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Wang N, Ma S, Zhang R, Wang L, Wang Y, Yang L, Li J, Guan F, Duan J, Hou B. Regulating N Species in N-Doped Carbon Electro-Catalysts for High-Efficiency Synthesis of Hydrogen Peroxide in Simulated Seawater. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302446. [PMID: 37767950 PMCID: PMC10625060 DOI: 10.1002/advs.202302446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/28/2023] [Indexed: 09/29/2023]
Abstract
Electrochemical oxygen reduction reaction (ORR) is an attractive and alternative route for the on-site production of hydrogen peroxide (H2 O2 ). The electrochemical synthesis of H2 O2 in neutral electrolyte is in early studying stage and promising in ocean-energy application. Herein, N-doped carbon materials (N-Cx ) with different N types are prepared through the pyrolysis of zeolitic imidazolate frameworks. The N-Cx catalysts, especially N-C800 , exhibit an attracting 2e- ORR catalytic activity, corresponding to a high H2 O2 selectivity (≈95%) and preferable stability in 0.5 m NaCl solution. Additionally, the N-C800 possesses an attractive H2 O2 production amount up to 631.2 mmol g-1 h-1 and high Faraday efficiency (79.8%) in H-type cell. The remarkable 2e- ORR electrocatalytic performance of N-Cx catalysts is associated with the N species and N content in the materials. Density functional theory calculations suggest carbon atoms adjacent to graphitic N are the main catalytic sites and exhibit a smaller activation energy, which are more responsible than those in pyridinic N and pyrrolic N doped carbon materials. Furthermore, the N-C800 catalyst demonstrates an effective antibacterial performance for marine bacteria in simulated seawater. This work provides a new insight for electro-generation of H2 O2 in neutral electrolyte and triggers a great promise in ocean-energy application.
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Affiliation(s)
- Nan Wang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Shaobo Ma
- Science Center for Material Creation and Energy ConversionInstitute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao266237China
| | - Ruiyong Zhang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Lifei Wang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Yanan Wang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Lihui Yang
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Jianhua Li
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Fang Guan
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Jizhou Duan
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
| | - Baorong Hou
- CAS Key Laboratory of Marine Environmental Corrosion and Bio‐FoulingInstitute of OceanologyChinese Academy of Sciences7 Nanhai RoadQingdao266071China
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2
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Dias GDS, Costa JM, Almeida Neto AFD. Transition metal chalcogenides carbon-based as bifunctional cathode electrocatalysts for rechargeable zinc-air battery: An updated review. Adv Colloid Interface Sci 2023; 315:102891. [PMID: 37058836 DOI: 10.1016/j.cis.2023.102891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/13/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023]
Abstract
The rechargeable alkaline aqueous zinc-air batteries (ZABs) are prospective candidates to supply the energy demand for their high theoretical energy density, inherent safety, and environmental friendliness. However, their practical application is mainly restricted by the unsatisfactory efficiency of the air electrode, leading to an intense search for high-efficient oxygen electrocatalysts. In recent years, the composites of carbon materials and transition metal chalcogenides (TMC/C) have emerged as promising alternatives because of the unique properties of these single compounds and the synergistic effect between them. In this sense, this review presented the electrochemical properties of these composites and their effects on the ZAB performance. The operational fundamentals of the ZABs were described. After elucidating the role of the carbon matrix in the hybrid material, the latest developments in the ZAB performance of the monometallic structure and spinel of TMC/C were detailed. In addition, we report topics on doping and heterostructure due to the large number of studies involving these specific defects. Finally, a critical conclusion and a brief overview sought to contribute to the advancement of TMC/C in the ZABs.
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Affiliation(s)
- Giancarlo de Souza Dias
- Laboratory of Electrochemical Processes and Anticorrosion, Department of Product and Process Design, School of Chemical Engineering, University of Campinas (UNICAMP), Albert Einstein Av., 500, 13083-852 Campinas, São Paulo, Brazil
| | - Josiel Martins Costa
- School of Food Engineering (FEA), University of Campinas (UNICAMP), Monteiro Lobato St., 80, 13083-862 Campinas, São Paulo, Brazil.
