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Lan H, Wang J, Cheng L, Yu D, Wang H, Guo L. The synthesis and application of crystalline-amorphous hybrid materials. Chem Soc Rev 2024; 53:684-713. [PMID: 38116613 DOI: 10.1039/d3cs00860f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Crystalline-amorphous hybrid materials (CA-HMs) possess the merits of both pure crystalline and amorphous phases. Abundant dangling bonds, unsaturated coordination atoms, and isotropic structural features in the amorphous phase, as well as relatively high electronic conductivity and thermodynamic structural stability of the crystalline phase simultaneously take effect in CA-HMs. Furthermore, the atomic and bandgap mismatch at the CA-HM interface can introduce more defects as extra active sites, reservoirs for promoted catalytic and electrochemical performance, and induce built-in electric field for facile charge carrier transport. Motivated by these intriguing features, herein, we provide a comprehensive overview of CA-HMs on various aspects-from synthetic methods to multiple applications. Typical characteristics of CA-HMs are discussed at the beginning, followed by representative synthetic strategies of CA-HMs, including hydrothermal/solvothermal methods, deposition techniques, thermal adjustment, and templating methods. Diverse applications of CA-HMs, such as electrocatalysis, batteries, supercapacitors, mechanics, optoelectronics, and thermoelectrics along with underlying structure-property mechanisms are carefully elucidated. Finally, challenges and perspectives of CA-HMs are proposed with an aim to provide insights into the future development of CA-HMs.
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Affiliation(s)
- Hao Lan
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing, China.
| | - Jiawei Wang
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing, China.
| | - Liwei Cheng
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing, China.
| | - Dandan Yu
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing, China.
| | - Hua Wang
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing, China.
| | - Lin Guo
- School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing, China.
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Si P, Zheng Z, Gu Y, Geng C, Guo Z, Qin J, Wen W. Nanostructured TiO 2 Arrays for Energy Storage. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103864. [PMID: 37241492 DOI: 10.3390/ma16103864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/14/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023]
Abstract
Because of their extensive specific surface area, excellent charge transfer rate, superior chemical stability, low cost, and Earth abundance, nanostructured titanium dioxide (TiO2) arrays have been thoroughly explored during the past few decades. The synthesis methods for TiO2 nanoarrays, which mainly include hydrothermal/solvothermal processes, vapor-based approaches, templated growth, and top-down fabrication techniques, are summarized, and the mechanisms are also discussed. In order to improve their electrochemical performance, several attempts have been conducted to produce TiO2 nanoarrays with morphologies and sizes that show tremendous promise for energy storage. This paper provides an overview of current developments in the research of TiO2 nanostructured arrays. Initially, the morphological engineering of TiO2 materials is discussed, with an emphasis on the various synthetic techniques and associated chemical and physical characteristics. We then give a brief overview of the most recent uses of TiO2 nanoarrays in the manufacture of batteries and supercapacitors. This paper also highlights the emerging tendencies and difficulties of TiO2 nanoarrays in different applications.
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Affiliation(s)
- Pingyun Si
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Zhilong Zheng
- Zhanjiang Power Supply Bureau of Guangdong Power Grid Co., Ltd., Zhanjiang 524001, China
| | - Yijie Gu
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Chao Geng
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Zhizhong Guo
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Jiayi Qin
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
| | - Wei Wen
- School of Mechanical and Electrical Engineering, Collaborative Innovation Center of Ecological Civilization, Hainan University, Haikou 570228, China
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3
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Jin Y, Zhang M, Song L, Zhang M. Research Advances in Amorphous-Crystalline Heterostructures Toward Efficient Electrochemical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206081. [PMID: 36526597 DOI: 10.1002/smll.202206081] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Interface engineering of heterostructures has proven a promising strategy to effectively modulate their physicochemical properties and further improve the electrochemical performance for various applications. In this context related research of the newly proposed amorphous-crystalline heterostructures have lately surged since they combine the superior advantages of amorphous- and crystalline-phase structures, showing unusual atomic arrangements in heterointerfaces. Nonetheless, there has been much less efforts in systematic analysis and summary of the amorphous-crystalline heterostructures to examine their complicated interfacial interactions and elusory active sites. The critical structure-activity correlation and electrocatalytic mechanism remain rather elusive. In this review, the recent advances of amorphous-crystalline heterostructures in electrochemical energy conversion and storage fields are amply discussed and presented, along with remarks on the challenges and perspectives. Initially, the fundamental characteristics of amorphous-crystalline heterostructures are introduced to provide scientific viewpoints for structural understanding. Subsequently, the superiorities and current achievements of amorphous-crystalline heterostructures as highly efficient electrocatalysts/electrodes for hydrogen evolution reaction, oxygen evolution reaction, supercapacitor, lithium-ion battery, and lithium-sulfur battery applications are elaborated. At the end of this review, future outlooks and opportunities on amorphous-crystalline heterostructures are also put forward to promote their further development and application in the field of clean energy.
