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Zhang Q, Zeng X, Zhang Z, Jin C, Cui Y, Gao Y. Electronic transfer and structural reconstruction in porous NF/FeNiP-CoP@NC heterostructure for robust overall water splitting in alkaline electrolytes. J Colloid Interface Sci 2024; 675:357-368. [PMID: 38972123 DOI: 10.1016/j.jcis.2024.07.019] [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: 03/26/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/09/2024]
Abstract
Multimetal phosphides derived from metal-organic frameworks (MOFs) have garnered significant interest owing to their distinct electronic configurations and abundant active sites. However, developing robust and efficient catalysts based on metal phosphides for overall water splitting (OWS) remains challenging. Herein, we present an approach for synthesizing a self-supporting hollow porous cubic FeNiP-CoP@NC catalyst on a nickel foam (NF) substrate. Through ion exchange, the reconstruction chemistry transforms the FeNi-MOF nanospheres into intricate hollow porous FeNi-MOF-Co nanocubes. After phosphorization, numerous N, P co-doped carbon-coated FeNiP-CoP nanoparticles were tightly embedded within a two-dimensional (2D) carbon matrix. The NF/FeNiP-CoP@NC heterostructure retained a porous configuration, numerous heterogeneous interfaces, distinct defects, and a rich composition of active sites. Moreover, incorporating Co and the resulting structural evolution facilitated the electron transfer in FeNiP-CoP@NC, enhancing the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) processes. Consequently, the NF/FeNiP-CoP@NC catalyst demonstrated very low overpotentials of 78 mV for OER and 254 mV for HER in an alkaline medium. It also exhibited excellent long-term stability at various potentials (@10 mA cm-2, @20 mA cm-2, and @50 mA cm-2). As an overall water splitting cell, it required only 1.478 V to drive a current density of 50 mA cm-2 and demonstrated long-term stability. Density functional theory (DFT) calculations revealed a synergistic effect between multimetal phosphides, enhancing the intrinsic OER and HER activities of FeNiP-CoP@NC. This work not only elucidates the role of heteroatom induction in structural reconstruction but also highlights the importance of electronic structure modulation.
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Affiliation(s)
- Qingqing Zhang
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China
| | - Xiaojun Zeng
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.
| | - Zuliang Zhang
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China
| | - Chulong Jin
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China
| | - Yuanyuan Cui
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Yanfeng Gao
- National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China; School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China.
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2
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Long N, Peng J, Jiang Y, Shen W, He R, Li M. Synergy of Interface Coupling and Sulfur Vacancies in Ni 3S 2/Fe 2P for Water Splitting. Inorg Chem 2024; 63:16382-16392. [PMID: 39172735 DOI: 10.1021/acs.inorgchem.4c02339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Integrated application of interface engineering and vacancy engineering is a promising and effective strategy for the design and fabrication of high-performance electrocatalysts. Herein, the heterointerface catalyst with rich sulfur vacancies, vs-Ni3S2/Fe2P, was successfully designed and constructed. The strong heterointerface coupling and rich sulfur vacancies in vs-Ni3S2/Fe2P significantly optimize the electronic structure of the catalyst and synergistically improve the inherent catalytic activity. Benefiting from the optimization of the electronic structure, vs-Ni3S2/Fe2P exhibits excellent bifunctional electrocatalytic performance in alkaline electrolytes. The overpotentials for hydrogen and oxygen evolution reactions (HER and OER) are 99 and 169 mV at a current density of 10 mA cm-2, respectively. Particularly, it achieves an ultrahigh OER performance with an overpotential of 251 mV at 300 mA cm-2. Moreover, the catalyst also displays outstanding long-term durability. Density functional theory (DFT) computations reveal that the synergy of interface coupling and sulfur vacancies is crucial to optimizing the electronic structure. This study offers a hopeful pathway for the design and construction of durable and efficient electrocatalysts.
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Affiliation(s)
- Ning Long
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Jing Peng
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yimin Jiang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Wei Shen
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Rongxing He
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Ming Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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Zang B, Liu X, Gu C, Chen J, Wang L, Zheng W. Design Strategies of Hydrogen Evolution Reaction Nano Electrocatalysts for High Current Density Water Splitting. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1172. [PMID: 39057849 PMCID: PMC11280403 DOI: 10.3390/nano14141172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Revised: 07/04/2024] [Accepted: 07/06/2024] [Indexed: 07/28/2024]
Abstract
Hydrogen is now recognized as the primary alternative to fossil fuels due to its renewable, safe, high-energy density and environmentally friendly properties. Efficient hydrogen production through water splitting has laid the foundation for sustainable energy technologies. However, when hydrogen production is scaled up to industrial levels, operating at high current densities introduces unique challenges. It is necessary to design advanced electrocatalysts for hydrogen evolution reactions (HERs) under high current densities. This review will briefly introduce the challenges posed by high current densities on electrocatalysts, including catalytic activity, mass diffusion, and catalyst stability. In an attempt to address these issues, various electrocatalyst design strategies are summarized in detail. In the end, our insights into future challenges for efficient large-scale industrial hydrogen production from water splitting are presented. This review is expected to guide the rational design of efficient high-current density water electrolysis electrocatalysts and promote the research progress of sustainable energy.
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Affiliation(s)
- Bao Zang
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (B.Z.); (X.L.); (C.G.); (J.C.)
| | - Xianya Liu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (B.Z.); (X.L.); (C.G.); (J.C.)
| | - Chen Gu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (B.Z.); (X.L.); (C.G.); (J.C.)
| | - Jianmei Chen
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (B.Z.); (X.L.); (C.G.); (J.C.)
| | - Longlu Wang
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (B.Z.); (X.L.); (C.G.); (J.C.)
| | - Weihao Zheng
- 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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Bookholt T, Qin X, Lilli B, Enke D, Huck M, Balkenhohl D, Rüwe K, Brune J, Klare JP, Küpper K, Schuster A, Bergjan J, Steinhart M, Gröger H, Daum D, Schäfer H. Increased Readiness for Water Splitting: NiO-Induced Weakening of Bonds in Water Molecules as Possible Cause of Ultra-Low Oxygen Evolution Potential. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310665. [PMID: 38386292 DOI: 10.1002/smll.202310665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/08/2024] [Indexed: 02/23/2024]
Abstract
The development of non-precious metal-based electrodes that actively and stably support the oxygen evolution reaction (OER) in water electrolysis systems remains a challenge, especially at low pH levels. The recently published study has conclusively shown that the addition of haematite to H2SO4 is a highly effective method of significantly reducing oxygen evolution overpotential and extending anode life. The far superior result is achieved by concentrating oxygen evolution centres on the oxide particles rather than on the electrode. However, unsatisfactory Faradaic efficiencies of the OER and hydrogen evolution reaction (HER) parts as well as the required high haematite load impede applicability and upscaling of this process. Here it is shown that the same performance is achieved with three times less metal oxide powder if NiO/H2SO4 suspensions are used along with stainless steel anodes. The reason for the enormous improvement in OER performance by adding NiO to the electrolyte is the weakening of the intramolecular O─H bond in the water molecules, which is under the direct influence of the nickel oxide suspended in the electrolyte. The manipulation of bonds in water molecules to increase the tendency of the water to split is a ground-breaking development, as shown in this first example.
