4.6 Article

Mesoporous spherical Li4Ti5O12/TiO2 composites as an excellent anode material for lithium-ion batteries

期刊

ELECTROCHIMICA ACTA
卷 212, 期 -, 页码 41-46

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.06.153

关键词

aerosol spray; lithium ion battery; anode material; Li4Ti5O12/TiO2 composite; mesoporous structure

资金

  1. National Natural Science Foundation of China [21271009, 21471006]
  2. Doctoral Fund of the Ministry of Education of China [20123424110002]
  3. Programs for Science and Technology Development of Anhui Province [1501021019]
  4. Program for Innovative Research Team of Anhui Education Committee
  5. Program for Talents Team of University in Anhui

向作者/读者索取更多资源

Mesoporous spherical Li4Ti5O12/TiO2 composites have been synthesized by a facile aerosol spraying hydrolysis method following calcine at 600 degrees C for 8 h. The as-obtained samples were characterized by XRD, SEM, TEM, BET surface area, and XPS. The mesoporous spherical Li4Ti5O12/TiO2 exhibits superior electrochemical performance as an anode material for lithium-ion batteries than both the simple Li4Ti5O12 and non-porous Li4Ti5O12/TiO2. The discharge specific capacity of the mesoporous spherical Li4Ti5O12/TiO2 composite is 161, 143, and 111 mAh/g at 1C, 5C and 20C, respectively, and retains 93.04% (145.27 mAh/g) capacity after 120 cycles at 2C. Therefore, the as-obtained mesoporous spherical dual-phase Li4Ti5O12/TiO2 composite is potential to be applied as an efficient anode material for Li ion batteries. (C) 2016 Elsevier Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Multidisciplinary Sciences

Titania supported synergistic palladium single atoms and nanoparticles for room temperature ketone and aldehydes hydrogenation

Long Kuai, Zheng Chen, Shoujie Liu, Erjie Kan, Nan Yu, Yiming Ren, Caihong Fang, Xingyang Li, Yadong Li, Baoyou Geng

NATURE COMMUNICATIONS (2020)

Article Nanoscience & Nanotechnology

Ru Nanoworms Loaded TiO2 for Their Catalytic Performances toward CO Oxidation

Caihong Fang, Xiaomin Jiang, Jinwu Hu, Jiaojiao Song, Na Sun, Deliang Zhang, Long Kuai

Summary: This study presents a successful synthesis method for ultra-small and uniform Ru nanoparticles, and investigates their high catalytic activity in CO oxidation reactions.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Applied

Hollow mesoporous CeO2 microspheres for efficient loading of Au single-atoms to catalyze the water-gas shift reaction

Yapeng Xiang, Jie He, Na Sun, Yuteng Fan, Liming Yang, Caihong Fang, Long Kuai

MICROPOROUS AND MESOPOROUS MATERIALS (2020)

Article Chemistry, Physical

Dispersion and support dictated properties and activities of Pt/metal oxide catalysts in heterogeneous CO oxidation

Jiaojiao Song, Yixuan Yang, Shoujie Liu, Lei Li, Nan Yu, Yuteng Fan, Zhiming Chen, Long Kuai, Baoyou Geng

Summary: This study investigates the impact of dispersion and support on the activity of Pt in CO oxidation reaction, revealing that reducible TiO2 significantly influences Pt activity with lower apparent activation barriers, and that single-atom dispersion of Pt maximizes active sites.

NANO RESEARCH (2021)

Article Chemistry, Applied

High-loading single-atom Pt/TiO2 mesoporous catalysts for superior photocatalytic oxidation of benzyl alcohol

Na Sun, Jiaojiao Song, Qingmei Tao, Erjie Kan, Long Kuai

Summary: Photocatalysis using metal oxide semiconductors and solar energy is an attractive green method for converting organics. This study successfully achieved high-efficiency mesoporous TiO2 decorated with single atomic Pt, which improved reaction performance by constructing high-density single-atom reaction sites.

MICROPOROUS AND MESOPOROUS MATERIALS (2022)

Article Chemistry, Inorganic & Nuclear

Boosting the Activity of Single-Atom Pt1/CeO2 via Co Doping for Low-Temperature Catalytic Oxidation of CO

Qingmei Tao, Jiaojiao Song, Na Sun, Yiming Ren, Linlin Xiang, Shoujie Liu, Long Kuai

Summary: In this study, Co-doped CeO2-supported single-atom Pt catalysts were synthesized and found to promote low-temperature oxidation of CO. The activity of the catalysts can be easily modified by changing the loading of Pt and/or doping amount of Co. These findings provide a new approach for the design of catalysts for CO oxidation at low temperature.

