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Zhao Y, Tang W, Liu W, Kong X, Zhang D, Luo H, Teng K, Liu R. Interfacial Engineering of Co 3 O 4 /Fe 2 O 3 Nano-Heterostructure Toward Superior Li-O 2 Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205532. [PMID: 36399646 DOI: 10.1002/smll.202205532] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/26/2022] [Indexed: 06/16/2023]
Abstract
A major issue with Li-O2 batteries is their slow oxygen reduction and evolution kinetics, necessitating catalysts with high catalytic activity to improve reaction kinetics and cycle stability. Herein, a nano-heterostructured catalyst composed of Co3 O4 and Fe2 O3 (Co3 O4 /Fe2 O3 ) with a porous rod morphology is achieved through an interfacial engineering strategy by constructing Fe2 O3 on the Co3 O4 surface, which can function as a high-performance cathode in order to efficiently encourage the oxygen reduction and evolution while also reduce the battery polarization during charging and discharging. The density functional theory (DFT) calculations show the differences in charge density at the interface of nano-heterostructures, demonstrating the occurrence of an electron transfer process in the interface region of Co3 O4 and Fe2 O3 , implying a strong electronic coupling transfer, and in turn changing the electronic structure of the Co3 O4 . This significantly reduces the adsorption energy of LiO2 intermediates, thereby effectively lowering the overpotential. The resultant Li-O2 battery has larger discharge specific capacity, lower overpotential for the efficient oxygen evolution/reduction, as well as good cycling stability of 280 cycles. This work demonstrates an effective method to fabricate the nano-heterostrucutred materials with enhanced catalytic efficiency for advanced energy applications.
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Affiliation(s)
- Yajun Zhao
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Wenhao Tang
- School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, P. R. China
| | - Wenhong Liu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Xianghua Kong
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Dawei Zhang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Hao Luo
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
- Intelligent Manufacturing Institute of Hefei University of Technology, Hefei, Anhui, 230051, China
| | - Kewei Teng
- School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, P. R. China
| | - Ruiping Liu
- School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, P. R. China
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Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co3O4 Composites with Different Co Content. NANOMATERIALS 2022; 12:nano12152523. [PMID: 35893491 PMCID: PMC9331854 DOI: 10.3390/nano12152523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023]
Abstract
The paper studies patterns of interaction of electroexplosive Co nanoparticles with air oxygen during heating. The characteristics of Co nanoparticles and composite Co/CoO/Co3O4 nanoparticles formed as a result of oxidation were studied using transmission electron microscopy, X-ray phase analysis, thermogravimetric analysis, differential scanning calorimetry, and vibrating sample magnetometry. It was established that nanoparticles with similar morphology in the form of hollow spheres with different content of Co, CoO, and Co3O4 can be produced by varying oxidation temperatures. The influence of the composition of composite nanoparticles on their magnetic characteristics is shown.
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Xu C, Yang X, Wen X, Wang YY, Sun Y, Xu B, Li C. Nitrogen-doped carbon encapsulating RuCo heterostructure for enhanced electrocatalytic overall water splitting. CrystEngComm 2022. [DOI: 10.1039/d2ce00528j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetically sluggish electrochemical water splitting reaction still faces great challenges, and the rational design of excellent electrocatalysts is the key to solving the problem. Herein, an etching and pyrolysis...
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4
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Zhang Y, Zhang S, Ma J, Huang A, Yuan M, Li Y, Sun G, Chen C, Nan C. Oxygen Vacancy-Rich RuO 2-Co 3O 4 Nanohybrids as Improved Electrocatalysts for Li-O 2 Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39239-39247. [PMID: 34375079 DOI: 10.1021/acsami.1c08720] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lithium oxygen (Li-O2) batteries have shown great potential as new energy-storage devices due to the high theoretical energy density. However, there are still substantial problems to be solved before practical application, including large overpotential, low energy efficiency, and poor cycle life. Herein, we have successfully synthesized a RuO2-Co3O4 nanohybrid with a rich oxygen vacancy and large specific surface area. The Li-O2 batteries based on the RuO2-Co3O4 nanohybrid shown obviously reduced overpotential and improved circulatory property, which can cycle stably for more than 100 cycles at a current density of 200 mA g-1. Experimental results and density function theory calculation prove that the introduction of RuO2 can increase oxygen vacancy concentration of Co3O4 and accelerate the charge transfer. Meanwhile, the hollow and porous structure leads to a large specific surface area about 104.5 m2 g-1, exposing more active sites. Due to the synergistic effect, the catalyst of the RuO2-Co3O4 nanohybrid can significantly reduce the adsorption energy of the LiO2 intermediate, thereby reducing the overpotential effectively.