| | - Ambrósio Florêncio de Almeida Neto
- Laboratory of Electrochemical Processes and Anticorrosion, Department of Product and Process Design, School of Chemical Engineering, University of Campinas (UNICAMP), Albert Einstein Av., 500, 13083-852 Campinas, São Paulo, Brazil
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3
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Guo B, Ding Y, Huo H, Wen X, Ren X, Xu P, Li S. Recent Advances of Transition Metal Basic Salts for Electrocatalytic Oxygen Evolution Reaction and Overall Water Electrolysis. NANO-MICRO LETTERS 2023; 15:57. [PMID: 36862225 PMCID: PMC9981861 DOI: 10.1007/s40820-023-01038-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 02/12/2023] [Indexed: 05/19/2023]
Abstract
Electrocatalytic oxygen evolution reaction (OER) has been recognized as the bottleneck of overall water splitting, which is a promising approach for sustainable production of H2. Transition metal (TM) hydroxides are the most conventional and classical non-noble metal-based electrocatalysts for OER, while TM basic salts [M2+(OH)2-x(Am-)x/m, A = CO32-, NO3-, F-, Cl-] consisting of OH- and another anion have drawn extensive research interest due to its higher catalytic activity in the past decade. In this review, we summarize the recent advances of TM basic salts and their application in OER and further overall water splitting. We categorize TM basic salt-based OER pre-catalysts into four types (CO32-, NO3-, F-, Cl-) according to the anion, which is a key factor for their outstanding performance towards OER. We highlight experimental and theoretical methods for understanding the structure evolution during OER and the effect of anion on catalytic performance. To develop bifunctional TM basic salts as catalyst for the practical electrolysis application, we also review the present strategies for enhancing its hydrogen evolution reaction activity and thereby improving its overall water splitting performance. Finally, we conclude this review with a summary and perspective about the remaining challenges and future opportunities of TM basic salts as catalysts for water electrolysis.
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Affiliation(s)
- Bingrong Guo
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Yani Ding
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- Institute of Carbon Neutral Energy Technology, School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Haohao Huo
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Xinxin Wen
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Xiaoqian Ren
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Ping Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China.
| | - Siwei Li
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
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Wang M, Huang X, Yu Z, Zhang P, Zhai C, Song H, Xu J, Chen K. A Stable Rechargeable Aqueous Zn-Air Battery Enabled by Heterogeneous MoS 2 Cathode Catalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4069. [PMID: 36432355 PMCID: PMC9698408 DOI: 10.3390/nano12224069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
Aqueous rechargeable zinc (Zn)−air batteries have recently attracted extensive research interest due to their low cost, environmental benignity, safety, and high energy density. However, the sluggish kinetics of oxygen (O2) evolution reaction (OER) and the oxygen reduction reaction (ORR) of cathode catalysts in the batteries result in the high over-potential that impedes the practical application of Zn−air batteries. Here, we report a stable rechargeable aqueous Zn−air battery by use of a heterogeneous two-dimensional molybdenum sulfide (2D MoS2) cathode catalyst that consists of a heterogeneous interface and defects-embedded active edge sites. Compared to commercial Pt/C-RuO2, the low cost MoS2 cathode catalyst shows decent oxygen evolution and acceptable oxygen reduction catalytic activity. The assembled aqueous Zn−air battery using hybrid MoS2 catalysts demonstrates a specific capacity of 330 mAh g−1 and a durability of 500 cycles (~180 h) at 0.5 mA cm−2. In particular, the hybrid MoS2 catalysts outperform commercial Pt/C in the practically meaningful high-current region (>5 mA cm−2). This work paves the way for research on improving the performance of aqueous Zn−air batteries by constructing their own heterogeneous surfaces or interfaces instead of constructing bifunctional catalysts by compounding other materials.
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Affiliation(s)
- Min Wang
- National Laboratory of Solid State Microstructures, School of Electronics Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Xiaoxiao Huang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Zhiqian Yu
- National Laboratory of Solid State Microstructures, School of Electronics Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Pei Zhang
- College of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Chunyang Zhai
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Hucheng Song
- National Laboratory of Solid State Microstructures, School of Electronics Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Jun Xu
- National Laboratory of Solid State Microstructures, School of Electronics Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Kunji Chen
- National Laboratory of Solid State Microstructures, School of Electronics Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
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Wang M, Long Y, Zhao H, Zhang W, Wang L, Dong R, Hou H, Wang H, Wang X. Dealloying-Derived Porous Spinel Oxide for Bifunctional Oxygen Electrocatalysis and Rechargeable Zinc-Air Batteries: Promotion of Activity Via Hereditary Al-Doping. CHEMSUSCHEM 2022; 15:e202201518. [PMID: 36042569 DOI: 10.1002/cssc.202201518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Indexed: 06/15/2023]
Abstract
The large-scale fabrication of highly efficient and low-cost bifunctional catalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is critical to the development of rechargeable zinc-air batteries (ZABs). Herein, a scalable dealloying strategy was proposed to obtain hierarchically porous spinel-type oxide with minor hereditary Al doping. Benefiting from the well-structured porosity and native dopant, O-np-Ni5 Co10 (Al), namely Al-NiCo2 O4 , exhibited excellent electrocatalytic ORR and OER activities, giving a small potential gap of 0.71 V. The rechargeable ZAB with O-np-Ni5 Co10 (Al) as cathode catalyst delivered a high specific capacity of 757 mAh g-1 , a competitive peak power density of 142 mW cm-2 , and a long-term discharge-charge cycling stability. Furthermore, density functional theory calculations evidenced that appropriate Al doping into NiCo2 O4 could significantly reduce the Gibbs free energy difference to 1.71 eV. This work is expected to inspire the design of performance-oriented bifunctional electrocatalysts for wider applications in renewable energy systems.