INORGANIC CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

High-Areal Density Single-Atoms/Metal Oxide Nanosheets: A Micro-Gas Blasting Synthesis and Superior Catalytic Properties

Long Kuai, Li Liu, Qingmei Tao, Nan Yu, Erjie Kan, Na Sun, Shoujie Liu, Baoyou Geng

Summary: This study develops an efficient micro-gas blasting strategy to prepare versatile noble metal single-atoms/metal oxide nanosheets catalysts. The Pt/CeO2 nanosheets catalyst exhibit superior reactivity and stability in the water-gas shift reaction.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

Article Biochemistry & Molecular Biology

Superelastic and multifunctional fibroin aerogels from multiscale silk micro-nanofibrils exfoliated via deep eutectic solvent

Haiwei Yang, Peng Wang, Qiliang Yang, Dengfeng Wang, Yong Wang, Long Kuai, Zongqian Wang

Summary: Superelastic silk fibroin (SF)-based aerogels are fabricated by extracting preserved mesostructures of SF fibers as building blocks. These aerogels, called SMNFAs, demonstrate desirable properties including low density and superelasticity. The potential applications of SMNFAs in air purification and thermal insulation are also investigated to exhibit their functionality.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2023)

Article Chemistry, Multidisciplinary

MOF-derived multicomponent Fe2P-Co2P-Ni2P hollow architectures for efficient hydrogen evolution

Tingjuan Wang, Feiran Chen, Jiahao Wang, Chao Wang, Long Kuai, Baoyou Geng

Summary: In this study, Fe and Ni were introduced into Co-MOF to create a multicomponent phosphide hollow architecture. The multicomponent nature enhanced the catalytic activity, while the sheet-like surface and inter-sheet voids allowed for better electrolyte penetration and gas generation. The optimized product showed excellent catalytic hydrogen evolution reaction (HER) performance and long-term stability at different current densities.

CHEMICAL COMMUNICATIONS (2023)

Article Chemistry, Inorganic & Nuclear

Atomically Incorporating Ni into Mesoporous CeO2 Matrix via Synchronous Spray-Pyrolysis as Efficient Noble-Metal-Free Catalyst for Low-Temperature CO Oxidation

Na Sun, Linlin Xiang, Bingsen Zhuge, Erjie Kan, Nan Yu, Lei Li, Long Kuai

Summary: This study demonstrates an excellent and cost-effective Ni-Ce-Ox catalyst prepared by synchronous spray-pyrolysis, which shows excellent catalytic performance in low-temperature CO oxidation reactions. The optimized Ni incorporation leads to a significant decrease in T50 and higher CO conversion rate. Theoretical calculations reveal that the reduction in oxygen vacancy formation energy at Ni-Ce single-atom sites enhances the adsorption activation of CO molecules. Furthermore, the Ni-Ce-Ox catalyst prepared by synchronous spray-pyrolysis exhibits superior performance compared to the counterparts prepared by immersion and hydrothermal methods.

INORGANIC CHEMISTRY (2022)

Article Chemistry, Inorganic & Nuclear

Synergistic Acid Hydrogen Evolution of Neighboring Pt Single Atoms and Clusters: Understanding Their Superior Activity and Mechanism

Chao Wang, Hu Zang, Changjiang Liu, Jiahao Wang, Long Kuai, Baoyou Geng

Summary: This study reveals the influence of Pt and Ru loading and PtRu alloy modification on the catalytic performance of Cu(111) electrodes through oxygen isotope tracing experiments and computational theoretical calculations. The results show that Pt loading increases the surface H-adsorption activity of Cu and has an independent activation energy route, while Ru loading enhances the adsorption strength of H2O on Pt surface and promotes hydrogen evolution. Based on this finding, a PtRu/Cu(111) catalyst is constructed in this study, and the molar ratio between Pt and Ru is optimized to achieve the best catalytic performance.

