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Wang H, Pei Y, Wang K, Zuo Y, Wei M, Xiong J, Zhang P, Chen Z, Shang N, Zhong D, Pei P. First-Row Transition Metals for Catalyzing Oxygen Redox. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304863. [PMID: 37469215 DOI: 10.1002/smll.202304863] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/09/2023] [Indexed: 07/21/2023]
Abstract
Rechargeable zinc-air batteries are widely recognized as a highly promising technology for energy conversion and storage, offering a cost-effective and viable alternative to commercial lithium-ion batteries due to their unique advantages. However, the practical application and commercialization of zinc-air batteries are hindered by the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Recently, extensive research has focused on the potential of first-row transition metals (Mn, Fe, Co, Ni, and Cu) as promising alternatives to noble metals in bifunctional ORR/OER electrocatalysts, leveraging their high-efficiency electrocatalytic activity and excellent durability. This review provides a comprehensive summary of the recent advancements in the mechanisms of ORR/OER, the performance of bifunctional electrocatalysts, and the preparation strategies employed for electrocatalysts based on first-row transition metals in alkaline media for zinc-air batteries. The paper concludes by proposing several challenges and highlighting emerging research trends for the future development of bifunctional electrocatalysts based on first-row transition metals.
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Affiliation(s)
- Hengwei Wang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yu Pei
- Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Keliang Wang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, China
| | - Yayu Zuo
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Manhui Wei
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Jianyin Xiong
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Pengfei Zhang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Zhuo Chen
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Nuo Shang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Daiyuan Zhong
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Pucheng Pei
- State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, China
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Hajareh Haghighi F, Binaymotlagh R, Chronopoulou L, Cerra S, Marrani AG, Amato F, Palocci C, Fratoddi I. Self-Assembling Peptide-Based Magnetogels for the Removal of Heavy Metals from Water. Gels 2023; 9:621. [PMID: 37623076 PMCID: PMC10454050 DOI: 10.3390/gels9080621] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/26/2023] Open
Abstract
In this study, we present the synthesis of a novel peptide-based magnetogel obtained through the encapsulation of γ-Fe2O3-polyacrylic acid (PAA) nanoparticles (γ-Fe2O3NPs) into a hydrogel matrix, used for enhancing the ability of the hydrogel to remove Cr(III), Co(II), and Ni(II) pollutants from water. Fmoc-Phe (Fluorenylmethoxycarbonyl-Phenylalanine) and diphenylalanine (Phe2) were used as starting reagents for the hydrogelator (Fmoc-Phe3) synthesis via an enzymatic method. The PAA-coated magnetic nanoparticles were synthesized in a separate step, using the co-precipitation method, and encapsulated into the peptide-based hydrogel. The resulting organic/inorganic hybrid system (γ-Fe2O3NPs-peptide) was characterized with different techniques, including FT-IR, Raman, UV-Vis, DLS, ζ-potential, XPS, FESEM-EDS, swelling ability tests, and rheology. Regarding the application in heavy metals removal from aqueous solutions, the behavior of the obtained magnetogel was compared to its precursors and the effect of the magnetic field was assessed. Four different systems were studied for the separation of heavy metal ions from aqueous solutions, including (1) γ-Fe2O3NPs stabilized with PAA, (γ-Fe2O3NPs); (2) Fmoc-Phe3 hydrogel (HG); (3) γ-Fe2O3NPs embedded in peptide magnetogel (γ-Fe2O3NPs@HG); and (4) γ-Fe2O3NPs@HG in the presence of an external magnetic field. To quantify the removal efficiency of these four model systems, the UV-Vis technique was employed as a fast, cheap, and versatile method. The results demonstrate that both Fmoc-Phe3 hydrogel and γ-Fe2O3NPs peptide magnetogel can efficiently remove all the tested pollutants from water. Interestingly, due to the presence of magnetic γ-Fe2O3NPs inside the hydrogel, the removal efficiency can be enhanced by applying an external magnetic field. The proposed magnetogel represents a smart multifunctional nanosystem with improved absorption efficiency and synergic effect upon applying an external magnetic field. These results are promising for potential environmental applications of γ-Fe2O3NPs-peptide magnetogels to the removal of pollutants from aqueous media.