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Affiliation(s)
- Yachao Jin
- Institute of Energy Supply Technology for High-end Equipment, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, 210044, P. R. China
| | - Mengxian Zhang
- Institute of Energy Supply Technology for High-end Equipment, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, 210044, P. R. China
| | - Li Song
- Institute of Energy Supply Technology for High-end Equipment, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, 210044, P. R. China
| | - Mingdao Zhang
- Institute of Energy Supply Technology for High-end Equipment, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, 210044, P. R. China
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4
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Osman S, Peng C, Li F, Chen H, Shen J, Zhong Z, Huang W, Xue D, Liu J. Defect-Induced Dense Amorphous/Crystalline Heterophase Enables High-Rate and Ultrastable Sodium Storage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2205575. [PMID: 36310102 PMCID: PMC9798978 DOI: 10.1002/advs.202205575] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Currently, the construction of amorphous/crystalline (A/C) heterophase has become an advanced strategy to modulate electronic and/or ionic behaviors and promote structural stability due to their concerted advantages. However, their different kinetics limit the synergistic effect. Further, their interaction functions and underlying mechanisms remain unclear. Here, a unique engineered defect-rich V2 O3 heterophase structure (donated as A/C-V2 O3- x @C-HMCS) composed of mesoporous oxygen-deficient amorphous - hollow core (A-V2 O3- x /HMC) and lattice-distorted crystalline shell (C-V2 O3 /S) encapsulated by carbon is rationally designed via a facile approach. Comprehensive density functional theory (DFT) calculations disclose that the lattice distortion enlarges the porous channels for Na+ diffusion in the crystalline phase, thereby optimizing its kinetics to be compatible with the oxygen-vacancy-rich amorphous phase. This significantly reduces the high contrast of the kinetic properties between the crystalline and amorphous phases in A/C-V2 O3- x @C-HMCS and induces the formation of highly dense A/C interfaces with a strong synergistic effect. As a result, the dense heterointerface effectively optimizes the Na+ adsorption energy and lowers the diffusion barrier, thus accelerating the overall kinetics of A/C-V2 O3- x @C-HMCS. In contrast, the perfect heterophase (defects-free) A/C-V2 O3 @C-HCS demonstrates sparse A/C interfacial sites with limited synergistic effect and sluggish kinetics. As expected, the A/C-V2 O3- x @C-HMCS achieves a high rate and ultrastable performance (192 mAh g-1 over 6000 cycles at 10 A g-1 ) when employed for the first time as a cathode for sodium-ion batteries (SIBs). This work provides general guidance for realizing dense heterophase cathode design for high-performance SIBs and beyond.
