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Chen X, Kong Y, Yin H, Yang X, Zhao Q, Xiao D, Wang Z, Zhang Y, Xue Q. Unveiling the Enhancement of Electrocatalytic Oxygen Evolution Activity in Ru-Fe 2O 3/CoS Heterojunction Catalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403427. [PMID: 39076054 DOI: 10.1002/smll.202403427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 07/19/2024] [Indexed: 07/31/2024]
Abstract
The development of highly efficient electrocatalysts for the sluggish anodic oxygen evolution reaction (OER) is crucial to meet the practical demand for water splitting. In this study, an effective approach is proposed that simultaneously enhances interfacial interaction and catalytic activity by modifying Fe2O3/CoS heterojunction using Ru doping strategy to construct an efficient electrocatalytic oxygen evolution catalyst. The unique morphology of Ru doped Fe2O3 (Ru-Fe2O3) nanoring decorated by CoS nanoparticles ensures a large active surface area and a high number of active sites. The designed Ru-Fe2O3/CoS catalyst achieves a low OER overpotential (264 mV) at 10 mA cm-2 and demonstrates exceptional stability even at high current density of 100 mA cm-2, maintaining its performance for an impressive duration of 90 h. The catalytic performance of this Ru-Fe2O3/CoS catalyst surpasses that of other iron-based oxide catalysts and even outperforms the state-of-the-art RuO2. Density functional theory (DFT) calculation as well as experimental in situ characterization confirm that the introduction of Ru atoms can enhance the interfacial electron interaction, accelerating the electron transfer, and serve as highly active sites reducing the energy barrier for rate determination step. This work provides an efficient strategy to reveal the enhancement of electrocatalytic oxygen evolution activity of heterojunction catalysts by doping engineering.
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Affiliation(s)
- Xue Chen
- School of Physics and Physical Engineering, Qufu Normal University, Qufu, 273165, China
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Yilin Kong
- School of Physics and Physical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Hongfei Yin
- School of Physics and Physical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Xiaoyong Yang
- School of Physics and Physical Engineering, Qufu Normal University, Qufu, 273165, China
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, 75120, Sweden
| | - Qiuyu Zhao
- School of Physics and Physical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Dongdong Xiao
- Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhili Wang
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Yongzheng Zhang
- School of Physics and Physical Engineering, Qufu Normal University, Qufu, 273165, China
- Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - Qikun Xue
- Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
- Department of physics, Southern University of Science and Technology, Shenzhen, 518055, China
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2
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Lv C, Chen L, Bai J, Ruo H, Pan Y, Xu S, Chen J, Zhang D, Guo C. Ni-Co hexacyanoferrate hollow nanoprism with CN vacancy for electrocatalytic benzyl alcohol oxidation. Chem Commun (Camb) 2024; 60:5952-5955. [PMID: 38764428 DOI: 10.1039/d4cc01606h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
An innovative method to improve the oxidation efficiency of benzyl alcohol utilizes Ni-Co hexacyanoferrate hollow nanoprisms. Synthesized via a gentle self-sacrificial template method, this catalyst exhibits substantial catalytic activity and selectivity towards benzyl alcohol oxidation, facilitated by the strategic incorporation of Co to modulate CN vacancy density. Impressively, it achieves a current density of 10 mA cm-2 at 1.33 V and a remarkable 98% efficiency in benzyl alcohol conversion at 1.4 V.
