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Cai L, Gu FC, Meng SM, Zhuang AQ, Dong H, Li ZZ, Guan ZF, Li DS, Li Y, Xu XX, Li Q, Cao Q. Improved Lithium Storage Performance of a TiO 2 Anode Material Doped by Co. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1325. [PMID: 36836955 PMCID: PMC9964079 DOI: 10.3390/ma16041325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
TiO2 is a promising anode material for lithium-ion batteries (LIBs) due to its low cost, suitable operating voltage, and excellent structural stability. The inherent poor electron conductivity and low ion diffusion coefficient, however, severely limit its application in lithium storage. Here, Co-doped TiO2 is synthesized by a hydrothermal method as an anode material since Co@TiO2 possesses a large specific surface area and high electronic conductivity. Thanks to the Co dopants, the ion diffusion and electron transport are both greatly improved, which is very beneficial for cycle stability, coulombic efficiency (CE), reversible capacity, and rate performance. As a result, Co@TiO2 shows a high reversible capacity of 227 mAh g-1 at 3 C, excellent rate performance, and cycling stability with a capacity of about 125 mAh g-1 at 10C after 600 cycles (1 C = 170 mA g-1).
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Affiliation(s)
- Li Cai
- Spintronics Institute, University of Jinan, Jinan 250022, China
| | - Fang-Chao Gu
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Shu-Min Meng
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - An-Qi Zhuang
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Hang Dong
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Zi-Zhe Li
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Zhen-Feng Guan
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - De-Shuai Li
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Yong Li
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Xi-Xiang Xu
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Qiang Li
- College of Physics, Weihai Innovation Research Institute, Institute of Materials for Energy and Environment, Qingdao University, Qingdao 266071, China
| | - Qiang Cao
- Spintronics Institute, University of Jinan, Jinan 250022, China
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2
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Vertically Aligned Binder-Free TiO 2 Nanotube Arrays Doped with Fe, S and Fe-S for Li-ion Batteries. NANOMATERIALS 2021; 11:nano11112924. [PMID: 34835688 PMCID: PMC8623386 DOI: 10.3390/nano11112924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/04/2022]
Abstract
Vertically aligned Fe, S, and Fe-S doped anatase TiO2 nanotube arrays are prepared by an electrochemical anodization process using an organic electrolyte in which lactic acid is added as an additive. In the electrolyte, highly ordered TiO2 nanotube layers with greater thickness of 12 μm, inner diameter of approx. 90 nm and outer diameter of approx. 170 nm are successfully obtained. Doping of Fe, S, and Fe-S via simple wet impregnation method substituted Ti and O sites with Fe and S, which leads to enhance the rate performance at high discharge C-rates. Discharge capacities of TiO2 tubes increased from 0.13 mAh cm−2(bare) to 0.28 mAh cm−2 for Fe-S doped TiO2 at 0.5 C after 100 cycles with exceptional capacity retention of 85 % after 100 cycles. Owing to the enhancement of thermodynamic and kinetic properties by doping of Fe-S, Li-diffusion increased resulting in remarkable discharge capacities of 0.27 mAh cm−2 and 0.16 mAh cm−2 at 10 C, and 30 C, respectively.
