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Jeon SS, Kang PW, Klingenhof M, Lee H, Dionigi F, Strasser P. Active Surface Area and Intrinsic Catalytic Oxygen Evolution Reactivity of NiFe LDH at Reactive Electrode Potentials Using Capacitances. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Sun Seo Jeon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon34141, South Korea
| | - Phil Woong Kang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon34141, South Korea
| | - Malte Klingenhof
- Department of Chemistry, Chemical Engineering Division, Technical University of Berlin, Berlin10623, Germany
| | - Hyunjoo Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon34141, South Korea
| | - Fabio Dionigi
- Department of Chemistry, Chemical Engineering Division, Technical University of Berlin, Berlin10623, Germany
| | - Peter Strasser
- Department of Chemistry, Chemical Engineering Division, Technical University of Berlin, Berlin10623, Germany
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2
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Morphology effects of in situ hydrothermally treated hierarchical TiO2 nanofilms on their photoelectrochemical cathodic protection performance against 304 stainless steel corrosion. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01751-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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3
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Liu W, Kamiko M, Yamada I, Yagi S. Electrochemical deposition of amorphous cobalt oxides for oxygen evolution catalysis. RSC Adv 2022; 12:8731-8736. [PMID: 35424826 PMCID: PMC8984954 DOI: 10.1039/d2ra00492e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/15/2022] [Indexed: 01/08/2023] Open
Abstract
The oxygen evolution reaction (OER) is crucial in water splitting for hydrogen production. However, its high over-potential and sluggish kinetics cause an additional energy loss and hinder its practical application. The cobalt spinel oxide Co3O4 exhibits a high catalytic activity for the OER in alkaline solutions. However, the activity requires further enhancement to meet the industrial demand for hydrogen production. This paper presents an electrochemical deposition method to obtain cobalt oxides with a controllable crystallinity on carbon paper (CP). Usually, cobalt oxides grown on CP have a Co3O4 spinel oxide structure. The self-supported Co3O4/CP exhibited a considerable catalytic activity for the OER. When a VS2 layer grown on the CP beforehand by a hydrothermal method was used as substrate, the deposited cobalt oxides were in an amorphous state, denoted as CoOx/VS2/CP, which exhibited a higher OER activity and better stability than those of Co3O4/CP. The enhancement in the catalytic activity was attributed to the mixture formation of different types of cobalt species, including Co3O4, CoO, Co(OH)2, and metallic Co, because of the reduction by VS2. We also clarify the significance of the crystallinity of cobalt oxides in the improvement in the OER activity. This process can also be applied to the direct formation of other types of self-supported oxide electrodes for OER catalysis. Amorphous cobalt oxides electrodeposited on VS2 grown on carbon paper show better catalytic activity for the oxygen evolution reaction than crystalline Co3O4 on carbon paper.![]()
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Affiliation(s)
- Wei Liu
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Masao Kamiko
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Ikuya Yamada
- Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku, Sakai Osaka 599-8531 Japan
| | - Shunsuke Yagi
- Institute of Industrial Science, The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
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4
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Oliveira FM, Paštika J, Mazánek V, Melle-Franco M, Sofer Z, Gusmão R. Cobalt Phosphorous Trisulfide as a High-Performance Electrocatalyst for the Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23638-23646. [PMID: 33983707 DOI: 10.1021/acsami.1c02361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two-dimensional (2D) layered materials are currently one of the most explored materials for developing efficient and stable electrocatalysts in energy conversion applications. Some of the 2D metal phosphorous trichalcogenides (M2P2X6 or MPX3 in its simplified form) have been reported to be useful catalysts for water splitting, although results have been less promising for the sluggish oxygen evolution reaction (OER) due to insufficient activity or compromised stability. Herein, we report the OER catalysis of a series of M2P2X6 (M2+ = Mn, Fe, Co, Zn, Cd; X = S, Se). From the series of MPX3, CoPS3 yields the best results with an overpotential within the range of values usually obtained for IrO2 or RuO2 catalysts. The liquid-phase exfoliation of CoPS3 even improves the OER activity due to abundant active edges of the downsized sheets, accompanied by the presence of surface oxides. The influence of the OER medium and underlying substrate electrode is studied, with the exfoliated CoPS3 reaching the lowest overpotential at 234 mV at a current density of 10 mA/cm2, also able to sustain high current densities, with an overpotential of 388 mV at a current density of 100 mA/cm2, and excellent stability after multiple cycles or long-term operation. Quantum chemical models reveal that these observations are likely tied to moieties on CoPS3 edges, which are responsible for low overpotentials through a two-site mechanism. The OER performance of exfoliated CoPS3 reported herein yields competitive values compared to those reported for other Co-based and MPX3 in the literature, thus holding substantial promise for use as an efficient material for the anodic water-splitting reaction.
