of Materials, Shenyang 110004, China
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8
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Autade VB, Bhattacharjee K, Kate RS, Arbuj SS, Kalubarme RS, Apte SK, Kale BB, Arote SA. Solid state engineering of Bi 2S 3/rGO nanostrips: an excellent electrode material for energy storage applications. RSC Adv 2024; 14:12313-12322. [PMID: 38633501 PMCID: PMC11019906 DOI: 10.1039/d4ra01304b] [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: 02/20/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
The study presents a novel, one-pot, and scalable solid-state reaction scheme to prepare bismuth sulphide (Bi2S3)-reduced graphene oxide (rGO) nanocomposites using bismuth oxide (Bi2O3), thiourea (TU), and graphene oxide (GO) as starting materials for energy storage applications. The impact of GO loading concentration on the electrochemical performance of the nanocomposites was investigated. The reaction follows a diffusion substitution pathway, gradually transforming Bi2O3 powder into Bi2S3 nanostrips, concurrently converting GO into rGO. Enhanced specific capacitances were observed across all nanocomposite samples, with the Bi2S3@0.2rGO exhibiting the highest specific capacitance of 705 F g-1 at a current density of 1 A g-1 and maintaining a capacitance retention of 82% after 1000 cycles. The superior specific capacitance is attributed to the excellent homogeneity and synergistic relation between rGO and Bi2S3 nanostrips. This methodology holds promise for extending the synthesis of other chalcogenides-rGO nanocomposites.
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Affiliation(s)
- Vijay B Autade
- Department of Physics, S.N. Arts, D.J.M. Commerce and B.N.S. Science College (Autonomous) Sangamner Ahmednagar 422 605 M.S. India
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Govt. of India Panchawati, Off Pashan Road Pune 411007 India
| | - Kaustav Bhattacharjee
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Govt. of India Panchawati, Off Pashan Road Pune 411007 India
| | - Ranjit S Kate
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Govt. of India Panchawati, Off Pashan Road Pune 411007 India
| | - Sudhir S Arbuj
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Govt. of India Panchawati, Off Pashan Road Pune 411007 India
| | - Ramchandra S Kalubarme
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Govt. of India Panchawati, Off Pashan Road Pune 411007 India
| | - Sanjay K Apte
- Nanocrystalline Laboratory, Centre for Material for Electronic Technology (CMET), Govt. of India Panchawati, Off Pashan Road Pune 411007 India
| | - Bharat B Kale
- MIT World Peace University (MIT-WPU) Paud Rd, Kothrud Pune Maharashtra 411038 India
| | - Sandeep A Arote
- Department of Physics, S.N. Arts, D.J.M. Commerce and B.N.S. Science College (Autonomous) Sangamner Ahmednagar 422 605 M.S. India
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9
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Matussin SN, Khan F, Harunsani MH, Kim YM, Khan MM. Photocatalytic degradation of brilliant green and 4-nitrophenol using Ni-doped Gd(OH) 3 nanorods. Sci Rep 2024; 14:8269. [PMID: 38594323 PMCID: PMC11004179 DOI: 10.1038/s41598-024-58688-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 04/02/2024] [Indexed: 04/11/2024] Open
Abstract
Gadolinium hydroxide (Gd(OH)3) was synthesized via a microwave-assisted synthesis method. Nickel ion (Ni2+) was doped into Gd(OH)3, in which 4-12% Ni-Gd(OH)3 was synthesized, to study the effect of doping. The structural, optical, and morphological properties of the synthesized materials were analyzed. The crystallite sizes of the hexagonal structure of Gd(OH)3 and Ni-Gd(OH)3, which were 17-30 nm, were obtained from x-ray diffraction analysis. The vibrational modes of Gd(OH)3 and Ni-Gd(OH)3 were confirmed using Raman and Fourier-transform infrared spectroscopies. The band gap energy was greatly influenced by Ni-doping, in which a reduction of the band gap energy from 5.00 to 3.03 eV was observed. Transmission electron microscopy images showed nanorods of Gd(OH)3 and Ni-Gd(OH)3 and the particle size increased upon doping with Ni2+. Photocatalytic degradations of brilliant green (BG) and 4-nitrophenol (4-NP) under UV light irradiation were carried out. In both experiments, 12% Ni-Gd(OH)3 showed the highest photocatalytic response in degrading BG and 4-NP, which is about 92% and 69%, respectively. Therefore, this study shows that Ni-Gd(OH)3 has the potential to degrade organic pollutants.
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Affiliation(s)
- Shaidatul Najihah Matussin
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Fazlurrahman Khan
- Institute of Fisheries Science, Pukyong National University, Busan, 48513, Republic of Korea
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Mohammad Hilni Harunsani
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam
| | - Young-Mog Kim
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea
- Department of Food Science and Technology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam.
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10
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Mijowska E, Pietrusewicz K, Maślana K. Highly Porous Carbon Flakes Derived from Cellulose and Nickel Phosphide Heterostructure towards Efficient Electrocatalysis of Oxygen Evolution Reaction. Molecules 2024; 29:352. [PMID: 38257265 PMCID: PMC10819855 DOI: 10.3390/molecules29020352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
This study delves into the pressing challenges of climate change and the escalating carbon dioxide (CO2) emissions by exploring hydrogen technology as a sustainable alternative. In particular, there is focus on nickel phosphide-based electrocatalysts, known for their promising performance in hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs). Therefore, here we have designed a facile strategy to deliver highly porous carbon flakes derived from cellulose fibers via carbonization at 850 °C, yielding highly porous structures and outstanding specific surface area (SSAcel_carb_850_act = 3164 m2/g) after activation. As-fabricated carbon was utilized as a support for Ni12P5 with an optimized mass ratio. Electrochemical testing revealed that the composite of Ni12P5 and carbon flakes with a ratio of 100:1, respectively, exhibited the most favorable kinetics for the oxygen evolution reaction (OER). Importantly, the durability tests of this sample demonstrated the most stable behavior and lowest potential change under high current density among the studied samples, making it a promising candidate in practical applications. Moreover, the analysis of electrocatalysts after an OER does not show any changes, indicating that the sample does not undergo undesired intermediate reactions and that unwanted products are not released, explaining its stable behavior. This provides a straightforward approach for creating a cellulose-derived composite with enhanced electroactivity and durability.
