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Men X, Deng T, Li X, Huang L, Wang J. Electrospun carbon nanofibers loaded with sulfur vacancy CoS 2 as separator coating to accelerate sulfur conversion in Lithium-Sulfur batteries. J Colloid Interface Sci 2024; 678:345-354. [PMID: 39208762 DOI: 10.1016/j.jcis.2024.08.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/10/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
Lithium-sulfur batteries (LSBs) have been sought after by researchers owing to their high energy density; however, the inevitable capacity decay and slow reaction kinetics have hindered their advancement. Here, we prepare a Prussian blue analog, Co3[Co(CN)6]2 and synthesize carbon nanofibers/S vacancy CoS2-x (CNFs/CoS2-x) as electrocatalysts for separator coating via electrospinning, carbonization, sulfurization, and hydrogen reduction. CNFs/CoS2-x exhibits excellent electrocatalytic activity, wherein S vacancies induce the partial oxidation of Co2+ to Co3+ in CoS2 and CNFs provide long-range electron transport pathways. Various electrochemical tests, such as Tafel, ion diffusion coefficient, Li2S precipitation, and Li2S6 symmetric cells, further confirm the enhanced electrocatalytic activity. The LSBs with CNFs/CoS2-x modified separator delivers an initial discharge capacity of 1056.7 mAh g-1 at 0.2C, maintaining 840.8 mAh g-1 after 100 cycles at 0.2C. When S loading is increased to 4.42 mg cm-2, the battery retains a discharge capacity of 687.9 mAh g-1 (3.04 mAh cm-2) after 70 cycles at 0.1C. Our work can provide a reference for synthesizing anion-vacancy materials and designing anion-vacancy electrocatalytic composites for LSBs.
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Affiliation(s)
- Xinliang Men
- School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710311, China
| | - Teng Deng
- School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710311, China
| | - Xin Li
- School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710311, China
| | - Lin Huang
- School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710311, China
| | - Juan Wang
- School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710311, China.
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2
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Kim H, Min K, Song G, Kim J, Ham HC, Baeck SH. Hollow-structured cobalt sulfide electrocatalyst for alkaline oxygen evolution reaction: Rational tuning of electronic structure using iron and fluorine dual-doping strategy. J Colloid Interface Sci 2024; 665:922-933. [PMID: 38569309 DOI: 10.1016/j.jcis.2024.03.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
Utilizing renewable electricity for water electrolysis offers a promising way for generating high-purity hydrogen gases while mitigating the emission of environmental pollutants. To realize the water electrolysis, it is necessary to develop highly active and precious metal-free electrocatalyst for oxygen evolution reaction (OER) which incurs significant overpotential due to its complicated four-electron transfer mechanism. Hence, we propose a facile preparation method for hollow-structured Fe and F dual-doped CoS2 nanosphere (Fe-CoS2-F) as an efficient OER electrocatalyst. The uniform hollow and porous structure of Fe-CoS2-F enlarge the specific surface area and increase the number of exposed active sites. Furthermore, the Fe and F dual-dopants synergistically contributed to the adjustment of electronic structure, thereby promoting the adsorption/desorption of oxygen-containing reaction intermediates on active sites during the alkaline OER procedure. As a result, the prepared Fe-CoS2-F exhibits outstanding OER activity, characterized by a low overpotential of 298 mV to achieve a current density of 10 mA cm-2 and a Tafel slope as small as 46.0 mV dec-1. Based on computational theoretical calculations, the introduction of the dual-dopants into CoS2 structure reduce the excessively strong adsorption energy of reaction intermediate in the rate determining step, leading to effectively promoted electrocatalytic cycle for OER in alkaline environment. This study presents an effective strategy for preparing noble metal-free OER electrocatalysts with promising potential for large-scale industrial water electrolysis.
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Affiliation(s)
- Hyejin Kim
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Kyeongseok Min
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Giseong Song
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Junseong Kim
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Hyung Chul Ham
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea
| | - Sung-Hyeon Baeck
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy Materials and Process, Inha University, Incheon 22212, Republic of Korea.
