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Song J, Fan H, Wang Y, Li Q, Zhao J, Shao C, Li T, Jin Y, Liu S, Liu W. Multifunctional Iron Selenate Sheath of Fe-Based Anode Achieving High-Rate Capacity-Durability Combination of Aqueous Hybrid Energy Storage Devices. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309097. [PMID: 38183380 DOI: 10.1002/smll.202309097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/11/2023] [Indexed: 01/08/2024]
Abstract
The introduction of battery-type cathode has been commonly considered a preferred approach to boost the energy density of aqueous hybrid energy storage devices (AHESDs) in alkalic systems, but AHESDs with both high energy density and power density are rare due to the great challenge in designing battery-type anode materials with high rate and durability comparable to capacitive-type carbon anodes. In this paper, a well-hydrated iron selenate (FeSeO) sheath is constructed around FeOOH nanorods by a facile electrochemical activation, demonstrating the unique multifunction in fasting charge diffusion, promoting the dissociation of H2O, and inhibiting the irreversible phase transition of FeOOH to inert γ-Fe2O3, which endow the hydrated sheath coated Fe-based anodes with an impressive rate capability and superior durability. Thanks to the comprehensive performance of this Fe-based anode, the assembled AHESD delivered a high energy density of 117 Wh kg-1 with the extraordinary durability of almost 100% capacity retention after 40 000 cycles. Even at an ultrahigh power density of 27 000 W kg-1, an impressive energy density of 65 Wh kg-1 can be achieved, which rivals previously reported energy-storage devices.
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Affiliation(s)
- Jinyue Song
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Hongguang Fan
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Yanpeng Wang
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Qingping Li
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Jingwen Zhao
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China
| | - Chenchen Shao
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Tao Li
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Yongcheng Jin
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Shuang Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
| | - Wei Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao, Shandong, 266100, P. R. China
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Shiraishi Y, Akiyama S, Hiramatsu W, Adachi K, Ichikawa S, Hirai T. Sunlight-Driven Nitrate-to-Ammonia Reduction with Water by Iron Oxyhydroxide Photocatalysts. JACS AU 2024; 4:1863-1874. [PMID: 38818053 PMCID: PMC11134386 DOI: 10.1021/jacsau.4c00054] [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: 01/17/2024] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 06/01/2024]
Abstract
The photocatalytic reduction of harmful nitrates (NO3-) in strongly acidic wastewater to ammonia (NH3) under sunlight is crucial for the recycling of limited nitrogen resources. This study reports that a naturally occurring Cl--containing iron oxyhydroxide (akaganeite) powder with surface oxygen vacancies (β-FeOOH(Cl)-OVs) facilitates this transformation. Ultraviolet light irradiation of the catalyst suspended in a Cl--containing solution promoted quantitative NO3--to-NH3 reduction with water under ambient conditions. The photogenerated conduction band electrons promoted the reduction of NO3--to-NH3 over the OVs. The valence band holes promoted self-oxidation of Cl- as the direct electron donor and eliminated Cl- was compensated from the solution. Photodecomposition of the generated hypochlorous acid (HClO) produced O2, facilitating catalytic reduction of NO3--to-NH3 with water as the electron donor in the entire system. Simulated sunlight irradiation of the catalyst in a strongly acidic nitric acid (HNO3) solution (pH ∼ 1) containing Cl- stably generated NH3 with a solar-to-chemical conversion efficiency of ∼0.025%. This strategy paves the way for sustainable NH3 production from wastewater.
