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Zhang C, Wang J, Jin J, Wang J, Bai T, Xu J, Wang S, Xu L, Zhang J. Utilization of Cobalt and its Oxide/Hydroxide Mediated by Ionic Liquids/Deep Eutectic Solvents as Catalysts in Water Splitting. ChemistryOpen 2024:e202400136. [PMID: 39212272 DOI: 10.1002/open.202400136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/06/2024] [Indexed: 09/04/2024] Open
Abstract
With the ever-growing global demand for sustainable energy solutions, hydrogen has garnered significant attention as a clean, efficient, and renewable energy source. In the field of hydrogen production, catalyst research stands out as one of the foremost areas of focus. In recent years, the preparation of electrocatalysts using ionic liquids (ILs) and deep eutectic solvents (DESs) has attracted widespread attention. ILs and DESs possess unique physicochemical properties and are recognized as green media as well as functional materials. Cobalt-based catalysts have proven to be efficient electrocatalysts for water splitting. Incorporating ILs or DESs into the preparation of cobalt-based catalysts offers a remarkable advantage by allowing precise control over their structural design and composition. This control directly influences the adsorption properties of the catalyst's surface and the stability of reaction intermediates, thereby enabling enhanced control over reaction pathways and product selectivity. Consequently, the catalytic activity and stability of cobalt-based catalysts can be effectively improved. In the process of preparing cobalt-based catalysts, ILs and DESs can serve as solvents and templates. Owing to the good solubility of ILs and DESs, they can efficiently dissolve raw materials and provide a special nucleation and growth environment, obtaining catalysts with novel-structures. The main focus of this review is to provide a detailed introduction to metal cobalt and its oxide/hydroxide derivatives in the field of water splitting, with a particular emphasis on the research progress achieved through the utilization of IL and DES. The aim is to assist readers in designing and synthesizing novel and high-performance electrochemical catalysts.
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Affiliation(s)
- Chenyun Zhang
- Wuxi Vocational Institute of Arts & Technology, Yixing, Jiangsu, 214200, China
| | - Jie Wang
- Kaishi Faurecia Aftertreatment Control Technologies Co., Ltd, Wuxi, Jiangsu, 214000, China
| | - Jianjiao Jin
- Shazhou Professional Institute of Technology, Zhangjiagang, Jiangsu, 215600, China
| | - Jiahao Wang
- Wuxi Vocational Institute of Arts & Technology, Yixing, Jiangsu, 214200, China
| | - Te Bai
- Wuxi Vocational College of Science and Technology, Wuxi, Jiangsu, 214028, China
| | - Jiacheng Xu
- Wuxi Vocational Institute of Arts & Technology, Yixing, Jiangsu, 214200, China
| | - Shun Wang
- Wuxi Vocational Institute of Arts & Technology, Yixing, Jiangsu, 214200, China
| | - Lihua Xu
- Wuxi Vocational Institute of Arts & Technology, Yixing, Jiangsu, 214200, China
| | - Jing Zhang
- Wuxi Vocational Institute of Arts & Technology, Yixing, Jiangsu, 214200, China
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Farhan A, Qayyum W, Fatima U, Nawaz S, Balčiūnaitė A, Kim TH, Srivastava V, Vakros J, Frontistis Z, Boczkaj G. Powering the Future by Iron Sulfide Type Material (Fe xS y) Based Electrochemical Materials for Water Splitting and Energy Storage Applications: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2402015. [PMID: 38597684 DOI: 10.1002/smll.202402015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Indexed: 04/11/2024]
Abstract
Water electrolysis is among the recent alternatives for generating clean fuels (hydrogen). It is an efficient way to produce pure hydrogen at a rapid pace with no unwanted by-products. Effective and cheap water-splitting electrocatalysts with enhanced activity, specificity, and stability are currently widely studied. In this regard, noble metal-free transition metal-based catalysts are of high interest. Iron sulfide (FeS) is one of the essential electrocatalysts for water splitting because of its unique structural and electrochemical features. This article discusses the significance of FeS and its nanocomposites as efficient electrocatalysts for oxygen evolution reaction (OER), hydrogen evolution reaction (HER), oxygen reduction reaction (ORR), and overall water splitting. FeS and its nanocomposites have been studied also for energy storage in the form of electrode materials in supercapacitors and lithium- (LIBs) and sodium-ion batteries (SIBs). The structural and electrochemical characteristics of FeS and its nanocomposites, as well as the synthesis processes, are discussed in this work. This discussion correlates these features with the requirements for electrocatalysts in overall water splitting and its associated reactions. As a result, this study provides a road map for researchers seeking economically viable, environmentally friendly, and efficient electrochemical materials in the fields of green energy production and storage.