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Affiliation(s)
- Mei Wang
- School of Materials Science and Engineering & School of Energy and Power Engineering & School of Science, North University of China, Taiyuan, 030051, P. R. China
| | - Yi Long
- School of Materials Science and Engineering & School of Energy and Power Engineering & School of Science, North University of China, Taiyuan, 030051, P. R. China
| | - Huifang Zhao
- School of Materials Science and Engineering & School of Energy and Power Engineering & School of Science, North University of China, Taiyuan, 030051, P. R. China
| | - Wenjuan Zhang
- Department de Química, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Cerdanyola del Vallès, Spain
| | - Liyong Wang
- School of Materials Science and Engineering & School of Energy and Power Engineering & School of Science, North University of China, Taiyuan, 030051, P. R. China
| | - Ruifeng Dong
- School of Materials Science and Engineering & School of Energy and Power Engineering & School of Science, North University of China, Taiyuan, 030051, P. R. China
| | - Hua Hou
- School of Materials Science and Engineering & School of Energy and Power Engineering & School of Science, North University of China, Taiyuan, 030051, P. R. China
- School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, P. R. China
| | - Huiqi Wang
- School of Materials Science and Engineering & School of Energy and Power Engineering & School of Science, North University of China, Taiyuan, 030051, P. R. China
| | - Xiaoguang Wang
- School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
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6
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Cerium-Doped CoMn2O4 Spinels as Highly Efficient Bifunctional Electrocatalysts for ORR/OER Reactions. Catalysts 2022. [DOI: 10.3390/catal12101122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Low-cost and highly efficient electrocatalysts for oxygen reactions are highly important for oxygen-related energy storage/conversion devices (e.g., solar fuels, fuel cells, and rechargeable metal-air batteries). In this work, a range of compositionally-tuned cerium-doped CoMn2O4 (Ce-CMO-X) spinels were prepared via oxidizing precipitation and subsequent crystallization method and evaluated as electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The Ce modification into the CMO spinels lead to the changes of surface electronic structure. And Ce-CMO-X catalysts display better electrochemical performance than that of pristine CMO spinel. Among them, Ce-CMO-18% shows the best activity. The Ce-CMO-18% processes a higher ratio of Co3+/Co2+, Mn4+/Mn3+, which is beneficial to ORR performance, while the higher content of oxygen vacancies in Ce-CMO-18% make for better OER performance. Thus, the Ce-doped CMO spinels are potential candidates as bifunctional electrocatalysts for both ORR and OER in alkaline environments. Then, the hybrid Ce-CMO-18%/MWCNTs catalyst was also synthesized, which shows further enhanced ORR and OER activities. It displays an ORR onset potential of 0.93 V and potential of 0.84 V at density of 3 mA cm−2 (at 1600 rpm), which is comparable to commercial Pt/C. The OER onset potential and potential at a current density 10 mA cm-2 are 183 mV and 341 mV. The superior electrical conductivity and oxygen functional groups at the surface of MWCNTs can facilitate the interaction between metal oxides and carbon, which promoted the OER and ORR performances significantly.
