1
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Zhang J, Shi L, Miao X, Zhou S, Yang L. Promotion of Acid-Water Oxidation by Lattice Distortion and Orbital Hybridization Induced by Ionic Dopant in Pyrochlore Y 2Ru 2O 7. ACS APPLIED MATERIALS & INTERFACES 2024; 16:21905-21914. [PMID: 38634487 DOI: 10.1021/acsami.4c01890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
For acid-water oxidation, pyrochloric ruthenates are thought to be extremely effective electrocatalysts. In this work, through partial B-site replacement with larger M2+ cations, the electronic states of Y2Ru2O7 with strong electron correlations are reasonably managed, by which the inherent performance is tremendously promoted. Based on this, the improved Y2Ru1.9Sr0.1O7 electrocatalyst exhibits an outstanding durability and presents a highly inherent mass activity of 1915.1 A gRu-1 (at 1.53 V vs RHE). The enhanced oxygen-evolving reaction (OER) activity by ionic dopant in YRO pyrochlore can be attributed to two aspects, i.e., the lattice distortion induced inhibition of the grain coarsening, which results in a large surface area for YRO-M and increases the OER active sites, and the weakening of electron correlation via broadening of the Ru 4d bandwidths due to the increase of the average radius of B-site ions, which gives rise to an enhancement of conductivity and a strengthened hybridization between Ru 4d and O 2p orbitals and improves the reaction kinetics. The synergistic effects of lattice distortion and orbital hybridization promote the enhanced OER activity. The results would provide fresh concepts for the design of improved electrocatalysts and underscore the significance of managing the intrinsic performance through the dual modification of microstructure morphology and electronic structure.
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Affiliation(s)
- Jinhui Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Lei Shi
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Xianbing Miao
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Shiming Zhou
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
| | - Liping Yang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, P. R. China
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2
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Zhou Q, Min M, Song M, Cui S, Ding N, Wang M, Lei S, Xiong C, Peng X. In Situ Construction of Zinc-Mediated Fe, N-Codoped Hollow Carbon Nanocages with Boosted Oxygen Reduction for Zn-Air Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307943. [PMID: 38037480 DOI: 10.1002/smll.202307943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/05/2023] [Indexed: 12/02/2023]
Abstract
The rational design of bifunctional oxygen electrocatalysts with unique morphology and luxuriant porous structure is significant but challenging for accelerating the reaction kinetics of rechargeable Zn-air batteries (ZABs). Herein, zinc-mediated Fe, N-codoped carbon nanocages (Zn-FeNCNs) are synthesized by pyrolyzing the polymerized iron-doped polydopamine on the surface of the ZIF-8 crystal polyhedron. The formation of the chelate between polydopamine and Fe serves as the covering layer to prevent the porous carbon nanocages from collapsing and boosts enough exposure and utilization of metal-based active species during carbonization. Furthermore, both the theoretical calculation and experimental results show that the strong interaction between polyhedron and polydopamine facilitates the evolution of high-activity zinc-modulated FeNx sites and electron transportation and then stimulates the excellent bifunctional catalytic activity for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). As expected, the Zn-air battery with Zn-FeNCNs as an air cathode displays a superior power density (256 mW cm-2) and a high specific capacity (813.3 mA h gZn-1), as well as long-term stability over 1000 h. Besides, when this catalyst is applied to the solid-state battery, the device exhibited outstanding mechanical stability and a high round-trip efficiency under different bending angles.
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Affiliation(s)
- Qiusheng Zhou
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Shaanxi, 710021, China
| | - Min Min
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Shaanxi, 710021, China
| | - Minmin Song
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Shaanxi, 710021, China
| | - Shiqiang Cui
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Shaanxi, 710021, China
| | - Nan Ding
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Shaanxi, 710021, China
| | - Mingyuan Wang
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, School of Electrical Science and Engineering, Southeast University, Nanjing, 210096, China
| | - Shuangying Lei
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, School of Electrical Science and Engineering, Southeast University, Nanjing, 210096, China
| | - Chuanyin Xiong
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Shaanxi, 710021, China
| | - Xinwen Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China
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Liu Y, Wang X, Yang M, Li Y, Xiao Y, Zhao J. Preparation of Ru-doped TiO 2 nanotube arrays through anodizing TiRu alloys for bifunctional HER/OER electrocatalysts. NANOSCALE 2023; 15:17936-17945. [PMID: 37904619 DOI: 10.1039/d3nr03831a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
In this research, Ru-doped TiO2 nanotube arrays (Ru-TNTA) were prepared by anodizing TiRu alloys, and the effects of annealing temperature, Ru content and test temperature on their performances for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) were investigated. The results show that the unannealed Ru-TNTA (a-Ru-TNTA) exhibits superior activity for the HER, and the Ru-TNTA annealed at 450 °C (c-Ru-TNTA) shows excellent activity for the OER. The Ru content of TiRu impacts the electrochemically active surface area (ECSA) and the charge transfer resistance (Rct) significantly. When the Ru content of Ru-TNTA is 6%, its performance is optimal. Moreover, the electrocatalytic activity of Ru-TNTA improves with increasing test temperature, and the overpotentials of a-Ru-TNTA and c-Ru-TNTA at 80 °C are 19 mV and 227 mV (10 mA cm-2), respectively. Ru-TNTA exhibits excellent electrocatalytic performance for water splitting and good stability, which provides a new idea for the preparation of advanced bifunctional electrocatalysts for water splitting.
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Affiliation(s)
- Yuejiao Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Xixin Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Mengyao Yang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Ying Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Yue Xiao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Jianling Zhao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
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4
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Browne MP, Domínguez C, Kaplan C, Lyons MEG, Fonda E, Colavita PE. Probing Changes in the Local Structure of Active Bimetallic Mn/Ru Oxides during Oxygen Evolution. ACS APPLIED ENERGY MATERIALS 2023; 6:8607-8615. [PMID: 37654435 PMCID: PMC10466265 DOI: 10.1021/acsaem.3c01585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/04/2023] [Indexed: 09/02/2023]
Abstract
Identifying the active site of catalysts for the oxygen evolution reaction (OER) is critical for the design of electrode materials that will outperform the current, expensive state-of-the-art catalyst, RuO2. Previous work shows that mixed Mn/Ru oxides show comparable performances in the OER, while reducing reliance on this expensive and scarce Pt-group metal. Herein, X-ray photoelectron spectroscopy and X-ray absorption spectroscopy (XAS) are performed on mixed Mn/Ru oxide materials for the OER to understand structural and chemical changes at both metal sites during oxygen evolution. The results show that the Mn-content affects both the oxidation state and local coordination environment of Ru sites. Operando XAS experiments suggest that the presence of MnOx might be essential to achieve high activity likely by facilitating changes in the O-coordination sphere of Ru centers.
