1
|
Thangasamy P, Vo TG, Venkatramanan R, Ng YT, Gao J, Liu Y. Bimetallic Ni-Co-MOF Nanostructures for Seawater Electrolysis: Unveiling the Mechanism of the Oxygen Evolution Reaction Using Impedance Spectroscopy. Inorg Chem 2025; 64:5586-5597. [PMID: 40068164 DOI: 10.1021/acs.inorgchem.5c00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2025]
Abstract
Designing anode electrodes with long-term stability and efficiency for seawater electrolysis is crucial for addressing key challenges in sustainable hydrogen production and clean energy systems. Here, we developed self-supporting bimetallic Ni-Co-MOF electrodes, demonstrating exceptional performance and durability in alkaline seawater electrolysis due to their high voltammetric charge density and increased electrochemically accessible active sites. The reaction kinetics of the water oxidation reaction in the presence of Cl- ions (at concentrations ranging from 0.5 M to 3.5 M) were investigated through electrochemical impedance spectroscopy (EIS) analysis, focusing on the kinetic parameters, suggesting that the rate-determining step (RDS) is the chemical process following the initial electron transfer. Notably, Cl- ions in the electrolyte medium do not alter the OER rate-limiting step, as indicated by negligible variations in the anodic transfer coefficient values. However, blocking active sites is evident from the decrease in interfacial chemical capacitance (Cchem) values with increasing Cl- concentration. These findings offer a deeper understanding of OER reaction kinetics in chloride-containing environments by correlating electrochemical kinetic parameters with active site availability. This work highlights critical considerations for designing efficient and durable anodes for seawater electrolysis.
Collapse
Affiliation(s)
- Pitchai Thangasamy
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Singapore, Jurong Island 627833, Republic of Singapore
| | - Truong-Giang Vo
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Singapore, Jurong Island 627833, Republic of Singapore
| | - Raghunath Venkatramanan
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Singapore, Jurong Island 627833, Republic of Singapore
| | - Yan-Ting Ng
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Singapore, Jurong Island 627833, Republic of Singapore
| | - Jiajian Gao
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Singapore, Jurong Island 627833, Republic of Singapore
| | - Yan Liu
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Singapore, Jurong Island 627833, Republic of Singapore
| |
Collapse
|
2
|
Sariga, Varghese A. The Renaissance of Ferrocene-Based Electrocatalysts: Properties, Synthesis Strategies, and Applications. Top Curr Chem (Cham) 2023; 381:32. [PMID: 37910233 DOI: 10.1007/s41061-023-00441-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 10/06/2023] [Indexed: 11/03/2023]
Abstract
The fascinating electrochemical properties of the redox-active compound ferrocene have inspired researchers across the globe to develop ferrocene-based electrocatalysts for a wide variety of applications. Advantages including excellent chemical and thermal stability, solubility in organic solvents, a pair of stable redox states, rapid electron transfer, and nontoxic nature improve its utility in various electrochemical applications. The use of ferrocene-based electrocatalysts enables control over the intrinsic properties and electroactive sites at the surface of the electrode to achieve specific electrochemical activities. Ferrocene and its derivatives can function as a potential redox medium that promotes electron transfer rates, thereby enhancing the reaction kinetics and electrochemical responses of the device. The outstanding electrocatalytic activity of ferrocene-based compounds at lower operating potentials enhances the specificity and sensitivity of reactions and also amplifies the response signals. Owing to their versatile redox chemistry and catalytic activities, ferrocene-based electrocatalysts are widely employed in various energy-related systems, molecular machines, and agricultural, biological, medicinal, and sensing applications. This review highlights the importance of ferrocene-based electrocatalysts, with emphasis on their properties, synthesis strategies for obtaining different ferrocene-based compounds, and their electrochemical applications.