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Affiliation(s)
- Farid Hajareh Haghighi
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
| | - Roya Binaymotlagh
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
| | - Laura Chronopoulou
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
- Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Sara Cerra
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
| | - Andrea Giacomo Marrani
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
| | - Francesco Amato
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
| | - Cleofe Palocci
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
- Research Center for Applied Sciences to the Safeguard of Environment and Cultural Heritage (CIABC), Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Ilaria Fratoddi
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.H.H.); (R.B.); (S.C.); (A.G.M.); (F.A.); (I.F.)
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Lavorato GC, de Almeida AA, Vericat C, Fonticelli MH. Redox phase transformations in magnetite nanoparticles: impact on their composition, structure and biomedical applications. NANOTECHNOLOGY 2023; 34:192001. [PMID: 36825776 DOI: 10.1088/1361-6528/acb943] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Magnetite nanoparticles (NPs) are one of the most investigated nanomaterials so far and modern synthesis methods currently provide an exceptional control of their size, shape, crystallinity and surface functionalization. These advances have enabled their use in different fields ranging from environmental applications to biomedicine. However, several studies have shown that the precise composition and crystal structure of magnetite NPs depend on their redox phase transformations, which have a profound impact on their physicochemical properties and, ultimately, on their technological applications. Although the physical mechanisms behind such chemical transformations in bulk materials have been known for a long time, experiments on NPs with large surface-to-volume ratios have revealed intriguing results. This article is focused on reviewing the current status of the field. Following an introduction on the fundamental properties of magnetite and other related iron oxides (including maghemite and wüstite), some basic concepts on the chemical routes to prepare iron oxide nanomaterials are presented. The key experimental techniques available to study phase transformations in iron oxides, their advantages and drawbacks to the study of nanomaterials are then discussed. The major section of this work is devoted to the topotactic oxidation of magnetite NPs and, in this regard, the cation diffusion model that accounts for the experimental results on the kinetics of the process is critically examined. Since many synthesis routes rely on the formation of monodisperse magnetite NPs via oxidation of wüstite counterparts, the modulation of their physical properties by crystal defects arising from the oxidation process is also described. Finally, the importance of a precise control of the composition and structure of magnetite-based NPs is discussed and its role in their biomedical applications is highlighted.
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Affiliation(s)
- Gabriel C Lavorato
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. C. 16, Suc. 4, 1900 La Plata, Argentina
| | - Adriele A de Almeida
- Instituto de Física 'Gleb Wataghin' (IFGW), Universidade Estadual de Campinas-UNICAMP, R. Sérgio Buarque de Holanda, 777-CEP: 13083-859, Campinas - SP, Brazil
| | - Carolina Vericat
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. C. 16, Suc. 4, 1900 La Plata, Argentina
| | - Mariano H Fonticelli
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. C. 16, Suc. 4, 1900 La Plata, Argentina
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Kim K, Yu J, Noh J, Reimnitz LC, Chang M, Gamelin DR, Korgel BA, Hwang GS, Milliron DJ. Synthetic Control of Intrinsic Defect Formation in Metal Oxide Nanocrystals Using Dissociated Spectator Metal Salts. J Am Chem Soc 2022; 144:22941-22949. [DOI: 10.1021/jacs.2c08716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kihoon Kim
- McKetta Department of Chemical Engineering, University of Texas at Austin, 200 E Dean Keeton Street, Austin, Texas 78712, United States
| | - Jiwon Yu
- McKetta Department of Chemical Engineering, University of Texas at Austin, 200 E Dean Keeton Street, Austin, Texas 78712, United States
| | - Jungchul Noh
- McKetta Department of Chemical Engineering, University of Texas at Austin, 200 E Dean Keeton Street, Austin, Texas 78712, United States
| | - Lauren C. Reimnitz
- McKetta Department of Chemical Engineering, University of Texas at Austin, 200 E Dean Keeton Street, Austin, Texas 78712, United States
| | - Matthew Chang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Daniel R. Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Brian A. Korgel
- McKetta Department of Chemical Engineering, University of Texas at Austin, 200 E Dean Keeton Street, Austin, Texas 78712, United States
- Texas Materials Institute, University of Texas at Austin, 204 E Dean Keeton Street, Austin, Texas 78712, United States
| | - Gyeong S. Hwang
- McKetta Department of Chemical Engineering, University of Texas at Austin, 200 E Dean Keeton Street, Austin, Texas 78712, United States
| | - Delia J. Milliron
- McKetta Department of Chemical Engineering, University of Texas at Austin, 200 E Dean Keeton Street, Austin, Texas 78712, United States
- Department of Chemistry, University of Texas at Austin, 2506 Speedway, Austin, Texas 78712, United States
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