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Affiliation(s)
- Michelle P. Browne
- School
of Chemistry, CRANN and AMBER Research Centres,
Trinity College Dublin, College Green, Dublin D02 PN40, Ireland
- Helmholtz
Young Investigator Group Electrocatalysis: Synthesis to Devices, Helmholtz-Zentrum
Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Carlota Domínguez
- School
of Chemistry, CRANN and AMBER Research Centres,
Trinity College Dublin, College Green, Dublin D02 PN40, Ireland
| | - Can Kaplan
- Helmholtz
Young Investigator Group Electrocatalysis: Synthesis to Devices, Helmholtz-Zentrum
Berlin für Materialien und Energie, 14109 Berlin, Germany
| | - Michael E. G. Lyons
- School
of Chemistry, CRANN and AMBER Research Centres,
Trinity College Dublin, College Green, Dublin D02 PN40, Ireland
| | - Emiliano Fonda
- SAMBA
Beamline, SOLEIL Synchrotron, L′Orme des Merisiers, Saint-Aubin, BP48, 91192 Gif-sur-Yvette, France
| | - Paula E. Colavita
- School
of Chemistry, CRANN and AMBER Research Centres,
Trinity College Dublin, College Green, Dublin D02 PN40, Ireland
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5
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Liu C, Jiang Y, Wang T, Li Q, Liu Y. Nano Si-Doped Ruthenium Oxide Particles from Caged Precursors for High-Performance Acidic Oxygen Evolution. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207429. [PMID: 36807708 PMCID: PMC10161032 DOI: 10.1002/advs.202207429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/26/2023] [Indexed: 05/06/2023]
Abstract
RuO2 is well known as the benchmark acidic oxygen evolution reaction (OER) catalyst, but its practical application has been impeded by its limited durability. Herein, it is presented that the stability of ruthenium oxide can be significantly improved by pretrapping RuCl3 precursors within a cage compound possessing 72 aromatic rings, which leads to well carbon-coated RuOx particles (Si-RuOx @C) after calcination. The catalyst survives in 0.5 M H2 SO4 for an unprecedented period of 100 hours at 10 mA cm-2 with minimal overpotential change during OER. In contrast, RuOx prepared from similar non-tied compounds doesn't exhibit such catalytic activity, highlighting the importance of the preorganization of Ru precursors within the cage prior to calcination. In addition, the overpotential at 10 mA cm-2 in acid solution is only 220 mV, much less than that of commercial RuO2 . X-ray absorption fine structure (FT-EXAFS) reveals the Si doping through unusual Ru-Si bond, and density functional theory (DFT) calculation reveals the importance of the Ru-Si bond in enhancing both the activity and stability of the catalyst.
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Affiliation(s)
- Chunxiang Liu
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yunbo Jiang
- State Key Laboratory for Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., 650221, Kunming, P. R. China
| | - Teng Wang
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Qiaosheng Li
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yuzhou Liu
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Research Department, Shenyunzhihe Company, Qidian Center, FL 10, Energy East Rd, #1, Changping District, Beijing, 102206, P. R. China
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6
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Song X, Chen X, Zhang S, Wu D. Ti/RuO 2-IrO 2 anodic electrochemical oxidation composting leachate biochemical effluent: Response surface optimization and failure mechanism. CHEMOSPHERE 2023; 331:138777. [PMID: 37121287 DOI: 10.1016/j.chemosphere.2023.138777] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/19/2023] [Accepted: 04/22/2023] [Indexed: 05/03/2023]
Abstract
In this work, the electrolytic process conditions for the electrochemical oxidation (EO) of composting leachate biochemical effluent (CLBE) were optimized via the response surface methodology (RSM). Meanwhile, a comparative study had been done on the failure characteristics of Ti/RuO2-IrO2 anodes in a single electrolyte solution system (H2SO4 and NaCl) and real wastewater (CLBE) by accelerated life tests, respectively. The RSM optimization results showed that the COD, NH3-N and TN removal rates were 50.53%, 100% and 95.61% at 30 min, respectively, with a desirability value of 0.993. In parallel, the electrochemical and material characterizations were carried out on the electrodes before and after failure, by which the failure mechanism of Ti/RuO2-IrO2 anodes was clarified. On the whole, the true failure in the H2SO4 solution was attributed to coating dissolution and Ti substrate oxidation. In contrast, the electrode exhibited "apparent failure" due to the "bubble effect" in both NaCl and CLBE solutions, and the "effective roughness" formed compensated for the loss of activity caused by the absence of the coating. Besides, additional dissolution of the Ti substrate occurred in the CLBE solution due to the current edge effect and the presence of organic matter. This paper takes the actual wastewater as the research object and reveals its electrode failure mechanism, which provides a theoretical basis and reference for the subsequent optimization of the actual electrode service life.
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Affiliation(s)
- Xianni Song
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xu Chen
- China Machinery International Engineering Design & Research Institute Co. Ltd, Changsha, 410007, China
| | - Shuchi Zhang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Donglei Wu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Ecological Civilization Academy, Anji, 313300, China.
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7
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Einert M, Waheed A, Lauterbach S, Mellin M, Rohnke M, Wagner LQ, Gallenberger J, Tian C, Smarsly BM, Jaegermann W, Hess F, Schlaad H, Hofmann JP. Sol-Gel-Derived Ordered Mesoporous High Entropy Spinel Ferrites and Assessment of Their Photoelectrochemical and Electrocatalytic Water Splitting Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205412. [PMID: 36653934 DOI: 10.1002/smll.202205412] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/19/2022] [Indexed: 06/17/2023]
Abstract
The novel material class of high entropy oxides with their unique and unexpected physicochemical properties is a candidate for energy applications. Herein, it is reported for the first time about the physico- and (photo-) electrochemical properties of ordered mesoporous (CoNiCuZnMg)Fe2 O4 thin films synthesized by a soft-templating and dip-coating approach. The A-site high entropy ferrites (HEF) are composed of periodically ordered mesopores building a highly accessible inorganic nanoarchitecture with large specific surface areas. The mesoporous spinel HEF thin films are found to be phase-pure and crack-free on the meso- and macroscale. The formation of the spinel structure hosting six distinct cations is verified by X-ray-based characterization techniques. Photoelectron spectroscopy gives insight into the chemical state of the implemented transition metals supporting the structural characterization data. Applied as photoanode for photoelectrochemical water splitting, the HEFs are photostable over several hours but show only low photoconductivity owing to fast surface recombination, as evidenced by intensity-modulated photocurrent spectroscopy. When applied as oxygen evolution reaction electrocatalyst, the HEF thin films possess overpotentials of 420 mV at 10 mA cm-2 in 1 m KOH. The results imply that the increase of the compositional disorder enhances the electronic transport properties, which are beneficial for both energy applications.
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Affiliation(s)
- Marcus Einert
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287, Darmstadt, Germany
| | - Arslan Waheed
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287, Darmstadt, Germany
| | - Stefan Lauterbach
- Institute for Applied Geosciences, Geomaterial Science, Technical University of Darmstadt, Schnittspahnstrasse 9, 64287, Darmstadt, Germany
| | - Maximilian Mellin
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287, Darmstadt, Germany
| | - Marcus Rohnke
- Center for Materials Research, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Lysander Q Wagner
- Center for Materials Research, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
- Institute for Physical Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Julia Gallenberger
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287, Darmstadt, Germany
| | - Chuanmu Tian
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287, Darmstadt, Germany
| | - Bernd M Smarsly
- Center for Materials Research, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
- Institute for Physical Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Wolfram Jaegermann
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287, Darmstadt, Germany
| | - Franziska Hess
- Institute of Chemistry, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany
| | - Helmut Schlaad
- University of Potsdam, Institute of Chemistry, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Jan P Hofmann
- Surface Science Laboratory, Department of Materials and Earth Sciences, Technical University of Darmstadt, Otto-Berndt-Strasse 3, 64287, Darmstadt, Germany
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8
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Petrucci E, Porcelli F, Orsini M, De Santis S, Sotgiu G. Effect of Precursors on the Electrochemical Properties of Mixed RuOx/MnOx Electrodes Prepared by Thermal Decomposition. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7489. [PMID: 36363080 PMCID: PMC9655995 DOI: 10.3390/ma15217489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Growing thin layers of mixed-metal oxides on titanium supports allows for the preparation of versatile electrodes that can be used in many applications. In this work, electrodes coated with thin films of ruthenium (RuOx) and manganese oxide (MnOx) were fabricated via thermal decomposition of a precursor solution deposited on a titanium substrate by spin coating. In particular, we combined different Ru and Mn precursors, either organic or inorganic, and investigated their influence on the morphology and electrochemical properties of the materials. The tested salts were: Ruthenium(III) acetylacetonate (Ru(acac)3), Ruthenium(III) chloride (RuCl3·xH2O), Manganese(II) nitrate (Mn(NO3)2·4H2O), and Manganese(III) acetylacetonate (Mn(acac)3). After fabrication, the films were subjected to different characterization techniques, including scanning electron microscopy (SEM), polarization analysis, open-circuit potential (OCP) measurements, electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), cyclic voltammetry (CV), and galvanostatic charge-discharge (GCD) experiments. The results indicate that compared to the others, the combination of RuCl3 and Mn(acac) produces fewer compact films, which are more susceptible to corrosion, but have outstanding capacitive properties. In particular, this sample exhibits a capacitance of 8.3 mF cm-2 and a coulombic efficiency of higher than 90% in the entire range of investigated current densities.