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Affiliation(s)
- Ahmad Farhan
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Wajeeha Qayyum
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Urooj Fatima
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Shahid Nawaz
- Department of Catalysis, Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius, LT-10257, Lithuania
| | - Aldona Balčiūnaitė
- Department of Catalysis, Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius, LT-10257, Lithuania
| | - Tak H Kim
- School of Environment and Science, Griffith University, 170 Kessels Road, Nathan, QLD, 4111, Australia
| | - Varsha Srivastava
- Research Unit of Sustainable Chemistry, Faculty of Technology, University of Oulu, Oulu, FI-90014, Finland
| | - John Vakros
- Department of Chemical Engineering, University of Patras, Caratheodory 1, University Campus, Patras, GR 265 04, Greece
| | - Zacharias Frontistis
- Department of Chemical Engineering, University of Western Macedonia, Kozani, GR-50132, Greece
| | - Grzegorz Boczkaj
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, 11/12 Narutowicza Str., Gdańsk, 80-233, Poland
- EkoTech Center, Gdańsk University of Technology, G. Narutowicza St. 11/12, Gdansk, 80-233, Poland
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Kawashima K, Márquez RA, Smith LA, Vaidyula RR, Carrasco-Jaim OA, Wang Z, Son YJ, Cao CL, Mullins CB. A Review of Transition Metal Boride, Carbide, Pnictide, and Chalcogenide Water Oxidation Electrocatalysts. Chem Rev 2023. [PMID: 37967475 DOI: 10.1021/acs.chemrev.3c00005] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Transition metal borides, carbides, pnictides, and chalcogenides (X-ides) have emerged as a class of materials for the oxygen evolution reaction (OER). Because of their high earth abundance, electrical conductivity, and OER performance, these electrocatalysts have the potential to enable the practical application of green energy conversion and storage. Under OER potentials, X-ide electrocatalysts demonstrate various degrees of oxidation resistance due to their differences in chemical composition, crystal structure, and morphology. Depending on their resistance to oxidation, these catalysts will fall into one of three post-OER electrocatalyst categories: fully oxidized oxide/(oxy)hydroxide material, partially oxidized core@shell structure, and unoxidized material. In the past ten years (from 2013 to 2022), over 890 peer-reviewed research papers have focused on X-ide OER electrocatalysts. Previous review papers have provided limited conclusions and have omitted the significance of "catalytically active sites/species/phases" in X-ide OER electrocatalysts. In this review, a comprehensive summary of (i) experimental parameters (e.g., substrates, electrocatalyst loading amounts, geometric overpotentials, Tafel slopes, etc.) and (ii) electrochemical stability tests and post-analyses in X-ide OER electrocatalyst publications from 2013 to 2022 is provided. Both mono and polyanion X-ides are discussed and classified with respect to their material transformation during the OER. Special analytical techniques employed to study X-ide reconstruction are also evaluated. Additionally, future challenges and questions yet to be answered are provided in each section. This review aims to provide researchers with a toolkit to approach X-ide OER electrocatalyst research and to showcase necessary avenues for future investigation.