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Affiliation(s)
- Ewa Mijowska
- Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Piastow Ave. 45, 70-311 Szczecin, Poland
- Center for Advanced Materials and Manufacturing Process Engineering (CAMMPE), West Pomeranian University of Technology, 70-310 Szczecin, Poland
| | - Karolina Pietrusewicz
- Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Piastow Ave. 45, 70-311 Szczecin, Poland
| | - Klaudia Maślana
- Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Piastow Ave. 45, 70-311 Szczecin, Poland
- Center for Advanced Materials and Manufacturing Process Engineering (CAMMPE), West Pomeranian University of Technology, 70-310 Szczecin, Poland
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11
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Satpute N, Ghosh MK, Kesharwani A, Ghorai TK. Biosynthesis of JC-La 2CoO 4 magnetic nanoparticles explored in catalytic and SMMs properties. Sci Rep 2023; 13:22122. [PMID: 38092788 PMCID: PMC10719267 DOI: 10.1038/s41598-023-47852-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/19/2023] [Indexed: 12/17/2023] Open
Abstract
We have reported the synthesis of JC-La2CoO4 magnetic nanoparticles from Jatropha Curcas L. leaf extract in aqueous medium and potential application study in catalytic & Single Molecule Magnets (SMMs). Several techniques were used to investigate the structural, morphological, and elemental composition, particle size, optical properties, catalytic and magnetic properties by XRD, FTIR, SEM, EDAX, XPS, UV-visible and squid magnetic measurement. It was found that the crystallite sizes and grain sizes of JC-La2CoO4 NPs were 11.3 ± 1 and 24.1 ± 1 nm respectively and surface morphology of the nanoparticles looks spherical shape with good surface area. The band gap of JC-La2CoO4 was found to be 4.95 eV indicates good semiconductor in nature. XPS studies shows that La and Co present in + 3 and + 2 oxidation state respectively and suggest the composition formula is La2CoO4 with satisfied all the valency of metal ions. The photocatalytic efficiency of La2CoO4 shows good result against methylene blue (MB) compared to other dyes like MO, NO, RhB in presence of sunlight with rate constant 56.73 × 10-3 min-1 and completely degraded within 115 mints. The importance of JC-La2CoO4 has magnetic properties with antiferromagnetic coupling and SMMs properties with nature.
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Affiliation(s)
- Nilesh Satpute
- Nanomaterials and Crystal Design Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India
| | - Mithun Kumar Ghosh
- Nanomaterials and Crystal Design Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India
- Department of Chemistry, Govt. College Hatta, Damoh, Madhya Pradesh, 470775, India
| | - Aparna Kesharwani
- Nanomaterials and Crystal Design Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India
| | - Tanmay Kumar Ghorai
- Nanomaterials and Crystal Design Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak, Madhya Pradesh, 484887, India.
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12
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Kumar G, Dey RS. Coordination Engineering of Dual Co, Ni Active Sites in N-Doped Carbon Fostering Reversible Oxygen Electrocatalysis. Inorg Chem 2023; 62:13519-13529. [PMID: 37562977 DOI: 10.1021/acs.inorgchem.3c01925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
The development of affordable and non-noble-metal-based reversible oxygen electrocatalysts is required for renewable energy conversion and storage systems like metal-air batteries (MABs). However, the nonbifunctionality of most of the catalysts impedes their use in rechargeable MAB applications. Moreover, the loss of active sites also affects the long-term performance of the electrocatalyst toward oxygen electrocatalysis. In this work, we report a simplistic yet controllable chemical approach for the synthesis of dual transitional metals such as cobalt, nickel, and nitrogen-doped carbon (CoNi-NC) as bifunctional electrode materials for rechargeable zinc-air batteries (ZABs). The spatially isolated Ni-N4 and Co-N4 active units were rendered for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), respectively. The individual efficacy of both reversible reactions enables an ΔE value of ∼0.72 V, which outperforms several bifunctional electrocatalysts reported in the literature. The half-wave potential (E1/2) and overpotential were achieved at 0.83 V and 330 mV (vs RHE) for ORR and OER, respectively. The peak power density of ZAB equipped with the CoNi-NC catalyst was calculated to be 194 mW cm-2. The present strategy for the synthesis of bifunctional electrocatalysts with dual active sites offers prospects for developing electrochemical energy storage and conversion systems.
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Affiliation(s)
- Greesh Kumar
- Institute of Nano Science and Technology (INST), Sector-81, Mohali 140306, Punjab, India
| | - Ramendra Sundar Dey
- Institute of Nano Science and Technology (INST), Sector-81, Mohali 140306, Punjab, India
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Synthesis of Hollow Leaf-Shaped Iron-Doped Nickel–Cobalt Layered Double Hydroxides Using Two-Dimensional (2D) Zeolitic Imidazolate Framework Catalyzing Oxygen Evolution Reaction. Catalysts 2023. [DOI: 10.3390/catal13020403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Layered double hydroxides (LDHs) have been reported as one of the most effective materials for oxygen evolution reaction (OER) catalysts, which are prone to hydrolysis and oxidation under OER conditions. Metal–organic frameworks (MOFs) are porous materials with high crystallinity and internal surface area. The design of LDHs based on MOFs has attracted increasing attention owing to their high surface area, exposed catalysis sites, and fast charge/mass transport kinetics. Herein, we report a novel approach to fabricate a leaf-shaped iron-doped nickel–cobalt LDH (L-Fe-NiCoLDH) derived from a two-dimensional (2D) zeolitic imidazolate framework with a leaf-like morphology (ZIFL). Iron doping played a significant role in enhancing the specific surface area, affecting the OER performance. L-Fe-NiCoLDH showed high OER performance with an overpotential of 243 mV at 10 mA cm−2 and high durability after 20 h. The design of LDHs based on the leaf morphology of MOFs offers tremendous potential for improving OER efficiency.
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14
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Mouhib Y, Belaiche M, Elansary M, Lemine MA, Salameh B, Alsmadi AKM. The first structural, morphological and magnetic property studies on spinel nickel cobaltite nanoparticles synthesized from non-standard reagents. NEW J CHEM 2023. [DOI: 10.1039/d3nj00527e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
In this paper, using a molten salt process, nickel cobaltite nanoparticles were successfully synthesized for the first time from non-standard reagents.