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3
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Fakharian‐Qomi MJ, Sadeghzadeh‐Attar A. Template Based Synthesis of Plasmonic Ag‐modified TiO
2
/SnO
2
Nanotubes with Enhanced Photostability for Efficient Visible‐Light Photocatalytic H
2
Evolution and RhB Degradation. ChemistrySelect 2020. [DOI: 10.1002/slct.202001119] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mohammad Javad Fakharian‐Qomi
- Department of Metallurgy and Materials Engineering University of Kashan, P.O. Box. 87317-53153, Ghotb Ravandi Blvd. Kashan Iran
| | - Abbas Sadeghzadeh‐Attar
- Department of Metallurgy and Materials Engineering University of Kashan, P.O. Box. 87317-53153, Ghotb Ravandi Blvd. Kashan Iran
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4
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Gong T, Li Y, Lv B, Wang H, Liu Y, Yang W, Wu Y, Jiang X, Gao H, Zheng X, Bu W. Full-Process Radiosensitization Based on Nanoscale Metal-Organic Frameworks. ACS NANO 2020; 14:3032-3040. [PMID: 32150395 DOI: 10.1021/acsnano.9b07898] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Full-process radiosensitization, that is, pre-increasing radiation sensitivity of cancer cells, magnifying •OH formation during ionizing irradiation, and intervention on the resultant DNA repair for final cells death, could enhance the overall radiotherapeutic effects, but has not yet been achieved. Herein, Hf-nMOFs with Fe3+ ions uniformly dispersed (Hf-BPY-Fe) were constructed to integratedly improve radiotherapeutic effects via a multifaceted mechanism. The in vitro experiments demonstrated that persistent reactive oxygen species stress from Hf-BPY-Fe-activated in situ Fenton reaction reassorted cell cycle distribution, consequently contributing to increased tumoral radiosensitivity to photon radiation. Upon irradiation during the course of radiation therapy, Hf4+ in Hf-BPY-Fe gave substantial amounts of high-energy electrons, which partially converted H2O to •OH and, meanwhile, relaxed to a low-energy state in nMOF pores, leading to an electron-rich environment. These aggregated electrons facilitated the reduction from Fe3+ to Fe2+ and further promoted the production of •OH in the Fenton process to attack DNA. The Hf-BPY-Fe postponed the DNA damage response process by interfering with certain proteins involved in the DNA repair signaling pathway. The in vivo experiments showed improved radiotherapeutic effects from integrated contributions from Fe3+-based Fenton reaction and Hf4+-induced X-ray energy conversion in tumors. This work provides a nMOFs-based full-process radiosensitizing approach for better radiotherapeutic efficacy.
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Affiliation(s)
- Teng Gong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Yanli Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Bin Lv
- Department of Radiation Oncology, Shanghai Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Han Wang
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China
| | - Yanyan Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Wei Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Yelin Wu
- Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Xingwu Jiang
- Tongji University Cancer Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Hongbo Gao
- Department of Radiation Oncology, Shanghai Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Xiangpeng Zheng
- Department of Radiation Oncology, Shanghai Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Wenbo Bu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China
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5
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Abstract
In the growing context of sustainable chemistry, one of the challenges of organic chemists is to develop efficient and environmentally friendly methods for the synthesis of high-added-value products. Heterogeneous photocatalytic transformations have brought revolution in this regard, as they take advantage of an unlimited source of energy (solar light) or artificial UV light to onset organic chemical modifications. The abundance of free carbohydrates as chemical platform feedstock offers a great opportunity to obtain a variety of industrial interest compounds from biomass. Due to their chirality and polyfunctionality, the conversion of sugars generally requires multi-step protocols with protection/deprotection steps and hazardous chemical needs. In this context, several selective and eco-friendly methodologies are currently under development. This review presents a state of art of the recent accomplishments concerning the use of photocatalysts for the transformation and valorization of free carbohydrates. It discusses the approaches leading to the selective oxidation of free sugars, their degradation into organic chemicals, or their use for hydrogen production.
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6
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Chen S, Lv LP, Xiao S, Sun W, Li X, Wang Y. Iron-Modified Graphites toward Boosted Lithium/Sodium Storage Performance and Long-Term Cyclability. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Si Chen
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, People’s Republic of China
| | - Li-Ping Lv
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, People’s Republic of China
| | - Suo Xiao
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, People’s Republic of China
| | - Weiwei Sun
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, People’s Republic of China
| | - Xiaopeng Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, People’s Republic of China
| | - Yong Wang
- Department of Chemical Engineering, School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, People’s Republic of China
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7
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Hunault MOJY, Khan W, Minár J, Kroll T, Sokaras D, Zimmermann P, Delgado-Jaime MU, de Groot FMF. Local vs Nonlocal States in FeTiO 3 Probed with 1s2pRIXS: Implications for Photochemistry. Inorg Chem 2017; 56:10882-10892. [PMID: 28872322 PMCID: PMC5636175 DOI: 10.1021/acs.inorgchem.7b00938] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Indexed: 11/28/2022]
Abstract
Metal-metal charge transfer (MMCT) is expected to be the main mechanism that enables the harvesting of solar light by iron-titanium oxides for photocatalysis. We have studied FeTiO3 as a model compound for MMCT with 1s2pRIXS at the Fe K-edge. The high-energy resolution XANES enables distinguishing five pre-edge features. The three first well distinct RIXS features are assigned to electric quadrupole transitions to the localized Fe* 3d states, shifted to lower energy by the 1s core-hole. Crystal field multiplet calculations confirm the speciation of divalent iron. The contribution of electric dipole absorption due to local p-d mixing allowed by the trigonal distortion of the cation site is supported by DFT and CFM calculations. The two other nonlocal features are assigned to electric dipole transitions to excited Fe* 4p states mixed with the neighboring Ti 3d states. The comparison with DFT calculations demonstrates that MMCT in ilmenite is favored by the hybridization between the Fe 4p and delocalized Ti 3d orbitals via the O 2p orbitals.