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Affiliation(s)
- Filipa M Oliveira
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Jan Paštika
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Vlastimil Mazánek
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Manuel Melle-Franco
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Rui Gusmão
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
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5
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Enhancing the Effectiveness of Oxygen Evolution Reaction by Electrodeposition of Transition Metal Nanoparticles on Nickel Foam Material. Catalysts 2021. [DOI: 10.3390/catal11040468] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Electrochemical oxygen evolution reaction (OER) activity was studied on nickel foam-based electrodes. The OER was investigated in 0.1 M NaOH solution at room temperature on as-received and Co- or Mo-modified Ni foam anodes. Corresponding values of charge-transfer resistance, exchange current-density for the OER and other electrochemical parameters for the examined Ni foam composites were recorded. The electrodeposition of Co or Mo on Ni foam base-materials resulted in a significant enhancement of the OER electrocatalytic activity. The quality and extent of Co, and Mo electrodeposition on Ni foam were characterized by means of scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) analysis.
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6
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Chen C, Wang X, Xu R, Zhang Y, Feng S, Ju A, Jiang W. PbO 2 modified with TiO 2-NTs composite materials with enhanced OER electrocatalytic activity for Zn electrowinning. RSC Adv 2021; 11:6146-6158. [PMID: 35423157 PMCID: PMC8694802 DOI: 10.1039/d0ra08448d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 01/27/2021] [Indexed: 11/21/2022] Open
Abstract
The high oxygen evolution overpotential of the Pb-Ag anode is one of the main reasons for the high energy consumption in Zn electrowinning. PbO2, owing to its high conductivity, good corrosion resistance and low cost, is widely used as an excellent coating material. In present research, a novel composite Ti/TiO2-NTs/PbO2 material was synthesized through a facile anodization, annealing, electrochemical reduction and galvanostatic deposition. The surface morphology, internal structure and the mechanisms of TiO2-NTs enhancing electrochemical performance were discussed. The results show that the self-organized high aspect ratio TiO2-NTs with diameter of ∼120 nm and length of ∼8 μm were obtained on Ti substrate. The Ti/TiO2-NTs/PbO2 composite material exhibits excellent oxygen evolution performance and good stability in Zn electrowinning simulation solution (50 g L-1 Zn2+, 150 g L-1 H2SO4) at 35 °C. Its oxygen evolution overpotential is only 630 mV under current density 50 mA cm-2, which is 332 m lower than that of Pb-0.76 wt% Ag (η = 962 mV) and only increases 22 mV after 5000 cycles of CV scanning. Its outstanding electrochemical performance is mainly ascribed to the introduction of TiO2-NTs in Pb(CH3COO)2 media since it refines the crystal grains, increases the electrochemical surface area, greatly reduces the charge transfer resistance (25.4 Ω cm2 to 2.337 Ω cm2) and enhances corrosion resistance. Therefore, the Ti/TiO2-NTs/PbO2 material prepared in Pb(CH3COO)2 medium may be an ideal anode for Zn electrowinning.