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Affiliation(s)
- Yassine Mouhib
- Nanoscience and Nanotechnology Unit E.N.S. Rabat, Energy Research Center, Mohammed V University, B.P. 5118, Takaddoum Rabat, Morocco
| | - Mohammed Belaiche
- Nanoscience and Nanotechnology Unit E.N.S. Rabat, Energy Research Center, Mohammed V University, B.P. 5118, Takaddoum Rabat, Morocco
| | - Moustapha Elansary
- Nanoscience and Nanotechnology Unit E.N.S. Rabat, Energy Research Center, Mohammed V University, B.P. 5118, Takaddoum Rabat, Morocco
| | - Mohamed Abdellah Lemine
- College of Sciences, Department of Physics, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Belal Salameh
- Department of Physics, Kuwait University, Safat 13060, Kuwait
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15
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Catalytic Non-thermal Plasma Reactor for Oxidative Degradation of Toluene Present in Low Concentration. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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16
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Gulbay SK, Kaymaz M, Gulbagca F, Sen F. Carbon supported Pd based catalysts for the hydrolytic dehydrogeneration of morpholine borane. CHEMOSPHERE 2022; 309:136674. [PMID: 36195122 DOI: 10.1016/j.chemosphere.2022.136674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/15/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Although the reducing property of morpholine borane is frequently used, there are few studies on its use as a chemical hydrogen storage material. This study presents the catalyst efficiency for hydrogen production in the dehydrogenation reaction of morpholine borane as efficient and cost-effective hydrogen storage material, which can be used as an alternative to depleting fossil fuels. It was studied with four different catalysts as activated Carbon-supported Pd, PdAg, PdNi, and PdCo. Bimetallic palladium based catalysts were used for the dehydrogenation of morpholine borane for the first time. Nanoparticles were synthesized using the chemical reduction method. The catalytic effects of different metal ratios of PdNi/C nanoparticles, which were concluded to have the best catalyst effect, were investigated and it was observed that the ratio of Pd50Ni50/C nanoparticles exhibited better catalytic behavior, and optimization studies were carried out with Pd50Ni50/C nanoparticles. Transmission Electron Microscopy, X-Ray Diffraction, and X-Ray Photoelectron Spectroscopy analyzes were performed for the characterization of nanoparticles. According to the characterization analyzes of Pd50Ni50/C nanoparticles, the mean particle size was determined as 2.0 ± 1.0 nm. Catalyst efficiency was determined by performing the substrate, catalyst, and temperature experiments separately in the dehydrogenation reaction of Morpholine Borane. These parameters are respectively; Ea and ΔH were calculated as 93.2 kJ/mol, and 90.6 kJ/mol. The reusability experiments were carried out in 4 cycles. In other words, with this study, it was concluded that the reusability of Pd50Ni50/C nanoparticles synthesized by the chemical method is high and their catalytic activity is excellent.
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Affiliation(s)
- Senem Karahan Gulbay
- Department of Chemistry, Faculty of Science, Dokuz Eylul University, 35390, Izmir, Türkiye.
| | - Mulkiye Kaymaz
- Department of Chemistry, The Graduate School of Natural and Applied Sciences, Dokuz Eylul University, 35390, Izmir, Türkiye
| | - Fulya Gulbagca
- Sen Research Group, Department of Biochemistry, Kutahya Dumlupinar University, 43000, Kutahya, Türkiye
| | - Fatih Sen
- Sen Research Group, Department of Biochemistry, Kutahya Dumlupinar University, 43000, Kutahya, Türkiye.
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17
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Novel Indium Vanadium Oxide Nanosheet-Supported Nickel Iron Oxide Nanoplate Heterostructure for Synergistically Enhanced Photocatalytic Degradation of Tetracycline. Catalysts 2022. [DOI: 10.3390/catal12111471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Semiconductor-based heterogeneous photocatalytic oxidation processes have received considerable attention for the remediation of toxic pollutants. Herein, InVO4/NiFe2O4 nanocomposites were synthesized using a facile hydrothermal technique. Furthermore, various characterization results revealed the successful loading of NiFe2O4 nanoplates over InVO4 nanosheets, thereby signifying the formation of a heterostructure. The performance of the synthesized photocatalyst was tested for tetracycline (TC) antibiotic removal. The optimized InVO4/NiFe2O4 nanocomposite exhibits maximum photodegradation of TC molecules (96.68%) in 96 min; this is approximately 6.47 and 4.93 times higher than that observed when using NiFe2O4 and InVO4, respectively. The strong interaction between the InVO4 nanosheets and NiFe2O4 nanoplates can improve the visible-light absorption and hinder the recombination of charge carriers, further enhancing the photocatalytic performance. Moreover, hydroxyl radicals play a crucial role in the photodegradation of TC antibiotics.
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18
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Bao E, Ren X, Wu R, Liu X, Chen H, Li Y, Xu C. Porous MgCo2O4 nanoflakes serve as electrode materials for hybrid supercapacitors with excellent performance. J Colloid Interface Sci 2022; 625:925-935. [DOI: 10.1016/j.jcis.2022.06.098] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/07/2022] [Accepted: 06/21/2022] [Indexed: 01/17/2023]
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19
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Kouthaman M, Kannan K, Subadevi R, Sivakumar M. Study on the effect of co-substitution of transition metals on O3-type Na-Mn-Ni-O cathode materials for promising sodium-ion batteries. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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20
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Naresh B, Kuchi C, Rajasekhar D, Reddy PS. Solvothermal synthesis of MnCo2O4 microspheres for high-performance electrochemical supercapacitors. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128443] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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21
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Facile Synthesis of NiCo2S4/rGO Composites in a Micro-Impinging Stream Reactor for Energy Storage. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12062882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Using a process-enhanced micro-impinging stream reactor (MISR) and a co-precipitation route, NiCo2S4 and NiCo2S4/rGO electrode materials were successfully prepared, respectively. Owing to its excellent micromixing performance, the MISR-prepared NiCo2S4/rGO composites had a smaller size and less agglomeration than the same composites prepared in a traditional stirred reactor (STR). The specific capacity of the MISR-prepared composites was as high as 198.0 mAh g−1 under the current density of 1 A g−1. The cycling stability of the composites also improved significantly after being modified with reduced graphene oxide (rGO), and they displayed a fine cycling stability, which maintained a retention rate of 83.6% after 1000 cycles of charging and discharging.
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22
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Sun J, Wang Y, Zhou J, Chen K, Tao K, Zhao W, Han L. Controllable Transformation of Metal-Organic Framework Nanosheets into Oxygen Vacancy Ni xCo 3-xO 4 Arrays for Ultrahigh-Capacitance Supercapacitors with Long Lifespan. Inorg Chem 2022; 61:4283-4291. [PMID: 35238556 DOI: 10.1021/acs.inorgchem.1c03088] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The amino-functionalized bimetal NH2-NiCo-MOF nanosheet array is first fabricated on Ni foam substrates and then controllably transformed into oxygen vacancy bimetal oxide arrays by simply thermal annealing in air. This NiCo-based oxide array (NixCo3-xO4/NF) achieves high capacitance (2484 F g-1 at 1 A g-1), excellent rate performance (91.4%), and long cycling life when assessed as promising electrode material for supercapacitors. Notably, the existing oxygen vacancy in NixCo3-xO4 promotes the electrochemical performance of NixCo3-xO4/NF due to the enhancement of electrical conductivity and capture capability for OH-. In addition, the assembled asymmetric supercapacitor (ASC) device exhibits an excellent energy density of 39.3 W h kg-1 at a power density of 800.2 W kg-1, which still remains 32.2 W h kg-1 even at a high power density of 7994.5 W kg-1. Furthermore, a light-emitting diode can be lightened for more than 6 min, demonstrating a great potential for practical application of ASC devices. This work knocks on the door of a feasible strategy for designing and synthesizing 2D metal oxide nanosheet arrays with excellent electrochemical properties.