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Affiliation(s)
- Myrtille O. J. Y. Hunault
- Inorganic Chemistry
and Catalysis, Debye Institute for Nanomaterial Science, Utrecht University, 3584CG Utrecht, The Netherlands
| | - Wilayat Khan
- New Technologies-Research Center, University
of West Bohemia, Univerzitni
8, 306 14 Plzeň, Czech Republic
| | - Jan Minár
- New Technologies-Research Center, University
of West Bohemia, Univerzitni
8, 306 14 Plzeň, Czech Republic
| | - Thomas Kroll
- Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Dimosthenis Sokaras
- Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Patric Zimmermann
- Inorganic Chemistry
and Catalysis, Debye Institute for Nanomaterial Science, Utrecht University, 3584CG Utrecht, The Netherlands
| | - Mario U. Delgado-Jaime
- Inorganic Chemistry
and Catalysis, Debye Institute for Nanomaterial Science, Utrecht University, 3584CG Utrecht, The Netherlands
| | - Frank M. F. de Groot
- Inorganic Chemistry
and Catalysis, Debye Institute for Nanomaterial Science, Utrecht University, 3584CG Utrecht, The Netherlands
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8
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Seyama T, Tanimura T, Tashiro K, Yamazaki S. Photocatalytic degradation of trichloroethylene on platinum ion-doped TiO2 under visible light irradiation. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3051-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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He H, Sun D, Zhang Q, Fu F, Tang Y, Guo J, Shao M, Wang H. Iron-Doped Cauliflower-Like Rutile TiO 2 with Superior Sodium Storage Properties. ACS APPLIED MATERIALS & INTERFACES 2017; 9:6093-6103. [PMID: 28121119 DOI: 10.1021/acsami.6b15516] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Developing advanced anodes for sodium ion batteries is still challenging. In this work, Fe-doped three-dimensional (3D) cauliflower-like rutile TiO2 was successfully synthesized by a facile hydrolysis method followed by a low-temperature annealing process. The influence of Fe content on the structure, morphology, and electrochemical performance was systematically investigated. When utilized as a sodium ion battery anode, 6.99%-Fe-doped TiO2 exhibited the best electrochemical performance. This sample delivered a very high reversible capacity (327.1 mAh g-1 at 16.8 mA g-1) and superior rate performance (160.5 mAh g-1 at 840 mA g-1), as well as long-term cycling stability (no capacity fading at 1680 mA g-1 over 3000 cycles). Density functional theory (DFT) calculations combined with experimental results indicated that the significantly improved sodium storage ability of the Fe-doped sample should be mainly due to the increased oxygen vacancies, narrowed band gap, and lowered sodiation energy barrier, which enabled much higher electronic/ionic conductivities and more favorable sodium ion intercalation into rutile TiO2.
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Affiliation(s)
- Hanna He
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, P.R China
| | - Dan Sun
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, P.R China
| | - Qi Zhang
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, P.R China
| | - Fang Fu
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
| | - Yougen Tang
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, P.R China
| | - Jun Guo
- School of Chemistry and Materials Science, Guizhou Normal University , Guiyang 550001, P.R China
| | - Minhua Shao
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
| | - Haiyan Wang
- College of Chemistry and Chemical Engineering, Central South University , Changsha 410083, P.R China
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
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10
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Photocatalytic Properties of Doped TiO2 Coatings Deposited Using Reactive Magnetron Sputtering. COATINGS 2017. [DOI: 10.3390/coatings7010010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Review on Undoped/Doped TiO2Nanomaterial; Synthesis and Photocatalytic and Antimicrobial Activity. J CHIN CHEM SOC-TAIP 2016. [DOI: 10.1002/jccs.201600735] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Towards a large scale aqueous sol-gel synthesis of doped TiO2: Study of various metallic dopings for the photocatalytic degradation of p-nitrophenol. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.06.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Ren H, Koshy P, Cao F, Sorrell CC. Multivalence Charge Transfer in Doped and Codoped Photocatalytic TiO2. Inorg Chem 2016; 55:8071-81. [DOI: 10.1021/acs.inorgchem.6b01200] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hangjuan Ren
- School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Pramod Koshy
- School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Fuyang Cao
- School of Materials Science and Engineering, UNSW Australia, Sydney, NSW 2052, Australia
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14
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He X, Cao J, Hu Z. Green preparation of novel heptafluo-zirconate/hafnate nanocrystals at ambient temperature. NEW J CHEM 2016. [DOI: 10.1039/c5nj02736e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel method to fabricate, under ambient conditions, pure and doped heptafluo-zirconate/hafnate nanocrystalsviaa convenient complex chemical procedure.