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Affiliation(s)
- Chen Chen
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China +86 871 65161278 +86 871 65160072
| | - Xuanbing Wang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China +86 871 65161278 +86 871 65160072
| | - Ruidong Xu
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China +86 871 65161278 +86 871 65160072
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology Kunming 650093 China
| | - Ying Zhang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China +86 871 65161278 +86 871 65160072
| | - Suyang Feng
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology Kunming 650093 China
| | - Ao Ju
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China +86 871 65161278 +86 871 65160072
| | - Wenhao Jiang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology Kunming 650093 China +86 871 65161278 +86 871 65160072
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Alaba PA, Lee CS, Abnisa F, Aroua MK, Cognet P, Pérès Y, Wan Daud WMA. Kinetic parameters for glycerol electrooxidation over nitrogen- and fluorine-doped composite carbon: Dynamic electrochemical impedance spectroscopy analysis based. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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8
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A rational experimental approach to identify correctly the working voltage window of aqueous-based supercapacitors. Sci Rep 2020; 10:19195. [PMID: 33154430 PMCID: PMC7644765 DOI: 10.1038/s41598-020-75851-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/28/2020] [Indexed: 11/18/2022] Open
Abstract
It is common to find in the literature different values for the working voltage window (WVW) range for aqueous-based supercapacitors. In many cases, even with the best intentions of the widening the operating voltage window, the measured current using the cyclic voltammetry (CV) technique includes a significant contribution from the irreversible Faradaic reactions involved in the water-splitting process, masked by fast scan rates. Sometimes even using low scan rates is hard to determine precisely the correct WVW of the aqueous-based electrochemical capacitor. In this sense, we discuss here the best practices to determine the WVW for capacitive current in an absence of water splitting using complementary techniques such as CV, chronoamperometry (CA), and the electrochemical impedance spectroscopy (EIS). To accomplish this end, we prepare and present a model system composed of multiwalled carbon nanotubes buckypaper electrodes housed in the symmetric coin cell and soaked with an aqueous-based electrolyte. The system electrochemical characteristics are carefully evaluated during the progressive enlargement of the cell voltage window. The presence of residual Faradaic current is verified in the transients from the CA study, as well as the impedance changes revealed by EIS as a function of the applied voltage, is discussed. We verify that an apparent voltage window of 2.0 V determined using the CV technique is drastically decreased to 1.2 V after a close inspection of the CA findings used to discriminate the presence of a parasitic Faradaic process. Some orientations are presented to instigate the establishment in the literature of some good scientific practices concerned with the reliable characterization of supercapacitors.
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9
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Lu Y, Wang W, Xie F. Investigation of oxygen evolution reaction kinetic process and kinetic parameters on iridium electrode by electrochemistry impedance spectroscopy analysis. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114281] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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10
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Rajendiran R, Muthuchamy N, Park KH, Li OL, Kim HJ, Prabakar K. Self-assembled 3D hierarchical MnCO3/NiFe layered double hydroxides as a superior electrocatalysts for the oxygen evolution reactions. J Colloid Interface Sci 2020; 566:224-233. [DOI: 10.1016/j.jcis.2020.01.086] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 12/23/2022]
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Li GF, Divinagracia M, Labata MF, Ocon JD, Abel Chuang PY. Electrolyte-Dependent Oxygen Evolution Reactions in Alkaline Media: Electrical Double Layer and Interfacial Interactions. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33748-33758. [PMID: 31436074 DOI: 10.1021/acsami.9b06889] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Traditional understanding of electrocatalytic reactions generally focuses on either covalent interactions between adsorbates and the reaction interface (i.e., electrical double layer, EDL) or electrostatic interactions between electrolyte ions. Here, our work provides valuable insights into interfacial structure and ionic interactions during alkaline oxygen evolution reaction (OER). The importance of inner-sphere OH- adsorption is demonstrated as the IrOx activity in 4.0 M KOH is 6.5 times higher than that in 0.1 M KOH. Adding NaNO3 as a supporting electrolyte, which is found to be inert for long-term stability, complicates the electrocatalytic reaction in a half cell. The nonspecially adsorbed Na+ in the outer compact interfacial layer is suggested to form a stronger noncovalent interaction with OH- through hydrogen bond than adsorbed K+, leading to the decrease of interfacial OH- mobility. This hypothesis highlights the importance of outer-sphere adsorption for the OER, which is generally recognized as a pure inner-sphere process. Meanwhile, based on our experimental observations, the pseudocapacitive behavior of solid-state redox might be more reliable in quantifying active sites for OER than that measured from the conventional EDL charging capacitive process. The interfacial oxygen transport is observed to improve with increasing electrolyte conductivity, ascribing to the increased accessible active sites. The durability results in a liquid alkaline electrolyzer which shows that adding NaNO3 into KOH solution leads to additional degradation of OER activity and long-term stability. These findings provide an improved understanding of the mechanistic details and structural motifs required for efficient and robust electrocatalysis.