Collapse
Affiliation(s)
- Sariga
- CHRIST (Deemed to Be University), Bangalore, Karnataka, 560029, India
| | - Anitha Varghese
- CHRIST (Deemed to Be University), Bangalore, Karnataka, 560029, India.
| |
Collapse
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Nazari M, Ghaemmaghami M. Approach to Evaluation of Electrocatalytic Water Splitting Parameters, Reflecting Intrinsic Activity: Toward the Right Pathway. CHEMSUSCHEM 2023; 16:e202202126. [PMID: 36867113 DOI: 10.1002/cssc.202202126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 03/03/2023] [Indexed: 06/10/2023]
Abstract
The development of transition metal-based non-precious-metal electrocatalysts for energy storage and conversion systems has received a lot of interest recently. To further this subject in the proper way given the development of electrocatalysts, a fair comparison of their respective performance is necessary. This Review investigates the parameters used for the comparison of electrocatalyst activity. Significant evaluation criteria employed in electrochemical water splitting studies are the overpotential at defined current density usually at 10 mA per geometric surface area, Tafel slope, exchange current density, mass activity, specific activity and turnover frequency (TOF). This Review will discuss how to identify the specific activity and TOF by electrochemical and non-electrochemical methods to represent intrinsic activity as well as the benefits and uncertainties of each technique, ensuring that each method is applied correctly when calculating intrinsic activity metrics.
Collapse
Affiliation(s)
- Mahrokh Nazari
- Department of Chemistry, Tarbiat Modares University, P.O. Box, 14115-175, Tehran, Iran
| | - Mostafa Ghaemmaghami
- Department of Chemistry, Tarbiat Modares University, P.O. Box, 14115-175, Tehran, Iran
| |
Collapse
|
5
|
Zhang X, Zhu S, Song L, Xu Y, Wang Y. NiS gradient distribution on arrayed porous carbonized grapefruit peel for water splitting. NANOSCALE 2023; 15:3764-3771. [PMID: 36723125 DOI: 10.1039/d2nr06868k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Metal-based catalysts on biomass carbon substrates can combine their respective advantages of composition and structure to improve the catalytic performance. Herein, NiS supported on grapefruit peel derived array porous carbon (APC) was obtained via a carbonization process without emission of toxic gases. The natural S source from grapefruit peel reacted with nickel salt solution. The gradient distribution of NiS and S on the APC substrates can be altered by the concentration of impregnating salt solution. Theoretical calculations showed that the S gradient distribution on APC could tune the electronic structure and optimize the adsorption energies of the intermediates. NiS was firmly anchored on the porous carbon framework, resulting in enhanced high intrinsic activity, exposure of more active sites, and accelerated mass transfer. The active mass density was proposed to build a relationship between active metal content and electrolyte diffusion capacity for the evaluation of catalytic properties.
Collapse
Affiliation(s)
- Xiaoyun Zhang
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Shifan Zhu
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Lili Song
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Yixue Xu
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Yuqiao Wang
- Research Center for Nano Photoelectrochemistry and Devices, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| |
Collapse
|
6
|
Abu Hatab AS, Ahmad YH, Ibrahim M, Elsafi Ahmed A, Abdul Rahman MB, Al-Qaradawi SY. MOF-Derived Cobalt@Mesoporous Carbon as Electrocatalysts for Oxygen Evolution Reaction: Impact of Organic Linker. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1123-1134. [PMID: 36607611 DOI: 10.1021/acs.langmuir.2c02873] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Water electrolysis has attracted scientists' attention as a green route for energy generation. However, the sluggish kinetics of oxygen evolution reaction (OER) remarkably increases the reaction overpotential. In this work, we developed Co-based nanomaterials as cost-effective, highly efficient catalysts for OER. In this regard, different Co-based metal-organic frameworks (MOFs) were synthesized using different organic linkers. After annealing under inert atmosphere, the corresponding Co-embedded mesoporous carbon (Co/MC) materials were produced. Among them, Co/MC synthesized using 2-methyl imidazole (Co/NMC-2MeIM) expressed the highest surface area (412 m2/g) compared to its counterparts. Furthermore, it expressed a higher degree of defects as depicted by Raman spectra. Co/NMC-2MeIM exhibited the best catalytic performance toward OER in alkaline medium. It afforded an overpotential of 292 mV at a current density of 10 mA cm-2 and a Tafel slope of 99.2 mV dec-1. The superior electrocatalytic performance of Co/NMC-2MeIM is attributed to its high content of Co3+ on the surface, high surface area, and enhanced electrical conductivity induced by nitrogen doping. Furthermore, its high content of pyridinic-N and high degree of defects remarkably enhance the charge transfer between the adsorbed oxygen species and the active sites. These results may pave the avenue toward further investigation of metal/carbon materials in a wide range of electrocatalytic applications.