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Affiliation(s)
- Elisabetta Petrucci
- Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Francesco Porcelli
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Monica Orsini
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Serena De Santis
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Giovanni Sotgiu
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
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9
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Gyanprakash D M, Sharma GP, Gupta PK. Isovalent anion-induced electrochemical activity of doped Co 3V 2O 8 for oxygen evolution reaction application. Dalton Trans 2022; 51:15312-15321. [PMID: 36043387 DOI: 10.1039/d2dt01857h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The activity of an OER electrocatalyst is a strong function of the reaction kinetics at the active sites, which can be influenced by catalytic engineering (e.g., heterostructure, doping, and the addition of cocatalysts). Herein, we report the improved reaction kinetics of cobalt oxide for the OER via the addition of high valence vanadium and thereafter doping with sulphur (S-Co3V2O8). The addition of vanadium increases the oxygen vacancy while the doping of sulphur increases the electronic conductivity of the electrocatalyst. The synergic effect of the oxygen vacancy and electronic conductivity increases the activity of S-Co3V2O8. Furthermore, S-Co3V2O8 showed the least Tafel slope, which showed the activity enhancement towards the oxygen evolution reaction. Moreover, the underlying reaction mechanism is explored by electrochemical impedance spectroscopy, which reveals that the ratio of polarisation resistance to double-layer capacitance is minimum for S-Co3V2O8, indicating the highest activity.
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Affiliation(s)
- Maurya Gyanprakash D
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur-208016, India. .,Centre for Advanced Studies, Lucknow-226031, India
| | - Gyan Prakash Sharma
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur-208016, India. .,Kanopy Techno Solutions Pvt Ltd, Techno Park, Kanpur-208016, India
| | - Prashant Kumar Gupta
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur-208016, India. .,Department of Chemical Engineering, Indian Institute of Technology, Jodhpur-342037, India
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10
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Highly Efficient Decarboxylation of L-Lysine to Cadaverine Catalyzed by RuO2 Encapsulated in FAU Zeolite. Catalysts 2022. [DOI: 10.3390/catal12070733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The development of an efficient catalyst especially with a high productivity for decarboxylation of L-lysine to cadaverine, is of both industrial and economic significance. Here, we reported the synthesis of RuO2 well-confined in the supercage of FAU zeolite (RuO2@FAU) through in situ hydrothermal strategies. A set of characterizations, such as XRD, Raman, TEM, XPS, NH3-TPD and N2 physical adsorption, confirmed the successful encapsulation of RuO2 clusters (~1.5 nm) inside the FAU zeolite. RuO2@FAU had the higher cadaverine productivity of 120.9 g/L/h/mmol cat., which was almost six times that of traditionally supported ruthenium oxide catalysts (21.2 g/L/h/mmol cat.). RuO2@FAU catalysts with different ammonia exchange degrees, as well as different Si/Al ratios were further evaluated. After optimization, the highest cadaverine productivity of 480.3 g/L/h/mmol cat. was obtained. Deep analysis of the electronic properties of RuO2@FAU indicated that the surface defect structures, such as oxygen vacancies, played a vital role in the adsorption or activation of L-lysine which finally led to a boosted performance. Furthermore, the mechanism of decarboxylation of L-lysine to cadaverine was proposed.
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11
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Shaheen Shah S, Abdul Aziz M, Al-Betar AR, Mahfoz W. Electrodeposition of polyaniline on high electroactive indium tin oxide nanoparticles-modified fluorine doped tin oxide electrode for fabrication of high-performance hybrid supercapacitor. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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12
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Zirconyl chloride and its uses in phosphorus chemistry. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02266-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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Mixed Oxide Electrodes Based on Ruthenium and Copper: Electrochemical Properties as a Function of the Composition and Method of Manufacture. METALS 2022. [DOI: 10.3390/met12020316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of mixed oxide electrodes is being intensively investigated to reduce the high cost associated with the use of noble metals and to obtain versatile and long-lasting devices. To evaluate their use for charge storage or anodic oxidation, in this paper, thin-film electrodes coated with ruthenium (RuOx) and copper oxide (CuOx) are fabricated by thermal decomposition of organic solutions containing the precursors by drop-casting on titanium (Ti) foils. The coating consisted of four layers of metal oxide. To investigate the effect of copper (Cu) on electrochemical performances, different approaches are adopted by varying the ratios of precursors’ concentration and including a RuOx interlayer. A comparison with samples obtained by only RuOx has been also performed. The electrodes are characterized using scanning electron microscopy (SEM), cyclic (CV) and linear sweep (LSV) voltammetry, electrochemical impedance spectroscopy (EIS), and corrosion tests. The addition of Cu enhances the capacitive response of the materials and promotes electron transfer reversibility. The coatings obtained by the highest Ru:Cu ratio (95:5) exhibit a more uniform surface distribution and increased corrosion resistance. The interlayer is beneficial to further reduce the corrosion susceptibility and to promote the oxygen evolution but detrimental in the charge storage power. The results suggest the possibility to enhance the electrochemical performance of expensive RuOx through a combination with a low amount of cheaper and more abundant CuOx.
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14
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Fang Y, Hou Y, Fu X, Wang X. Semiconducting Polymers for Oxygen Evolution Reaction under Light Illumination. Chem Rev 2022; 122:4204-4256. [PMID: 35025505 DOI: 10.1021/acs.chemrev.1c00686] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Sunlight-driven water splitting to produce hydrogen fuel has stimulated intensive scientific interest, as this technology has the potential to revolutionize fossil fuel-based energy systems in modern society. The oxygen evolution reaction (OER) determines the performance of overall water splitting owing to its sluggish kinetics with multielectron transfer processing. Polymeric photocatalysts have recently been developed for the OER, and substantial progress has been realized in this emerging research field. In this Review, the focus is on the photocatalytic technologies and materials of polymeric photocatalysts for the OER. Two practical systems, namely, particle suspension systems and film-based photoelectrochemical systems, form two main sections. The concept is reviewed in terms of thermodynamics and kinetics, and polymeric photocatalysts are discussed based on three key characteristics, namely, light absorption, charge separation and transfer, and surface oxidation reactions. A satisfactory OER performance by polymeric photocatalysts will eventually offer a platform to achieve overall water splitting and other advanced applications in a cost-effective, sustainable, and renewable manner using solar energy.
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Affiliation(s)
- Yuanxing Fang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Yidong Hou
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Xianzhi Fu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
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15
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Karthik PE, Rajan H, Jothi VR, Sang BI, Yi SC. Electronic wastes: A near inexhaustible and an unimaginably wealthy resource for water splitting electrocatalysts. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126687. [PMID: 34332482 DOI: 10.1016/j.jhazmat.2021.126687] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 05/27/2023]
Abstract
E-wastes comprise complex combinations of potentially toxic elements that cause detrimental effects of the environmental contamination; besides their posing threat, most of the products also contain valuable and recoverable materials (Li, Au, Ag, W, Se, Te, etc.), which make them distinct from other forms of industrial wastes. Most of these value-added elements which are primarily employed in electronic goods are disposed of by incineration and land-filling. This is a serious issue besides just environmental pollution, as IUPAC recognized that such ignorance of or poor attention to e-waste recycling has put several elements in the periodic table to the list of endangered elements. Recycling these wastes utilized for electrocatalytic water splitting to produce H2. These recovered e-wastes materials are used as electrocatalysts for the water-splitting, additives to enhance reaction kinetics, and substrate electrodes as well. Recycling and recovery of value-added materials in the view of applying them to electrocatalytic water splitting with endangered elements' perspective have not been covered by any recent review so far. Hence, this review is dedicated to discussing the opportunities available with recycling e-wastes, types of value-added materials that can be recovered for water splitting, strategies exploited, and prospects are discussed in details.
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Affiliation(s)
- Pitchiah Esakki Karthik
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Hashikaa Rajan
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Vasanth Rajendiran Jothi
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Byoung-In Sang
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Sung Chul Yi
- Department of Chemical Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea; Department of Hydrog en and Fuel cell technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.