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Affiliation(s)
- Jie Sun
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yingchao Wang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jiachao Zhou
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Kang Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Kai Tao
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Wenna Zhao
- School of Biological and Chemical Engineering, Ningbotech University, Ningbo, Zhejiang 315100, China
| | - Lei Han
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
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23
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Angineni R, Venkataswamy P, Ramaswamy K, Raj S, Veldurthi NK, Vithal M. Preparation, characterization and photocatalytic activity studies of transition metal ion doped K2Ta2O6. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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24
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Wang Z, Lu B, Zhang X, Lu S, Xu W. Preparation and application of a flower-rod-like Bi 2S 3/Co 3O 4/rGO/nickel foam supercapacitor electrode. NEW J CHEM 2022. [DOI: 10.1039/d1nj04723j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Herein, we have prepared a new nanocomposite Bi2S3/Co3O4/rGO/Ni foam substrate electrode through hydrothermal synthesis and an annealing process.
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Affiliation(s)
- Ziwen Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Baichuan Lu
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing 100029, China
| | - Xiaokun Zhang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shixiang Lu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wenguo Xu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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25
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Hudy C, Długosz O, Gryboś J, Zasada F, Krasowska A, Janas J, Sojka Z. Catalytic performance of mixed M xCo 3−xO 4 (M = Cr, Fe, Mn, Ni, Cu, Zn) spinels obtained by combustion synthesis for preferential carbon monoxide oxidation (CO-PROX): insights into the factors controlling catalyst selectivity and activity. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00388k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A series of mixed cobalt spinel catalysts (MxCo3−xO4 (M = Cr, Fe, Mn, Ni, Cu, Zn)) was synthesized and tested in the CO-PROX reaction and in sole CO oxidation and H2 oxidation as references.
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Affiliation(s)
- Camillo Hudy
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Olga Długosz
- Faculty of Engineering and Chemical Technology, Cracow University of Technology, 31-155 Krakow, Poland
| | - Joanna Gryboś
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Filip Zasada
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Aneta Krasowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Janusz Janas
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Zbigniew Sojka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
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26
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Price CAH, Pastor-Perez L, Reina TR, Liu J. Yolk-Shell structured NiCo@SiO2 nanoreactor for CO2 upgrading via reverse water-gas shift reaction. Catal Today 2022. [DOI: 10.1016/j.cattod.2020.09.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Floating Carbon-Doped TiO2 Photocatalyst with Metallic Underlayers Investigation for Polluted Water Treatment under Visible-Light Irradiation. Catalysts 2021. [DOI: 10.3390/catal11121454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
In the current study, we analysed the influence of metallic underlayers on carbon-doped TiO2 films for RhB decomposition and Salmonella typhimurium inactivation under visible-light irradiation. All the experiments were divided into two parts. First, layered M/C-doped-TiO2 film structures (M = Ni, Nb, Cu) were prepared by magnetron sputtering technique on borosilicate glass substrates in the two-step deposition process. The influence of metal underlayer on the formation of the carbon-doped TiO2 films was characterised by X-ray diffractometer, scanning electron microscope, and atomic force microscope. The comparison between the visible-light assisted photocatalytic activity of M/C-doped TiO2 structures was performed by the photocatalytic bleaching tests of Rhodamine B dye aqueous solution. The best photocatalytic performance was observed for Ni/C-doped-TiO2 film combination. During the second part of the study, the Ni/C-doped-TiO2 film combination was deposited on high-density polyethylene beads which were selected as a floating substrate. The morphology and surface chemical analyses of the floating photocatalyst were performed. The viability and membrane permeability of Salmonella typhimurium were tested in cycling experiments under UV-B and visible-light irradiation. Three consecutive photocatalytic treatments of fresh bacteria suspensions with the same set of floating photocatalyst showed promising results, as after the third 1 h-long treatment bacteria viability was still reduced by 90% and 50% for UV-B and visible-light irradiation, respectively. The membrane permeability and ethidium fluorescence results suggest that Ni underlayer might have direct and indirect effect on the bacteria inactivation process. Additionally, relatively low loss of the photocatalyst efficiency suggests that floating C-doped TiO2 photocatalyst with the Ni underlayer might be seen as the possible solution for the used photocatalyst recovery issue.
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28
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Żółtowska S, Bielan Z, Zembrzuska J, Siwińska-Ciesielczyk K, Piasecki A, Zielińska-Jurek A, Jesionowski T. Modification of structured bio‑carbon derived from spongin-based scaffolds with nickel compounds to produce a functional catalyst for reduction and oxidation reactions: Potential for use in environmental protection. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 794:148692. [PMID: 34225146 DOI: 10.1016/j.scitotenv.2021.148692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/27/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Three different 3D fibrous-like NiO/Ni(OH)2/Ni‑carbonized spongin-based materials were prepared via a simple sorption-reduction method. Depending on the support used, the catalysts were composed of carbon, nickel oxide, nickel hydroxide and zero-valent nickel, with the surface content of the nickel-containing phase in the range 15.2-26.0 wt%. Catalytic studies showed promising activity in the oxidation of phenolic compounds in water and in the reduction of 4-nitrophenol. The oxidation efficiency depends on the substrate used and ranges from 80% for phenol at pH 2 to 99% for 4-chlorophenoxyacetic acid (4-CPA) and methylchlorophenoxypropionic acid (MCPP). In the reduction reaction, all catalysts exhibited superior activity, with rate constants in the range 0.648-1.022 min-1. The work also includes a detailed investigation of reusability and kinetic studies.