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Affiliation(s)
- Tom Bookholt
- University of Osnabrück, The Electrochemical Energy and Catalysis Group, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Xian Qin
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Key Laboratory of Flexible Electronics, Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou, 350117, P. R. China
| | - Bettina Lilli
- University of Leipzig, Institute of Chemical Technology, 04103, Leipzig, Germany
| | - Dirk Enke
- University of Leipzig, Institute of Chemical Technology, 04103, Leipzig, Germany
| | - Marten Huck
- University of Osnabrück, The Electrochemical Energy and Catalysis Group, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Danni Balkenhohl
- University of Osnabrück, The Electrochemical Energy and Catalysis Group, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Klara Rüwe
- University of Osnabrück, The Electrochemical Energy and Catalysis Group, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Julia Brune
- University of Osnabrück, The Electrochemical Energy and Catalysis Group, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Johann P Klare
- University of Osnabrück Department of Physics, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Karsten Küpper
- University of Osnabrück Department of Physics, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Anja Schuster
- University of Osnabrück, Inorganic Chemistry II, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Jenrik Bergjan
- University of Osnabrück, Physical Chemistry, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Martin Steinhart
- University of Osnabrück, Physical Chemistry, Barbarastrasse 7, 49076, Osnabrück, Germany
| | - Harald Gröger
- Bielefeld University, Chair of Industrial Organic Chemistry and Biotechnology, Faculty of Chemistry, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Diemo Daum
- Osnabrück University of Applied Sciences, Faculty of Agricultural Science and Landscape Architecture, Laboratory of Plant Nutrition and Chemistry, Am Krümpel 31, 49090, Osnabrück, Germany
| | - Helmut Schäfer
- University of Osnabrück, The Electrochemical Energy and Catalysis Group, Barbarastrasse 7, 49076, Osnabrück, Germany
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5
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Wang L, Wang P, Xue X, Wang D, Shang H, Zhao Y, Zhang B. Interface engineering of three-phase nickel-cobalt sulfide/nickel phosphide/iron phosphide heterostructure for enhanced water splitting and urea electrolysis. J Colloid Interface Sci 2024; 665:88-99. [PMID: 38518423 DOI: 10.1016/j.jcis.2024.03.109] [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: 01/16/2024] [Revised: 03/04/2024] [Accepted: 03/16/2024] [Indexed: 03/24/2024]
Abstract
Rational designing efficient transition metal-based multifunctional electrocatalysts is highly desirable for improving the efficiency of hydrogen production from water cracking. Herein, a self-supported three-phase heterostructure electrocatalyst of nickel-cobalt sulfide/nickel phosphide/iron phosphide (CoNi5S8-Ni2P-FeP2) was prepared by a two-step gas-phase sulfurization/phosphorization strategy. The heterostructure in CoNi5S8-Ni2P-FeP2 provides a favorable interfacial environment for electron transfer and synergistic interaction of multiphase active components, while the introduced electronegative P/S not only serves as a carrier for proton capture in the hydrogen evolution reaction (HER) process but also promotes the metal-electron outflow, which in turn accelerates the generation of high-valent Ni3+ species to enhance the catalytic activity of oxygen evolution reaction (OER) and urea oxidation reaction (UOR). As expected, CoNi5S8-Ni2P-FeP2 reveals excellent multifunctional electrocatalytic properties. An overpotential of 35/215 mV is required to reach 10 mA cm-2 for HER/OER. More encouragingly, a current of 100 mA cm-2 requires only 1.36 V for UOR with CoNi5S8-Ni2P-FeP2 as anode, which is much lower as compared to the OER (1.50 V). Besides, a two-electrode water/urea electrolyzer assembled based on CoNi5S8-Ni2P-FeP2 has a voltage of only 1.59/1.48 V when the system reaches 50 mA cm-2. This work provides a new idea for the design of energy-efficient water/urea-assisted water-splitting multifunctional catalysts with multi-component heterostructure synergistic interface engineering.
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Affiliation(s)
- Longqian Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Pan Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Xin Xue
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Dan Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Huishan Shang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yafei Zhao
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, PR China.
| | - Bing Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, PR China
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6
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Yao S, Wang S, Wang J, Hou Z, Gao X, Liu Y, Fu W, Nie K, Xie J, Yang Z, Yan YM. Activation of MnO 6 Units via an Interfacial Electric Field: Electron Injection into Mn t 2g for Rapid and Stable Sodium Ion Storage in CeO 2/MnO x. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307482. [PMID: 38412428 DOI: 10.1002/smll.202307482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/19/2023] [Indexed: 02/29/2024]
Abstract
Manganese-based oxides (MnOx) suffer from sluggish charge diffusion kinetics and poor cycling stability in sodium ion storage. Herein, an interfacial electric field (IEF) in CeO2/MnOx is constructed to obtain high electronic/ionic conductivity and structural stability of MnOx. The as-designed CeO2/MnOx exhibits a remarkable capacity of 397 F g-1 and favorable cyclic stability with 92.13% capacity retention after 10,000 cycles. Soft X-ray absorption spectroscopy and partial density of states results reveal that the electrons are substantially injected into the Mn t2g orbitals driven by the formed IEF. Correspondingly, the MnO6 units in MnOx are effectively activated, endowing the CeO2/MnOx with fast charge transfer kinetics and high sodium ion storage capacity. Moreover, In situRaman verifies a remarkably increased structural stability of CeO2/MnOx, which is attributed to the enhanced Mn─O bond strength and efficiently stabilized MnO6 units. Mechanism studies show that the downshift of Mn 3d-band center dramatically increases the Mn 3d-O 2p orbitals overlap, thus inhibiting the Jahn-Teller (J-T) distortion of MnOx during sodium ion insertion/extraction. This work develops an advanced strategy to achieve both fast and sustainable sodium ion storage in metal oxides-based energy materials.