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Affiliation(s)
- Guang-Fu Li
- Department of Mechanical Engineering , University of California Merced , California 95343 , United States
| | - Maricor Divinagracia
- Department of Mechanical Engineering , University of California Merced , California 95343 , United States
- Department of Chemical Engineering, College of Engineering , University of the Philippines Diliman , Quezon City 1101 , Philippines
| | - Marc Francis Labata
- Environmental Systems Graduate Program , University of California , Merced 94343 , California , United States
| | - Joey D Ocon
- Department of Chemical Engineering, College of Engineering , University of the Philippines Diliman , Quezon City 1101 , Philippines
| | - Po-Ya Abel Chuang
- Department of Mechanical Engineering , University of California Merced , California 95343 , United States
- Environmental Systems Graduate Program , University of California , Merced 94343 , California , United States
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12
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Pierozynski B, Mikolajczyk T, Luba M, Zolfaghari A. Kinetics of oxygen evolution reaction on nickel foam and platinum-modified nickel foam materials in alkaline solution. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113194] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Elaissaoui I, Akrout H, Grassini S, Fulginiti D, Bousselmi L. Effect of coating method on the structure and properties of a novel PbO 2 anode for electrochemical oxidation of Amaranth dye. CHEMOSPHERE 2019; 217:26-34. [PMID: 30396047 DOI: 10.1016/j.chemosphere.2018.10.161] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/21/2018] [Accepted: 10/22/2018] [Indexed: 06/08/2023]
Abstract
This study deals with the electrochemical degradation of Amaranth in aqueous solution by means of stainless steel (SS) electrodes coated with a SiOx interlayer deposited by Plasma Enhanced Chemical Vapour Deposition and a modified PbO2 top layer deposited by continuous galvanostatic electrodeposition. The morphological characterization of the PbO2 top-layer performed by Field Emission Scanning Electron Microscope put in evidence that the SiOx, interlayer allows obtaining a more integrated PbO2/SS electrode with a very homogeneous PbO2 film. The composition of the lead oxide layer was investigated by X-ray Diffractometry, showing that the β-PbO2/α-PbO2 ratio in the top layer deposited on the SiOx film was four times higher respect to the one deposited directly on the stainless steel surface. In addition, the electrochemical behaviour of SS/SiOx/PbO2 interfaces was studied by electrochemical impedance spectroscopy (EIS). The EIS results showed that the presence of SiOx favors electron transfer within the oxide layer which improves electro-oxidation capability. Moreover, bulk electrolysis showed that over 100% colour removal and 84% COD removal, using SS/SiOx/PbO2 at acidic pH were reached after 300 min. High Performance Liquid Chromatography analysis was used for the quantitative determinations of initial Amaranth dye molecule removal and to evaluate its specific degradation rate. In order to evaluate the phototoxicity of treated solution with different by-products, different tests of germination were performed and proved that the electrochemical treatment with modified PbO2 could be as an efficient technology for reducing hazardous wastewater toxicity and able to produce water available for reuse.
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Affiliation(s)
- Ines Elaissaoui
- Laboratory of Wastewaters and Environment, Center of Water Researches & Technology (CERTE), Borj Cédria PB 273, Soliman 8020, Tunisia
| | - Hanene Akrout
- Laboratory of Wastewaters and Environment, Center of Water Researches & Technology (CERTE), Borj Cédria PB 273, Soliman 8020, Tunisia.
| | - Sabrina Grassini
- Department of Applied Science and Technology, Polytechnic of Turin, Turin, Italy
| | - Daniele Fulginiti
- Department of Applied Science and Technology, Polytechnic of Turin, Turin, Italy
| | - Latifa Bousselmi
- Laboratory of Wastewaters and Environment, Center of Water Researches & Technology (CERTE), Borj Cédria PB 273, Soliman 8020, Tunisia
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14
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Xin W, Jiang WJ, Lian Y, Li H, Hong S, Xu S, Yan H, Hu JS. NiS2 nanodotted carnation-like CoS2 for enhanced electrocatalytic water splitting. Chem Commun (Camb) 2019; 55:3781-3784. [DOI: 10.1039/c9cc01235d] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An NiS2 nanodotted carnation-like CoS2 bifunctional electrocatalyst is demonstrated with enhanced electrochemical performances for the OER, the HER, and overall water splitting.