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Affiliation(s)
- Sahar Osman
- School of Materials Science and Engineering and Guangdong ProvincialKey Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhouGuangdong510641China
| | - Chao Peng
- Multiscale Crystal Materials Research CenterShenzhen Institute of Advanced TechnologyChinese Academy of ScienceShenzhen518055China
| | - Fangkun Li
- School of Materials Science and Engineering and Guangdong ProvincialKey Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhouGuangdong510641China
| | - Haoliang Chen
- School of Materials Science and Engineering and Guangdong ProvincialKey Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhouGuangdong510641China
| | - Jiadong Shen
- School of Materials Science and Engineering and Guangdong ProvincialKey Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhouGuangdong510641China
| | - Zeming Zhong
- School of Materials Science and Engineering and Guangdong ProvincialKey Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhouGuangdong510641China
| | - Wenjie Huang
- School of Materials Science and Engineering and Guangdong ProvincialKey Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhouGuangdong510641China
| | - Dongfeng Xue
- Multiscale Crystal Materials Research CenterShenzhen Institute of Advanced TechnologyChinese Academy of ScienceShenzhen518055China
| | - Jun Liu
- School of Materials Science and Engineering and Guangdong ProvincialKey Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhouGuangdong510641China
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Yang Y, Xia J, Guan X, Wei Z, Yu J, Zhang S, Xing Y, Yang P. In Situ Growth of CoP Nanosheet Arrays on Carbon Cloth as Binder-Free Electrode for High-Performance Flexible Lithium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204970. [PMID: 36323589 DOI: 10.1002/smll.202204970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Cobalt phosphide (CoP) is considered as one of the most promising candidates for anode in lithium-ion batteries (LIBs) owing to its low-cost, abundant availability, and high theoretical capacity. However, problems of low conductivity, heavy aggregation, and volume change of CoP, hinder its practical applicability. In this study, a binder-free electrode is successfully prepared by growing CoP nanosheets arrays directly on a carbon cloth (CC) via a facile one-step electrodeposition followed by an in situ phosphorization strategy. The CoP@CC anode exhibits good interfacial bonding between the CoP and CC, which can improve the conductivity of the integrated electrode. More importantly, the 3D network structure composed of CoP nanosheets and CC provides sufficient space to alleviate the volume expansion of CoP and shorten the electron/ion transport paths. Moreover, the support of CC effectively prevents the agglomeration of CoP. Based on these advantages, when CoP@CC is paired with the NCM523 cathode, the full cell delivers a high discharge capacity 919.6 mAh g-1 (2.1 mAh cm-2 ) after 200 cycles at 0.5 A g-1 . The feasibility and safety of producing pouch cells are also explored, which show good flexibility and safety despite rigorous strikes (mechanical damage and severe deformations), implying a great potential for practical applications.
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Affiliation(s)
- Yang Yang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Jun Xia
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Xianggang Guan
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Ziwei Wei
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Jiayu Yu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Shichao Zhang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Yalan Xing
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Puheng Yang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, P. R. China
- School of Physics Science and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P. R. China
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Zhou Z, Zheng X, Liu M, Liu P, Han S, Chen Y, Lan B, Sun M, Yu L. Engineering Amorphous/Crystalline Structure of Manganese Oxide for Superior Oxygen Catalytic Performance in Rechargeable Zinc-Air Batteries. CHEMSUSCHEM 2022; 15:e202200612. [PMID: 35686961 DOI: 10.1002/cssc.202200612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Although amorphous materials are popular in oxygen electrocatalysis, their performance requires further improvement to meet the need for rechargeable zinc-air batteries. In this work, an amorphous/crystalline layered manganese oxide (ACMO) was designed, and its unique amorphous/crystalline homogeneous structure activated its oxygen reduction activity with a positive half-wave potential of 0.81 V and oxygen evolution activity with a moderate overpotential of 407 mV at 10 mA cm-2 . Moreover, the amorphous/crystalline structure endowed ACMO with excellent stability. While employed as the air-electrode material for rechargeable zinc-air batteries, ACMO overcame the poor cycling stability of manganese oxide and cycled stably for 1000 cycles (≈17 days) at 10 mA cm-2 . Besides, it delivered a high power density of 159.7 mW cm-2 and a narrow voltage gap of 0.66 V. This work gives an insight into designing oxide materials with amorphous/crystalline structure and feasible guidance for harmonizing electrochemical activity and stability.