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Affiliation(s)
- Shuyun Yao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shiyu Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jinrui Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zishan Hou
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xueying Gao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yuanming Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Weijie Fu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Kaiqi Nie
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiangzhou Xie
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Zhiyu Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yi-Ming Yan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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Nairan A, Feng Z, Zheng R, Khan U, Gao J. Engineering Metallic Alloy Electrode for Robust and Active Water Electrocatalysis with Large Current Density Exceeding 2000 mA cm -2. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401448. [PMID: 38518760 DOI: 10.1002/adma.202401448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Indexed: 03/24/2024]
Abstract
The amelioration of brilliantly effective electrocatalysts working at high current density for the oxygen evolution reaction (OER) is imperative for cost-efficient electrochemical hydrogen production. Yet, the kinetically sluggish and unstable catalysts remain elusive to large-scale hydrogen (H2) generation for industrial applications. Herein, a new strategy is demonstrated to significantly enhance the intrinsic activity of Ni1-xFex nanochain arrays through a trace proportion of heteroatom phosphorus doping that permits robust water splitting at an extremely large current density of 1000 and 2000 mA cm-2 for 760 h. The in situ formation of Ni2P and Ni5P4 on Ni1-xFex nanochain arrays surface and hierarchical geometry of the electrode significantly promote the reaction kinetics and OER activity. The OER electrode provides exceptionally low overpotentials of 222 and 327 mV at current densities of 10 and 2000 mA cm-2 in alkaline media, dramatically lower than benchmark IrO2 and is among the most active catalysts yet reported. Remarkably, the alkaline electrolyzer renders a low voltage of 1.75 V at a large current density of 1000 mA cm-2, indicating outperformed overall water splitting. The electrochemical fingerprints demonstrate vital progress toward large-scale H2 production for industrial water electrolysis.
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Affiliation(s)
- Adeela Nairan
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Zhuo Feng
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Ruiming Zheng
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Usman Khan
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Junkuo Gao
- Institute of Functional Porous Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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8
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Andreou E, Vamvasakis I, Armatas GS. Efficient Visible Light Photocatalytic Hydrogen Evolution by Boosting the Interfacial Electron Transfer in Mesoporous Mott-Schottky Heterojunctions of Co 2P-Modified CdIn 2S 4 Nanocrystals. ACS APPLIED ENERGY MATERIALS 2024; 7:4891-4903. [PMID: 38911345 PMCID: PMC11192152 DOI: 10.1021/acsaem.4c00710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/09/2024] [Accepted: 05/09/2024] [Indexed: 06/25/2024]
Abstract
Photocatalytic water splitting for hydrogen generation is an appealing means of sustainable solar energy storage. In the past few years, mesoporous semiconductors have been at the forefront of investigations in low-cost chemical fuel production and energy conversion technologies. Mesoporosity combined with the tunable electronic properties of semiconducting nanocrystals offers the desired large accessible surface and electronic connectivity throughout the framework, thus enhancing photocatalytic activity. In this work, we present the construction of rationally designed 3D mesoporous networks of Co2P-modified CdIn2S4 nanoscale crystals (ca. 5-6 nm in size) through an effective soft-templating synthetic route and demonstrate their impressive performance for visible-light-irradiated catalytic hydrogen production. Spectroscopic characterizations combined with electrochemical studies unravel the multipathway electron transfer dynamics across the interface of Co2P/CdIn2S4 Mott-Schottky nanoheterojunctions and shed light on their impact on the photocatalytic hydrogen evolution chemistry. The strong Mott-Schottky interaction occurring at the heterointerface can regulate the charge transport toward greatly improved hydrogen evolution performance. The hybrid catalyst with 10 wt % Co2P content unveils a H2 evolution rate of 20.9 mmol gcat -1 h-1 under visible light irradiation with an apparent quantum efficiency (AQE) up to 56.1% at 420 nm, which is among the highest reported activities. The understanding of interfacial charge-transfer mechanism could provide valuable insights into the rational development of highly efficient catalysts for clean energy applications.
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Affiliation(s)
- Evangelos
K. Andreou
- Department of Materials Science
and Engineering University of Crete, Vassilika Vouton, Heraklion 70013, Greece
| | - Ioannis Vamvasakis
- Department of Materials Science
and Engineering University of Crete, Vassilika Vouton, Heraklion 70013, Greece
| | - Gerasimos S. Armatas
- Department of Materials Science
and Engineering University of Crete, Vassilika Vouton, Heraklion 70013, Greece
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9
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Huang J, Shi Z, Mao C, Yang G, Chen Y. Wood-Structured Nanomaterials as Highly Efficient, Self-Standing Electrocatalysts for Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402511. [PMID: 38837861 DOI: 10.1002/smll.202402511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/25/2024] [Indexed: 06/07/2024]
Abstract
Electrocatalytic water splitting (EWS) driven by renewable energy is widely considered an environmentally friendly and sustainable approach for generating hydrogen (H2), an ideal energy carrier for the future. However, the efficiency and economic viability of large-scale water electrolysis depend on electrocatalysts that can efficiently accelerate the electrochemical reactions taking place at the two electrodes. Wood-derived nanomaterials are well-suited for serving as EWS catalysts because of their hierarchically porous structure with high surface area and low tortuosity, compositional tunability, cost-effectiveness, and self-standing integral electrode configuration. Here, recent advancements in the design and synthesis of wood-structured nanomaterials serving as advanced electrocatalysts for water splitting are summarized. First, the design principles and corresponding strategies toward highly effective wood-structured electrocatalysts (WSECs) are emphasized. Then, a comprehensive overview of current findings on WSECs, encompassing diverse structural designs and functionalities such as supported-metal nanoparticles (NPs), single-atom catalysts (SACs), metal compounds, and heterostructured electrocatalysts based on engineered wood hosts are presented. Subsequently, the application of these WSECs in various aspects of water splitting, including the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), overall water splitting (OWS), and hybrid water electrolysis (HWE) are explored. Finally, the prospects, challenges, and opportunities associated with the broad application of WSECs are briefly discussed. This review aims to provide a comprehensive understanding of the ongoing developments in water-splitting catalysts, along with outlining design principles for the future development of WSECs.