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Affiliation(s)
- Weili Xin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Wen-Jie Jiang
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS)
- Beijing 100190
- China
| | - Yajuan Lian
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Hui Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Song Hong
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Sailong Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Hong Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Jin-Song Hu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS)
- Beijing 100190
- China
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Zhang J, Li X, Liu Y, Zeng Z, Cheng X, Wang Y, Tu W, Pan M. Bi-metallic boride electrocatalysts with enhanced activity for the oxygen evolution reaction. NANOSCALE 2018; 10:11997-12002. [PMID: 29904771 DOI: 10.1039/c8nr02198h] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Rational design and understanding of the intrinsic mechanism are critical to develop highly active and durable electrocatalysts. In this study, a series of bi-metallic boride catalysts based on Ni and Co were prepared, and their activities were evaluated. The synthesised Co-10Ni-B catalyst exhibited excellent activity for water splitting in a 1 M KOH electrolyte. The overpotential was 330 mV at a current density of 10 mA cm-2, better than previously reported mono-metallic borides and even IrO2. The synergistic effect of Co and Ni was proved by X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy. The facile formation of critical intermediates CoOOH and NiOOH during the catalytic processes and a significant increase in surface area owing to the introduction of a second metal into mono-metallic boride were attributed to the superior catalytic performance of catalysts for the oxygen evolution reaction. A Co-10Ni-B-sp catalyst with a higher surface area than the Co-10Ni-B catalyst was also synthesised to evaluate the effect of a high surface area on the catalytic activity. A lower overpotential of 310 mV at a current density of 10 mA cm-2 was achieved.
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Affiliation(s)
- Jian Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China.
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Liu J, Xie Y, Nan Y, Gou G, Li X, Fang Y, Wang X, Tang Y, Yang H, Ma J. ZnCo2O4 nanoparticles derived from dual-metal-organic-frameworks embedded in Multiwalled Carbon Nanotubes: a favorable electrocatalyst for the water splitting. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.10.080] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Faria ER, Ribeiro FM, Franco DV, Da Silva LM. Fabrication and characterisation of a mixed oxide-covered mesh electrode composed of NiCo2O4 and its capability of generating hydroxyl radicals during the oxygen evolution reaction in electrolyte-free water. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3815-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Chen S, Jiang F, Xie X, Zhou Y, Hu X. Synthesis and application of lead dioxide nanowires for a PEM ozone generator. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.202] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Rosestolato D, Amadelli R, Velichenko AB. Electrode characteristics for ozone production: a case study using undoped and doped PbO2 on porous platinised titanium substrates. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2945-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Co3O4 Nanorods—Efficient Non-noble Metal Electrocatalyst for Oxygen Evolution at Neutral pH. Electrocatalysis (N Y) 2015. [DOI: 10.1007/s12678-015-0263-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Audichon T, Morisset S, Napporn TW, Kokoh KB, Comminges C, Morais C. Effect of Adding CeO2to RuO2-IrO2Mixed Nanocatalysts: Activity towards the Oxygen Evolution Reaction and Stability in Acidic Media. ChemElectroChem 2015. [DOI: 10.1002/celc.201500072] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Duan T, Chen Y, Wen Q, Duan Y. Different mechanisms and electrocatalytic activities of Ce ion or CeO2 modified Ti/Sb–SnO2 electrodes fabricated by one-step pulse electro-codeposition. RSC Adv 2015. [DOI: 10.1039/c5ra01876e] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nano-CeO2 doping mitigates the surface antimony enrichment and promotes the complete oxidation of antimony, while cerium ion doping aggravates these things.
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Affiliation(s)
- Tigang Duan
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Ye Chen
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Qing Wen
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Ying Duan
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
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Gonçalves IC, dos Santos WT, Franco DV, Da Silva LM. Fabrication and characterization of oxide fine-mesh electrodes composed of Sb-SnO2 and study of oxygen evolution from the electrolysis of electrolyte-free water in a solid polymer electrolyte filter-press cell: Possibilities for the combustion of organic pollutants. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.12.119] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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