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3
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Kaid MM, Shehab MK, Fang H, Ahmed AI, El-Hakam SA, Ibrahim AA, Jena P, El-Kaderi HM. Selective Reduction of Multivariate Metal-Organic Frameworks for Advanced Electrocatalytic Cathodes in High Areal Capacity and Long-Life Lithium-Sulfur Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2283-2295. [PMID: 38166008 DOI: 10.1021/acsami.3c15480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Lithium-sulfur batteries hold great promise as next-generation high-energy-density batteries. However, their performance has been limited by the low cycling stability and sulfur utilization. Herein, we demonstrate that a selective reduction of the multivariate metal-organic framework, MTV-MOF-74 (Co, Ni, Fe), transforms the framework into a porous carbon decorated with bimetallic CoNi alloy and Fe3O4 nanoparticles capable of entrapping soluble lithium polysulfides while synergistically facilitating their rapid conversion into Li2S. Electrochemical studies on coin cells containing 89 wt % sulfur loading revealed a reversible capacity of 1439.8 mA h g-1 at 0.05 C and prolonged cycling stability for 1000 cycles at 1 C/1060.2 mA h g-1 with a decay rate of 0.018% per cycle. At a high areal sulfur loading of 6.9 mg cm-2 and lean electrolyte/sulfur ratio (4.5 μL:1.0 mg), the battery based on the 89S@CoNiFe3O4/PC cathode provides a high areal capacity of 6.7 mA h cm-2. The battery exhibits an outstanding power density of 849 W kg-1 at 5 C and delivers a specific energy of 216 W h kg-1 at 2 C, corresponding to a specific power of 433 W kg-1. Density functional theory shows that the observed results are due to the strong interaction between the CoNi alloy and Fe3O4, facilitated by charge transfer between the polysulfides and the substrate.
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Affiliation(s)
- Mahmoud M Kaid
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Mohammad K Shehab
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Hong Fang
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
- Department of Physics, Rutgers University, Camden, New Jersey 08102, United States
| | - Awad I Ahmed
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Sohier A El-Hakam
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Amr Awad Ibrahim
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Puru Jena
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Hani M El-Kaderi
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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4
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De Villenoisy T, Zheng X, Wong V, Mofarah SS, Arandiyan H, Yamauchi Y, Koshy P, Sorrell CC. Principles of Design and Synthesis of Metal Derivatives from MOFs. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210166. [PMID: 36625270 DOI: 10.1002/adma.202210166] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/15/2022] [Indexed: 06/16/2023]
Abstract
Materials derived from metal-organic frameworks (MOFs) have demonstrated exceptional structural variety and complexity and can be synthesized using low-cost scalable methods. Although the inherent instability and low electrical conductivity of MOFs are largely responsible for their low uptake for catalysis and energy storage, a superior alternative is MOF-derived metal-based derivatives (MDs) as these can retain the complex nanostructures of MOFs while exhibiting stability and electrical conductivities of several orders of magnitude higher. The present work comprehensively reviews MDs in terms of synthesis and their nanostructural design, including oxides, sulfides, phosphides, nitrides, carbides, transition metals, and other minor species. The focal point of the approach is the identification and rationalization of the design parameters that lead to the generation of optimal compositions, structures, nanostructures, and resultant performance parameters. The aim of this approach is to provide an inclusive platform for the strategies to design and process these materials for specific applications. This work is complemented by detailed figures that both summarize the design and processing approaches that have been reported and indicate potential trajectories for development. The work is also supported by comprehensive and up-to-date tabular coverage of the reported studies.
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Affiliation(s)
| | - Xiaoran Zheng
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Vienna Wong
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Sajjad S Mofarah
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Hamidreza Arandiyan
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), RMIT University, Melbourne, VIC, 3000, Australia
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW, 2006, Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Pramod Koshy
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Charles C Sorrell
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
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5
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Ghosh D, Pradhan D. Effect of Cooperative Redox Property and Oxygen Vacancies on Bifunctional OER and HER Activities of Solvothermally Synthesized CeO 2/CuO Composites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3358-3370. [PMID: 36847346 DOI: 10.1021/acs.langmuir.2c03242] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Herein, we report the synthesis of the CeO2/CuO composite as a bifunctional oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) electrocatalyst in a basic medium. The electrocatalyst with an optimum 1:1 CeO2/CuO shows low OER and HER overpotentials of 410 and 245 mV, respectively. The Tafel slopes of 60.2 and 108.4 mV/dec are measured for OER and HER, respectively. More importantly, the 1:1 CeO2/CuO composite electrocatalyst requires only a 1.61 V cell voltage to split water to achieve 10 mA/cm2 in a two-electrode cell. The role of oxygen vacancies and the cooperative redox activity at the interface of the CeO2 and CuO phases is explained in the light of Raman and XPS studies, which play the determining factor for the enhanced bifunctional activity of the 1:1 CeO2/CuO composite. This work provides guidance for the optimization and design of a low-cost alternative electrocatalyst to replace the expensive noble-metal-based electrocatalyst for overall water splitting.