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Affiliation(s)
- Chenghang Lv
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Liang Chen
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Jingjing Bai
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Hongyu Ruo
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Yanlong Pan
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Shoudong Xu
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Jiaqi Chen
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Ding Zhang
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Chunli Guo
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
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Kim NI, Lee J, Jin S, Park J, Jeong JY, Lee J, Kim Y, Kim C, Choi SM. Synergistic Effects in LaNiO 3 Perovskites between Nickel and Iron Heterostructures for Improving Durability in Oxygen Evolution Reaction for AEMWE. SMALL METHODS 2024:e2400284. [PMID: 38651527 DOI: 10.1002/smtd.202400284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/09/2024] [Indexed: 04/25/2024]
Abstract
Perovskite materials that aren't stable during the oxygen evolution reaction (OER) are unsuitable for anion-exchange membrane water electrolyzers (AEMWE). But through manipulating their electronic structures, their performance can further increase. Among the first-row transition metals, nickel and iron are widely recognized as prominent electrocatalysts; thus, the researchers are looking into how combining them can improve the OER. Recent research has actively explored the design and study of heterostructures in this field, showcasing the dynamic exploration of innovative catalyst configurations. In this study, a heterostructure is used to manipulate the electronic structure of LaNiO3 (LNO) to improve both OER properties and durability. Through adsorbing iron onto the LNO (LNO@Fe) as γ iron oxyhydroxide (γ-FeOOH), the binding energy of nickel in the LNO exhibited negative shifts, inferring nickel movement toward the metallic state. Consequently, the electrochemical properties of LNO@Fe are further improved. LNO@Fe showed excellent performance (1.98 A cm-2, 1 m KOH, 50 °C at 1.85 V) with 84.1% cell efficiency in AEMWE single cells, demonstrating great improvement relative to LNO. The degradation for the 850 h durability analysis of LNO@Fe is ≈68 mV kh-1, which is ≈58 times less than that of LNO.
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Affiliation(s)
- Nam In Kim
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
- Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Jaehun Lee
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Song Jin
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Junyoung Park
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Jae-Yeop Jeong
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Jooyoung Lee
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Yangdo Kim
- Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Chiho Kim
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Sung Mook Choi
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
- Advanced Materials Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
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Song J, Huang L, Yang G, Liu T, Liu S, Cong G, Huang Y, Liu Z, Gao X, Geng L. Regulating Grind-Induced Lattice Distortion for Nickel-Rich Cathodes by Annealing. SMALL METHODS 2024; 8:e2301400. [PMID: 38009762 DOI: 10.1002/smtd.202301400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Indexed: 11/29/2023]
Abstract
The commercialization of high-performance nickel-rich cathodes always awaits a cost-effective, environmentally friendly, and large-scale preparation method. Despite a grinding process normally adopted in the synthesis of the nickel-rich cathodes, lattice distortion, rough surface, and sharp edge transformation inevitably occurr in the resultant samples. In this work, an additional annealing process is proposed that aims at regulating lattice distortion as well as achieving round and smoother morphologies without any structural or elemental modifications. Such a structural enhancement is favored for improved lithium diffusion and electrochemical stability during cycling. Consequently, the annealed cathodes demonstrate a considerable enhancement in capacity retention, escalating from 68.7% to 91.9% after 100 cycles at 1 C. Additionally, the specific capacity is significantly increased from 64 to 142 mAh g-1 at 5 C when compared to the unannealed cathodes. This work offers a straightforward and effective approach for reinforcing the electrochemical properties of nickel-rich cathodes.