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Affiliation(s)
- Sonia Żółtowska
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland
| | - Zuzanna Bielan
- Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, Narutowicza 11/12, PL-80233 Gdansk, Poland
| | - Joanna Zembrzuska
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemistry and Electrochemistry, Berdychowo 4, PL-60965 Poznan, Poland
| | - Katarzyna Siwińska-Ciesielczyk
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland
| | - Adam Piasecki
- Poznan University of Technology, Faculty of Mechanical Engineering and Management, Institute of Materials Science and Engineering, Jana Pawla II 24, PL-60965 Poznan, Poland
| | - Anna Zielińska-Jurek
- Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, Narutowicza 11/12, PL-80233 Gdansk, Poland
| | - Teofil Jesionowski
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland.
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29
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Goudarzi M, Alshamsi HA, Amiri M, Salavati-Niasari M. ZnCo2O4/ZnO nanocomposite: Facile one-step green solid-state thermal decomposition synthesis using Dactylopius Coccus as capping agent, characterization and its 4T1 cells cytotoxicity investigation and anticancer activity. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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30
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Viswanathan C, Ponpandian N. NiCo 2O 4 nanoparticles inlaid on sulphur and nitrogen doped and co-doped rGO sheets as efficient electrocatalysts for the oxygen evolution and methanol oxidation reactions. NANOSCALE ADVANCES 2021; 3:3216-3231. [PMID: 36133652 PMCID: PMC9417605 DOI: 10.1039/d1na00135c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/26/2021] [Accepted: 03/28/2021] [Indexed: 05/06/2023]
Abstract
The present work depicts the fabrication of NiCo2O4 decorated on rGO, and doped and co-doped rGO and its electrocatalytic activity towards the oxygen evolution reaction and methanol oxidation reaction. The NiCo2O4 catalyst with S-doped rGO outperformed the other catalysts, indicating that the sulphur atoms attached on rGO possess low oxophilicity and optimum free energy. This results in facile adsorption of the intermediate products formed during the OER and a rapid release of O2 molecules. The same catalyst requires an overpotential of 1.51 V vs. RHE to attain the benchmark current density value of 10 mA cm-2 and shows a Tafel slope of 57 mV dec-1. It also reveals outstanding stability during its operation for 10 h with a minimum loss in potential. On the other hand, NiCo2O4/S,N-rGO reveals superior activity with high efficiency and stability in catalyzing methanol oxidation. The catalyst delivered a low onset potential of 0.12 V vs. Hg/HgO and high current density of 203.4 mA cm-2 after addition of 0.5 M methanol, revealing the outstanding performance of the electrocatalyst.
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Affiliation(s)
- C Viswanathan
- Department of Nanoscience and Technology, Bharathiar University Coimbatore-641046 India +91-422-2422-387 +91-422-2428-421
| | - N Ponpandian
- Department of Nanoscience and Technology, Bharathiar University Coimbatore-641046 India +91-422-2422-387 +91-422-2428-421
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31
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Mali D, Patil R, Patil A, Fulari V. Facile synthesis of NiO nanoflakes via hydrothermal route: Effect of urea concentration. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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32
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Ghosh K, Srivastava SK. Superior supercapacitor performance of Bi 2S 3 nanorod/reduced graphene oxide composites. Dalton Trans 2020; 49:16993-17004. [PMID: 33191423 DOI: 10.1039/d0dt03594g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work is focused on the synthesis of bismuth sulfide (Bi2S3) nanorod/reduced graphene oxide (RGO) composites via a one-step hydrothermal method using GO and bismuth nitrate in 5 : 1, 3 : 1 and 2 : 1 weight ratios and their characterization. The morphological studies revealed the formation of homogeneously dispersed Bi2S3 nanorods on RGO sheets along with occasional wrapping in the Bi2S3 nanorod/RGO (3 : 1) composite. XRD, FTIR, Raman and XPS studies suggested the incorporation of Bi2S3 in RGO sheets. The galvanostatic charge-discharge measurements showed that the Bi2S3 nanorod/RGO (3 : 1) composite exhibited the highest specific capacitance (1932 F g-1) at 1 A g-1 in the presence of 2 M aqueous KOH in a three-electrode cell. This is ascribed to the enhanced contact area between metal sulfide nanoparticles and RGO, increased conductivity and synergistic effect of Bi2S3 and RGO. The optimized Bi2S3 nanorod/RGO (3 : 1) composite also maintained an excellent cycling stability with ∼100% capacitance retention after 700 cycles. It is noted that the supercapacitor performance of the Bi2S3 nanorod/RGO (3 : 1) composite was better than group V and VI metal chalcogenides and their nanocomposites reported in several previous studies.
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Affiliation(s)
- Kalyan Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur-721302, India.
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Manchala S, Gandamalla A, Vempuluru NR, Muthukonda Venkatakrishnan S, Shanker V. High potential and robust ternary LaFeO 3/CdS/carbon quantum dots nanocomposite for photocatalytic H 2 evolution under sunlight illumination. J Colloid Interface Sci 2020; 583:255-266. [PMID: 33002697 DOI: 10.1016/j.jcis.2020.08.125] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 08/15/2020] [Accepted: 08/31/2020] [Indexed: 11/26/2022]
Abstract
Exploitation of the novel, robust, and advanced photocatalytic systems with high efficiency is the present demand for clean, green, and sustainable energy production. Carbon quantum dots (CQDs) have attracted tremendous interest in efficient H2 evolution from photocatalysis due to its remarkable visible-light harvesting and electron transport properties. Here, for the first time, a smart ternary nanocomposite comprises encapsulated CQDs with LaFeO3 spherical nanoparticles and CdS nanorods is synthesized by a simple hydrothermal procedure for the efficient photocatalytic H2 evolution under sunlight illumination. PXRD, FT-IR, FE-SEM, TEM, and XPS studies are performed to ensure the successful fabrication of ternary LaFeO3/CdS/CQD nanocomposite. The efficient H2 evolution rate (HER) of 25,302 μmol h-1 gcat-1 is achieved for LaFeO3/CdS/CQD nanocomposite, which is 602.4, 2.6, 29.8, 2.0 and 1.1 times higher than that of pristine LaFeO3, pristine CdS, and composites such as LaFeO3/CdS, LaFeO3/CQD, and CdS/CQD. Photocurrent and lifetime PL studies reveal, encapsulation of CQDs with the LaFeO3/CdS heterojunction can facilitate easy and efficient separation of photo-generated excitons. Altogether the fabrication of CQDs provides an ideal avenue for the development of high potential advanced photocatalytic systems for sustainable H2 production with remarkable efficiencies.