Collapse
Affiliation(s)
- Aymen S Abu Hatab
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia UPM, 43400Serdang, Selangor, Malaysia
- Integrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia UPM, 43400Serdang, Selangor, Malaysia
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha2713, Qatar
| | - Yahia H Ahmad
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha2713, Qatar
| | - Muna Ibrahim
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha2713, Qatar
| | - Alaa Elsafi Ahmed
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha2713, Qatar
| | - Mohd Basyaruddin Abdul Rahman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia UPM, 43400Serdang, Selangor, Malaysia
- Integrated Chemical BioPhysics Research, Faculty of Science, Universiti Putra Malaysia UPM, 43400Serdang, Selangor, Malaysia
| | - Siham Y Al-Qaradawi
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha2713, Qatar
| |
Collapse
|
7
|
Wang H, Ren J, Wang A, Wang Q, Zhao W, Zhao L. Synergistic catalysis of graphitic carbon nitride supported bimetallic sulfide nanostructures for efficient oxygen generation. Chem Commun (Camb) 2022; 58:9202-9205. [PMID: 35894838 DOI: 10.1039/d2cc03619c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a series of g-C3N4 supported bimetallic sulfide nanostructures (Ni3S2/MoS2/ng-C3N4, n = 10, 20 and 30) was prepared by a hydrothermal method and subsequently a thermal annealing approach. Ni3S2/MoS2/20g-C3N4 with controlled composition exhibits efficient OER activity with a low overpotential of 183 mV at 10 mA cm-2, which outperforms the vast majority of sulfide OER electrocatalysts reported previously.
Collapse
Affiliation(s)
- Huixian Wang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China.
| | - Jinshen Ren
- School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Aijian Wang
- School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Qian Wang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China.
| | - Wei Zhao
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China.
| | - Long Zhao
- School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| |
Collapse
|
8
|
Tian X, Yi P, Sun J, Li C, Liu R, Sun JK. The Scalable Solid-State Synthesis of a Ni5P4/Ni2P–FeNi Alloy Encapsulated into a Hierarchical Porous Carbon Framework for Efficient Oxygen Evolution Reactions. NANOMATERIALS 2022; 12:nano12111848. [PMID: 35683704 PMCID: PMC9182157 DOI: 10.3390/nano12111848] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022]
Abstract
The exploration of high-performance and low-cost electrocatalysts towards the oxygen evolution reaction (OER) is essential for large-scale water/seawater splitting. Herein, we develop a strategy involving the in situ generation of a template and pore-former to encapsulate a Ni5P4/Ni2P heterojunction and dispersive FeNi alloy hybrid particles into a three-dimensional hierarchical porous graphitic carbon framework (labeled as Ni5P4/Ni2P–FeNi@C) via a room-temperature solid-state grinding and sodium-carbonate-assisted pyrolysis method. The synergistic effect of the components and the architecture provides a large surface area with a sufficient number of active sites and a hierarchical porous pathway for efficient electron transfer and mass diffusion. Furthermore, a graphitic carbon coating layer restrains the corrosion of alloy particles to boost the long-term durability of the catalyst. Consequently, the Ni5P4/Ni2P–FeNi@C catalyst exhibits extraordinary OER activity with a low overpotential of 242 mV (10 mA cm−2), outperforming the commercial RuO2 catalyst in 1 M KOH. Meanwhile, a scale-up of the Ni5P4/Ni2P–FeNi@C catalyst created by a ball-milling method displays a similar level of activity to the above grinding method. In 1 M KOH + seawater electrolyte, Ni5P4/Ni2P–FeNi@C also displays excellent stability; it can continuously operate for 160 h with a negligible potential increase of 2 mV. This work may provide a new avenue for facile mass production of an efficient electrocatalyst for water/seawater splitting and diverse other applications.