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Affiliation(s)
- Xianghong He
- School of Chemistry and Environmental Engineering
- Jiangsu University of Technology
- Changzhou
- China
| | - Jinxin Cao
- School of Chemistry and Environmental Engineering
- Jiangsu University of Technology
- Changzhou
- China
| | - Ziyi Hu
- School of Chemistry and Environmental Engineering
- Jiangsu University of Technology
- Changzhou
- China
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15
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Zou X, Ran C, Dong Y, Chen Z, Dong D, Hu D, Li X, Cui Y. Synthesis and characterization of BiPO4/g-C3N4 nanocomposites with significantly enhanced visible-light photocatalytic activity for benzene degradation. RSC Adv 2016. [DOI: 10.1039/c5ra01607j] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BiPO4/g-C3N4 nanocomposites were fabricated by a hydrothermal method including calcination and showed high photocatalytic activity under visible light.
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Affiliation(s)
- Xuejun Zou
- Department of Environmental Science and Technology
- Dalian Minzu University
- Dalian
- China
| | - Chunqiu Ran
- Department of Environmental Science and Technology
- Dalian Minzu University
- Dalian
- China
- State Key Laboratory of Fine Chemical and Key Laboratory of Industrial Ecology and Environmental Engineering
| | - Yuying Dong
- Department of Environmental Science and Technology
- Dalian Minzu University
- Dalian
- China
| | - Zhaobo Chen
- Department of Environmental Science and Technology
- Dalian Minzu University
- Dalian
- China
| | - Dapeng Dong
- School of Physics and Materials Engineering
- Dalian Minzu University
- Dalian 116600
- China
| | - Dongxue Hu
- Department of Environmental Science and Technology
- Dalian Minzu University
- Dalian
- China
| | - Xinyong Li
- State Key Laboratory of Fine Chemical and Key Laboratory of Industrial Ecology and Environmental Engineering
- School of Environmental Sciences and Technology
- Dalian University of Technology
- Dalian
- China
| | - Yubo Cui
- Department of Environmental Science and Technology
- Dalian Minzu University
- Dalian
- China
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16
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Fang J, Liu W, Yu F, Qin F, Wang M, Zhang K, Lai Y. Fe, S co-doped anatase TiO2 nanotubes as anodes with improved electrochemical performance for lithium ion batteries. RSC Adv 2016. [DOI: 10.1039/c6ra13850k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Fe, S co-doped TiO2 nanotubes are synthesized by a sol–gel and subsequent chemical process, exhibiting improved electrochemical performance for LIBs.
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Affiliation(s)
- Jing Fang
- Powder Metallurgy Research Institute of Central South University
- Changsha
- China
- School of Metallurgy and Environment
- Central South University
| | - Wenwen Liu
- School of Metallurgy and Environment
- Central South University
- Changsha
- China
| | - Fan Yu
- School of Metallurgy and Environment
- Central South University
- Changsha
- China
| | - Furong Qin
- School of Metallurgy and Environment
- Central South University
- Changsha
- China
| | - Mengran Wang
- School of Metallurgy and Environment
- Central South University
- Changsha
- China
| | - Kai Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha
- China
| | - Yanqing Lai
- School of Metallurgy and Environment
- Central South University
- Changsha
- China
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17
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Coleman N, Perera S, Gillan EG. Rapid solid-state metathesis route to transition-metal doped titanias. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.09.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Goriparti S, Miele E, Prato M, Scarpellini A, Marras S, Monaco S, Toma A, Messina GC, Alabastri A, De Angelis F, Manna L, Capiglia C, Zaccaria RP. Direct Synthesis of Carbon-Doped TiO2-Bronze Nanowires as Anode Materials for High Performance Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25139-25146. [PMID: 26492841 DOI: 10.1021/acsami.5b06426] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Carbon-doped TiO2-bronze nanowires were synthesized via a facile doping mechanism and were exploited as active material for Li-ion batteries. We demonstrate that both the wire geometry and the presence of carbon doping contribute to the high electrochemical performance of these materials. Direct carbon doping for example reduces the Li-ion diffusion length and improves the electrical conductivity of the wires, as demonstrated by cycling experiments, which evidenced remarkably higher capacities and superior rate capability over the undoped nanowires. The as-prepared carbon-doped nanowires, evaluated in lithium half-cells, exhibited lithium storage capacity of ∼306 mA h g(-1) (91% of the theoretical capacity) at the current rate of 0.1C as well as excellent discharge capacity of ∼160 mAh g(-1) even at the current rate of 10 C after 1000 charge/discharge cycles.