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Affiliation(s)
- Zihao Zhou
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
| | - Xiaoying Zheng
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
- Institut National de la Recherche Scientifique (INRS), Énergie Matériaux Télécommunications (EMT), 1650, Boulevard Lionel-Boulet, Varennes, Québec, J3X 1P7, Canada
| | - Manna Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
| | - Peng Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
| | - Shengbo Han
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
| | - Yingru Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
| | - Bang Lan
- School of Chemistry and Environment, Jiaying University, 514015, Meizhou, P. R.China
| | - Ming Sun
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
| | - Lin Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006, Guangzhou, P. R. China
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Wu Q, Wang L, Mao X, Yang Y, Yan L, Zeng S, Zhao K, Huang QA, Liu M, Liu X, Zhang J, Sun X. Electronic synergy to boost the performance of NiCoP-NWs@FeCoP-NSs anodes for flexible lithium-ion batteries. NANOSCALE 2022; 14:8398-8408. [PMID: 35638373 DOI: 10.1039/d2nr01787c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Research and development of flexible lithium-ion batteries (LIBs) with high energy density and long cycle life for portable and wearable electronic devices has been a cutting-edge effort in recent years. In this paper, a novel flexible self-standing anode for LIBs is fabricated successfully, in which NiCoP nanowires (NWs) coated with FeCoP nanosheets (NSs) to form core-shell heterostructure arrays are grown on carbon cloth (CC) (designated as NiCoP-NWs@FeCoP-NSs/CC). The obtained NiCoP-NWs@FeCoP-NSs/CC anode integrates the merits of the one-dimensional (1D) NiCoP-NW core and two-dimensional (2D) FeCoP-NS shell and the CC to show a high lithium-ion storage capacity with long-term cycling stability (1172.6 mA h g-1 at 1 A g-1 up to 300 cycles with a capacity retention of 92.6%). The kinetics studies demonstrate that the pseudocapacitive behavior dominates the fast lithium storage of this anode material. For fundamental mechanistic understanding, density functional theory (DFT) analysis is carried out, and manifests that electronic synergy can boost the superior performance of the NiCoP-NWs@FeCoP-NSs/CC anode. The assembled LiFePO4//NiCoP-NWs@FeCoP-NSs/CC full battery gives a discharge capacity of 469.9 mA h g-1 at 0.5 A g-1 after 500 cycles, and even at 2 A g-1, it still can retain 581.5 mA h g-1. Besides, the soft pack full battery can keep the LED lit continuously when it is folded at different angles and maintain brightness for a period of time, highlighting the large application potential of this flexible LIB for wearable electronic devices. This work provides an idea for the design and construction of advanced metal phosphide flexible electrodes for LIBs.
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Affiliation(s)
- Qian Wu
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China.
| | - Linlin Wang
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China.
| | - Xin Mao
- Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong, 266237, China.
| | - Yujie Yang
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China.
| | - Li Yan
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China.
| | - Suyuan Zeng
- Department of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China
| | - Kangning Zhao
- Laboratory of Advanced Separations (LAS) École Polytechnique Fédérale de Lausanne (EPFL) Sion CH-1950, Switzerland
| | - Qiu-An Huang
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China.
| | - Minmin Liu
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China.
| | - Xiaojing Liu
- Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong, 266237, China.
| | - Jiujun Zhang
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China.
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, University of Western Ontario, 1151 Richmond St, London, Ontario, N6A 3 K7, Canada
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Wang X, Cheng W, Hu J, Su Y, Kong X, Uemura S, Kusunose T, Feng Q. Mesocrystalline Effect in NiTiO3/TiO2 Nanocomposite for Enhanced Capacity of Lithium-ion Battery Anode. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01501j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
H2O2-modified layered titanate H1.07Ti1.73O4 (H2O2-HTO) is an excellent precursor for topochemical synthesis but its exfoliation reaction is unclear. Herein, we reported the first study on the exfoliation reaction of H2O2-HTO...
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Jiang J, Hu Y, He X, Li Z, Li F, Chen X, Niu Y, Song J, Huang P, Tian G, Wang C. An Amorphous-Crystalline Nanosheet Arrays Structure for Ultrahigh Electrochemical Performance Supercapattery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102565. [PMID: 34510747 DOI: 10.1002/smll.202102565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Hybrid supercapacitors (HSCs), also called supercapattery, which can substitute for low power density batteries have attracted extensive interest. However, when HSCs comes to commercial applications, there is still space for improvement in energy density. It seems that designing of electrode with high capacity is an effective measure. Herein, amorphous-crystalline MoO3 -Ni3 S2 /NF-0.5 nanosheet arrays are developed as battery-type electrodes. Specifically, the sheet-like structure of crystalline Ni3 S2 can achieve rich structural nanocrystallization, improving the redox reaction efficiency. Meanwhile, the disordered structure and irregular surface of the amorphous MoO3 are conducive to maximize the contact between the electrode and electrolyte, slowing down the volume change caused by the continuous charge-discharge process. As a result, it displays an ultrahigh areal specific capacity of 8.52 C cm-2 at 5 mA cm-2 , and superior lifespan up to 7500 cycles with 90.0% retention. Further, when assembled into HSCs, the specific capacity reaches 1.47 C cm-2 , corresponding to an energy density of 4.18 mWh cm-2 at a power density of 0.34 mW cm-2 . Totally, the design of the unique structure displays a valuable measure for rational development of high energy density hybrid energy storage devices that are not limited to supercapacitors.
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Affiliation(s)
- Jing Jiang
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Yalin Hu
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Xinrui He
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Zhipeng Li
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Fu Li
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Xing Chen
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Yi Niu
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Jie Song
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Pei Huang
- School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Guiyun Tian
- School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Chao Wang
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
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