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7
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Boonlha S, Chakthranont P, Kityakarn S. 3DOM Cerium Doped LaCoO
3
Bifunctional Electrocatalysts for the Oxygen Evolution and Reduction Reactions. ChemCatChem 2021. [DOI: 10.1002/cctc.202101398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sukit Boonlha
- Department of Chemistry Faculty of Science Kasetsart University 10900 Bangkok Thailand
| | - Pongkarn Chakthranont
- National Nanotechnology Center (NANOTEC) National Science and Technology Development Agency (NSTDA) 12120 Pathum Thani Thailand
| | - Sutasinee Kityakarn
- Department of Chemistry Faculty of Science Kasetsart University 10900 Bangkok Thailand
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Zhao L, Lan Z, Mo W, Su J, Liang H, Yao J, Yang W. High-Level Oxygen Reduction Catalysts Derived from the Compounds of High-Specific-Surface-Area Pine Peel Activated Carbon and Phthalocyanine Cobalt. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3429. [PMID: 34947778 PMCID: PMC8707579 DOI: 10.3390/nano11123429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/08/2021] [Accepted: 12/14/2021] [Indexed: 11/16/2022]
Abstract
Non-platinum carbon-based catalysts have attracted much more attention in recent years because of their low cost and outstanding performance, and are regarded as one of the most promising alternatives to precious metal catalysts. Activated carbon (AC), which has a large specific surface area (SSA), can be used as a carrier or carbon source at the same time. In this work, stable pine peel bio-based materials were used to prepare large-surface-area activated carbon and then compound with cobalt phthalocyanine (CoPc) to obtain a high-performance cobalt/nitrogen/carbon (Co-N-C) catalyst. High catalytic activity is related to increasing the number of Co particles on the large-specific-area activated carbon, which are related with the immersing effect of CoPc into the AC and the rational decomposed temperature of the CoPc ring. The synergy with N promoting the exposure of CoNx active sites is also important. The Eonset of the catalyst treated with a composite proportion of AC and CoPc of 1 to 2 at 800 °C (AC@CoPc-800-1-2) is 1.006 V, higher than the Pt/C (20 wt%) catalyst. Apart from this, compared with other AC/CoPc series catalysts and Pt/C (20 wt%) catalyst, the stability of AC/CoPc-800-1-2 is 87.8% in 0.1 M KOH after 20,000 s testing. Considering the performance and price of the catalyst in a practical application, these composite catalysts combining biomass carbon materials with phthalocyanine series could be widely used in the area of catalysts and energy storage.
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Affiliation(s)
- Lei Zhao
- Department of Physical Science and Technology, Lingnan Normal University, Zhanjiang 524048, China; (Z.L.); (W.M.); (J.S.); (H.L.); (J.Y.)
| | - Ziwei Lan
- Department of Physical Science and Technology, Lingnan Normal University, Zhanjiang 524048, China; (Z.L.); (W.M.); (J.S.); (H.L.); (J.Y.)
| | - Wenhao Mo
- Department of Physical Science and Technology, Lingnan Normal University, Zhanjiang 524048, China; (Z.L.); (W.M.); (J.S.); (H.L.); (J.Y.)
| | - Junyu Su
- Department of Physical Science and Technology, Lingnan Normal University, Zhanjiang 524048, China; (Z.L.); (W.M.); (J.S.); (H.L.); (J.Y.)
| | - Huazhu Liang
- Department of Physical Science and Technology, Lingnan Normal University, Zhanjiang 524048, China; (Z.L.); (W.M.); (J.S.); (H.L.); (J.Y.)
| | - Jiayu Yao
- Department of Physical Science and Technology, Lingnan Normal University, Zhanjiang 524048, China; (Z.L.); (W.M.); (J.S.); (H.L.); (J.Y.)
| | - Wenhu Yang
- School of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, China
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Xu X, Yin X, Fu J, Ke D. Structural Modulation on NiCo 2 S 4 Nanoarray by N Doping to Enhance 2e-ORR Selectivity for Photothermal AOPs and Zn-O 2 Batteries*. Chemistry 2021; 27:14451-14460. [PMID: 34346117 DOI: 10.1002/chem.202101786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Indexed: 12/13/2022]
Abstract
As a H2 O2 generator, a 2e- oxygen reduction reaction active electrocatalyst plays an important role in the advanced oxidation process to degrade organic pollutants in sewage. To enhance the tendency of NiCo2 S4 towards the 2e- reduction reaction, N atoms are doped in its structure and replace S2- . The result implies that this weakens the interaction between NiCo2 S4 and OOH*, suppresses O-O bond breaking and enhances H2 O2 selectivity. This electrocatalyst also shows photothermal effect. Under photothermal heating, H2 O2 produced by the oxidation reduction reaction can decompose and releaseOH, which degrades organic pollutants through the advanced oxidation process. Photothermal effect induced by the advance oxidation process shows obvious advantages over the traditional Fenton reaction, such as wide pH adaptation scope and low secondary pollutant due to its Fe2+ free character. With Zn as anode and the electrocatalyst as cathode material, a Zn-O2 battery is assembled. It achieves electricity generation and photothermal effect induced by the advance oxidation process simultaneously.