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Affiliation(s)
- Jianlin Huang
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510006, China
| | - Zhikai Shi
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510006, China
| | - Chengwei Mao
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510006, China
| | - Gaixiu Yang
- CAS Key Laboratory of Renewable Energy Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Yan Chen
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, 510006, China
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10
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Ye J, Yuan B, Peng W, Liang J, Han Q, Hu R. Highly Stable Mo-NiO@NiFe-Layered Double Hydroxide Heterojunction Anode Catalyst for Alkaline Electrolyzers with Porous Membrane. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38652766 DOI: 10.1021/acsami.4c00974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Heterostructure catalysts are considered as promising candidates for promoting the oxygen evolution reaction (OER) process due to their strong electron coupling. However, the inevitable dissolution and detachment of the heterostructure catalysts are caused by the severe reconstruction, dramatically limiting their industrial application. Herein, the NiFe-layered double hydroxide (LDH) nanosheets attached on Mo-NiO microrods (Mo-NiO@NiFe LDH) by the preoxidation strategy of the core NiMoN layer are synthesized for ensuring the high catalytic performance and stability. Owing to the enhanced electron coupling and preoxidation process, the obtained Mo-NiO@NiFe LDH exhibits a superlow overpotential of 253 mV to achieve a practically relevant current density of 1000 mA cm-2 for OER with exceptional stability over 1200 h. Notably, the overall water splitting system based on Mo-NiO@NiFe LDH reveals remarkable stability, maintaining the catalytic activity at a current density of 1000 mA cm-2 for 140 h under industrial harsh conditions. Furthermore, the Mo-NiO@NiFe LDH demonstrates outstanding activity and long-term durability in a practical alkaline electrolyzer assembly with a porous membrane, even surpassing the performance of IrO2. This work provides a new sight for designing and synthesizing highly stable heterojunction electrocatalysts, further promoting and realizing the industrial electrocatalytic OER.
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Affiliation(s)
- Jianwei Ye
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
| | - Bin Yuan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P. R. China
| | - Weiliang Peng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
| | - Jinxia Liang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
| | - Qiying Han
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P. R. China
- Guangdong Jinsheng New Energy Co Ltd, Zhaoqing 526116, P. R. China
| | - Renzong Hu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Guangdong Engineering Technology Research Center of Advanced Energy Storage Materials, Guangzhou 510640, P. R. China
- Guangdong Province Waste Lithium Battery Clean Regeneration Engineering Technology Research Center, Zhaoqing 526116, P. R. China
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11
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Cheng Y, Chen H, Zhang L, Xu X, Cheng H, Yan C, Qian T. Evolution of Grain Boundaries Promoted Hydrogen Production for Industrial-Grade Current Density. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313156. [PMID: 38242541 DOI: 10.1002/adma.202313156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/16/2024] [Indexed: 01/21/2024]
Abstract
The development of efficient and durable high-current-density hydrogen production electrocatalysts is crucial for the large-scale production of green hydrogen and the early realization of hydrogen economic blueprint. Herein, the evolution of grain boundaries through Cu-mediated NiMo bimetallic oxides (MCu-BNiMo), which leading to the high efficiency of electrocatalyst for hydrogen evolution process (HER) in industrial-grade current density, is successfully driven. The optimal MCu0.10-BNiMo demonstrates ultrahigh current density (>2 A cm-2) at a smaller overpotential in 1 m KOH (572 mV), than that of BNiMo, which does not have lattice strain. Experimental and theoretical calculations reveal that MCu0.10-BNiMo with optimal lattice strain generated more electrophilic Mo sites with partial oxidation owing to accelerated charge transfer from Cu to Mo, which lowers the energy barriers for H* adsorption. These synergistic effects lead to the enhanced HER performance of MCu0.10-BNiMo. More importantly, industrial application of MCu0.10-BNiMo operated in alkaline electrolytic cell is also determined, with its current density reached 0.5 A cm-2 at 2.12 V and 0.1 A cm-2 at 1.79 V, which is nearly five-fold that of the state-of-the-art HER electrocatalyst Pt/C. The strategy provides valuable insights for achieving industrial-scale hydrogen production through a highly efficient HER electrocatalyst.
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Affiliation(s)
- Yu Cheng
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Huanyu Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Xinnan Xu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Huili Cheng
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Chenglin Yan
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou, 215006, P. R. China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
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12
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Hou J, Mei K, Jiang T, Yu X, Wu M. NiFeP nanosheets for efficient and durable hydrazine-assisted electrolytic hydrogen production. Dalton Trans 2024; 53:4574-4579. [PMID: 38349199 DOI: 10.1039/d3dt04373h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Hydrazine-assisted electrochemical water splitting is an important avenue toward low cost and sustainable hydrogen production, which can significantly reduce the voltage of electrochemical water splitting. Herein, we took a simple approach to fabricate NiFeP nanosheet arrays on nickel foam (NiFeP/NF), which exhibit superior electrocatalytic activity for the hydrogen evolution reaction (HER) and the hydrazine oxidation reaction (HzOR). Our investigations revealed that the excellent electrocatalytic activity of NiFeP/NF mainly arises from the bimetallic synergistic effect, abundant electrocatalytically active sites facilitated by the porous nanosheet morphology, high intrinsic conductivity of NiFeP/NF and strong NiFeP-NF adhesion. We assembled a hydrazine-boosted electrochemical water splitting cell using NiFeP/NF as a bifunctional catalyst for both electrodes, and the overall hydrazine splitting (OHzS) exhibits a considerably low overpotential (100 mV at 10 mA cm-2), and is stable for 40 h continuous electrolysis in a 1 M KOH + 0.5 M N2H4 electrolyte. When it is applied to hydrogen production by seawater electrolysis, its catalytic activity shows strong tolerance. This work provides a promising approach for low cost, high-efficiency and stable hydrogen production based on hydrazine-assisted electrolytic seawater splitting for future applications.
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Affiliation(s)
- Jinxing Hou
- School of Materials Science and Engineering, Anhui University, Hefei Anhui 230601, P. R. China.
| | - Kaifeng Mei
- School of Materials Science and Engineering, Anhui University, Hefei Anhui 230601, P. R. China.
| | - Tongtong Jiang
- School of Materials Science and Engineering, Anhui University, Hefei Anhui 230601, P. R. China.
| | - Xinxin Yu
- School of Materials Science and Engineering, Anhui University, Hefei Anhui 230601, P. R. China.
| | - Mingzai Wu
- School of Materials Science and Engineering, Anhui University, Hefei Anhui 230601, P. R. China.