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Affiliation(s)
- Yasuhiro Shiraishi
- Research Center
for Solar Energy Chemistry and Division of Chemical Engineering, Graduate
School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
- Innovative Catalysis Science
Division, Institute for Open and Transdisciplinary Research Initiatives
(ICS-OTRI), Osaka University, Suita 565-0871, Japan
| | - Shotaro Akiyama
- Research Center
for Solar Energy Chemistry and Division of Chemical Engineering, Graduate
School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - Wataru Hiramatsu
- Research Center
for Solar Energy Chemistry and Division of Chemical Engineering, Graduate
School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - Kazutoshi Adachi
- Research Center
for Solar Energy Chemistry and Division of Chemical Engineering, Graduate
School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - Satoshi Ichikawa
- Research Center for Ultra-High
Voltage Electron Microscopy, Osaka University, Ibaraki 567-0047, Japan
| | - Takayuki Hirai
- Research Center
for Solar Energy Chemistry and Division of Chemical Engineering, Graduate
School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
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Yang D, Li X, Li X, Chen J, Zhang T, Lian T, Wang H. Design and synthesis of nano-iron oxyhydroxide-based molecularly imprinted electrochemical sensors for trace-level carbendazim detection in actual samples. Mikrochim Acta 2024; 191:163. [PMID: 38413431 DOI: 10.1007/s00604-024-06236-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/24/2024] [Indexed: 02/29/2024]
Abstract
Carbendazim (CBD) is widely used as a fungicide that acts as a pesticide in farming to prevent crop diseases. However, CBD can remain on crops for a long time. When consumed by humans and animals, it produces a range of toxic symptoms and poses a serious threat to their health. Therefore, the detection of CBD is necessary. Traditional assay strategies for CBD detection, although sensitive and practical, can hardly achieve fast, robust monitoring during food processing and daily life. Here, we designed a novel electrochemical sensor for CBD detection. In this method, iron oxyhydroxide nanomaterial (β-FeOOH) was first prepared by hydrothermal method. Then, a molecularly imprinted polymer (MIP) layer was electropolymerized on the surface using CBD as the template and resorcinol (RC) as the functional monomer. The synergistic interaction between β-FeOOH and MIP endows the MIP/β-FeOOH/CC-based electrochemical sensor with high specificity and sensitivity. Under optimal conditions, the MIP/β-FeOOH/CC-based sensor showed a wide linear range of 39 pM-80 nM for CBD and a detection limit as low as 25 pM. Therefore, the as-prepared sensor can be a practical and effective tool for pesticide residue detection.
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Affiliation(s)
- Dong Yang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
- Xi'an Key Laboratory of Advanced Performance Materials and Polymers, Shaanxi University of Science & Technology, Xi'an, 710021, China.
- Key Laboratory of Chemical Additives for China National Light Industry, Xi'an, 710021, China.
| | - Xuhua Li
- College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Xi'an Key Laboratory of Advanced Performance Materials and Polymers, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Key Laboratory of Chemical Additives for China National Light Industry, Xi'an, 710021, China
| | - Xiangyu Li
- College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Xi'an Key Laboratory of Advanced Performance Materials and Polymers, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Key Laboratory of Chemical Additives for China National Light Industry, Xi'an, 710021, China
| | - Jifan Chen
- College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Xi'an Key Laboratory of Advanced Performance Materials and Polymers, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Key Laboratory of Chemical Additives for China National Light Industry, Xi'an, 710021, China
| | - Ting Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Xi'an Key Laboratory of Advanced Performance Materials and Polymers, Shaanxi University of Science & Technology, Xi'an, 710021, China
- Key Laboratory of Chemical Additives for China National Light Industry, Xi'an, 710021, China
| | - Ting Lian
- School of Clinical Medicine, Xi'an Medical University, Xi'an, 710021, China
| | - Haihua Wang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, China.
- Xi'an Key Laboratory of Advanced Performance Materials and Polymers, Shaanxi University of Science & Technology, Xi'an, 710021, China.
- Key Laboratory of Chemical Additives for China National Light Industry, Xi'an, 710021, China.