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Affiliation(s)
- Debanjali Ghosh
- Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Debabrata Pradhan
- Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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6
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Su H, Jiang J, Song S, An B, Li N, Gao Y, Ge L. Recent progress on design and applications of transition metal chalcogenide-associated electrocatalysts for the overall water splitting. CHINESE JOURNAL OF CATALYSIS 2023. [DOI: 10.1016/s1872-2067(22)64149-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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7
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Ramachandran R, Chen TW, Veerakumar P, Anushya G, Chen SM, Kannan R, Mariyappan V, Chitra S, Ponmurugaraj N, Boominathan M. Recent development and challenges in fuel cells and water electrolyzer reactions: an overview. RSC Adv 2022; 12:28227-28244. [PMID: 36320254 PMCID: PMC9531000 DOI: 10.1039/d2ra04853a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/01/2022] [Indexed: 11/07/2022] Open
Abstract
Water electrolysis is the most promising method for the production of large scalable hydrogen (H2), which can fulfill the global energy demand of modern society. H2-based fuel cell transportation has been operating with zero greenhouse emission to improve both indoor and outdoor air quality, in addition to the development of economically viable sustainable green energy for widespread electrochemical applications. Many countries have been eagerly focusing on the development of renewable as well as H2-based energy storage infrastructure to fulfill their growing energy demands and sustainable goals. This review article mainly discusses the development of different kinds of fuel cell electrocatalysts, and their application in H2 production through various processes (chemical, refining, and electrochemical). The fuel cell parameters such as redox properties, cost-effectiveness, ecofriendlyness, conductivity, and better electrode stability have also been highlighted. In particular, a detailed discussion has been carried out with sufficient insights into the sustainable development of future green energy economy.
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Affiliation(s)
- Rasu Ramachandran
- Department of Chemistry, The Madura College (Madurai Kamaraj University) Vidhya Nagar, T.P.K. Road Madurai 625011 India
| | - Tse-Wei Chen
- Department of Materials, Imperial College London London SW7 2AZ UK
| | | | - Ganesan Anushya
- Department of Physics, St. Joseph College of Engineering Sriperumbudur Chennai 602117 India
| | - Shen-Ming Chen
- Electroanalysis and Bio-electrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology Taipei 106 Taiwan
| | - Ramanjam Kannan
- Department of Chemistry, Sri KumaraguruparaSwamigal Arts College Srivaikuntam Thoothukudi-628619 India
| | - Vinitha Mariyappan
- Electroanalysis and Bio-electrochemistry Laboratory, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology Taipei 106 Taiwan
| | - Selvam Chitra
- Department of Chemistry, Alagappa Government Arts College Karaikudi 630003 India
| | | | - Muthusamy Boominathan
- Department of Chemistry, The Madura College (Madurai Kamaraj University) Vidhya Nagar, T.P.K. Road Madurai 625011 India
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8
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Metal-organic framework assisted vanadium oxide nanorods as efficient electrode materials for water oxidation. J Colloid Interface Sci 2022; 618:475-482. [PMID: 35366475 DOI: 10.1016/j.jcis.2022.03.104] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 12/13/2022]
Abstract
The water oxidation process, which comprises the oxygen evolution reaction (OER), is a critical catalytic mechanism for sustainable technologies like water electrolysis and fuel cells. Herein, we develop a unique metal-organic framework aided vanadium pentoxide nanorods (MOF-V2O5 NRs-500) that can be used as an OER electrocatalyst under alkaline solutions. The crystal structure, surface chemical state, and porosity of MOF-V2O5 NRs-500 can be altered by annealing in an oxygen atmosphere. The resultant MOF-V2O5 NRs-500 demonstrate high catalytic activity against OER in basic conditions, with a low overpotential of 300 mV at a derived current density of 50 mA cm-2, and extraordinary durability of more than 50 h. Superior electrochemical performance might be attributed to the high exposure level of active sites emanating from porous MOF-V2O5 NRs-500. Furthermore, the porous MOF-V2O5 NRs-500 skeleton may provide homogenous mass transport channels as well as quick electron transfer.