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, P. R. China
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13
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Lee J, Lee J, Jin X, Kim H, Hwang SJ. Atomically-Thin Holey 2D Nanosheets of Defect-Engineered MoN-Mo 5 N 6 Composites as Effective Hybridization Matrices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306781. [PMID: 37806758 DOI: 10.1002/smll.202306781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/27/2023] [Indexed: 10/10/2023]
Abstract
The defect engineering of inorganic solids has received significant attention because of its high efficacy in optimizing energy-related functionalities. Consequently, this approach is effectively leveraged in the present study to synthesize atomically-thin holey 2D nanosheets of a MoN-Mo5 N6 composite. This is achieved by controlled nitridation of assembled MoS2 monolayers, which induced sequential cation/anion migration and a gradual decrease in the Mo valency. Precise control of the interlayer distance of the MoS2 monolayers via assembly with various tetraalkylammonium ions is found to be crucial for synthesizing sub-nanometer-thick holey MoN-Mo5 N6 nanosheets with a tunable anion/cation vacancy content. The holey MoN-Mo5 N6 nanosheets are employed as efficient immobilization matrices for Pt single atoms to achieve high electrocatalytic mass activity, decent durability, and low overpotential for the hydrogen evolution reaction (HER). In situ/ex situ spectroscopy and density functional theory (DFT) calculations reveal that the presence of cation-deficient Mo5 N6 domain is crucial for enhancing the interfacial interactions between the conductive molybdenum nitride substrate and Pt single atoms, leading to enhanced electron injection efficiency and electrochemical stability. The beneficial effects of the Pt-immobilizing holey MoN-Mo5 N6 nanosheets are associated with enhanced electronic coupling, resulting in improvements in HER kinetics and interfacial charge transfer.
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Affiliation(s)
- Jihyeong Lee
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Junsoo Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seong-Ju Hwang
- Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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14
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Zhang Z, Han L, Tao K. MnO x-decorated MOF-derived nickel-cobalt bimetallic phosphide nanosheet arrays for overall water splitting. Dalton Trans 2024; 53:1757-1765. [PMID: 38170799 DOI: 10.1039/d3dt03631f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Exploring non-noble metal dual-functional electrocatalysts with high activity and stability for water splitting is highly desirable. In this study, using zeolitic imidazolate framework-L (ZIF-L) nanoarrays as the precursor, manganese oxide-decorated porous nickel-cobalt phosphide nanosheet arrays have been prepared on nickel foam (denoted as MnOx/NiCoP/NF) through cation etching, phosphorization and electrodeposition, which are utilized as an efficient dual-functional electrocatalyst for overall water splitting. The hierarchical porous nanosheet arrays provide abundant active sites for the electrochemical process, while the MnOx modification induces strong interfacial interaction, benefiting charge transfer. Thus, the MnOx/NiCoP/NF exhibits excellent electrocatalytic activity toward the hydrogen evolution reaction (HER, overpotential of 93 mV at 10 mA cm-2), oxygen evolution reaction (OER, overpotential of 240 mV at 10 mA cm-2) and overall water splitting (cell voltage of 1.59 V at 10 mA cm-2). Furthermore, it shows superior stability during continuous overall water splitting for 200 h. This work provides a simple and effective approach for developing efficient non-noble metal dual-functional catalysts for overall water splitting.
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Affiliation(s)
- Zheng Zhang
- School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China.
| | - Lei Han
- School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China.
| | - Kai Tao
- School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China.
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15
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Wang X, Zhang K, Xie Y, Yu D, Tian H, Lou Y. MnO xH y-modified CoMoP/NF nanosheet arrays as hydrogen evolution reaction and oxygen evolution reaction bifunctional catalysts under alkaline conditions. Dalton Trans 2023; 52:15091-15100. [PMID: 37814596 DOI: 10.1039/d3dt02467a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
It is widely acknowledged that interface engineering strategies can significantly enhance the activity of catalysts. In this study, we developed a CoMoP nanoarray directly grown in situ on a nickel foam (NF) substrate, with the interface structure formed through the electrodeposition of MnOxHy. The resulting heterostructure MnOxHy/CoMoP/NF exhibited remarkable hydrogen evolution reaction (HER) activity, achieving overpotentials as low as 61 and 138 mV at 10 and 100 mA cm-2, respectively. Moreover, MnOxHy/CoMoP/NF demonstrated efficient oxygen evolution reaction (OER) activity with an overpotential of 330 mV at 100 mA cm-2. Remarkably, MnOxHy/CoMoP/NF maintained its catalytic properties and structural integrity even after working continuously for 20 h facilitating the HER at 10 mA cm-2 and the OER at 100 mA cm-2. The Tafel slopes of the HER and OER were determined to be as small as 14 and 55 mV dec-1, respectively, confirming that the coupled interface conferred fast reaction kinetics on the catalyst. When applied in overall water splitting, MnOxHy/CoMoP/NF delivered a voltage of 1.91 V at 100 mA cm-2 with excellent stability. This study demonstrated the feasibility of utilizing a simple electrodeposition technique to fabricate a heterogeneous structure with bifunctional catalytic activity, establishing a solid foundation for diverse industrial applications.
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Affiliation(s)
- Xuemin Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Ke Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Yuhan Xie
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Dehua Yu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Haoze Tian
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Yongbing Lou
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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16
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Dong Y, Deng Z, Zhang H, Liu G, Wang X. A Highly Active and Durable Hierarchical Electrocatalyst for Large-Current-Density Water Splitting. NANO LETTERS 2023; 23:9087-9095. [PMID: 37747850 DOI: 10.1021/acs.nanolett.3c02940] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Designing bifunctional catalysts with high current densities under industrial circumstances is crucial to propelling hydrogen energy with a boost from fundamental to practical application. In this work, heterojunction nanowire arrays consisting of manganese oxide and cobalt phosphide (denoted as MnO-CoP/NF) are designed to meet the industrial demand by regulating the synergic mass transport and electronic structure coupling with numerous nano-heterogeneous interfaces. The optimal MnO-CoP/NF electrode exhibits remarkable bifunctional electrocatalytic performance with overpotentials of 259.5 mV for hydrogen evolution at a large current density of 1000 mA cm-2 and 392.2 mV for oxygen evolution at 1500 mA cm-2. Moreover, the MnO-CoP/NF electrode demonstrates superior durability and an ultralow voltage of 1.76 V at 500 mA cm-2, outperforming that of a commercial RuO2||Pt/C electrode. This work sheds light on the design of metallic heterostructures with optimized interfacial electronic structures and a high abundance of active sites for practical industrial water splitting applications.