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Hao J, Yan L, Zou X, Bai Y, Han Y, Zhu C, Zhou Y, Xiang B. Series of Halogen Engineered Ni(OH) 2 Nanosheet for Pseudocapacitive Energy Storage with High Energy Density. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300467. [PMID: 37127871 DOI: 10.1002/smll.202300467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/09/2023] [Indexed: 05/03/2023]
Abstract
Ni(OH)2 nanosheet, acting as a potential active material for supercapacitors, commonly suffers from sluggish reaction kinetics and low intrinsic conductivity, which results in suboptimal energy density and long cycle life. Herein, a convenient electrochemical halogen functionalization strategy is applied for the preparation of mono/bihalogen engineered Ni(OH)2 electrode materials. The theoretical calculations and experimental results found that thanks to the extraordinarily high electronegativity, optimal reversibility, electronic conductivity, and reaction kinetics could be achieved through F functionalization . However, benefiting from the largest ionic radius, INi(OH)2 contributes the best specific capacity and morphology transformation, which is a new finding that distinguishes it from previous reports in the literature. The exploration of the interaction effect of halogens (F, INi(OH)2 , F, BrNi(OH)2 , and Cl, INi(OH)2 ) manifests that F, INi(OH)2 delivers a higher specific capacity of 200.6 mAh g-1 and an excellent rate capability of 58.2% due to the weaker electrostatic repulsion, abundant defect structure, and large layer spacing. Moreover, the F, INi(OH)2 //FeOOH@NrGO device achieves a high energy density of 97.4 Wh kg-1 and an extremely high power density of 32426.7 W kg-1 , as well as good cycling stability. This work develops a pioneering tactic for designing energy storage materials to meet various demands.
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Affiliation(s)
- Jiangyu Hao
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Lijin Yan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Xuefeng Zou
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang, 550018, P. R. China
| | - Youcun Bai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Yuying Han
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Chong Zhu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
| | - Yang Zhou
- Analytical and Testing Center, Chongqing University, Chongqing, 400044, P. R. China
| | - Bin Xiang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, P. R. China
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5
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Zhao L, Li Y, Yu M, Peng Y, Ran F. Electrolyte-Wettability Issues and Challenges of Electrode Materials in Electrochemical Energy Storage, Energy Conversion, and Beyond. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300283. [PMID: 37085907 PMCID: PMC10265108 DOI: 10.1002/advs.202300283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/02/2023] [Indexed: 05/03/2023]
Abstract
The electrolyte-wettability of electrode materials in liquid electrolytes plays a crucial role in electrochemical energy storage, conversion systems, and beyond relied on interface electrochemical process. However, most electrode materials do not have satisfactory electrolyte-wettability for possibly electrochemical reaction. In the last 30 years, there are a lot of literature have directed at exploiting methods to improve electrolyte-wettability of electrodes, understanding basic electrolyte-wettability mechanisms of electrode materials, exploring the effect of electrolyte-wettability on its electrochemical energy storage, conversion, and beyond performance. This review systematically and comprehensively evaluates the effect of electrolyte-wettability on electrochemical energy storage performance of the electrode materials used in supercapacitors, metal ion batteries, and metal-based batteries, electrochemical energy conversion performance of the electrode materials used in fuel cells and electrochemical water splitting systems, as well as capacitive deionization performance of the electrode materials used in capacitive deionization systems. Finally, the challenges in approaches for improving electrolyte-wettability of electrode materials, characterization techniques of electrolyte-wettability, as well as electrolyte-wettability of electrode materials applied in special environment and other electrochemical systems with electrodes and liquid electrolytes, which gives future possible directions for constructing interesting electrolyte-wettability to meet the demand of high electrochemical performance, are also discussed.