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Affiliation(s)
- Jinpeng Song
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
| | - Lujun Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
- Stake Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Guobo Yang
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
| | - Tiefeng Liu
- College of Chemical and Biological Engineering, Zhejiang University, Zhejiang, 310058, P. R. China
| | - Shaoshuai Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
| | - Guanghui Cong
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
| | - Yating Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
| | - Zheyuan Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
| | - Xiang Gao
- Center for High Pressure Science & Technology Advanced Research, Beijing, 100193, P. R. China
| | - Lin Geng
- School of Materials Science and Engineering, Harbin Institute of Technology, BOX 433, Harbin, 150001, P. R. China
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Li L, Wen Y, Han G, Kong F, Du L, Ma Y, Zuo P, Du C, Yin G. Architecting FeN x on High Graphitization Carbon for High-Performance Oxygen Reduction by Regulating d-Band Center. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300758. [PMID: 36866497 DOI: 10.1002/smll.202300758] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/14/2023] [Indexed: 06/02/2023]
Abstract
Fe single atoms and N co-doped carbon nanomaterials (Fe-N-C) are the most promising oxygen reduction reaction (ORR) catalysts to replace platinum group metals. However, high-activity Fe single-atom catalysts suffer from poor stability owing to the low graphitization degree. Here, an effective phase-transition strategy is reported to enhance the stability of Fe-N-C catalysts by inducing increased degree of graphitization and incorporation of Fe nanoparticles encapsulated by graphitic carbon layer without sacrificing activity. Remarkably, the resulted Fe@Fe-N-C catalysts achieved excellent ORR activity (E1/2 = 0.829 V) and stability (19 mV loss after 30K cycles) in acid media. Density functional theory (DFT) calculations agree with experimental phenomena that additional Fe nanoparticles not only favor to the activation of O2 by tailoring d-band center position but also inhibit the demetallization of Fe active center from FeN4 sites. This work provides a new insight into the rational design of highly efficient and durable Fe-N-C catalysts for ORR.
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Affiliation(s)
- Lingfeng Li
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Yandi Wen
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Guokang Han
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Fanpeng Kong
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, P. R. China
| | - Lei Du
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Yulin Ma
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Pengjian Zuo
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Chunyu Du
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Geping Yin
- MIIT Key Laboratory of Critical Materials, Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150090, P. R. China
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6
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Wu H, Wang K, Li M, Wang Y, Zhu Z, Du Z, Ai W, He S, Yuan R, Wang B, He P, Wu J. Double-Walled NiTeSe-NiSe 2 Nanotubes Anode for Stable and High-Rate Sodium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300162. [PMID: 36866502 DOI: 10.1002/smll.202300162] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/09/2023] [Indexed: 06/02/2023]
Abstract
Electrodes made of composites with heterogeneous structure hold great potential for boosting ionic and charge transfer and accelerating electrochemical reaction kinetics. Herein, hierarchical and porous double-walled NiTeSe-NiSe2 nanotubes are synthesized by a hydrothermal process assisted in situ selenization. Impressively, the nanotubes have abundant pores and multiple active sites, which shorten the ion diffusion length, decrease Na+ diffusion barriers, and increase the capacitance contribution ratio of the material at a high rate. Consequently, the anode shows a satisfactory initial capacity (582.5 mA h g-1 at 0.5 A g-1 ), a high-rate capability, and long cycling stability (1400 cycles, 398.6 mAh g-1 at 10 A g-1 , 90.5% capacity retention). Moreover, the sodiation process of NiTeSe-NiSe2 double-walled nanotubes and underlying mechanism of the enhanced performance are revealed by in situ and ex situ transmission electron microscopy and theoretical calculations.