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Affiliation(s)
- Saikumar Manchala
- Department of Chemistry, National Institute of Technology, Warangal 506004, Telangana, India; Centre for Advanced Materials, National Institute of Technology, Warangal 506004, Telangana, India; Department of Chemistry, Indian Insititute of Technology, Hauz Khas, New Delhi 110016, India
| | - Ambedkar Gandamalla
- Department of Chemistry, National Institute of Technology, Warangal 506004, Telangana, India; Centre for Advanced Materials, National Institute of Technology, Warangal 506004, Telangana, India
| | - Navakoteswara Rao Vempuluru
- Nano Catalysis and Solar Fuels Research Laboratory, Department of Materials Science and Nanotechnology, Yogi Vemana University, Vemanapuram, Kadapa 516005, Andhra Pradesh, India
| | - Shankar Muthukonda Venkatakrishnan
- Nano Catalysis and Solar Fuels Research Laboratory, Department of Materials Science and Nanotechnology, Yogi Vemana University, Vemanapuram, Kadapa 516005, Andhra Pradesh, India
| | - Vishnu Shanker
- Department of Chemistry, National Institute of Technology, Warangal 506004, Telangana, India; Centre for Advanced Materials, National Institute of Technology, Warangal 506004, Telangana, India.
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Ray A, Korkut D, Saruhan B. Efficient Flexible All-Solid Supercapacitors with Direct Sputter-Grown Needle-Like Mn/MnO x@Graphite-Foil Electrodes and PPC-Embedded Ionic Electrolytes. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1768. [PMID: 32906762 PMCID: PMC7557606 DOI: 10.3390/nano10091768] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/31/2020] [Accepted: 09/04/2020] [Indexed: 12/20/2022]
Abstract
Recent critical issues regarding next-generation energy storage systems concern the cost-effective production of lightweight, safe and flexible supercapacitors yielding high performances, such as high energy and power densities as well as a long cycle life. Thus, current research efforts are concentrated on the development of high-performance advance electrode materials with high capacitance and excellent stability and solid electrolytes that confer flexibility and safety features. In this work, emphasis is placed on the binder-free, needle-like nanostructured Mn/MnOx layers grown onto graphite-foil deposited by reactive sputtering technique and to the polymer gel embedded ionic electrolytes, which are to be employed as new flexible pseudocapacitive supercapacitor components. Microstructural, morphological and compositional analysis of the layers has been investigated by X-ray diffractometer (XRD), Field Emission Scanning Electron Microscope (FE-SEM) and X-ray photoelectron spectroscopy (XPS). A flexible lightweight symmetric pouch-cell solid-state supercapacitor device is fabricated by sandwiching a PPC-embedded ionic liquid ethyl-methylimidazolium bis (trifluoromethylsulfonyl) imide (EMIM)(TFSI) polymer gel electrolyte (PGE) between two Mn/MnOx@Graphite-foil electrodes and tested to exhibit promising supercapacitive behaviour with a wide stable electrochemical potential window (up to 2.2 V) and long-cycle stability. This pouch-cell supercapacitor device offers a maximum areal capacitance of 11.71 mF/cm2@ 0.03 mA/cm2 with maximum areal energy density (Ea) of 7.87 mWh/cm2 and areal power density (Pa) of 1099.64 mW/cm2, as well as low resistance, flexibility and good cycling stability. This supercapacitor device is also environmentally safe and could be operated under a relatively wide potential window without significant degradation of capacitance performance compared to other reported values. Overall, these rationally designed flexible symmetric all-solid-state supercapacitors signify a new promising and emerging candidate for component integrated storage of renewable energy harvested current.
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Affiliation(s)
- Apurba Ray
- Department of High-Temperature and Functional Coatings, Institute of Materials Research, German Aerospace Center (DLR), 51147 Cologne, Germany; (A.R.); (D.K.)
| | - Delale Korkut
- Department of High-Temperature and Functional Coatings, Institute of Materials Research, German Aerospace Center (DLR), 51147 Cologne, Germany; (A.R.); (D.K.)
- Department of Chemistry, RWTH Aachen University, 52062 Aachen, Germany
| | - Bilge Saruhan
- Department of High-Temperature and Functional Coatings, Institute of Materials Research, German Aerospace Center (DLR), 51147 Cologne, Germany; (A.R.); (D.K.)
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35
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Reddy CV, Koutavarapu R, Reddy KR, Shetti NP, Aminabhavi TM, Shim J. Z-scheme binary 1D ZnWO 4 nanorods decorated 2D NiFe 2O 4 nanoplates as photocatalysts for high efficiency photocatalytic degradation of toxic organic pollutants from wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 268:110677. [PMID: 32383655 DOI: 10.1016/j.jenvman.2020.110677] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/23/2020] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
In this study, dimensionally coupled Z-scheme binary nanocomposites from two-dimensional (2D) NiFe2O4 nanoplates and one-dimensional (1D) ZnWO4 nanorods are prepared for efficient degradation of an antibiotic tetracycline (TC) and organic dye rhodamine B (RhB) under solar illumination. NiFe2O4/ZnWO4 nanocomposites were synthesized by a simple and ecological in-situ hydrothermal method without the use of surfactants. Structural and morphological studies revealed the formation of heterostructure and 1D ZnWO4 nanorods were uniformly distributed over the surface of NiFe2O4 nanoplates. Light-harvesting capability was improved and optimized by loading with different amounts of ZnWO4. Photoluminescence analysis demonstrated inhibited nature of the recombination of photo-excited charge carriers in the nanocomposites. Photocatalytic experiments revealed that the nanocomposite exhibited improved Z-scheme electron-transfer for the degradation of TC under solar illumination. In particular, NFZW-20 nanocomposite demonstrated superior photocatalytic degradation of TC of approximately 98% within 105 min. Furthermore, their photocatalytic performance was investigated by RhB dye under the solar irradiation to achieve 98% of degradation of RhB in 70 min. Improved photocatalytic activities are attributed to the Z-scheme electron-transfer mechanism, which could enhance the superior ability of light absorption and reduced recombination rate of the photogenerated charge carriers.