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Affiliation(s)
- Kenta Kawashima
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Raúl A Márquez
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Lettie A Smith
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Rinish Reddy Vaidyula
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Omar A Carrasco-Jaim
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Ziqing Wang
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yoon Jun Son
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Chi L Cao
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - C Buddie Mullins
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Center for Electrochemistry, The University of Texas at Austin, Austin, Texas 78712, United States
- H2@UT, The University of Texas at Austin, Austin, Texas 78712, United States
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Thangasamy P, He R, Chen X, Yu K, Randriamahazaka H, Chen Z, Luo H, Zhou XD, Zhou M. Organic-Inorganic Hybrid Crystal-Assisted Etching of Nickel Foam for the Collectively Exhaustive Electrochemical Performance of Oxygen Evolution Reaction. Chemistry 2023; 29:e202301469. [PMID: 37385953 DOI: 10.1002/chem.202301469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/01/2023]
Abstract
In this work, an organic-inorganic hybrid crystal, violet-crystal (VC), was used to etch the nickel foam (NF) to fabricate a self-standing electrode for the water oxidation reaction. The efficacy of VC-assisted etching manifests the promising electrochemical performance towards the oxygen evolution reaction (OER), requiring only ~356 and ~376 mV overpotentials to reach 50 and 100 mA cm-2 , respectively. The OER activity improvement is attributed to the collectively exhaustive effects arising from the incorporation of various elements in the NF, and the enhancement of active site density. Furthermore, the self-standing electrode is robust, exhibiting a stable OER activity after 4,000 cyclic voltammetry cycles, and ~50 h. The anodic transfer coefficients (αa ) show that the first electron transfer step is the rate-determining step on the surface of NF-VCs-1.0 (NF etched by 1 g of VCs) electrode, while the chemical step involving dissociation following the first electron transfer step is identified as the rate-limiting step in other electrodes. The lowest Tafel slope value observed in the NF-VCs-1.0 electrode indicates the high surface coverage of oxygen intermediates and more favorable OER reaction kinetics, as confirmed by high interfacial chemical capacitance and low charge transport/interfacial resistance. This work demonstrates the importance of VCs-assisted etching of NF to activate the OER, and the ability to predict reaction kinetics and rate-limiting step based on αa values, which will open new avenues to identify advanced electrocatalysts for the water oxidation reaction.
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Affiliation(s)
- Pitchai Thangasamy
- Department of Chemical & Materials Engineering, New Mexico State University, Las Cruces, NM-88003, USA
| | - Rong He
- Department of Chemical & Materials Engineering, New Mexico State University, Las Cruces, NM-88003, USA
| | - Xinqi Chen
- Northwestern University Atomic and, Nanoscale Characterization Experimental Center and, Department of Materials Science and Engineering, Northwestern University, Evanston, IL-60208, USA
| | - Kunpeng Yu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA-92093, USA
| | | | - Zheng Chen
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA-92093, USA
| | - Hongmei Luo
- Department of Chemical & Materials Engineering, New Mexico State University, Las Cruces, NM-88003, USA
| | - Xiao-Dong Zhou
- Department of Chemical Engineering, Institute for Materials Research and Innovations, University of Louisiana at Lafayette, Lafayette, LA-70504, USA
| | - Meng Zhou
- Department of Chemical & Materials Engineering, New Mexico State University, Las Cruces, NM-88003, USA
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5
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He M, Long J, Li M, Zheng R, Hu A, Du D, Yan Y, Ran Z, Ren L, Li R, Zhao C, Wen X, Xu H, Shu C. Synergy of cobalt vacancies and iron doping in cobalt selenide to promote oxygen electrode reactions in lithium-oxygen batteries. J Colloid Interface Sci 2022; 612:171-180. [PMID: 34992017 DOI: 10.1016/j.jcis.2021.12.148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 10/19/2022]
Abstract
Electronic structural engineering plays a key role in the design of high-efficiency catalysts. Here, to achieve optimal electronic states, introduction of exotic Fe dopant and Co vacancy into CoSe2 nanosheet (denoted as Fe-CoSe2-VCo) is presented. The obtained Fe-CoSe2-VCo demonstrates excellent catalytic activity as compared to CoSe2. Experimental results and density functional theory (DFT) calculations confirm that Fe dopant and Co defects cause significant electron delocalization, which reduces the adsorption energy of LiO2 intermediate on the catalyst surface, thereby obviously improving the electrocatalytic activity of Fe-CoSe2-VCo towards oxygen redox reactions. Moreover, the synergistic effect between Co vacancy and Fe dopant is able to optimize the microscopic electronic structure of Co ion, further reducing the energy barrier of oxygen electrode reactions on Fe-CoSe2-VCo. And the lithium-oxygen batteries (LOBs) based on Fe-CoSe2-VCo electrodes demonstrate a high Coulombic efficiency (CE) of about 72.66%, a large discharge capacity of about 13723 mA h g-1, and an excellent cycling life of about 1338 h. In general, the electronic structure modulation strategy with the reasonable introduction of vacancy and dopant is expected to inspire the design of highly efficient catalysts for various electrochemical systems.
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Affiliation(s)
- Miao He
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Jianping Long
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China.
| | - Minglu Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Ruixin Zheng
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Anjun Hu
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Dayue Du
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Yu Yan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Zhiqun Ran
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Longfei Ren
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Runjing Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Chuan Zhao
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Xiaojuan Wen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Haoyang Xu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Chaozhu Shu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China.
