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He Y, Zhou W, Li D, Liang Y, Chao S, Zhao X, Zhang M, Xu J. Rare Earth Doping Engineering Tailoring Advanced Oxygen-Vacancy Co 3 O 4 with Tunable Structures for High-Efficiency Energy Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206956. [PMID: 36504322 DOI: 10.1002/smll.202206956] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Co3 O4 with high theoretical capacitance is a promising electrode material for high-end energy applications, yet the unexcited bulk electrochemical activity, low conductivity, and poor kinetics of Co3 O4 lead to unsatisfactory charge storage capacity. For boosting its energy storage capability, rare earth (RE)-doped Co3 O4 nanostructures with abundant oxygen vacancies are constructed by simple, economical, and universal chemical precipitation. By changing different types of RE (RE = La, Yb, Y, Ce, Er, Ho, Nd, Eu) as dopants, the RE-doped Co3 O4 nanostructures can be well transformed from large nanosheets to coiled tiny nanosheets and finally to ultrafine nanoparticles, meanwhile, their specific surface area, pore distribution, the ratio of Co2+ /Co3+ , oxygen vacancy content, crystalline phase, microstrain parameter, and the capacitance performance are regularly affected. Notably, Eu-doped Co3 O4 nanoparticles with good cycle stability show a maximum specific capacitance of 1021.3 F g-1 (90.78 mAh g-1 ) at 2 A g-1 , higher than 388 F g-1 (34.49 mAh g-1 ) of pristine Co3 O4 nanosheets. The assembling asymmetric supercapacitor delivers a high energy density of 48.23 Wh kg-1 at high power density of 1.2 kW kg-1 . These findings denote the significance and great potential of RE-doped Co3 O4 in the development of high-efficiency energy storage.
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Affiliation(s)
- Yao He
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Weiqiang Zhou
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Danqin Li
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Yanmei Liang
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Shixing Chao
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Xueqian Zhao
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Mingming Zhang
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Jingkun Xu
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
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Gu Y, Xu D, Chen S, You F, Hu C, Huang H, Chen J. In Situ Growth of MnO 2 Nanosheets on a Graphite Flake as an Effective Binder-Free Electrode for High-Performance Supercapacitors. ACS OMEGA 2022; 7:48320-48331. [PMID: 36591178 PMCID: PMC9798508 DOI: 10.1021/acsomega.2c06506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
In this work, manganese dioxide (MnO2) nanosheets in situ loaded on a high-purity graphite flake (GF) were prepared by one-step hydrothermal deposition. It was found that the specific capacitance value of a single MnO2/GF electrode was 882 F/g at a current density of 1.0 A/g in a KOH electrolyte, and the specific capacitance retention of the MnO2/GF electrode can reach about 90.1% after 5000 charge-discharge cycles at a current density of 10 A/g. Furthermore, a MnO2/GF∥MnO2/GF symmetric supercapacitor device was fabricated with two pieces of MnO2/GF electrodes and ordinary filter paper with a 1 M KOH/PVA gel electrolyte as a separator. The single symmetric device displayed a high energy density of 64.2 Wh/kg at a power density of 400 W/kg within an applied voltage of 1.6 V, and this value was superior to those of previously reported MnO2-based systems. A tandem device consisting of a five-series tandem device (the applied voltage of a single device was 0.7 V) and a three-series tandem device (the applied voltage of a single device was 1.6 V) was prepared to drive a red light-emitting diode (LED). These findings open up application prospects for MnO2-based composite electrode materials for high-performance supercapacitors.
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Affiliation(s)
- Yuanhang Gu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Dong Xu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Shaoyun Chen
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Feng You
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Chenglong Hu
- Key
Laboratory of Optoelectronic Chemical Materials and Devices, Ministry
of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan430056, P. R. China
| | - Huabo Huang
- Hubei
Key Laboratory of Plasma Chemistry and Advanced Materials, State Key
Laboratory of Advanced Technology for Materials Synthesis and Processing,
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P. R. China
| | - Jian Chen
- Instrumental
Analysis and Research Center, Sun Yat-sen
University, Guangzhou510275, P. R. China
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Rasheed S, Ali G, Kousar R, Raza MA, Kubra KT, Jan Iftikhar F. Synthesis and Electrochemical Performance Evaluation of La doped TiO2/reduced graphene oxide Nanocomposites for Supercapacitor Application. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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He Y, Zhou W, Xu J. Rare Earth-Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application. CHEMSUSCHEM 2022; 15:e202200469. [PMID: 35446482 DOI: 10.1002/cssc.202200469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Supercapacitors (SCs) can effectively alleviate problems such as energy shortage and serious greenhouse effect. The properties of electrode materials directly affect the performance of SCs. Rare earth (RE) is known as "modern industrial vitamins", and their functional materials have been listed as key strategic materials. In the past few years, the number of scientific reports on RE-based nanomaterials for SCs has increased rapidly, confirming that adding RE elements or compounds to the host electrode materials with various nanostructured morphologies can greatly enhance their electrochemical performance. Although RE-based nanomaterials have made rapid progress in SCs, there are very few works providing a comprehensive survey of this field. In view of this, a comprehensive overview of RE-based nanomaterials for SCs is provided here, including the preparation methods, nanostructure engineering, compounds, and composites, along with their capacitance performances. The structure-activity relationships are discussed and highlighted. Meanwhile, the future challenges and perspectives are also pointed out. This Review can not only provide guidance for the further development of SCs but also arouse great interest in RE-based nanomaterials in other research fields such as electrocatalysis, photovoltaic cells, and lithium batteries.