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Affiliation(s)
- Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
| | | | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Nagaraj P Shetti
- Department of Chemistry, K.L.E. Institute of Technology, Gokul, Hubballi, 580030, affiliated to Visvesvaraya Technological University, Karnataka, India.
| | - Tejraj M Aminabhavi
- Department of Pharmaceutics, SETs' College of Pharmacy, Dharwad, 580 007, Karnataka, India.
| | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
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Chen H, Du X, Wu R, Wang Y, Sun J, Zhang Y, Xu C. Facile hydrothermal synthesis of porous MgCo 2O 4 nanoflakes as an electrode material for high-performance asymmetric supercapacitors. NANOSCALE ADVANCES 2020; 2:3263-3275. [PMID: 36134277 PMCID: PMC9418576 DOI: 10.1039/d0na00353k] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 06/18/2020] [Indexed: 06/16/2023]
Abstract
In this work, porous MgCo2O4 nanoflakes (MgCo2O4 NFs) and MgCo2O4 nanocubes (MgCo2O4 NCs) have been successfully synthesized through a simple hydrothermal method combined with a post calcination process of the precursor in air. The morphology of the MgCo2O4 samples can be easily tuned by changing the hydrothermal temperature and reaction time, respectively. The porous MgCo2O4 NFs with an average pore size of 12.5 nm had a BET specific surface area up to 64.9 m2 g-1, which was larger than that of MgCo2O4 NCs (19.8 m2 g-1). The MgCo2O4 NFs delivered a specific capacitance of 734.1 F g-1 at 1 A g-1 and exhibited a considerable rate performance with 74.0% capacitance retention at 12 A g-1. About 94.2% of its original capacitance could be retained after 5000 charge-discharge cycles at a constant current density of 5 A g-1. An asymmetric supercapacitor (ASC) was assembled by using MgCo2O4 NFs as the positive electrode and AC as the negative electrode, and the ASC had a wide operation voltage of 1.7 V and a high energy density of 33.0 W h kg-1 at a power density of 859.6 W kg-1. Such outstanding electrochemical performances make the MgCo2O4 NFs a promising candidate for supercapacitor applications. In addition, the simple and scalable synthesis method can be extended to the preparation of other metal oxide-based electrode materials.
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Affiliation(s)
- Huiyu Chen
- School of Materials Science and Engineering, North University of China Taiyuan 030051 China
| | - Xuming Du
- School of Materials Science and Engineering, North University of China Taiyuan 030051 China
| | - Runze Wu
- School of Materials Science and Engineering, North University of China Taiyuan 030051 China
| | - Ya Wang
- School of Materials Science and Engineering, North University of China Taiyuan 030051 China
| | - Jiale Sun
- School of Materials Science and Engineering, North University of China Taiyuan 030051 China
| | - Yanfei Zhang
- School of Materials Science and Engineering, North University of China Taiyuan 030051 China
| | - Chunju Xu
- School of Materials Science and Engineering, North University of China Taiyuan 030051 China
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37
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Electrochemical Performance of 2D-Hierarchical Sheet-Like ZnCo2O4 Microstructures for Supercapacitor Applications. CRYSTALS 2020. [DOI: 10.3390/cryst10070566] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
With the rapid improvement of the global economy, the role of energy has become even more vital in the 21st century. In this regard, energy storage/conversion devices have become a major, worldwide research focus. In response to this, we have prepared two-dimensional (2D)-hierarchical sheet-like ZnCo2O4 microstructures for supercapacitor applications using a simple hydrothermal method. The 2D-hierarchical sheet-like morphologies with large surface area and smaller thickness enhanced the contact area of active material with the electrolyte, which increased the utilization rate. We investigated the electrochemical performance of sheet-like ZnCo2O4 microstructures while using Cyclic voltammetry (CV), Galvanostatic charge-discharge (GCD), and Electrochemical impedance spectroscopy (EIS) analysis. The electrochemical results demonstrated that the ZnCo2O4 electrode possesses 16.13 mF cm−2 of areal capacitance at 10 µA cm−2 of current density and outstanding cycling performance (170% of capacitance is retained after 1000 cycles at 500 µA cm−2). The high areal capacitance and outstanding cycling performance due to the unique sheet-like morphology of the ZnCo2O4 electrode makes it an excellent candidate for supercapacitor applications.
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38
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Catalytic Upgrading of a Biogas Model Mixture via Low Temperature DRM Using Multicomponent Catalysts. Top Catal 2019. [DOI: 10.1007/s11244-019-01216-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Huang Y, Ge S, Chen X, Xiang Z, Zhang X, Zhang R, Cui Y. Hierarchical FeCo
2
S
4
@FeNi
2
S
4
Core/Shell Nanostructures on Ni Foam for High‐Performance Supercapacitors. Chemistry 2019; 25:14117-14122. [DOI: 10.1002/chem.201902868] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Yunxia Huang
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of EducationDepartment of PhysicsBeihang University Beijing 100191 P. R. China
| | - Shuaipeng Ge
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of EducationDepartment of PhysicsBeihang University Beijing 100191 P. R. China
| | - Xiaojuan Chen
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of EducationDepartment of PhysicsBeihang University Beijing 100191 P. R. China
| | - Zhongcheng Xiang
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of EducationDepartment of PhysicsBeihang University Beijing 100191 P. R. China
| | - Xinran Zhang
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of EducationDepartment of PhysicsBeihang University Beijing 100191 P. R. China
| | - Ruoxuan Zhang
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of EducationDepartment of PhysicsBeihang University Beijing 100191 P. R. China
| | - Yimin Cui
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of EducationDepartment of PhysicsBeihang University Beijing 100191 P. R. China
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40
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Yang H, Zhu X, Zhu E, Lou G, Wu Y, Lu Y, Wang H, Song J, Tao Y, Pei G, Chu Q, Chen H, Ma Z, Song P, Shen Z. Electrochemically Stable Cobalt⁻Zinc Mixed Oxide/Hydroxide Hierarchical Porous Film Electrode for High-Performance Asymmetric Supercapacitor. NANOMATERIALS 2019; 9:nano9030345. [PMID: 30832420 PMCID: PMC6474017 DOI: 10.3390/nano9030345] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 02/17/2019] [Accepted: 02/22/2019] [Indexed: 11/30/2022]
Abstract
Construction of electrochemically stable positive materials is still a key challenge to accomplish high rate performance and long cycling life of asymmetric supercapacitors (ASCs). Herein, a novel cobalt–zinc mixed oxide/hydroxide (CoZn-MOH) hierarchical porous film electrode was facilely fabricated based on a cobalt–zinc-based metal–organic framework for excellent utilization in ASC. The as-constructed hierarchical porous film supported on conductive Ni foam possesses a rough surface and abundant macropores and mesopores, which allow fast electron transport, better exposure of electrochemically active sites, and facile electrolyte access and ion diffusion. Owing to these structural merits in collaboration, the CoZn-MOH electrode prepared with a zinc feeding ratio up to 45% at 110 min of heating time (CoZn-MOH-45-110) exhibited a high specific capacitance of 380.4 F·g−1, remarkable rate capability (83.6% retention after 20-fold current increase), and outstanding cycling performances (96.5% retention after 10,000 cycles), which exceed the performances of similar active electrodes. Moreover, an ASC based on this CoZn-MOH-45-110 electrode exhibited a high specific capacitance of 158.8 F·g−1, an impressive energy density of 45.8 Wh·kg−1, superior rate capability (83.1% retention after 50-fold current increase), and satisfactory cycling stability (87.9% capacitance retention after 12,000 cycles).