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16
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Mugheri AQ, Tahira A, Aftab U, Nafady A, Vigolo B, Ibupoto ZH. Facile
Co
3
O
4
nanoparticles deposited on polyvinylpyrrolidine for efficient water oxidation in alkaline media. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abdul Qayoom Mugheri
- Dr. M.A Kazi Institute of Chemistry University of Sindh Jamshoro Jamshoro Pakistan
| | - Aneela Tahira
- Dr. M.A Kazi Institute of Chemistry University of Sindh Jamshoro Jamshoro Pakistan
| | - Umair Aftab
- Department of Metallurgy and Materials Engineering Mehran University of Engineering and Technology Jamshoro Pakistan
| | - Ayman Nafady
- Department of Chemistry, College of Science King Saud University Riyadh Saudi Arabia
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17
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Chen J, Chen H, Yu T, Li R, Wang Y, Shao Z, Song S. Recent Advances in the Understanding of the Surface Reconstruction of Oxygen Evolution Electrocatalysts and Materials Development. ELECTROCHEM ENERGY R 2021. [DOI: 10.1007/s41918-021-00104-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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18
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19
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Zhang X, Dong CL, Wang Y, Chen J, Arul KT, Diao Z, Fu Y, Li M, Shen S. Regulating Crystal Structure and Atomic Arrangement in Single-Component Metal Oxides through Electrochemical Conversion for Efficient Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57038-57046. [PMID: 33300348 DOI: 10.1021/acsami.0c16659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Single-component transition-metal oxide (TMO: FeOx, NiOx, or CoOx) nanosheets grown on nickel foam (NF) were electrochemically optimized with Li ion (Na ion)-induced conversion reaction for bifunctional electrocatalysis. The optimum FeOx/NF-Li electrocatalyst exhibits low overpotentials of 239 mV for hydrogen evolution reaction and 276 mV for oxygen evolution reaction at a current density of 100 mA cm-2. A two-electrode water splitting cell using FeOx/NF-Li as both anode and cathode requires only 1.60 V to achieve a current density of 10 mA cm-2. The impressive water splitting performance of the FeOx/NF-Li electrode is revealed to be attributed to Li-induced electrochemical conversion, which alters the crystal structure, creating more active sites for electrocatalytic reactions, as well as introduces O vacancies increasing the electron density and the intrinsic conductivity. More importantly, the atomic arrangement is regulated from tetrahedral Fe(Td) to octahedral Fe(Oh) coordination, which acts as catalytically active sites with reduced Gibbs free energy for the rate-determining steps. This electrochemical conversion reaction can be extended to other TMOs (i.e., NiOx/NF and CoOx/NF) for promoted electrocatalytic water splitting performances. This study provides an in-depth understanding on the nature of atomic and electronic structure evolution to promote the electrocatalytic activity.
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Affiliation(s)
- Xiaoping Zhang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Chung-Li Dong
- Department of Physics, Tamkang University, 151 Yingzhuan Road, New Taipei City 25137, Taiwan
| | - Yiqing Wang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jie Chen
- Division of Physical Science and Engineering (PSE), and KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | | | - Zhidan Diao
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yanming Fu
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Mingtao Li
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Shaohua Shen
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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20
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Fink MF, Eckhardt J, Khadke P, Gerdes T, Roth C. Bifunctional
α
‐MnO
2
and Co
3
O
4
Catalyst for Oxygen Electrocatalysis in Alkaline Solution. ChemElectroChem 2020. [DOI: 10.1002/celc.202001325] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael F. Fink
- Chair of Electrochemical Process Engineering University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
- Bavarian Center for Battery Technology (BayBatt) University of Bayreuth 95447 Bayreuth Germany
| | - Julia Eckhardt
- Chair of Electrochemical Process Engineering University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Prashant Khadke
- Chair of Electrochemical Process Engineering University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
| | - Thorsten Gerdes
- Chair of Ceramic Materials Engineering Keylab Glass Technology University of Bayreuth Prof.-Rüdiger-Bormann-Str. 1 95447 Bayreuth Germany
- Bavarian Center for Battery Technology (BayBatt) University of Bayreuth 95447 Bayreuth Germany
| | - Christina Roth
- Chair of Electrochemical Process Engineering University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
- Bavarian Center for Battery Technology (BayBatt) University of Bayreuth 95447 Bayreuth Germany
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21
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Etzi Coller Pascuzzi M, Velzen M, Hofmann JP, Hensen EJM. On the Stability of Co
3
O
4
Oxygen Evolution Electrocatalysts in Acid. ChemCatChem 2020. [DOI: 10.1002/cctc.202001428] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Marco Etzi Coller Pascuzzi
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Matthijs Velzen
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jan P. Hofmann
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
- Surface Science Laboratory Department of Materials and Earth Sciences Technical University of Darmstadt Otto-Berndt-Strasse 3 64287 Darmstadt Germany
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials and Catalysis Department of Chemical Engineering and Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
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22
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Sayeed MA, Heron J, Love J, O'Mullane AP. Activating Iron Based Materials for Overall Electrochemical Water Splitting via the Incorporation of Noble Metals. Chem Asian J 2020; 15:4339-4346. [DOI: 10.1002/asia.202001113] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/18/2020] [Indexed: 01/20/2023]
Affiliation(s)
- Md Abu Sayeed
- School of Chemistry and Physics Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
- Centre for Materials Science Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
| | - Jonathan Heron
- School of Chemistry and Physics Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
| | - Jonathan Love
- School of Chemistry and Physics Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
- Centre for Clean Energy Technology and Practices Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
| | - Anthony P. O'Mullane
- School of Chemistry and Physics Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
- Centre for Materials Science Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
- Centre for Clean Energy Technology and Practices Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
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23
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Efficient Multifunctional Catalytic and Sensing Properties of Synthesized Ruthenium Oxide Nanoparticles. Catalysts 2020. [DOI: 10.3390/catal10070780] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Ruthenium oxide is one of the most active electrocatalyst for oxygen evolution (OER) and oxygen reduction reaction (ORR). Herein, we report simple wet chemical route to synthesize RuO2 nanoparticles at controlled temperature. The structural, morphological and surface area studies of the synthesized nanoparticles were conducted with X-ray diffraction, electron microscopy and BETsurface area studies. The bifunctional electrocatalytic performance of RuO2 nanoparticles was studied under different atmospheric conditions for OER and ORR, respectively, versus reversible hydrogen electrode (RHE) in alkaline medium. Low Tafel slopes of RuO2 nanoparticles were found to be ~47 and ~49 mV/dec for OER and ORR, respectively, in oxygen saturated 0.5 M KOH system. Moreover, the catalytic activity of RuO2 nanoparticles was examined against the Horseradish peroxidase enzyme (HRP) at high temperature, and the nanoparticles were applied as a sensor for the detection of H2O2 in the solution.
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24
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Cobalt porphyrin supported on graphene/Ni (111) surface: Enhanced oxygen evolution/reduction reaction and the role of electron coupling. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.10.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Ir-Sn-Sb-O Electrocatalyst for Oxygen Evolution Reaction: Physicochemical Characterization and Performance in Water Electrolysis Single Cell with Solid Polymer Electrolyte. Catalysts 2020. [DOI: 10.3390/catal10050524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Mixed oxide Ir-Sn-Sb-O electrocatalyst was synthesized using thermal decomposition from chloride precursors in ethanol. Our previous results showed that Ir-Sn-Sb-O possesses electrocatalytic activity for an oxygen evolution reaction (OER) in acidic media. In the present work, the physicochemical characterization and performance of Ir-Sn-Sb-O in an electrolysis cell are reported. IrO2 supported on antimony doped tin oxide (ATO) was also considered in this study as a reference catalyst. Scanning electron microscopy (SEM) images indicated that Ir-Sn-Sb-O has a mixed morphology with nanometric size. Energy dispersive X-ray spectroscopy (EDS) showed a heterogeneous atomic distribution. Transmission electron microscopy (TEM) analysis resulted in particle sizes of IrO2 and ATO between 3 to >10 nm, while the Ir-Sn-Sb-O catalyst presented non-uniform particle sizes from 3 to 50 nm. X-ray diffraction (XRD) measurements indicated that synthesized mixed oxide consists of IrO2, IrOx, doped SnO2 phases and metallic Ir. The Ir-Sn-Sb-O mixed composition was corroborated by temperature programmed reduction (TPR) measurements. The performance of Ir-Sn-Sb-O in a single cell electrolyser showed better results for hydrogen production than IrO2/ATO using a mechanical mixture. Ir-Sn-Sb-O demonstrated an onset potential for water electrolysis close to 1.45 V on Ir-Sn-Sb-O and a current density near to 260 mA mg−1 at 1.8 V. The results suggest that the mixed oxide Ir-Sn-Sb-O has favorable properties for further applications in water electrolysers.