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Sobhani A, Salavati-Niasari M. Transition metal selenides and diselenides: Hydrothermal fabrication, investigation of morphology, particle size and and their applications in photocatalyst. Adv Colloid Interface Sci 2021; 287:102321. [PMID: 33246142 DOI: 10.1016/j.cis.2020.102321] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 11/11/2020] [Accepted: 11/15/2020] [Indexed: 01/02/2023]
Abstract
This review investigates hydrothermal synthesis of metal selenides and diselenides. Briefly, structures, applications and formation mechanisms are studied. The strategies for developing metal selenides, including NiSe, NiSe2, Ni3Se2, CdSe, FeSe2, MnSe2, CoSe, CuSe, Cu1.8Se, CuSe2, Cu3Se2 and ZnSe are discussed. More of 50 hydrothermal methods used for the synthesis of metal selenides are discussed. As well as the investigation of the photocatalytic activities of these metal selenides are followed by different synthesis methods and strategies employed for the synthesis of them.
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Affiliation(s)
- Azam Sobhani
- Department of Chemistry, Kosar University of Bojnord, Bojnord, Islamic Republic of Iran.
| | - Masoud Salavati-Niasari
- Institute of Nano Science and Nano Technology, University of Kashan, P.O. Box. 87317-51167, Kashan, Islamic Republic of Iran.
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Kannimuthu K, Sangeetha K, Sam Sankar S, Karmakar A, Madhu R, Kundu S. Investigation on nanostructured Cu-based electrocatalysts for improvising water splitting: a review. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01060j] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review, various forms of Cu based nanostructures have been explored in terms of improvise and enhancing their activity and durability with vast investigation for OER, HER and TWS applications.
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Affiliation(s)
- Karthick Kannimuthu
- Electrochemical Process Engineering (EPE) division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Kumaravel Sangeetha
- Electrochemical Process Engineering (EPE) division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Selvasundarasekar Sam Sankar
- Electrochemical Process Engineering (EPE) division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Arun Karmakar
- Electrochemical Process Engineering (EPE) division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Ragunath Madhu
- Electrochemical Process Engineering (EPE) division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630003
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Subrata Kundu
- Electrochemical Process Engineering (EPE) division
- CSIR-Central Electrochemical Research Institute (CECRI)
- Karaikudi-630003
- India
- Academy of Scientific and Innovative Research (AcSIR)
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Ghosh S, Tudu G, Mondal A, Ganguli S, Inta HR, Mahalingam V. Inception of Co3O4 as Microstructural Support to Promote Alkaline Oxygen Evolution Reaction for Co0.85Se/Co9Se8 Network. Inorg Chem 2020; 59:17326-17339. [PMID: 33213153 DOI: 10.1021/acs.inorgchem.0c02618] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Sourav Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Gouri Tudu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Ayan Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Sagar Ganguli
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Harish Reddy Inta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Venkataramanan Mahalingam
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
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Zhu L, Liao Y, Jia Y, Zhang X, Ma R, Wang K. Solid-solution hexagonal Ni 0.5Co 0.5Se nanoflakes toward boosted oxygen evolution reaction. Chem Commun (Camb) 2020; 56:13113-13116. [PMID: 32996971 DOI: 10.1039/d0cc05247g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxygen evolution reaction (OER) with sluggish kinetics is a bottleneck for the large-scale application of water electrolysis. Herein, solid-solution hexagonal Ni0.5Co0.5Se nanoflakes are designed and successfully synthesized via a facile hydrothermal method with a much lower overpotential of 216 mV at 10 mA cm-2 and a Tafel slope of 37.08 mV dec-1.
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Affiliation(s)
- Lei Zhu
- Institute of Materials for Energy and Environment, Laboratory of New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
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10
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Wang T, Liu M. Rational phase transformation and morphology design to optimize oxygen evolution property of cobalt tungstate. NANOTECHNOLOGY 2020; 31:145603. [PMID: 31887727 DOI: 10.1088/1361-6528/ab662d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work, a facile and feasible soft template method with the aid of buffer solution is successfully applied to synthesize high-order mesoporous cobalt tungstate for the first time. Attributing to the regulation of reaction solution's pH value and the existence of template, the phenomenon of phase transformation occurs, and high-order mesoporous structure is formed. Because of the variation of phase and morphology, only 448 mV can deliver a current density of 10 mA cm-2 with a small Tafel slope (61 mV dec-1) for mesoporous cobalt tungsten oxide hydroxide, while the cobalt tungstate nanoparticles cannot satisfy the basic demand of electrocatalysts. Herein, rational phase transformation and morphology design can significantly affect the property of oxygen evolution, which can provide vast opportunities to turn into candidates for the novel oxygen evolution catalyst.