INORGANIC CHEMISTRY (2023)

Article Chemistry, Physical

Spatially confined (Au core)/CeO2-(Au nanoclusters) hierarchical nanostructures as highly active and stable catalysts for CO oxidation

Zhiqing Cui, Xin Wang, Ran Li, Long Kuai, Caihong Fang

Summary: A feasible one-pot approach was developed to prepare Au core/CeO2-(Au nanoclusters) nanostructures without surfactants, which exhibited significantly improved activity and stability in CO conversion. The special architecture of Au/CeO2-Au provided abundant exposed Au atoms and oxygen vacancies, ensuring effective reactant transfer and preventing aggregation or further growth during catalysis. The conversion remained at 100% even after 300 hours and 20 cycles, making this work a new pathway for designing effective catalysts with high activity and stability, especially for small-sized metal nanoclusters.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

Article Chemistry, Multidisciplinary

Carbon-Supported High-Loading Sub-4 nm PtCo Alloy Electrocatalysts for Superior Oxygen Reduction Reaction

Linlin Xiang, Yunqin Hu, Yanyan Zhao, Sufeng Cao, Long Kuai

Summary: This study presents a PtCo/C alloy catalyst with a lower particle size and higher electrochemical surface area compared to commercial catalysts. The optimized synthesis conditions resulted in a PtCo/C catalyst with improved mass activity, showing potential for practical use in fuel cells.

NANOMATERIALS (2023)

Article Materials Science, Multidisciplinary

PtCl x Intermediates Strategy to Ultrahigh-Loading Sub-3 nm Pt/C Catalysts for H2-Air Fuel Cells

Yunqin Hu, Linlin Xiang, Long Kuai, Yanyan Zhao, Sufeng Cao, Li Liu, Caihong Fang, Baoyou Geng

Summary: This research establishes a new method of incipient wetness impregnation (IWI) for preparing high-loading Pt/C catalysts with sub-3 nm Pt nanoparticles and a loading up to 60 wt%. A two-step reduction strategy is developed to overcome the limitations of traditional IWI method in controlling the size of Pt nanoparticles at high loadings. The as-prepared 60% Pt/C catalyst exhibits high power density and low Pt loading, outperforming the state-of-the-art commercial 60% Pt/C in H-2-air fuel cells.

ACS MATERIALS LETTERS (2023)

Article Chemistry, Applied

Superior single-atom Pt/TiO2 mesoporous microspheres via microdrops-confined pyrolysis/deposition for low-temperature CO oxidation

Linlin Xiang, Shunsheng Wang, Long Kuai

Summary: This work presents the synthesis of mesoporous single-atom Pt1/TiO2 microspheres using a polymer micelle-induced method. The obtained catalysts demonstrate high surface area and pore volume, and exhibit superior activity for CO oxidation at low temperatures. The catalysts show a significant improvement of 50-60 °C in CO conversion compared to non-mesoporous catalysts prepared using conventional methods. This study provides a new approach for the development of efficient single-atom catalysts for CO oxidation.

MICROPOROUS AND MESOPOROUS MATERIALS (2024)

Article Electrochemistry

Recent advances in Bio-mass by electrochemically strategies generated hydrogen gas production: Environmentally sustainable technologies innovation

Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro

Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

ACGNet: An interpretable attention crystal graph neural network for accurate oxidation potential prediction

Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao

Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Enhanced electrochemical performance of CuO/NiO/rGO for oxygen evolution reaction

P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha

Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Carbon nanofibers implanted porous catalytic metal oxide design as efficient bifunctional electrode host material for lithium-sulfur battery

Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li

Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Spray coating of carbon nanoparticles as an effective and scalable method to enhance the performance of stainless steel anode in microbial electrochemical systems

Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo

Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Electrochemical properties of Li-rich ternary cathode material Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase

Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu

Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Post-mortem analysis of the Li-ion battery with charge/discharge deterioration in high- and low-temperature environments

Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda

Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

A Co3O4-x/Co nanocomposite with synergistically enhanced electrochemical activity for reduction of nitrite to ammonia

Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen

Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Facile fabrication of NaOH nanorods on pencil graphite electrode for simultaneous electrochemical detection of natural antioxidants by deep eutectic solvent

Berna Dalkiran, Havva Bekirog

Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

A three-dimensional fibrous tungsten-oxide/carbon composite derived from natural cellulose substance as an anodic material for lithium-ion batteries

Sijun Ren, Jianguo Huang

Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Stabilizing the dissolution kinetics by interstitial Zn cations in CoMoO4 for oxygen evolution reaction at high potential

Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian

Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Molecular insights on optimizing nanoporous carbon-based supercapacitors with various electrolytes

Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings

Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Interaction between bilirubin oxidase and Au nanoparticles distributed over dimpled titanium foil towards oxygen reduction reaction

Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou

Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Electrochemical supercapacitor and water splitting electrocatalysis applications of self-grown amorphous Ni(OH)2 nanosponge-balls

Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane

Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.

ELECTROCHIMICA ACTA (2024)

Article Electrochemistry

Versatile mixed ionic-electronic conducting binders for high-power, high-energy batteries

Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado

Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.

ELECTROCHIMICA ACTA (2024)