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26
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Li S, Li YL, Zhang ZG, Chen XY, Xiao H, Lin L, Wu WQ, Wu XY, Jiang XY. LaCoO3-modified RuO2–TiO2/Ti electrode as an efficient electrocatalyst for oxygen evolution reaction. J APPL ELECTROCHEM 2020. [DOI: 10.1007/s10800-020-01424-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Singh A, Schneller T, Valov I, Singh I, Srivastava A, Waser R. Copper facilitated nickel oxy-hydroxide films as efficient synergistic oxygen evolution electrocatalyst. J Catal 2020. [DOI: 10.1016/j.jcat.2020.02.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Mooni SP, Kondamareddy KK, Li S, Zhou X, Chang L, Ke X, Yang X, Li D, Qu Q. Graphene oxide decorated bimetal (MnNi) oxide nanoflakes used as an electrocatalyst for enhanced oxygen evolution reaction in alkaline media. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2019.10.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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29
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Liao H, Guo X, Hou Y, Liang H, Zhou Z, Yang H. Construction of Defect-Rich Ni-Fe-Doped K 0.23 MnO 2 Cubic Nanoflowers via Etching Prussian Blue Analogue for Efficient Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905223. [PMID: 32049431 DOI: 10.1002/smll.201905223] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 12/17/2019] [Indexed: 05/16/2023]
Abstract
Designing elaborate nanostructures and engineering defects have been promising approaches to fabricate cost-efficient electrocatalysts toward overall water splitting. In this work, a controllable Prussian-blue-analogue-sacrificed strategy followed by an annealing process to harvest defect-rich Ni-Fe-doped K0.23 MnO2 cubic nanoflowers (Ni-Fe-K0.23 MnO2 CNFs-300) as highly active bifunctional catalysts for oxygen and hydrogen evolution reactions (OER and HER) is reported. Benefiting from many merits, including unique morphology, abundant defects, and doping effect, Ni-Fe-K0.23 MnO2 CNFs-300 shows the best electrocatalytic performances among currently reported Mn oxide-based electrocatalysts. This catalyst affords low overpotentials of 270 (320) mV at 10 (100) mA cm-2 for OER with a small Tafel slope of 42.3 mV dec-1 , while requiring overpotentials of 116 and 243 mV to attain 10 and 100 mA cm-2 for HER respectively. Moreover, Ni-Fe-K0.23 MnO2 CNFs-300 applied to overall water splitting exhibits a low cell voltage of 1.62 V at 10 mA cm-2 and excellent durability, even superior to the Pt/C||IrO2 cell at large current density. Density functional theory calculations further confirm that doping Ni and Fe into the crystal lattice of δ-MnO2 can not only reinforce the conductivity but also reduces the adsorption free-energy barriers on the active sites during OER and HER.
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Affiliation(s)
- Huanyun Liao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xingzhong Guo
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yang Hou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Hao Liang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zheng Zhou
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Hui Yang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou, 310058, P. R. China
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30
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McLeod LK, Spikes GH, Kashtiban RJ, Walker M, Chadwick AV, Sharman JDB, Walton RI. Structures of mixed manganese ruthenium oxides (Mn 1-xRu x)O 2 crystallised under acidic hydrothermal conditions. Dalton Trans 2020; 49:2661-2670. [PMID: 32048696 DOI: 10.1039/c9dt04156g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A synthesis method for the preparation of mixed manganese-ruthenium oxides is presented along with a detailed characterisation of the solids produced. The use of 1 M aqueous sulfuric acid mediates the redox reaction between KRuO4, KMnO4 and Mn2+ to form ternary oxides. At reaction temperature of 100 °C the products are mixtures of α-MnO2 (hollandite-type) and β-MnO2 (rutile-type), with some evidence of Ru incorporation in each from their expanded unit cell volumes. At reaction temperature of 200 °C solid-solutions β-Mn1-xRuxO2 are formed and materials with x ≤ 0.6 have been studied. The amount of Ru included in the oxide is greater than expected from the ratio of metals used in the synthesis, as determined by elemental analysis, implying that some Mn remains unreacted in solution. Powder X-ray diffraction (XRD) shows that while the unit cell volume expands in a linear manner, following Vegard's law, the tetragonal lattice parameters, and the a/c ratio, do not follow the extrapolated trends: this anisotropic behaviour is consistent with the different local coordination of the metals in the end members. Powder XRD patterns show increased peak broadening with increasing ruthenium content, which is corroborated by electron microscopy that shows nanocrystalline material. X-ray absorption near-edge spectra show that the average oxidation state of Mn in the solid solutions is reduced below +4 while that of Ru is increased above +4, suggesting some redistribution of charge. Analysis of the extended X-ray absorption fine structure provides complementary local structural information, confirming the formation of a solid solution, while X-ray photoelectron spectroscopy shows that the surface oxidation states of both Ru and Mn are on average lower than +4, suggesting a disordered surface layer may be present in the materials.
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Affiliation(s)
- Lucy K McLeod
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK.
| | - Geoffrey H Spikes
- Johnson Matthey Technology Centre, Blounts Court, Sonning Common, Reading, RG4 9NH, UK
| | - Reza J Kashtiban
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
| | - Marc Walker
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
| | - Alan V Chadwick
- School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NH, UK
| | - Jonathan D B Sharman
- Johnson Matthey Technology Centre, Blounts Court, Sonning Common, Reading, RG4 9NH, UK
| | - Richard I Walton
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK.
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31
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Singh B, Indra A. Designing Self‐Supported Metal‐Organic Framework Derived Catalysts for Electrochemical Water Splitting. Chem Asian J 2020; 15:607-623. [DOI: 10.1002/asia.201901810] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/30/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Baghendra Singh
- Department of ChemistryIndian Institute of Technology (BHU) Varanasi Uttar Pradesh 221005 India
| | - Arindam Indra
- Department of ChemistryIndian Institute of Technology (BHU) Varanasi Uttar Pradesh 221005 India
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32
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Connor P, Schuch J, Kaiser B, Jaegermann W. The Determination of Electrochemical Active Surface Area and Specific Capacity Revisited for the System MnOx as an Oxygen Evolution Catalyst. ACTA ACUST UNITED AC 2020. [DOI: 10.1515/zpch-2019-1514] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the last decades several different catalysts for the electrochemical water splitting reaction have been designed and tested. In so-called benchmark papers they are compared with respect to their efficiency and activity. In order to relate the different catalyst to each other the definition of well-defined procedures is required. Two different methods are mainly used: Either the normalization with respect to the geometric surface area or to the catalyst loading. Most often only one of these values is available for a sample and the other one cannot be estimated easily. One approach in electrocatalysis is to determine the Helmholtz double layer capacitance (DLC) and deduce the electrochemical active surface area (ECSA). The DLC can be obtained from two different methods, either using differential capacitance measurement (DCM) or impedance spectroscopy (EIS). The second value needed for the calculation of the ECSA is the specific capacitance, which is the capacitance for a perfectly flat surface of given catalyst material. Here, we present the determination of the different capacitance values using manganese oxide as the exemplary model for the oxygen evolution reaction (OER). We determine the capacitance by DCM and EIS to calculate the ECSA using literature values for the specific capacitance. The obtained values are comparable from the two methods, but are much larger than the surface areas obtained by atomic force microscopy. Therefore, we consider the possibility of using the measured AFM area together with the Helmholtz capacitance to determine the specific capacitances for this material class. The comparison of these results with literature values illustrates the actual limits of the ECSA method, which will be discussed in this paper.