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Affiliation(s)
- Lei Zhao
- State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous MetalsDepartment of Polymeric Materials Science and EngineeringSchool of Materials Science and EngineeringLanzhou University of TechnologyLanzhouGansu730050P. R. China
| | - Yuan Li
- State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous MetalsDepartment of Polymeric Materials Science and EngineeringSchool of Materials Science and EngineeringLanzhou University of TechnologyLanzhouGansu730050P. R. China
| | - Meimei Yu
- State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous MetalsDepartment of Polymeric Materials Science and EngineeringSchool of Materials Science and EngineeringLanzhou University of TechnologyLanzhouGansu730050P. R. China
| | - Yuanyou Peng
- State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous MetalsDepartment of Polymeric Materials Science and EngineeringSchool of Materials Science and EngineeringLanzhou University of TechnologyLanzhouGansu730050P. R. China
| | - Fen Ran
- State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous MetalsDepartment of Polymeric Materials Science and EngineeringSchool of Materials Science and EngineeringLanzhou University of TechnologyLanzhouGansu730050P. R. China
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6
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Liu W, Zhao Q, Wang Y, Chen Y, Chen L. "Two Birds with One Stone": F Doping Ni-Co Hydroxide as High-Performance Cathode Material for Aqueous Zn Batteries. NANOMATERIALS 2022; 12:nano12101780. [PMID: 35631003 PMCID: PMC9144373 DOI: 10.3390/nano12101780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 11/30/2022]
Abstract
Cathode materials have impeded the development of aqueous Zn batteries (AZBs) for a long time due to their low capacity and poor cycling stability. Here, a “two birds with one stone” strategy is devised to optimize the Ni–Co hydroxide cathode material (NCH) for AZBs, which plays an essential role in both composition adjustment and morphology majorization. The F-doped Ni–Co hydroxide (FNCH) exhibits a unique nanoarray structure consisting of the 2D flake-like unit, furnishing abundant active sites for the redox reaction. A series of analyses prove that FNCH delivers improved electrical conductivity and enhanced electrochemical activity. Contributing to the unique morphology and adjusted characteristics, FNCH presents a higher discharge-specific capacity, more advantageous rate capability and competitive cycling stability than NCH. As a result, an aqueous Zn battery assembled with a FNCH cathode and Zn anode exhibits a high capacity of 0.23 mAh cm−2 at 1 mA cm−2, and retains 0.10 mAh cm−2 at 10 mA cm−2. More importantly, the FNCH–Zn battery demonstrates no capacity decay after 3000 cycles with a conspicuous capacity of 0.15 mAh cm−2 at 8 mA cm−2, indicating a superior cycling performance. This work provides a facile approach to develop high-performance cathodes for aqueous Zn batteries.
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Ye W, Wang H, Shen J, Khan S, Zhong Y, Ning J, Hu Y. Halogen-based functionalized chemistry engineering for high-performance supercapacitors. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Hao J, Li T, Yan L, Liang M, Deng Q, Zou X, Hu Q, Bai Y, Zhou Y, Xiang B. Morphology transition of FeOOH induced by N-doped graphene for excellent pseudocapacitive energy storage. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139676] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Pavithra S, Keerthana SP, Yuvakumar R, Senthil Kumar P, Rajesh S, Vidhya B, Sakunthala A. Preparation of β-FeOOH by ultrasound assisted precipitation route for aqueous supercapacitor applications. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1988978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- S. Pavithra
- Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
| | - S. P. Keerthana
- Department of Physics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - R. Yuvakumar
- Department of Physics, Alagappa University, Karaikudi, Tamil Nadu, India
| | - P. Senthil Kumar
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, ROC
| | - S. Rajesh
- Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
| | - B. Vidhya
- Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
| | - A. Sakunthala
- Department of Applied Physics, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
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10
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Zhang A, Liang Y, Zhang H, Geng Z, Zeng J. Doping regulation in transition metal compounds for electrocatalysis. Chem Soc Rev 2021; 50:9817-9844. [PMID: 34308950 DOI: 10.1039/d1cs00330e] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In electrocatalysis, doping regulation has been considered as an effective method to modulate the active sites of catalysts, providing a powerful means for creating a large variety of highly efficient catalysts for various reactions. Of particular interest, there has been growing research concerning the doping of two-dimensional transition-metal compounds (TMCs) to optimize their electrocatalytic performance. Despite the previous achievements, mechanistic insights of doping regulation in TMCs for electrocatalysis are still lacking. Herein, we provide a systematic overview of doping regulation in TMCs in terms of background, preparation, impacts on physicochemical properties, and typical applications including the hydrogen evolution reaction, oxygen evolution reaction, oxygen reduction reaction, CO2 reduction reaction, and N2 reduction reaction. Notably, we bridge the understanding between the doping regulation of catalysts and their catalytic activities via focusing on the physicochemical properties of catalysts from the aspects of vacancy concentrations, phase transformation, surface wettability, electrical conductivity, electronic band structure, local charge distribution, tunable adsorption strength, and multiple adsorption configurations. We also discuss the existing challenges and future perspectives in this promising field.