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Affiliation(s)
- Xinxin Xu
- Department of Chemistry, College of Science, Northeastern University, Shenyang City, Liaoning Province, 110819, China.,Institute for Frontier Technologies of Low-Carbon Steelmaking, Northeastern University, Shenyang, Liaoning, 110819, China)
| | - Xunkai Yin
- Department of Chemistry, College of Science, Northeastern University, Shenyang City, Liaoning Province, 110819, China
| | - Jingnuo Fu
- Department of Chemistry, College of Science, Northeastern University, Shenyang City, Liaoning Province, 110819, China
| | - Di Ke
- Department of Chemistry, College of Science, Northeastern University, Shenyang City, Liaoning Province, 110819, China
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Wang X, Liu Y, Wei T, Sun J, Song X, Chen P, He J, Shen X, Zhu G. A Wet Impregnation Strategy for Advanced FeNi‐Based Electrocatalysts towards Oxygen Evolution. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xueyang Wang
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China
| | - Yuanjun Liu
- School of Environmental and Chemical Engineering Jiangsu University of Science and Technology Zhenjiang 202018 China
| | - Tiange Wei
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China
| | - Jinyong Sun
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China
| | - Xuefeng Song
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China
| | - Peng Chen
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China
| | - Jinghui He
- College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 P. R. China
| | - Xiaoping Shen
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China
| | - Guoxing Zhu
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China
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11
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Rajić V, Stojković Simatović I, Veselinović L, Čavor JB, Novaković M, Popović M, Škapin SD, Mojović M, Stojadinović S, Rac V, Častvan IJ, Marković S. Bifunctional catalytic activity of Zn 1-xFe xO toward the OER/ORR: seeking an optimal stoichiometry. Phys Chem Chem Phys 2020; 22:22078-22095. [PMID: 32985642 DOI: 10.1039/d0cp03377d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1-xFexO, x = 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn2+ partial substitution with Fe3+ on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 V vs. RHE), current density (0.231 mA cm-2 at 0.150 V vs. RHE), and faster kinetics (Tafel slope, b = 248 mV dec-1), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (0001[combining macron]) facets. Quite the contrary, the OER study showed that the introduction of Fe3+ ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm-2 at 2.216 V vs. RHE, an onset potential of 1.856 V vs. RHE, and the smallest potential difference between the OER and ORR (ΔE = 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.
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Affiliation(s)
- Vladimir Rajić
- University of Belgrade, Vinča Institute of Nuclear Sciences, Belgrade, Serbia
| | | | | | | | - Mirjana Novaković
- University of Belgrade, Vinča Institute of Nuclear Sciences, Belgrade, Serbia
| | - Maja Popović
- University of Belgrade, Vinča Institute of Nuclear Sciences, Belgrade, Serbia
| | | | - Miloš Mojović
- University of Belgrade, Faculty of Physical Chemistry, Belgrade, Serbia
| | | | - Vladislav Rac
- University of Belgrade, Faculty of Agriculture, Zemun, Serbia
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12
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Xu Y, Sumboja A, Groves A, Ashton T, Zong Y, Darr JA. Enhancing bifunctional catalytic activity of cobalt–nickel sulfide spinel nanocatalysts through transition metal doping and its application in secondary zinc–air batteries. RSC Adv 2020; 10:41871-41882. [PMID: 35516532 PMCID: PMC9057847 DOI: 10.1039/d0ra08363a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/10/2020] [Indexed: 11/21/2022] Open
Abstract
Transition metal-doped cobalt–nickel sulfide spinel (Ni1.29Co1.49Mn0.22S4) nanocatalysts for secondary Zn–air batteries with an efficient and stable electrochemical performance.
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Affiliation(s)
- Yijie Xu
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
- Institute of Materials Research and Engineering (IMRE)
| | - Afriyanti Sumboja
- Material Science and Engineering Research Group
- Faculty of Mechanical and Aerospace Engineering
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - Alexandra Groves
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
| | - Thomas Ashton
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
| | - Yun Zong
- Institute of Materials Research and Engineering (IMRE)
- A*STAR (Agency for Science, Technology and Research)
- Singapore
| | - Jawwad A. Darr
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
| |
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