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Affiliation(s)
- Yan Dong
- College of Chemistry and Chemical Engineering, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
| | - Zhiping Deng
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
| | - Hao Zhang
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
| | - Guangyi Liu
- College of Chemistry and Chemical Engineering, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
| | - Xiaolei Wang
- Department of Chemical and Materials Engineering, University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
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17
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Zhang Y, Wang R, Zhu L, Li X, Sun C, Liu H, Zhu L, Wang K. Carbon Quantum Dots-Doped Ni 3Se 4/Co 9Se 8/Fe 3O 4 Multilayer Nanosheets Prepared Using the One-Step Solvothermal Method to Boost Electrocatalytic Oxygen Evolution. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5115. [PMID: 37512388 PMCID: PMC10383042 DOI: 10.3390/ma16145115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/10/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
Oxygen evolution reaction is a momentous part of electrochemical energy storage and conversion devices such as rechargeable metal-air batteries. It is particularly urgent to develop low-cost and efficient electrocatalysts for oxygen evolution reactions. As a potential substitute for noble metal electrocatalysts, transition metal selenides still prove challenging in improving the activity of oxygen evolution reaction and research into reaction intermediates. In this study, a simple one-step solvothermal method was used to prepare a polymetallic compound carbon matrix composite (Co9Se8/Ni3Se4/Fe3O4@C) with a multilayered nanosheets structure. It exhibited good OER activity in an alkaline electrolyte solution, with an overpotential of 268 mV at 10 mA/cm2. In addition, this catalyst also showed excellent performance in the 24 h stability test. The composite presents a multi-layer sheet structure, which effectively improves the contact between the active site and the electrolyte. The selenide formed by Ni and Co has a synergistic effect, and Fe3O4 and Co9Se8 form a heterojunction structure which can effectively improve the reaction activity by initiating the electronic coupling effect through the interface modification. In addition, carbon quantum dots have rich heteroatoms and electron transferability, which improves the electrochemical properties of the composites. This work provides a new strategy for the preparation of highly efficient OER electrocatalysts utilizing the multi-metal synergistic effect.
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Affiliation(s)
- Yao Zhang
- 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
- Key Laboratory of New Metallic Functional Materials and Advanced Surface Engineering in Universities of Shandong, School of Mechanical and Electronic Engineering, Qingdao Binhai University, Qingdao 266555, China
| | - Runze Wang
- 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
| | - Longqi 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
| | - Xu Li
- Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong 643000, China
| | - Caixia Sun
- Key Laboratory of New Metallic Functional Materials and Advanced Surface Engineering in Universities of Shandong, School of Mechanical and Electronic Engineering, Qingdao Binhai University, Qingdao 266555, China
| | - Haizhen Liu
- MOE Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Lei Zhu
- College of Basic Medical, Qingdao Binhai University, Qingdao 266555, China
| | - Kuikui Wang
- 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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18
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Zheng X, Shi X, Ning H, Yang R, Lu B, Luo Q, Mao S, Xi L, Wang Y. Tailoring a local acid-like microenvironment for efficient neutral hydrogen evolution. Nat Commun 2023; 14:4209. [PMID: 37452036 PMCID: PMC10349089 DOI: 10.1038/s41467-023-39963-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023] Open
Abstract
Electrochemical hydrogen evolution reaction in neutral media is listed as the most difficult challenges of energy catalysis due to the sluggish kinetics. Herein, the Ir-HxWO3 catalyst is readily synthesized and exhibits enhanced performance for neutral hydrogen evolution reaction. HxWO3 support is functioned as proton sponge to create a local acid-like microenvironment around Ir metal sites by spontaneous injection of protons to WO3, as evidenced by spectroscopy and electrochemical analysis. Rationalize revitalized lattice-hydrogen species located in the interface are coupled with Had atoms on metallic Ir surfaces via thermodynamically favorable Volmer-Tafel steps, and thereby a fast kinetics. Elaborated Ir-HxWO3 demonstrates acid-like activity with a low overpotential of 20 mV at 10 mA cm-2 and low Tafel slope of 28 mV dec-1, which are even comparable to those in acidic environment. The concept exemplified in this work offer the possibilities for tailoring local reaction microenvironment to regulate catalytic activity and pathway.
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Affiliation(s)
- Xiaozhong Zheng
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Xiaoyun Shi
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Honghui Ning
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Rui Yang
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Bing Lu
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Qian Luo
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Shanjun Mao
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Lingling Xi
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China
| | - Yong Wang
- Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, 310028, Hangzhou, P. R. China.
- College of Chemistry and Molecular Engineering, Zhengzhou University, 450001, Zhengzhou, China.
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19
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Luo Y, Wu S, Wang P, Ranganathan H, Shi Z. Interface engineering of Ni 2P/MoO x decorated NiFeP nanosheets for enhanced alkaline hydrogen evolution reaction at high current densities. J Colloid Interface Sci 2023; 648:551-557. [PMID: 37307611 DOI: 10.1016/j.jcis.2023.05.163] [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: 02/14/2023] [Revised: 05/21/2023] [Accepted: 05/26/2023] [Indexed: 06/14/2023]
Abstract
The rational design of high-performance non-noble metal electrocatalysts at large current densities is important for the development of sustainable energy conversion devices such as alkaline water electrolyzers. However, improving the intrinsic activity of those non-noble metal electrocatalysts remains a great challenge. Therefore, Ni2P/MoOx decorated three-dimensional (3D) NiFeP nanosheets (NiFeP@Ni2P/MoOx) with abundant interfaces were synthesized using facile hydrothermal and phosphorization methods. NiFeP@Ni2P/MoOx exhibits excellent electrocatalytic activity for hydrogen evolution reaction (HER) at a high current density of -1000 mA cm-2 with a low overpotential of 390 mV. Surprisingly, it can operate steadily at a large current density of -500 mA cm-2 for 300 h, indicating its long-term durability under high current densities. The boosted electrocatalytic activity and stability can be ascribed to the as-fabricated heterostructures via interface engineering, leading to modifying the electronic structure, improving the active area, and enhancing the stability. Besides, the 3D nanostructure is also beneficial for exposing abundant accessible active sites. Therefore, this research proposes a considerable route for fabricating non-noble metal electrocatalysts by interface engineering and 3D nanostructure applied in large-scale hydrogen production facilities.