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9
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Jiang E, Song N, Hong S, Xiao M, Zhu D, Yan Z, Sun J, Chen G, Li C, Dong H. Cobalt supported on biomass carbon tubes derived from cotton fibers towards high-efficient electrocatalytic overall water-splitting. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Synthesis of Al doped CoP2/rGO composite and its high electrocatalytic activity for hydrogen evolution reaction. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Advances in metal–organic frameworks and their derivatives for diverse electrocatalytic applications. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107024] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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12
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Shi Z, Qi X, Zhang Z, Song Y, Zhang J, Guo C, Xu W, Liu K, Zhu Z. Interface engineering of cobalt-sulfide-selenium core-shell nanostructures as bifunctional electrocatalysts toward overall water splitting. NANOSCALE 2021; 13:6890-6901. [PMID: 33885490 DOI: 10.1039/d1nr00987g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The number of active sites and stability of the structure of electrocatalysts are the key factors in the process of overall water splitting. In this paper, cobalt-sulfide-selenium (Se:CoS2-x) core-shell nanostructures are prepared by a simple two-step method, including hydrothermal reaction and chemical vapor deposition. The resulting product exhibits excellent electrochemical performance, owing to the synergistic effects between CoS2 and CoSe1-x, as well as the plentiful active sites in the electrode structure. The Se:CoS2-x material shows a more improved hydrogen evolution reaction activity compared to CoS2 and Co(OH)Cl precursor catalysts, with a low overpotential of only 240 mV achieved at 10 mA cm-2. Meanwhile, Se:CoS2-x as a bifunctional water splitting catalyst also shows remarkably improved oxygen evolution reaction activity, with a low overpotential of only 1.32 V at 10 mA cm-2. The above results show that selenide/sulfide materials provide a new research direction for discovering high-performance and cheap electrode materials.
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Affiliation(s)
- Zhengtian Shi
- College of Advanced Interdisciplinary Studies & Hunan Provincial Key Laboratory of Novel Nano-Optoelectronic Information Materials and Devices, National University of Defense Technology, Changsha, 410073, China.
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Zhang B, Zheng Y, Ma T, Yang C, Peng Y, Zhou Z, Zhou M, Li S, Wang Y, Cheng C. Designing MOF Nanoarchitectures for Electrochemical Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006042. [PMID: 33749910 DOI: 10.1002/adma.202006042] [Citation(s) in RCA: 139] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/18/2020] [Indexed: 02/05/2023]
Abstract
Electrochemical water splitting has attracted significant attention as a key pathway for the development of renewable energy systems. Fabricating efficient electrocatalysts for these processes is intensely desired to reduce their overpotentials and facilitate practical applications. Recently, metal-organic framework (MOF) nanoarchitectures featuring ultrahigh surface areas, tunable nanostructures, and excellent porosities have emerged as promising materials for the development of highly active catalysts for electrochemical water splitting. Herein, the most pivotal advances in recent research on engineering MOF nanoarchitectures for efficient electrochemical water splitting are presented. First, the design of catalytic centers for MOF-based/derived electrocatalysts is summarized and compared from the aspects of chemical composition optimization and structural functionalization at the atomic and molecular levels. Subsequently, the fast-growing breakthroughs in catalytic activities, identification of highly active sites, and fundamental mechanisms are thoroughly discussed. Finally, a comprehensive commentary on the current primary challenges and future perspectives in water splitting and its commercialization for hydrogen production is provided. Hereby, new insights into the synthetic principles and electrocatalysis for designing MOF nanoarchitectures for the practical utilization of water splitting are offered, thus further promoting their future prosperity for a wide range of applications.