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Affiliation(s)
- Paula Connor
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
| | - Jona Schuch
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
| | - Bernhard Kaiser
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
| | - Wolfram Jaegermann
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
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33
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Trogadas P, Coppens MO. Nature-inspired electrocatalysts and devices for energy conversion. Chem Soc Rev 2020; 49:3107-3141. [DOI: 10.1039/c8cs00797g] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A NICE approach for the design of nature-inspired electrocatalysts and electrochemical devices for energy conversion.
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Affiliation(s)
- Panagiotis Trogadas
- EPSRC “Frontier Engineering” Centre for Nature Inspired Engineering & Department of Chemical Engineering
- University College London
- London
- UK
| | - Marc-Olivier Coppens
- EPSRC “Frontier Engineering” Centre for Nature Inspired Engineering & Department of Chemical Engineering
- University College London
- London
- UK
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34
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Amtawong J, Balcells D, Wilcoxen J, Handford RC, Biggins N, Nguyen AI, Britt RD, Tilley TD. Isolation and Study of Ruthenium-Cobalt Oxo Cubanes Bearing a High-Valent, Terminal Ru V-Oxo with Significant Oxyl Radical Character. J Am Chem Soc 2019; 141:19859-19869. [PMID: 31697896 DOI: 10.1021/jacs.9b10320] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
High-valent RuV-oxo intermediates have long been proposed in catalytic oxidation chemistry, but investigations into their electronic and chemical properties have been limited due to their reactive nature and rarity. The incorporation of Ru into the [Co3O4] subcluster via the single-step assembly reaction of CoII(OAc)2(H2O)4 (OAc = acetate), perruthenate (RuO4-), and pyridine (py) yielded an unprecedented Ru(O)Co3(μ3-O)4(OAc)4(py)3 cubane featuring an isolable, yet reactive, RuV-oxo moiety. EPR, ENDOR, and DFT studies reveal a valence-localized [RuV(S = 1/2)CoIII3(S = 0)O4] configuration and non-negligible covalency in the cubane core. Significant oxyl radical character in the RuV-oxo unit is experimentally demonstrated by radical coupling reactions between the oxo cubane and both 2,4,6-tri-tert-butylphenoxyl and trityl radicals. The oxo cubane oxidizes organic substrates and, notably, reacts with water to form an isolable μ-oxo bis-cubane complex [(py)3(OAc)4Co3(μ3-O)4Ru]-O-[RuCo3(μ3-O)4(OAc)4(py)3]. Redox activity of the RuV-oxo fragment is easily tuned by the electron-donating ability of the distal pyridyl ligand set at the Co sites demonstrating strong electronic communication throughout the entire cubane cluster. Natural bond orbital calculations reveal cooperative orbital interactions of the [Co3O4] unit in supporting the RuV-oxo moiety via a strong π-electron donation.
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Affiliation(s)
- Jaruwan Amtawong
- Department of Chemistry , University of California at Berkeley , Berkeley , California 94720-1460 , United States
| | - David Balcells
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry , University of Oslo , P.O. Box 1033, Blindern, 0315 Oslo , Norway
| | - Jarett Wilcoxen
- Department of Chemistry , University of California , Davis , California 95616 , United States
| | - Rex C Handford
- Department of Chemistry , University of California at Berkeley , Berkeley , California 94720-1460 , United States
| | - Naomi Biggins
- Department of Chemistry , University of California at Berkeley , Berkeley , California 94720-1460 , United States
| | - Andy I Nguyen
- Department of Chemistry , University of California at Berkeley , Berkeley , California 94720-1460 , United States.,Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - R David Britt
- Department of Chemistry , University of California , Davis , California 95616 , United States
| | - T Don Tilley
- Department of Chemistry , University of California at Berkeley , Berkeley , California 94720-1460 , United States.,Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
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35
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Yu J, He Q, Yang G, Zhou W, Shao Z, Ni M. Recent Advances and Prospective in Ruthenium-Based Materials for Electrochemical Water Splitting. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02457] [Citation(s) in RCA: 299] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jie Yu
- Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
| | - Qijiao He
- Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
| | - Guangming Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5, Xin Mofan Road, Nanjing 210009, PR China
| | - Wei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5, Xin Mofan Road, Nanjing 210009, PR China
| | - Zongping Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 5, Xin Mofan Road, Nanjing 210009, PR China
- Department of Chemical Engineering, Curtin University, Perth, Western Australia 6845, Australia
| | - Meng Ni
- Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
- Environmental Energy Research Group, Research Institute for Sustainable Urban Development (RISUD), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
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36
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Chakraborty D, Nandi S, Illathvalappil R, Mullangi D, Maity R, Singh SK, Haldar S, Vinod CP, Kurungot S, Vaidhyanathan R. Carbon Derived from Soft Pyrolysis of a Covalent Organic Framework as a Support for Small-Sized RuO 2 Showing Exceptionally Low Overpotential for Oxygen Evolution Reaction. ACS OMEGA 2019; 4:13465-13473. [PMID: 31460475 PMCID: PMC6705268 DOI: 10.1021/acsomega.9b01777] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 07/25/2019] [Indexed: 05/23/2023]
Abstract
Electrochemical water splitting is the most energy-efficient technique for producing hydrogen and oxygen, the two valuable gases. However, it is limited by the slow kinetics of the anodic oxygen evolution reaction (OER), which can be improved using catalysts. Covalent organic framework (COF)-derived porous carbon can serve as an excellent catalyst support. Here, we report high electrocatalytic activity of two composites, formed by supporting RuO2 on carbon derived from two COFs with closely related structures. These composites catalyze oxygen evolution from alkaline media with overpotentials as low as 210 and 217 mV at 10 mA/cm2, respectively. The Tafel slopes of these catalysts (65 and 67 mV/dec) indicate fast kinetics compared to commercial RuO2. The observed activity is the highest among all RuO2-based heterogeneous OER catalysts-a touted benchmark OER catalyst. The high catalytic activity arises from the extremely small-sized (∼3-4 nm) RuO2 nanoparticles homogeneously dispersed in a micro-mesoporous (BET = 517 m2/g) COF-derived carbon. The porous graphenic carbon favors mass transfer, while its N-rich framework anchors the catalytic nanoparticles, making it highly stable and recyclable. Crucially, the soft pyrolysis of the COF enables the formation of porous carbon and simultaneous growth of small RuO2 particles without aggregation.
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Affiliation(s)
- Debanjan Chakraborty
- Department
of Chemistry and Centre for Energy Science, Indian Institute
of Science Education and Research, Pune 411008, India
| | - Shyamapada Nandi
- Department
of Chemistry and Centre for Energy Science, Indian Institute
of Science Education and Research, Pune 411008, India
| | - Rajith Illathvalappil
- Physical
and Materials Chemistry Division, CSIR-National
Chemical Laboratory, Pune 411008, India
| | - Dinesh Mullangi
- Department
of Chemistry and Centre for Energy Science, Indian Institute
of Science Education and Research, Pune 411008, India
| | - Rahul Maity
- Department
of Chemistry and Centre for Energy Science, Indian Institute
of Science Education and Research, Pune 411008, India
| | - Santosh K. Singh
- Physical
and Materials Chemistry Division, CSIR-National
Chemical Laboratory, Pune 411008, India
| | - Sattwick Haldar
- Department
of Chemistry and Centre for Energy Science, Indian Institute
of Science Education and Research, Pune 411008, India
| | | | - Sreekumar Kurungot
- Physical
and Materials Chemistry Division, CSIR-National
Chemical Laboratory, Pune 411008, India
| | - Ramanathan Vaidhyanathan
- Department
of Chemistry and Centre for Energy Science, Indian Institute
of Science Education and Research, Pune 411008, India
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37
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Wang Y, Wang Y, Zhang L, Liu CS, Pang H. PBA@POM Hybrids as Efficient Electrocatalysts for the Oxygen Evolution Reaction. Chem Asian J 2019; 14:2790-2795. [PMID: 31246373 DOI: 10.1002/asia.201900791] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 06/18/2019] [Indexed: 01/14/2023]
Abstract
To realize the effective conversion of renewable energy through water decomposition, efficient electrocatalysts for the oxygen evolution reaction (OER) are essential. In this article, PBA@POM was successfully prepared with a Prussian blue analogue (PBA) as the initial structure. A facile hydrothermal process is reported for obtaining PBA@POM by etching the cubic PBA with a strong Brønsted acid, H3 PMo12 O40 (HPMo). The hollow cube structure not only exposes more active sites but also promotes electron transport, which results in excellent electrocatalytic activity for the OER. Compared with the PBA, which initially simply adhered to POM, the optimum PBA@POM hybrids display remarkably enhanced OER catalytic activity, with an almost constant overpotential of 440 mV at a current density of 10 mA cm-2 and a small Tafel slope (23.45 mV dec-1 ). The facilely prepared PBA@POM with good electrochemical activity and stability promises great potential for the OER.