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Affiliation(s)
- Yuanzhi Luo
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Sisi Wu
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Pan Wang
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, PR China; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, PR China.
| | - Hariprasad Ranganathan
- Institut National de la Recherche Scientifique (INRS), ́Energie Mat́eriaux T́eĺecommunications Research Centre, Varennes, Qúebec J3X 1P7, Canada
| | - Zhicong Shi
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, PR China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, PR China.
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20
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Guo C, Chen Q, Zhong J, Peng W, Li Y, Zhang F, Fan X. Constructing Amorphous–Crystalline Interfaces of Nickel–Iron Phosphides/Oxides for Oxygen Evolution Reaction. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Affiliation(s)
- Caixia Guo
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Qiming Chen
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Jiayi Zhong
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Wenchao Peng
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Yang Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Fengbao Zhang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China
- Institute of Shaoxing, Tianjin University, Zhejiang 312300, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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21
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Liu D, Wu Z, Liu J, Gu H, Li Y, Li X, Liu S, Liu S, Zhang J. Heteroatom Doped Amorphous/Crystalline Ruthenium Oxide Nanocages as a Remarkable Bifunctional Electrocatalyst for Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207235. [PMID: 36650994 DOI: 10.1002/smll.202207235] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/10/2022] [Indexed: 06/17/2023]
Abstract
Developing robust and highly active bifunctional electrocatalysts for overall water splitting is critical for efficient sustainable energy conversion. Herein, heteroatom-doped amorphous/crystalline ruthenium oxide-based hollow nanocages (M-ZnRuOx (MCo, Ni, Fe)) through delicate control of composition and structure is reported. Among as-synthesized M-ZnRuOx nanocages, Co-ZnRuOx nanocages deliver an ultralow overpotential of 17 mV at 10 mA cm-2 and a small Tafel slope of 21.61 mV dec-1 for hydrogen evolution reaction (HER), surpassing the commercial Pt/C catalyst, which benefits from the synergistic coupling effect between electron regulation induced by Co doping and amorphous/crystalline heterophase structure. Moreover, the incorporation of Co prevents Ru from over-oxidation under oxygen evolution reaction (OER) operation, realizing the leap from a monofunctional to multifunctional electrocatalyst and then Co-ZnRuOx nanocages exhibit remarkable OER catalytic activity as well as overall water splitting performance. Combining theory calculations with spectroscopy analysis reveal that Co is not only the optimal active site, increasing the number of exposed active sites while also boosting the long-term durability of catalyst by modulating the electronic structure of Ru atoms. This work opens a considerable avenue to design highly active and durable Ru-based electrocatalysts.
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Affiliation(s)
- Dandan Liu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Zeyi Wu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Jiajia Liu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Hongfei Gu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - You Li
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xueyan Li
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Shan Liu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Shange Liu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Jiatao Zhang
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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22
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Devi Y, Huang PJ, Chen WT, Jhang RH, Chen CH. Roll-to-Roll Production of Electrocatalysts Achieving High-Current Alkaline Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9231-9239. [PMID: 36753291 PMCID: PMC9951216 DOI: 10.1021/acsami.2c19710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Scalable production of electrocatalysts capable of performing high-current water splitting is crucial to support green energy utilization. We adopted acidic redox-assisted deposition (ARD) to realize the continuous roll-to-roll fabrication of a strongly adherent cobalt manganese oxyhydroxide (CMOH) film on Ni foam under ambient conditions in water. The as-fabricated products show uniform CMOH coverage and oxygen evolution activities with dimensions as large as 5 m length by 0.25 m width. Also, we converted CMOH into a metallic form (denoted as CM) with the preserved high adhesion to serve as a high-current hydrogen evolution electrocatalyst. Our results reveal that the insufficient adhesion of powder forms electrocatalysts (i.e., Pt and RuO2 as benchmarks), even with the binder, at high-current electrolysis (>1000 mA) can be solved using the fabricated CM||CMOH cell. With an active area of 1 cm × 1 cm assembly in anion exchange membrane (AEM) electrolyzers, we observed the remarkable record of alkaline electrolysis stably at 5000 mA. This result established a new benchmark record on the high-current water splitting research.
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Affiliation(s)
- Yanita Devi
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Po-Jen Huang
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Wen-Tai Chen
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Ren-Huai Jhang
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Chun-Hu Chen
- Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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23
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Min K, Kim H, Ku B, Na R, Lee J, Baeck SH. Defect-rich Fe-doped Ni2P microflower with phosphorus vacancies as a high-performance electrocatalyst for oxygen evolution reaction. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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24
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Wang Z, Wang C, Ye L, Liu X, Xin L, Yang Y, Wang L, Hou W, Wen Y, Zhan T. MnO x Film-Coated NiFe-LDH Nanosheets on Ni Foam as Selective Oxygen Evolution Electrocatalysts for Alkaline Seawater Oxidation. Inorg Chem 2022; 61:15256-15265. [PMID: 36083871 DOI: 10.1021/acs.inorgchem.2c02579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Compared to freshwater electrolysis, seawater electrolysis to produce hydrogen is preferable and more promising, but this technology is plagued by the electrode's corrosion and oxidative reactions of the competitive Cl- ion on the anode. To develop efficient oxygen evolution reaction (OER) catalysts for seawater electrolysis, the ultrathin MnOx film-covered NiFe-layered double-hydroxide nanosheet array is directly assembled on Ni foam (MnOx/NiFe-LDH/NF) by hydrothermal and electrodeposition in turn. This catalyst demonstrates excellent OER-selective activity in alkaline saline electrolytes. In 1 M KOH/0.5 M NaCl and 1 M KOH/seawater electrolytes, MnOx/NiFe-LDH/NF exhibits lower overpotentials at 100 mA cm-2 (η100 values of 265 and 276 mV, respectively) and Tafel slopes (73 and 77 mV decade-1, respectively) than does the NiFe-LDH/NF electrode (η100 values of 298 and 327 mV and Tafel slopes of 91 and 140 mV decade-1, respectively). In alkaline saline solutions, the stability and durability of the former are also better than those of the latter. The good OER selectivity and catalytic performance are attributed to the MnOx overlayer that selectively blocks Cl- anions from approaching catalytic centers, and the good conductivity, fast kinetics, more oxygen vacancies, and abundant active sites of MnOx/NiFe-LDH/NF. The robust stability is due to the enhanced resistance for Cl- corrosion stemming from the MnOx protective film. Hence, MnOx/NiFe-LDH/NF can act as a promising OER electrocatalyst for alkalized natural seawater electrolysis.