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Affiliation(s)
- Han Wu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Ke Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Mengjun Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Yutao Wang
- Nanostructure Research Center, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Zhu Zhu
- Nanostructure Research Center, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
| | - Zhuzhu Du
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Wei Ai
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Song He
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Ruilong Yuan
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Binwu Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Pan He
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, P. R. China
- Key laboratory of Flexible Electronics of Zhejiang Province, Ningbo institute of Northwestern Polytechnical University, 218 Qingyi Road, Ningbo, 315103, P. R. China
| | - Jinsong Wu
- Nanostructure Research Center, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, P. R. China
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Zhao Q, Lu Z, Xie J, Hu J, Cao Y, Hao A. In Situ Construction of MnO 2-Co 3O 4 Nanosheet Heterojunctions on Co@NCNT Surfaces for Oxygen Evolution. Inorg Chem 2023; 62:3532-3540. [PMID: 36791254 DOI: 10.1021/acs.inorgchem.2c03955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Electrocatalytic water splitting is still circuitous and controversial because of the lack of highly active electrocatalysts to decrease the overpotential. Herein, we report a feasible method for constructing heterojunctions of MnO2-Co3O4 nanosheets on Co@NCNT support surfaces (MnO2-Co3O4/Co@NCNT) by spontaneous redox reactions. Experimental results indicate that Co embedded in Co@NCNT can be used as the carbon support and anchoring sites for heterojunctions, thus exposing a large number of active sites, adjusting the surface electronic structure, changing the OER rate-determining step of the catalyst, and reducing the reaction energy barrier. Besides, the in situ formation of MnO2-Co3O4 nanosheets on Co@NCNT inhibits the loss and aggregation of the catalyst, leading to robust structural stability. Therefore, the synergistic effects of these factors provide multi-functional active sites to enhance the intrinsic activity and achieve maximum catalytic performances. To deliver a current density of 10 mA cm-2, the catalyst of MnO2-Co3O4/Co@NCNT achieves an overpotential (η) of 303 mV in 1.0 M KOH media for OER. This simple redox strategy can be easily extended to prepare other ultrathin transition-metal oxide heterojunctions, which could be applied not only for water splitting but also for other energy conversion and storage technologies.
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Affiliation(s)
- Qiaoling Zhao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi, 830017 Xinjiang, PR China
| | - Zhenjiang Lu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi, 830017 Xinjiang, PR China
| | - Jing Xie
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi, 830017 Xinjiang, PR China
| | - Jindou Hu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi, 830017 Xinjiang, PR China
| | - Yali Cao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi, 830017 Xinjiang, PR China
| | - Aize Hao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources; Key Laboratory of Advanced Functional Materials, Autonomous Region; Institute of Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi, 830017 Xinjiang, PR China
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8
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Feng W, Wen X, Wang Y, Song L, Li X, Du R, Yang J, Li H, He J, Shi J. Interfacial Coupling SnSe 2 /SnSe Heterostructures as Long Cyclic Anodes of Lithium-Ion Battery. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204671. [PMID: 36398606 PMCID: PMC9839860 DOI: 10.1002/advs.202204671] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/30/2022] [Indexed: 06/16/2023]
Abstract
Tin selenide (SnSe2 ) is considered a promising anode of the lithium-ion battery because of its tunable interlayer space, abundant active sites, and high theoretical capacity. However, the low electronic conductivity and large volume variation during the charging/discharging processes inevitably result in inadequate specific capacity and inferior cyclic stability. Herein, a high-throughput wet chemical method to synthesize SnSe2 /SnSe heterostructures is designed and used as anodes of lithium-ion batteries. The hierarchical nanoflower morphology of such heterostructures buffers the volume expansion, while the built-in electric field and metallic feature increase the charge transport capability. As expected, the superb specific capacity (≈911.4 mAh g-1 at 0.1 A g-1 ), high-rate performance, and outstanding cyclic stability are obtained in the lithium-ion batteries composed of SnSe2 /SnSe anodes. More intriguingly, a reversible specific capacity (≈374.7 mAh g-1 at 2.5 A g-1 ) is maintained after 1000 cycles. The internal lithium storage mechanism is clarified by density functional theory (DFT) calculations and in situ characterizations. This work hereby provides a new paradigm for enhancing lithium-ion battery performances by constructing heterostructures.
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Affiliation(s)
- Wang Feng
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Xia Wen
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Yuzhu Wang
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Luying Song
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Xiaohui Li
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Ruofan Du
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Junbo Yang
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Hui Li
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
| | - Jun He
- Key Laboratory of Artificial Micro‐ and Nano‐structures of Ministry of EducationSchool of Physics and TechnologyWuhan UniversityWuhan430072P. R. China
| | - Jianping Shi
- The Institute for Advanced StudiesWuhan UniversityWuhan430072P. R. China
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9
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Surface reconstruction of Fe(III)/NiS nanotubes for generating high-performance oxygen-evolution catalyst. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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