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Affiliation(s)
- Ben Zhang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
| | - Yijuan Zheng
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
| | - Tian Ma
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
- West China School of Medicine/West China Hospital Sichuan University Chengdu 610041 China
| | - Chengdong Yang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
| | - Yifei Peng
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
| | - Zhihao Zhou
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
| | - Mi Zhou
- College of Biomass Science and Engineering Sichuan University Chengdu 610065 China
| | - Shuang Li
- Functional Materials Department of Chemistry Technische Universität Berlin Hardenbergstraße 40 10623 Berlin Germany
| | - Yinghan Wang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
| | - Chong Cheng
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
- Department of Chemistry and Biochemistry Freie Universität Berlin Takustraße 3 14195 Berlin Germany
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14
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Ahn IK, Lee SY, Kim HG, Lee GB, Lee JH, Kim M, Joo YC. Electrochemical oxidation of boron-doped nickel-iron layered double hydroxide for facile charge transfer in oxygen evolution electrocatalysts. RSC Adv 2021; 11:8198-8206. [PMID: 35423321 PMCID: PMC8695062 DOI: 10.1039/d0ra10169a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/12/2021] [Indexed: 01/09/2023] Open
Abstract
The oxygen evolution reaction (OER) is the key reaction in water splitting systems, but compared with the hydrogen evolution reaction (HER), the OER exhibits slow reaction kinetics. In this work, boron doping into nickel-iron layered double hydroxide (NiFe LDH) was evaluated for the enhancement of OER electrocatalytic activity. To fabricate boron-doped NiFe LDH (B:NiFe LDH), gaseous boronization, a gas-solid reaction between boron gas and NiFe LDH, was conducted at a relatively low temperature. Subsequently, catalyst activation was performed through electrochemical oxidation for maximization of boron doping and improved OER performance. As a result, it was possible to obtain a remarkably reduced overpotential of 229 mV at 10 mA cm-2 compared to that of pristine NiFe LDH (315 mV) due to the effect of facile charge-transfer resistance by boron doping and improved active sites by electrochemical oxidation.
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Affiliation(s)
- In-Kyoung Ahn
- Department of Materials Science & Engineering, Seoul National University Seoul 08826 Republic of Korea
| | - So-Yeon Lee
- Department of Materials Science & Engineering, Seoul National University Seoul 08826 Republic of Korea
| | - Hyoung Gyun Kim
- Department of Materials Science & Engineering, Seoul National University Seoul 08826 Republic of Korea
| | - Gi-Baek Lee
- Department of Materials Science & Engineering, Seoul National University Seoul 08826 Republic of Korea
| | - Ji-Hoon Lee
- Materials Center for Energy Convergence, Surface Technology Division, Korea Institute of Materials Science (KIMS) Changwon Gyeongnam 51508 Republic of Korea
| | - Miyoung Kim
- Department of Materials Science & Engineering, Seoul National University Seoul 08826 Republic of Korea
| | - Young-Chang Joo
- Department of Materials Science & Engineering, Seoul National University Seoul 08826 Republic of Korea
- Research Institute of Advanced Materials (RIAM), Seoul National University Seoul 08826 Republic of Korea
- Advanced Institute of Convergence Technology 145 Gwanggyo-ro, Yeongtong-gu Suwon 16229 Republic of Korea
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15
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Zhao D, Lu Y, Ma D. Effects of Structure and Constituent of Prussian Blue Analogs on Their Application in Oxygen Evolution Reaction. Molecules 2020; 25:E2304. [PMID: 32422929 PMCID: PMC7288040 DOI: 10.3390/molecules25102304] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/07/2020] [Accepted: 05/11/2020] [Indexed: 11/16/2022] Open
Abstract
The importance of advanced energy-conversion devices such as water electrolysis has manifested dramatically over the past few decades because it is the current mainstay for the generation of green energy. Anodic oxygen evolution reaction (OER) in water splitting is one of the biggest obstacles because of its extremely high kinetic barrier. Conventional OER catalysts are mainly noble-metal oxides represented by IrO2 and RuO2, but these compounds tend to have poor sustainability. The attention on Prussian blue (PB) and its analogs (PBA) in the field of energy conversion systems was concentrated on their open-framework structure, as well as its varied composition comprised of Earth-abundant elements. The unique electronic structure of PBA enables its promising catalytic potential, and it can also be converted into many other talented compounds or structures as a precursor. This undoubtedly provides a new approach for the design of green OER catalysts. This article reviews the recent progress of the application of PBA and its derivatives in OER based on in-depth studies of characterization techniques. The structural design, synthetic strategy, and enhanced electrochemical properties are summarized to provide an outlook for its application in the field of OER. Moreover, due to the similarity of the reaction process of photo-driven electrolysis of water and the former one, the application of PBA in photoelectrolysis is also discussed.
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Affiliation(s)
- Dongni Zhao
- School of Science, Beijing Technology and Business University, Beijing 100048, China;
| | - Yuezhen Lu
- Department of Engineering, Lancaster University, Lancaster LA1 4YR, UK;
| | - Dongge Ma
- School of Science, Beijing Technology and Business University, Beijing 100048, China;
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