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Affiliation(s)
- Zekun Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chao Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lin Ye
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xien Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Liantao Xin
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yuanyuan Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lei Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wanguo Hou
- Key Laboratory of Colloid & Interface Chemistry (Ministry of Education), Shandong University, Jinan 250100, China
| | - Yonghong Wen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Tianrong Zhan
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science (Ministry of Education), College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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25
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Li J, Zhang Q, Zhang J, Wu N, Liu G, Chen H, Yuan C, Liu X. Optimizing electronic structure of porous Ni/MoO 2 heterostructure to boost alkaline hydrogen evolution reaction. J Colloid Interface Sci 2022; 627:862-871. [PMID: 35901565 DOI: 10.1016/j.jcis.2022.07.118] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/24/2022]
Abstract
Heterostructure engineering is an efficient strategy to synergisticallyimprove electrocatalytic activity. In this work, Ni/MoO2 heterojunction nanorods with porous structure self-supported on nickel foam (NF) are elaborately designed through a facile solution-evaporationmethod followed by a thermal reduction process. Prominently, the optimal electrocatalyst Ni/MoO2@NF-E delivers an exceptionally low overpotential of 19 mV at the current density of 10 mA cm-2 and a small Tafel slope of 52.3 mV dec-1 toward the hydrogen evolution reaction (HER) in alkaline solution. Concurrently, Ni/MoO2@NF-E also maintains excellent stability after 120 h of electrolysis or 5000 cyclic voltammetry cycles. The experimental and density functional theory (DFT) results indicate that the enhanced HER performance of Ni/MoO2@NF-E should be ascribed to the porous structure in the Ni/MoO2 nanorods providing more active catalytic site, the moderate Gibbs free energy of hydrogen adsorption (ΔGH*), as well as strong synergistic effect between Ni and MoO2. This work provides an efficient route for developing HER electrocatalysts in alkaline media.
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Affiliation(s)
- Jin Li
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
| | - Qiman Zhang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
| | - Jian Zhang
- New Energy Technology Engineering Lab of Jiangsu Province, College of Science, Nanjing University of Posts & Telecommunications (NUPT), Nanjing 210023, PR China
| | - Naiteng Wu
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
| | - Guilong Liu
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
| | - Haipeng Chen
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
| | - Changzhou Yuan
- School of Materials Science & Engineering, University of Jinan, Jinan 250022 PR China
| | - Xianming Liu
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, PR China
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26
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Wang P, Luo Y, Zhang G, Chen Z, Ranganathan H, Sun S, Shi Z. Interface Engineering of Ni xS y@MnO xH y Nanorods to Efficiently Enhance Overall-Water-Splitting Activity and Stability. NANO-MICRO LETTERS 2022; 14:120. [PMID: 35505126 PMCID: PMC9065220 DOI: 10.1007/s40820-022-00860-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/06/2022] [Indexed: 05/08/2023]
Abstract
Three-dimensional (3D) core-shell heterostructured NixSy@MnOxHy nanorods grown on nickel foam (NixSy@MnOxHy/NF) were successfully fabricated via a simple hydrothermal reaction and a subsequent electrodeposition process. The fabricated NixSy@MnOxHy/NF shows outstanding bifunctional activity and stability for hydrogen evolution reaction and oxygen evolution reaction, as well as overall-water-splitting performance. The main origins are the interface engineering of NixSy@MnOxHy, the shell-protection characteristic of MnOxHy, and the 3D open nanorod structure, which remarkably endow the electrocatalyst with high activity and stability. Exploring highly active and stable transition metal-based bifunctional electrocatalysts has recently attracted extensive research interests for achieving high inherent activity, abundant exposed active sites, rapid mass transfer, and strong structure stability for overall water splitting. Herein, an interface engineering coupled with shell-protection strategy was applied to construct three-dimensional (3D) core-shell NixSy@MnOxHy heterostructure nanorods grown on nickel foam (NixSy@MnOxHy/NF) as a bifunctional electrocatalyst. NixSy@MnOxHy/NF was synthesized via a facile hydrothermal reaction followed by an electrodeposition process. The X-ray absorption fine structure spectra reveal that abundant Mn-S bonds connect the heterostructure interfaces of NixSy@MnOxHy, leading to a strong electronic interaction, which improves the intrinsic activities of hydrogen evolution reaction and oxygen evolution reaction (OER). Besides, as an efficient protective shell, the MnOxHy dramatically inhibits the electrochemical corrosion of the electrocatalyst at high current densities, which remarkably enhances the stability at high potentials. Furthermore, the 3D nanorod structure not only exposes enriched active sites, but also accelerates the electrolyte diffusion and bubble desorption. Therefore, NixSy@MnOxHy/NF exhibits exceptional bifunctional activity and stability for overall water splitting, with low overpotentials of 326 and 356 mV for OER at 100 and 500 mA cm-2, respectively, along with high stability of 150 h at 100 mA cm-2. Furthermore, for overall water splitting, it presents a low cell voltage of 1.529 V at 10 mA cm-2, accompanied by excellent stability at 100 mA cm-2 for 100 h. This work sheds a light on exploring highly active and stable bifunctional electrocatalysts by the interface engineering coupled with shell-protection strategy.
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Affiliation(s)
- Pan Wang
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
- Énergie Matériaux Télécommunications Research Centre, Institut National de La Recherche Scientifique (INRS), Varennes, Québec, J3X 1P7, Canada
- The Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, People's Republic of China
| | - Yuanzhi Luo
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Gaixia Zhang
- Énergie Matériaux Télécommunications Research Centre, Institut National de La Recherche Scientifique (INRS), Varennes, Québec, J3X 1P7, Canada.
| | - Zhangsen Chen
- Énergie Matériaux Télécommunications Research Centre, Institut National de La Recherche Scientifique (INRS), Varennes, Québec, J3X 1P7, Canada
| | - Hariprasad Ranganathan
- Énergie Matériaux Télécommunications Research Centre, Institut National de La Recherche Scientifique (INRS), Varennes, Québec, J3X 1P7, Canada
| | - Shuhui Sun
- Énergie Matériaux Télécommunications Research Centre, Institut National de La Recherche Scientifique (INRS), Varennes, Québec, J3X 1P7, Canada.
| | - Zhicong Shi
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.
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