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Affiliation(s)
- Hanbin Yang
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Xinqiang Zhu
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Enhui Zhu
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Gaobo Lou
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Yatao Wu
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Yingzhuo Lu
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Hanyu Wang
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Jintao Song
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Yingjie Tao
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Gu Pei
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Qindan Chu
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Hao Chen
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Zhongqing Ma
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Pingan Song
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
| | - Zhehong Shen
- School of Engineering, Zhejiang Provincial Collaborative Innovation Center for Bamboo Resources and High-Efficiency Utilization, National Engineering and Technology Research Center of Wood-based Resources Comprehensive Utilization, and Key Laboratory of Wood Science and Technology of Zhejiang Province, Zhejiang A&F University, Hangzhou 311300, China.
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41
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Hemispherical flower-like N-doped porous carbon/NiCo2O4 hybrid electrode for supercapacitors. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.09.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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42
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Zhang L, Hui KN, Hui KS, Or SW. 3D heterostructured cobalt oxide@layered double hydroxide core–shell networks on nickel foam for high-performance hybrid supercapacitor. Dalton Trans 2019; 48:150-157. [DOI: 10.1039/c8dt03350a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
3D heterostructured Co3O4@LDH networks were grown directly on nickel foam for the positive electrode of a high-performance hybrid supercapacitor.
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Affiliation(s)
- Luojiang Zhang
- Department of Electrical Engineering
- The Hong Kong Polytechnic University
- Kowloon
- Hong Kong
- Hong Kong Branch of National Rail Transit Electrification and Automation Engineering Technology Research Center
| | - K. N. Hui
- Institute of Applied Physics and Materials Engineering
- University of Macau
- Avenida da Universidade
- Taipa
- Macau
| | - K. S. Hui
- Faculty of Science
- University of East Anglia
- Norwich, NR4 7TJ
- United Kingdom
| | - Siu Wing Or
- Department of Electrical Engineering
- The Hong Kong Polytechnic University
- Kowloon
- Hong Kong
- Hong Kong Branch of National Rail Transit Electrification and Automation Engineering Technology Research Center
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43
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Mehrez JAA, Owusu KA, Chen Q, Li L, Hamwi K, Luo W, Mai L. Hierarchical MnCo2O4@NiMoO4 as free-standing core–shell nanowire arrays with synergistic effect for enhanced supercapacitor performance. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01420e] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A core–shell MnCo2O4@NiMoO4 nanowire array prepared using a facile hydrothermal method showed extraordinary rate capability as a cathode for supercapacitors.
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Affiliation(s)
- Jaafar Abdul-Aziz Mehrez
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- International School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Kwadwo Asare Owusu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- International School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Qiang Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- International School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Lun Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- International School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Khawla Hamwi
- Department of Electronics Engineering
- Tishreen University
- Lattakia
- Syria
| | - Wen Luo
- Department of Physics
- School of Science
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Liqiang Mai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- International School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan 430070
- China
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44
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Huang Y, Cheng M, Xiang Z, cui Y. Facile synthesis of NiCo 2S 4/CNTs nanocomposites for high-performance supercapacitors. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180953. [PMID: 30839698 PMCID: PMC6170541 DOI: 10.1098/rsos.180953] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 08/15/2018] [Indexed: 06/09/2023]
Abstract
Herein, porous NiCo2S4/CNTs nanocomposites were synthesized via a simple hydrothermal method followed by the sulphurization process using different sulfide sources. By comparing two different sulfur sources, the samples using thioacetamide as sulfide source delivered more remarkable electrochemical performance with a high specific capacitance of 1765 F g-1 at 1 A g-1 and an admirable cycling stability with capacitance retention of 71.7% at a high current density of 10 A g-1 after 5000 cycles in 2 M KOH aqueous electrolyte. Furthermore, an asymmetric supercapacitor (ASC) device was successfully fabricated with the NiCo2S4/CNTs electrode as the positive electrode and graphene as the negative electrode. The device provided a maximum energy density of 29.44 W h kg-1 at a power density of 812 W kg-1. Even at a high power density of 8006 W kg-1, the energy density still reaches 16.68 W h kg-1. Moreover, the ASC presents 89.8% specific capacitance retention after 5000 cycles at 5 A g-1. These results reveal its great potential for supercapacitors in electrochemical energy storage field.
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Affiliation(s)
| | | | | | - Yimin cui
- Department of Physics, Beihang University, Beijing 100191, People's Republic of China
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45
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Li B, Fan H, Cheng M, Song Y, Li F, Wang X, Wang R. Porous Pt–NiOx nanostructures with ultrasmall building blocks and enhanced electrocatalytic activity for the ethanol oxidation reaction. RSC Adv 2018; 8:698-705. [PMID: 35538972 PMCID: PMC9076817 DOI: 10.1039/c7ra11575j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 12/14/2017] [Indexed: 12/19/2022] Open
Abstract
A porous Pt–NiOx nanomaterial was constructed by a simple strategy to achieve excellent ethanol oxidation catalyst performance.
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Affiliation(s)
- Bangquan Li
- Department of Physics
- Beihang University
- Beijing 100191
- China
- Institute of Solid State Physics
| | - Hongsheng Fan
- Department of Physics
- Beihang University
- Beijing 100191
- China
| | - Ming Cheng
- Department of Physics
- Beihang University
- Beijing 100191
- China
| | - Yuanjun Song
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science
- School of Mathematics and Physics
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Fangtao Li
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science
- School of Mathematics and Physics
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Xiaodan Wang
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science
- School of Mathematics and Physics
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Rongming Wang
- Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science
- School of Mathematics and Physics
- University of Science and Technology Beijing
- Beijing 100083
- China
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Du G, Zeng Z, Xiao B, Wang D, Yuan Y, Zhu X, Zhu J. Nanocrystalline LaOx/NiO composite as high performance electrodes for supercapacitors. Dalton Trans 2017; 46:16532-16540. [DOI: 10.1039/c7dt03815a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanocrystalline LaOx/NiO composite electrodes were synthesized via two types of facile cathodic electrodeposition methods onto nickel foam followed by thermal annealing without any binders.
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Affiliation(s)
- Guo Du
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Zifan Zeng
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Bangqing Xiao
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Dengzhi Wang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Yuan Yuan
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Xiaohong Zhu
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610064
- China
| | - Jiliang Zhu
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610064
- China
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