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Affiliation(s)
- Yao He
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Weiqiang Zhou
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
- Jiangxi Engineering Laboratory of Waterborne Coatings, Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
| | - Jingkun Xu
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang, 330013, P. R. China
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Wu Y, Lu G, Yue J, Luo D, Shi M, Cheng Z, kang X. Oxygen vacancies‐rich manganese oxide with flower‐like nanosheets for high performance supercapacitors. ELECTROANAL 2022. [DOI: 10.1002/elan.202200069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Li X, Chen H, Yang C, Li Y, Wei M. A new neodymium-phosphine compound for supercapacitors with long-term cycling stability. Chem Commun (Camb) 2021; 57:5933-5936. [PMID: 34013924 DOI: 10.1039/d1cc00650a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A new neodymium-phosphine compound (Nd-(Ph)3P) was used for the first time as an electrode for supercapacitors and exhibited an extraordinary capacitance of 951 F g-1 at 0.5 A g-1 with a high capacitance retention of 96% after 10 000 cycles at 10 A g-1, which is the highest capacitance for rare earth based materials in SCs. Such an excellent performance might be due to the fact that this material can provide plenty of electron-active sites for charge storage and electrolyte diffusion can be efficiently promoted.
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Affiliation(s)
- Xiaoyu Li
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China.
| | - Huimin Chen
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China.
| | - Chenyu Yang
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China.
| | - Yafeng Li
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China.
| | - Mingdeng Wei
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China. and State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, Fujian 350002, China
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Rondiya SR, Karbhal I, Jadhav CD, Nasane MP, Davies TE, Shelke MV, Jadkar SR, Chavan PG, Dzade NY. Uncovering the origin of enhanced field emission properties of rGO-MnO 2 heterostructures: a synergistic experimental and computational investigation. RSC Adv 2020; 10:25988-25998. [PMID: 35518634 PMCID: PMC9055343 DOI: 10.1039/d0ra03360j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/15/2020] [Indexed: 11/21/2022] Open
Abstract
The unique structural merits of heterostructured nanomaterials including the electronic interaction, interfacial bonding and synergistic effects make them attractive for fabricating highly efficient optoelectronic devices. Herein, we report the synthesis of MnO2 nanorods and a rGO/MnO2 nano-heterostructure using low-cost hydrothermal and modified Hummers' methods, respectively. Detailed characterization and confirmation of the structural and morphological properties are done via X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and Transmission Electron Microscopy (TEM). Compared to the isolated MnO2 nanorods, the rGO/MnO2 nano-heterostructure exhibits impressive field emission (FE) performance in terms of the low turn-on field of 1.4 V μm−1 for an emission current density of 10 μA cm−2 and a high current density of 600 μA cm−2 at a relatively very low applied electric field of 3.1 V μm−1. The isolated MnO2 nanorods display a high turn-on field of 7.1 for an emission current density of 10 μA cm−2 and a low current density of 221 μA cm−2 at an applied field of 8.1 V μm−1. Besides the superior FE characteristics of the rGO/MnO2 nano-heterostructure, the emission current remains quite stable over the continuous 2 h period of measurement. The improvement of the FE characteristics of the rGO/MnO2 nano-heterostructure can be ascribed to the nanometric features and the lower work function (6.01 and 6.12 eV for the rGO with 8% and 16% oxygen content) compared to the isolated α-MnO2(100) surface (Φ = 7.22 eV) as predicted from complementary first-principles electronic structure calculations based on density functional theory (DFT) methods. These results suggest that an appropriate coupling of rGO with MnO2 nanorods would have a synergistic effect of lowering the electronic work function, resulting in a beneficial tuning of the FE characteristics. The unique structural merits of heterostructured nanomaterials including the electronic interaction, interfacial bonding and synergistic effects make them attractive for fabricating highly efficient optoelectronic devices.![]()
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Affiliation(s)
- Sachin R Rondiya
- School of Chemistry, Cardiff University Main Building, Park Place Cardiff CF10 3AT Wales UK
| | - Indrapal Karbhal
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory Pune 411008 MH India
| | - Chandradip D Jadhav
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, College of Materials and Metallurgy, Wuhan University of Science and Technology Wuhan 430081 P. R. China
| | - Mamta P Nasane
- Department of Physics, Savitribai Phule Pune University Pune 411007 India
| | - Thomas E Davies
- School of Chemistry, Cardiff University Main Building, Park Place Cardiff CF10 3AT Wales UK
| | - Manjusha V Shelke
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory Pune 411008 MH India
| | - Sandesh R Jadkar
- Department of Physics, Savitribai Phule Pune University Pune 411007 India
| | - Padmakar G Chavan
- Department of Physics, School of Physical Sciences, Kavayitri Bahinabai Chaudhari North Maharashtra University Jalgaon 425001 India
| | - Nelson Y Dzade
- School of Chemistry, Cardiff University Main Building, Park Place Cardiff CF10 3AT Wales UK
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Zhong R, Xu M, Fu N, Liu R, Zhou A, Wang X, Yang Z. A flexible high-performance symmetric quasi-solid supercapacitor based on Ni-doped MnO2 nano-array @ carbon cloth. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136209] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mane V, Malavekar D, Ubale S, Lokhande V, Lokhande C. Manganese dioxide thin films deposited by chemical bath and successive ionic layer adsorption and reaction deposition methods and their supercapacitive performance. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107853] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Binder free lanthanum doped manganese oxide @ graphene oxide composite as high energy density electrode material for flexible symmetric solid state supercapacitor. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135613] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Oleylamine-assisted synthesis of manganese oxide nanostructures for high-performance asymmetric supercapacitos. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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