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Affiliation(s)
- Tianlei Wang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, People's Republic of China
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11
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Sankar SS, Karthick K, Sangeetha K, Kundu S. In Situ Modified Nitrogen-Enriched ZIF-67 Incorporated ZIF-7 Nanofiber: An Unusual Electrocatalyst for Water Oxidation. Inorg Chem 2019; 58:13826-13835. [DOI: 10.1021/acs.inorgchem.9b01621] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Selvasundarasekar Sam Sankar
- Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research, Central Electrochemical Research Institute (CSIR-CECRI), New Delhi 110001, India
- CSIR-CECRI, Karaikudi, 630003, Tamil Nadu, India
| | - Kannimuthu Karthick
- Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research, Central Electrochemical Research Institute (CSIR-CECRI), New Delhi 110001, India
- CSIR-CECRI, Karaikudi, 630003, Tamil Nadu, India
| | - Kumaravel Sangeetha
- Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research, Central Electrochemical Research Institute (CSIR-CECRI), New Delhi 110001, India
- CSIR-CECRI, Karaikudi, 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research, Central Electrochemical Research Institute (CSIR-CECRI), New Delhi 110001, India
- CSIR-CECRI, Karaikudi, 630003, Tamil Nadu, India
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12
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Karthick K, Jagadeesan SN, Kumar P, Patchaiammal S, Kundu S. Evaluating DNA Derived and Hydrothermally Aided Cobalt Selenide Catalysts for Electrocatalytic Water Oxidation. Inorg Chem 2019; 58:6877-6884. [PMID: 31070905 DOI: 10.1021/acs.inorgchem.9b00354] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrocatalysts with engaging oxygen evolution reaction (OER) activity with lesser overpotentials are highly desired to have increased cell efficiency. In this work, cobalt selenide catalysts were prepared utilizing both wet-chemical route (CoSe and CoSe-DNA) and hydrothermal route (Co0.85Se-hyd). In wet-chemical route, cobalt selenide is prepared with DNA (CoSe-DNA) and without DNA (CoSe). The morphological results in the wet-chemical route had given a clear picture that, with the assistance of DNA, cobalt selenide had formed as nanochains with particle size below 5 nm, while it agglomerated in the absence of DNA. The morphology was nano networks in the hydrothermally assisted synthesis. These catalysts were analyzed for OER activity in 1 M KOH. The overpotentials required at a current density of 10 mA cm-2 were 352, 382, and 383 mV for Co0.85Se-hyd, CoSe, and CoSe-DNA catalysts, respectively. The Tafel slope value was lowest for Co0.85Se-hyd (65 mV/dec) compared to CoSe-DNA (71 mV/dec) and CoSe (80 mV/dec). The chronoamperometry test was studied for 24 h at a potential of 394 mV for Co0.85Se-hyd and was found to be stable with a smaller decrease in activity. From the OER study, it is clear that Co0.85Se was found to be superior to others. This kind of related study can be useful to design the catalyst with increased efficiency by varying the method of preparation.
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Affiliation(s)
- Kannimuthu Karthick
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-Central Electrochemical Research Institute (CSIR-CECRI) Campus , New Delhi , India.,CSIR-Central Electrochemical Research Institute (CECRI) , Karaikudi - 630003 , Tamil Nadu , India
| | - Sathya Narayanan Jagadeesan
- Centre for Education (CFE) , CSIR-Central Electrochemical Research Institute (CECRI) , Karaikudi - 630003 , Tamil Nadu , India
| | - Piyush Kumar
- Centre for Education (CFE) , CSIR-Central Electrochemical Research Institute (CECRI) , Karaikudi - 630003 , Tamil Nadu , India
| | - Swathi Patchaiammal
- Centre for Education (CFE) , CSIR-Central Electrochemical Research Institute (CECRI) , Karaikudi - 630003 , Tamil Nadu , India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR) , CSIR-Central Electrochemical Research Institute (CSIR-CECRI) Campus , New Delhi , India.,CSIR-Central Electrochemical Research Institute (CECRI) , Karaikudi - 630003 , Tamil Nadu , India
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One Pot Synthesis of FeCo/N‐Doped 3D Porous Carbon Nanosheets as Bifunctional Electrocatalyst for the Oxygen Reduction and Evolution Reactions. ChemElectroChem 2019. [DOI: 10.1002/celc.201900016] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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