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Affiliation(s)
- Yuyin Wang
- Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, Jiangsu, P. R. China
| | - Yan Wang
- Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, Jiangsu, P. R. China
| | - Li Zhang
- Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, Jiangsu, P. R. China
| | - Chun-Sen Liu
- Henan Provincial Key Laboratory of Surface&Interface Science, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China
| | - Huan Pang
- Guangling College, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, Jiangsu, P. R. China
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38
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Electrochemical oscillation on anode regulated by sodium oleate in electrolytic metal manganese. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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39
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Kim JC, Oh SI, Kang W, Yoo HY, Lee J, Kim DW. Superior anodic oxidation in tailored Sb-doped SnO2/RuO2 composite nanofibers for electrochemical water treatment. J Catal 2019. [DOI: 10.1016/j.jcat.2019.04.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Zhou Y, Gao G, Li Y, Chu W, Wang LW. Transition-metal single atoms in nitrogen-doped graphenes as efficient active centers for water splitting: a theoretical study. Phys Chem Chem Phys 2019; 21:3024-3032. [PMID: 30672565 DOI: 10.1039/c8cp06755d] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly active single-atom catalysts (SACs) have recently been intensively studied for their potential in the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). Due to the existence of many such SAC systems, a general understanding of the trend and designing principle is necessary to discover an optimal SAC system. In this work, by using density functional theory (DFT), we investigated a series of late single transition metals (TM = Fe, Co, Ni, Cu, and Pd) anchored on various N doped graphenes (xN-TM, x = 1-4) as electrocatalysts for both the HER and OER. Solvent effects were taken into account using an implicit continuum model. Our results reveal that the catalytic activity of SACs is determined by the local coordination number of N and TM in the catalysts. Among the considered catalysts, a low-coordinated Co site, i.e. a triple-coordinated Co, exhibits a high catalytic activity toward the HER with a calculated hydrogen adsorption free energy of -0.01 eV, whereas a high-coordinated Co center, i.e. a quadruple-coordinated Co is a promising candidate for the OER with a low computed overpotential of -0.39 V, which are comparable to those of noble metal catalysts, indicating superior HER and OER performance of N-Co co-doped graphenes. The results shed light on the potential applications of TM and N co-doped graphenes as efficient single-atom bifunctional catalysts for water splitting, thereby functioning as promising candidates for hydrogen/oxygen production.
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Affiliation(s)
- Yanan Zhou
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, Sichuan, China.
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41
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Cui C, Ge X, An T, Li B, Wuu D, Tham NN, Zhang K, He Y, Liu Z. A nanostructured nickel/carbon matrix as an efficient oxygen evolution reaction electrocatalyst for rechargeable zinc–air batteries. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00402e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An oxygen evolution electrode (OEE) is essential to improve the rechargeablility of Zn–air batteries.
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Affiliation(s)
- Chengqiang Cui
- School of Electromechanical Engineering
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Xiaoming Ge
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science
- Technology and Research)
- Singapore 138634
- Republic of Singapore
| | - Tao An
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science
- Technology and Research)
- Singapore 138634
- Republic of Singapore
| | - Bing Li
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science
- Technology and Research)
- Singapore 138634
- Republic of Singapore
| | - Delvin Wuu
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science
- Technology and Research)
- Singapore 138634
- Republic of Singapore
| | - Nguk Neng Tham
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science
- Technology and Research)
- Singapore 138634
- Republic of Singapore
| | - Kai Zhang
- School of Electromechanical Engineering
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Yunbo He
- School of Electromechanical Engineering
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Zhaolin Liu
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science
- Technology and Research)
- Singapore 138634
- Republic of Singapore
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42
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Agoston R, Abu Sayeed M, Jones MWM, de Jonge MD, O'Mullane AP. Monitoring compositional changes in Ni(OH)2 electrocatalysts employed in the oxygen evolution reaction. Analyst 2019; 144:7318-7325. [DOI: 10.1039/c9an01905g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Relating morphology and compositional changes spatially across a catalyst is important for understanding the active site involved in a reaction which is studied here for the OER at Ni(OH)2.
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Affiliation(s)
- Roland Agoston
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Australia
| | - Md Abu Sayeed
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Australia
| | - Michael W. M. Jones
- Central Analytical Research Facility
- Institute for Future Environments
- Queensland University of Technology (QUT)
- Australia
| | | | - Anthony P. O'Mullane
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Australia
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43
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Ramsundar RM, Pillai VK, Joy PA. Spin state engineered Zn xCo 3-xO 4 as an efficient oxygen evolution electrocatalyst. Phys Chem Chem Phys 2018; 20:29452-29461. [PMID: 30456399 DOI: 10.1039/c8cp06641h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Oxygen evolution is the key step in the oxidation of water in electrolyzers and photoelectrochemical cells for the production of hydrogen. Developing a non-precious metal oxide catalyst with good electrocatalytic activity for the oxygen evolution reaction (OER) is very challenging. In this work, nanostructured ZnxCo3-xO4 has been shown as an efficient catalyst with a low overpotential for the OER in 0.1 M KOH solution. Substitution of Co2+ in the spinel oxide Co3O4 with Zn2+ creates a higher number of high-spin Co3+, which is found to be directly correlated with the OER activity of ZnxCo3-xO4. Zn0.8Co2.2O4 (x = 0.8) with the optimum amount of Co2+/Co3+ and high-spin Co3+ content showed a very low overpotential of ∼250 mV, at 10 mA cm-2, with a turnover frequency of ∼3 × 10-3 s-1 for the OER. The high Faradaic efficiency along with the stability of Zn0.8Co2.2O4 and electrocatalytic activity comparable with that of precious metal oxides indicate that this composition is a promising catalyst for water oxidation.
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Affiliation(s)
- Rani Mohan Ramsundar
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Pune 411008, India.
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44
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Tovini MF, Patil B, Koz C, Uyar T, Yılmaz E. Nanohybrid structured RuO 2/Mn 2O 3/CNF as a catalyst for Na-O 2 batteries. NANOTECHNOLOGY 2018; 29:475401. [PMID: 30192237 DOI: 10.1088/1361-6528/aadfb7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A 3D RuO2/Mn2O3/carbon nanofiber (CNF) composite has been prepared in this study by a facile two step microwave synthesis, as a bi-functional electrocatalyst towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). RuO2 nanoparticles with the mean size of 1.57 nm are uniformly distributed on Mn2O3 nano-rods grown on electrospun CNFs. The electrocatalytic activity of the composites are investigated towards ORR/OER under alkaline condition. The ternary RuO2/Mn2O3/CNF composite showed superior ORR activity in terms of onset potential (0.95 V versus RHE) and Tafel slope (121 mV dec-1) compared to its RuO2/CNF and Mn2O3/CNF counterparts. In the case of OER, the RuO2/Mn2O3/CNF exhibited 0.34 V over-potential value measured at 10 mA cm-2 and 52 mV dec-1 Tafel slope which are lower than those of the other synthesized samples and as compared to state of the art RuO2 and IrO x type materials. RuO2/Mn2O3/CNF also exhibited higher specific capacity (9352 mAh [Formula: see text]) than CNF (1395 mAh [Formula: see text]), Mn2O3/CNF (3108 mAh [Formula: see text]) and RuO2/CNF (4859 mAh g carbon -1) as the cathode material in Na-O2 battery, which indicates the validity of the results in non-aqueous medium. Taking the benefit of RuO2 and Mn2O3 synergistic effect, the decomposition of inevitable side products at the end of charge occurs at 3.838 V versus Na/Na+ by using RuO2/Mn2O3/CNF, which is 388 mV more cathodic compared with CNF.