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Affiliation(s)
- Yu Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
- Department of Chemistry, Tsinghua University, Beijing 10084, China
| | - Shuting Zhang
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jie Ma
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Aijian Huang
- Department of Chemistry, Tsinghua University, Beijing 10084, China
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Mengwei Yuan
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yufeng Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Genban Sun
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Chen Chen
- Department of Chemistry, Tsinghua University, Beijing 10084, China
| | - Caiyun Nan
- Beijing Key Laboratory of Energy Conversion and Storage Materials Institution, College of Chemistry, Beijing Normal University, Beijing 100875, China
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Cao D, Zheng L, Li Q, Zhang J, Dong Y, Yue J, Wang X, Bai Y, Tan G, Wu C. Crystal Phase-Controlled Modulation of Binary Transition Metal Oxides for Highly Reversible Li-O 2 Batteries. NANO LETTERS 2021; 21:5225-5232. [PMID: 34060314 DOI: 10.1021/acs.nanolett.1c01276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Reducing charge-discharge overpotential of transition metal oxide catalysts can eventually enhance the cell efficiency and cycle life of Li-O2 batteries. Here, we propose that crystal phase engineering of transition metal oxides could be an effective way to achieve the above purpose. We establish controllable crystal phase modulation of the binary MnxCo1-xO by adopting a cation regulation strategy. Systematic studies reveal an unprecedented relevancy between charge overpotential and crystal phase of MnxCo1-xO catalysts, whereas a dramatically reduced charge overpotential (0.48 V) via a rational optimization of Mn/Co molar ratio = 8/2 is achieved. Further computational studies indicate that the different morphologies of Li2O2 should be related to different electronic conductivity and binding of Li2O2 on crystal facets of MnxCo1-xO catalysts, finally leading to different charge overpotential. We anticipate that this specific crystal phase engineering would offer good technical support for developing high-performance transition metal oxide catalysts for advanced Li-O2 batteries.
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Affiliation(s)
- Dong Cao
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Lumin Zheng
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Qiaojun Li
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Junfan Zhang
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Ying Dong
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jiasheng Yue
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xinran Wang
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Ying Bai
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Guoqiang Tan
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
- Beijing Institute of Technology Chongqing Innovation Center, Chongqing 401120, China
| | - Chuan Wu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
- Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing 100081, China
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6
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Enhancing the Capacity and Stability by CoFe 2O 4 Modified g-C 3N 4 Composite for Lithium-Oxygen Batteries. NANOMATERIALS 2021; 11:nano11051088. [PMID: 33922335 PMCID: PMC8146125 DOI: 10.3390/nano11051088] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/09/2021] [Accepted: 04/19/2021] [Indexed: 11/16/2022]
Abstract
As society progresses, the task of developing new green energy brooks no delay. Li-O2 batteries have high theoretical capacity, but are difficult to put into practical use due to problems such as high overvoltage, low charge-discharge efficiency, poor rate, and cycle performance. The development of high-efficiency catalysts to effectively solve the shortcomings of Li-O2 batteries is of great significance to finding a solution for energy problems. Herein, we design CoFe2O4/g-C3N4 composites, and combine the advantages of the g-C3N4 material with the spinel-type metal oxide material. The flaky structure of g-C3N4 accelerates the transportation of oxygen and lithium ions and inhibits the accumulation of CoFe2O4 particles. The CoFe2O4 materials accelerate the decomposition of Li2O2 and reduce electrode polarization in the charge–discharge reaction. When CoFe2O4/g-C3N4 composites are used as catalysts in Li-O2 batteries, the battery has a better discharge specific capacity of 9550 mA h g−1 (catalyst mass), and the cycle stability of the battery has been improved, which is stable for 85 cycles.
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Sun Z, Liu Y, Ye W, Zhang J, Wang Y, Lin Y, Hou L, Wang MS, Yuan C. Unveiling Intrinsic Potassium Storage Behaviors of Hierarchical Nano Bi@N-Doped Carbon Nanocages Framework via In Situ Characterizations. Angew Chem Int Ed Engl 2021; 60:7180-7187. [PMID: 33372329 DOI: 10.1002/anie.202016082] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Indexed: 11/06/2022]
Abstract
Metallic bismuth has drawn attention as a promising alloying anode for advanced potassium ion batteries (PIBs). However, serious volume expansion/electrode pulverization and sluggish kinetics always lead to its inferior cycling and rate properties for practical applications. Therefore, advanced Bi-based anodes via structural/compositional optimization and sur-/interface design are needed. Herein, we develop a bottom-up avenue to fabricate nanoscale Bi encapsulated in a 3D N-doped carbon nanocages (Bi@N-CNCs) framework with a void space by using a novel Bi-based metal-organic framework as the precursor. With elaborate regulation in annealing temperatures, the optimized Bi@N-CNCs electrode exhibits large reversible capacities and long-duration cyclic stability at high rates when evaluated as competitive anodes for PIBs. Insights into the intrinsic K+ -storage processes of the Bi@N-CNCs anode are put forward from comprehensive in situ characterizations.