Collapse
Affiliation(s)
- Xiangyun Tian
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, China; (X.T.); (P.Y.); (C.L.)
| | - Peng Yi
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, China; (X.T.); (P.Y.); (C.L.)
| | - Junwei Sun
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China;
| | - Caiyun Li
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, China; (X.T.); (P.Y.); (C.L.)
| | - Rongzhan Liu
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, China; (X.T.); (P.Y.); (C.L.)
- Collaborative Innovation Center for Eco-Textiles of Shandong Province and the Ministry of Education, Qingdao University, Qingdao 266071, China
- Correspondence: (R.L.); (J.-K.S.)
| | - Jian-Kun Sun
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China;
- Correspondence: (R.L.); (J.-K.S.)
| |
Collapse
|
9
|
Xia L, Pan K, Wu H, Wang F, Liu Y, Xu Y, Dong Z, Wei B, Wei S. Few-Layered WS 2 Anchored on Co, N-Doped Carbon Hollow Polyhedron for Oxygen Evolution and Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22030-22040. [PMID: 35466672 DOI: 10.1021/acsami.2c00326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Tungsten disulfide (WS2) is well known to have great potential as an electrocatalyst, but the practical application is hampered by its intrinsic inert plane and semiconductor properties. In this work, owing to a Co-based zeolite imidazole framework (ZIF-67) that effectively inhibited WS2 growth, few-layered WS2 was confined to the surface of Co, N-doped carbon polyhedron (WS2@Co9S8), with more marginal active sites and higher conductivity, which promoted efficient oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). For the first time, WS2@Co9S8 was prepared by mixing in one pot of a liquid phase and calcination, and WS2 realized uniform distribution on the polyhedron surface by electrostatic adsorption in the liquid phase. The obtained hybrid catalyst exhibited excellent OER and HER catalytic activity, and the OER potential was only 15 mV at 10 mA cm-2 higher than that of noble metal oxide (RuO2). The improvement of catalytic activity can be attributed to the enhanced exposure of sulfur edge sites by WS2, the unique synergistic effect between WS2 and Co9S8 on the metal-organic framework (MOF) surface, and the effective shortening of the diffusion path by the hollow multi-channel structure. Therefore, the robust catalyst (WS2@Co9S8) prepared by a simple and efficient synthesis method in this work will serve as a highly promising bifunctional catalyst for OER and HER.
Collapse
Affiliation(s)
- Liangbin Xia
- National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan Key Laboratory of High-Temperature Structural and Functional Materials, Henan University of Science and Technology, Luoyang 471000, China
| | - Kunming Pan
- National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan Key Laboratory of High-Temperature Structural and Functional Materials, Henan University of Science and Technology, Luoyang 471000, China
| | - Haitao Wu
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou City, Jiangsu Province 215009, China
| | - Fang Wang
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, Henan 471023, China
- Henan Province International Joint Laboratory of Materials for Solar Energy Conversion and Lithium Sodium based Battery, Luoyang 471023, China
| | - Yong Liu
- National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan Key Laboratory of High-Temperature Structural and Functional Materials, Henan University of Science and Technology, Luoyang 471000, China
| | - Yanjie Xu
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, Henan 471023, China
| | - Zhili Dong
- School of Materials Science and Engineering, Nanyang Technological University 639798, Singapore
| | - Bicheng Wei
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, Henan 471023, China
| | - Shizhong Wei
- National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan Key Laboratory of High-Temperature Structural and Functional Materials, Henan University of Science and Technology, Luoyang 471000, China
| |
Collapse
|