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Affiliation(s)
- Mohammad Fathi Tovini
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey
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45
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Bhanja P, Mohanty B, Patra AK, Ghosh S, Jena BK, Bhaumik A. IrO
2
and Pt Doped Mesoporous SnO
2
Nanospheres as Efficient Electrocatalysts for the Facile OER and HER. ChemCatChem 2018. [DOI: 10.1002/cctc.201801312] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Piyali Bhanja
- School of Materials ScienceIndian Association for the Cultivation of Science Jadavpur 700 032 India
| | - Bishnupad Mohanty
- Colloids & Material Chemistry DepartmentCSIR-Institute of Minerals and Materials Technology Bhubaneswar 751013 India
| | - Astam K. Patra
- School of Materials ScienceIndian Association for the Cultivation of Science Jadavpur 700 032 India
| | - Soumen Ghosh
- Department of ChemistryJadavpur University Jadavpur Kolkata 700 032 India
| | - Bikash Kumar Jena
- Colloids & Material Chemistry DepartmentCSIR-Institute of Minerals and Materials Technology Bhubaneswar 751013 India
| | - Asim Bhaumik
- School of Materials ScienceIndian Association for the Cultivation of Science Jadavpur 700 032 India
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46
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Indra A, Song T, Paik U. Metal Organic Framework Derived Materials: Progress and Prospects for the Energy Conversion and Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705146. [PMID: 29984451 DOI: 10.1002/adma.201705146] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/30/2017] [Indexed: 06/08/2023]
Abstract
Exploring new materials with high efficiency and durability is the major requirement in the field of sustainable energy conversion and storage systems. Numerous techniques have been developed in last three decades to enhance the efficiency of the catalyst systems, control over the composition, structure, surface area, pore size, and moreover morphology of the particles. In this respect, metal organic framework (MOF) derived catalysts are emerged as the finest materials with tunable properties and activities for the energy conversion and storage. Recently, several nano- or microstructures of metal oxides, chalcogenides, phosphides, nitrides, carbides, alloys, carbon materials, or their hybrids are explored for the electrochemical energy conversion like oxygen evolution, hydrogen evolution, oxygen reduction, or battery materials. Interest on the efficient energy storage system is also growing looking at the practical applications. Though, several reviews are available on the synthesis and application of MOF and MOF derived materials, their applications for the electrochemical energy conversion and storage is totally a new field of research and developed recently. This review focuses on the systematic design of the materials from MOF and control over their inherent properties to enhance the electrochemical performances.
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Affiliation(s)
- Arindam Indra
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
| | - Taeseup Song
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
| | - Ungyu Paik
- Department of Energy Engineering, Hanyang University, Seoul, 133-791, Republic of Korea
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47
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Yoshinaga T, Saruyama M, Xiong A, Ham Y, Kuang Y, Niishiro R, Akiyama S, Sakamoto M, Hisatomi T, Domen K, Teranishi T. Boosting photocatalytic overall water splitting by Co doping into Mn 3O 4 nanoparticles as oxygen evolution cocatalysts. NANOSCALE 2018; 10:10420-10427. [PMID: 29616267 DOI: 10.1039/c8nr00377g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The effect of cobalt doping into a manganese oxide (tetragonal spinel Mn3O4) nanoparticle cocatalyst up to Co/(Co + Mn) = 0.4 (mol/mol) on the activity of photocatalytic water oxidation was studied. Monodisperse ∼10 nm CoyMn1-yO (0 ≤y≤ 0.4) nanoparticles were uniformly loaded onto photocatalysts and converted to CoxMn3-xO4 nanoparticles through calcination. 40 mol% cobalt-doped Mn3O4 nanoparticle-loaded Rh@Cr2O3/SrTiO3 photocatalyst exhibited 1.8 times-higher overall water splitting activity than that with pure Mn3O4 nanoparticles. Investigation on the band structure and electrocatalytic water oxidation activity of CoxMn3-xO4 nanoparticles revealed that the Co doping mainly contributes to the improvement of water oxidation kinetics on the surface of the cocatalyst nanoparticles.
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Affiliation(s)
- Taizo Yoshinaga
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| | - Masaki Saruyama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
| | - Anke Xiong
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yeilin Ham
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yongbo Kuang
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryo Niishiro
- Mitsui Chemicals, Inc., 580-32 Nagaura, Sodegaura 299-0265, Japan and Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 5-1-5 Kashiwanoha, Kashiwa 277-6589, Japan
| | - Seiji Akiyama
- Japan Technological Research Association of Artificial Photosynthetic Chemical Process (ARPChem), 5-1-5 Kashiwanoha, Kashiwa 277-6589, Japan and Mitsubishi Chemical Group Science and Technology Research Center, Inc., 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502, Japan
| | - Masanori Sakamoto
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
| | - Takashi Hisatomi
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazunari Domen
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Toshiharu Teranishi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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48
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Manganese oxide with hollow rambutan-like morphology as highly efficient electrocatalyst for oxygen evolution reaction. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4014-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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49
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Wang Y, Suzuki H, Xie J, Tomita O, Martin DJ, Higashi M, Kong D, Abe R, Tang J. Mimicking Natural Photosynthesis: Solar to Renewable H 2 Fuel Synthesis by Z-Scheme Water Splitting Systems. Chem Rev 2018; 118:5201-5241. [PMID: 29676566 PMCID: PMC5968435 DOI: 10.1021/acs.chemrev.7b00286] [Citation(s) in RCA: 349] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Indexed: 11/29/2022]
Abstract
Visible light-driven water splitting using cheap and robust photocatalysts is one of the most exciting ways to produce clean and renewable energy for future generations. Cutting edge research within the field focuses on so-called "Z-scheme" systems, which are inspired by the photosystem II-photosystem I (PSII/PSI) coupling from natural photosynthesis. A Z-scheme system comprises two photocatalysts and generates two sets of charge carriers, splitting water into its constituent parts, hydrogen and oxygen, at separate locations. This is not only more efficient than using a single photocatalyst, but practically it could also be safer. Researchers within the field are constantly aiming to bring systems toward industrial level efficiencies by maximizing light absorption of the materials, engineering more stable redox couples, and also searching for new hydrogen and oxygen evolution cocatalysts. This review provides an in-depth survey of relevant Z-schemes from past to present, with particular focus on mechanistic breakthroughs, and highlights current state of the art systems which are at the forefront of the field.
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Affiliation(s)
- Yiou Wang
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
| | - Hajime Suzuki
- Graduate
School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Jijia Xie
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
| | - Osamu Tomita
- Graduate
School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - David James Martin
- Van’t
Hoff Institute for Molecular Sciences, University
of Amsterdam, P.O. Box 94720, 1090 GS Amsterdam, The Netherlands
| | - Masanobu Higashi
- Graduate
School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Dan Kong
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
| | - Ryu Abe
- Graduate
School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Junwang Tang
- Department
of Chemical Engineering, University College
London, Torrington Place, London WC1E 7JE, U.K.
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Tong Y, Yu X, Wang H, Yao B, Li C, Shi G. Trace Level Co–N Doped Graphite Foams as High-Performance Self-Standing Electrocatalytic Electrodes for Hydrogen and Oxygen Evolution. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01131] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yue Tong
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Xiaowen Yu
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Haiyan Wang
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Bowen Yao
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chun Li
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Gaoquan Shi
- Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, People’s Republic of China
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