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Affiliation(s)
- Zehang Sun
- School of Materials Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Yang Liu
- School of Materials Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Weibin Ye
- State Key Lab of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Jinyang Zhang
- School of Materials Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Yuyan Wang
- School of Materials Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Linrui Hou
- School of Materials Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Ming-Sheng Wang
- State Key Lab of Physical Chemistry of Solid Surfaces, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Changzhou Yuan
- School of Materials Science & Engineering, University of Jinan, Jinan, 250022, P. R. China
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8
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Sun Z, Liu Y, Ye W, Zhang J, Wang Y, Lin Y, Hou L, Wang M, Yuan C. Unveiling Intrinsic Potassium Storage Behaviors of Hierarchical Nano Bi@N‐Doped Carbon Nanocages Framework via In Situ Characterizations. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016082] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zehang Sun
- School of Materials Science & Engineering University of Jinan Jinan 250022 P. R. China
| | - Yang Liu
- School of Materials Science & Engineering University of Jinan Jinan 250022 P. R. China
| | - Weibin Ye
- State Key Lab of Physical Chemistry of Solid Surfaces College of Materials Xiamen University Xiamen 361005 China
| | - Jinyang Zhang
- School of Materials Science & Engineering University of Jinan Jinan 250022 P. R. China
| | - Yuyan Wang
- School of Materials Science & Engineering University of Jinan Jinan 250022 P. R. China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 P. R. China
| | - Linrui Hou
- School of Materials Science & Engineering University of Jinan Jinan 250022 P. R. China
| | - Ming‐Sheng Wang
- State Key Lab of Physical Chemistry of Solid Surfaces College of Materials Xiamen University Xiamen 361005 China
| | - Changzhou Yuan
- School of Materials Science & Engineering University of Jinan Jinan 250022 P. R. China
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9
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Li G, Zheng K, Li W, He Y, Xu C. Ultralow Ru-Induced Bimetal Electrocatalysts with a Ru-Enriched and Mixed-Valence Surface Anchored on a Hollow Carbon Matrix for Oxygen Reduction and Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:51437-51447. [PMID: 33152235 DOI: 10.1021/acsami.0c14521] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Rational design of trifunctional electrocatalysts with robust efficiency used for oxygen reduction, oxygen evolution, and hydrogen evolution reactions (ORR, OER, and HER) is of significance to renewable energy conversion techniques, which remains a challenging issue. This study integrates dominant Co/Co3O4 with a small fraction of RuO2 and the CoRu alloy anchored on a hollow carbon matrix, originating from the novel Ru-doped hollow metal-organic framework (MOF) precursor, which is synthesized via tannic etching and ion exchange. Notably, the introduced ultralow Ru (1.28 wt %) not only generates new Ru-based species but also induces a Ru-enriched surface with abundant oxygen vacancies. Moreover, a suitable balance among different valencies of Co or Ru can be tuned by oxidation time, resulting in preferable Co2+ and Ru4+ species. Triggered by these unparalleled surface properties along with good conductivity, hollow structure, and the synergistic effect of multiple active sites, the resulting CoRu-O/A@hollow nitrogen-doped carbon (HNC) shows robust catalytic performance for ORR/OER/HER in an alkaline electrolyte. Typically, it exhibits a potential gap of 0.662 V for OER/ORR and enables an alkaline water electrolyzer with a cell voltage of 1.558 V at 10 mA cm-2. This work would serve as guidance for well construction of transition-metal-based trifunctional electrocatalysts by the MOF-assisted strategy or the modulation effects of low-content Ru.
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Affiliation(s)
- Guoning Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China
| | - Kaitian Zheng
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China
| | - Weisong Li
- School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou 221116, China
| | - Yongchao He
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China
| | - Chunjian Xu
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China
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10
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Wang Y, Lu Y, Cao Q, Fang W. A magnetic CoRu-CoO X nanocomposite efficiently hydrogenates furfural to furfuryl alcohol at ambient H 2 pressure in water. Chem Commun (Camb) 2020; 56:3765-3768. [PMID: 32129429 DOI: 10.1039/d0cc01039a] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A one-pot synthesized CoRu-CoOX nanocomposite was reported as a magnetically recoverable catalyst for selective hydrogenation of furfural to furfuryl alcohol in water at ambient H2 pressure.
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Affiliation(s)
- Yongxing Wang
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource - Ministry of Education, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Yunnan University, 2 North Cuihu Road, 650091 Kunming, China.
| | - Yaowei Lu
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource - Ministry of Education, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Yunnan University, 2 North Cuihu Road, 650091 Kunming, China.
| | - Qiue Cao
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource - Ministry of Education, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Yunnan University, 2 North Cuihu Road, 650091 Kunming, China. and National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, 650091 Kunming, China
| | - Wenhao Fang
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource - Ministry of Education, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Yunnan University, 2 North Cuihu Road, 650091 Kunming, China. and National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, 650091 Kunming, China
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11
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Ran Z, Shu C, Hou Z, Hei P, Yang T, Liang R, Li J, Long J. Phosphorus vacancies enriched Ni2P nanosheets as efficient electrocatalyst for high-performance Li–O2 batteries. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135795] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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