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Affiliation(s)
- An Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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11
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He S, Guo F, Yang Q, Mi H, Li J, Yang N, Qiu J. Design and Fabrication of Hierarchical NiCoP-MOF Heterostructure with Enhanced Pseudocapacitive Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100353. [PMID: 33861511 DOI: 10.1002/smll.202100353] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Metal-organic framework (MOF)-derived heterostructures possessing the merits of each component are thought to display the enhanced energy storage performance due to their synergistic effect. Herein, a functional heterostructure (NiCoP-MOF) composed of nickel/cobalt-MOF (NiCo-MOF) and phosphide (NiCoP) is designed and fabricated via the localized phosphorization of unusual lamellar brick-stacked NiCo-MOF assemblies obtained by a hydrothermal method. The experimental and computational analyses reveal that such-fabricated heterostructures possess the modulated electronic structure, abundant active sites, and hybrid crystalline feature, which is kinetically beneficial for fast electron/ion transport to enhance the charge storage capability. Examined as the supercapacitor electrode, the obtained NiCoP-MOF compared to the NiCo-MOF delivers a high capacity of 728 C g-1 (1.82 C cm-2 ) at 1 A g-1 with a high capacity retention of 430 C g-1 (1.08 C cm-2 ) when increasing the current density to 20 A g-1 . Importantly, the assembled solid-state NiCoP-MOF-based hybrid supercapacitor displays superior properties regarding the capacity (226.3 C g-1 ), energy density (50.3 Wh kg-1 ), and durability (≈100% capacity retention over 10 000 cycles). This in situ heterogenization approach sheds light on the electronic structure modulation while maintaining the well-defined porosity and morphology, holding promise for designing MOF-based derivatives for high performance energy storage devices.
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Affiliation(s)
- Shixue He
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi, 830046, China
| | - Fengjiao Guo
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi, 830046, China
| | - Qi Yang
- China State Key Laboratory of Chemical Resource Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hongyu Mi
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi, 830046, China
| | - Jingde Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, Paul-Bonatz Str. 9-11, Siegen, 57076, Germany
| | - Jieshan Qiu
- China State Key Laboratory of Chemical Resource Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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Wang Z, Qu G, Wang C, Zhang X, Xiang G, Hou P, Xu X. Modified Co 4N by B-doping for high-performance hybrid supercapacitors. NANOSCALE 2020; 12:18400-18408. [PMID: 32941573 DOI: 10.1039/d0nr04043f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
High-performance energy storage systems are becoming essential to cope with the possible energy crisis in the future. Herein, unique hierarchical B-Co4N have been reasonably designed and synthesized on Ni foam (NF) via a typical chemical reduction strategy. The successful realization of B-doping engineering effectively facilitates ion and electron transport, adding the electrochemically reactive sites, which endow the B-Co4N-20/NF electrode with high specific capacity (817.9 C g-1 at 1 A g-1), excellent rate capability (maintained about 90.9% at 10 A g-1) and cycling stability (about 93.06% retention of the initial capacity after 5000 cycles). The corresponding hybrid supercapacitor assembled with B-Co4N-20/NF electrodes has an energy density of 25.85 W h kg-1 at the power density of 800.2 W kg-1 and a long cycle life (98.59% retention ratio after 5000 cycles). These remarkable properties indicate that the doping of heteroatom and the construction of hierarchical structure will provide a favorable reference for the performance promotion of next-generation energy storage devices.
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Affiliation(s)
- Zonghua Wang
- School of Physics and Technology, University of Jinan, Shandong 250022, P.R. China.
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