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Affiliation(s)
- Subrahmanyam Goriparti
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
- Department of Physics, University of Genoa , Via Dodecaneso-33, Genova-16146, Italy
| | - Ermanno Miele
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Mirko Prato
- Department of Nanochemistry, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Alice Scarpellini
- Department of Nanochemistry, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Sergio Marras
- Department of Nanochemistry, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Simone Monaco
- Department of Nanochemistry, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Andrea Toma
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Gabriele C Messina
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Alessandro Alabastri
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Francesco De Angelis
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Liberato Manna
- Department of Nanochemistry, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Claudio Capiglia
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
| | - Remo Proietti Zaccaria
- Department of Nanostructures, Istituto Italiano di Tecnologia , Via Morego-30, Genova-16163, Italy
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19
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Patra S, Davoisne C, Bouyanfif H, Foix D, Sauvage F. Phase stability frustration on ultra-nanosized anatase TiO2. Sci Rep 2015; 5:10928. [PMID: 26042388 PMCID: PMC4455250 DOI: 10.1038/srep10928] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 05/07/2015] [Indexed: 11/09/2022] Open
Abstract
This work sheds light on the exceptional robustness of anatase TiO2 when it is downsized to an extreme value of 4 nm. Since at this size the surface contribution to the volume becomes predominant, it turns out that the material becomes significantly resistant against particles coarsening with temperature, entailing a significant delay in the anatase to rutile phase transition, prolonging up to 1000 °C in air. A noticeable alteration of the phase stability diagram with lithium insertion is also experienced. Lithium insertion in such nanocrystalline anatase TiO2 converts into a complete solid solution until almost Li1TiO2, a composition at which the tetragonal to orthorhombic transition takes place without the formation of the emblematic and unwished rock salt Li1TiO2 phase. Consequently, excellent reversibility in the electrochemical process is experienced in the whole portion of lithium content.
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Affiliation(s)
- Snehangshu Patra
- Laboratoire de Réactivité et Chimie des Solides, Université de Picardie Jules Verne, CNRS UMR 7314, 33 rue Saint Leu, 80039 Amiens, France
- Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459, France
| | - Carine Davoisne
- Laboratoire de Réactivité et Chimie des Solides, Université de Picardie Jules Verne, CNRS UMR 7314, 33 rue Saint Leu, 80039 Amiens, France
- Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459, France
| | - Houssny Bouyanfif
- Laboratoire de Physique de la Matière Condensée, Université de Picardie Jules Verne, 33 rue Saint Leu, 80039 Amiens, France
| | - Dominique Foix
- Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459, France
- IPREM/ECP (CNRS UMR5254), University of Pau, Helioparc, 2 Av. Pierre Angot, 64053 Pau Cedex 9, France
| | - Frédéric Sauvage
- Laboratoire de Réactivité et Chimie des Solides, Université de Picardie Jules Verne, CNRS UMR 7314, 33 rue Saint Leu, 80039 Amiens, France
- Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR CNRS 3459, France
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Lai Y, Liu W, Fang J, Qin F, Wang M, Yu F, Zhang K. Fe-doped anatase TiO2/carbon composite as an anode with superior reversible capacity for lithium storage. RSC Adv 2015. [DOI: 10.1039/c5ra19518g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This paper reports an economic and effective wet chemistry process to prepare Fe-doped anatase TiO2/carbon composite with excellent performance in lithium-ion batteries.
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Affiliation(s)
- Yanqing Lai
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Wenwen Liu
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Jing Fang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Furong Qin
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Mengran Wang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Fan Yu
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
| | - Kai Zhang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- PR China
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